Companies starting with Q

53,593 records.

• Quantum Social Care LtdActive, Residential care activities for learning difficulties, mental health and substance abuse, Northolt, United Kingd
• Quantum Societa' Cooperativa SocialeActive, Altamura, Italy
• Quantum Societa' SempliceActive, Torino, Italy
• Quantum Society Sociedad LimitadaActive, Pontevedra, Spain
• Quantum Software LimitedActive, Other amusement and recreation activities n.e.c., Barnsley, United Kingdom
• Quantum Software Solutions Private LimitedActive, Maharashtra, since 2012
• Quantum software Spółka AkcyjnaActive, Kraków, Poland
• Quantum Software Technologies Private Li MitedStruck off, Karnataka, since 1994
• Quantum Solar Galaxy Solutions Private LimitedActive, Meghalaya, since 2026
• Quantum Solar LimitedActive, Activities of head offices, London, United Kingdom
• Quantum Solar Marketing Private LimitedStruck off, Bihar, since 2011
• Quantum Solar Private LimitedStruck off, Maharashtra, since 2000
• Quantum Solaris Consulting Private LimitedActive, Rajasthan, since 2019
• Quantum Solutions & Consulting LtdActive, Other business support service activities n.e.c., London, United Kingdom
• Quantum Solutions (London) LimitedActive (proposal to strike off), Quantity surveying activities, Shipley, United Kingdom
• Quantum Solutions Emerging Markets SLActive, Madrid, Spain
• Quantum Solutions Emerging Markets UK LtdActive, Activities of other holding companies n.e.c., London, United Kingdom
• Quantum Solutions Group LtdActive, Manufacture of other food products n.e.c., Woking, United Kingdom
• Quantum Solutions LimitedActive, Development of building projects, Kilmarnock, United Kingdom
• Quantum Solutions Merton LimitedActive (proposal to strike off), Plumbing, heat and air-conditioning installation, Morden, United Kingdom
• Quantum Solutions Private Limited.Active, Karnataka, since 1976
• Quantum Solutions Pvt LtdUnder process of striking off, Gujarat, since 1995
• Quantum Sonic LimitedActive, Information technology consultancy activities, London, United Kingdom
• Quantum Sonic Records Private LimitedActive, Punjab, since 2026
• Quantum Soup Studios LimitedLiquidation, Ready-made interactive leisure and entertainment software development, Manchester, United Kingdom
• Quantum Source LimitedActive, Other service activities n.e.c., Egham, United Kingdom
• Quantum Source Solutions LLPActive, Karnataka
• Quantum Sourcing LimitedActive, Other activities of employment placement agencies, London, United Kingdom
• Quantum SP Solutions LtdActive, Information technology consultancy activities, Altrincham, United Kingdom
• Quantum Space
• Quantum Space BelgiumActive, Rochefort, Belgium
• Quantum Space Resources LimitedActive, Business and domestic software development, Banbury, United Kingdom
• Quantum Spacetime Technologies Private LimitedActive, Maharashtra, since 2021
• Quantum Spark LtdActive, Engineering related scientific and technical consulting activities, Eastleigh, United Kingdom
• Quantum Spatial India Private LimitedActive, Karnataka, since 2017
• Quantum Special Opportunities FundActive, Singapore, Singapore
• Quantum Specialities Private LimitedActive, Maharashtra, since 2011
• Quantum Speed LimitedActive, Information technology consultancy activities, Stevenage, United Kingdom
• Quantum Sphere Consulting LimitedActive, Retail sale via mail order houses or via Internet, Stratford Upon Avon, United Kingdom
• Quantum Sphere Industries LtdActive, Activities of financial services holding companies, Westbury, United Kingdom
• Quantum Sphere LtdActive, Information technology consultancy activities, Southampton, United Kingdom
• Quantum Sphere Ventures LLPActive, since 2025
• Quantum Spin LimitedLiquidation, Manufacture of other electrical equipment, Penryn, United Kingdom
• Quantum Spinning & Weaving Private LimitedStruck off, Maharashtra, since 2005
• Quantum Sport Analytics LtdActive (proposal to strike off), Video production activities, Wallington, United Kingdom
• Quantum Sport LimitedActive, Other sports activities, Twickenham, United Kingdom
• Quantum Sporting Club LtdActive, Event catering activities, London, United Kingdom
• Quantum Sports LimitedActive, Hong Kong, Hong Kong
• Quantum Sports Ventures Private LimitedActive, Delhi, since 2011
• Quantum Spraytech LtdActive, Painting, Paignton, United Kingdom
• Quantum Sprint LtdActive, Tortola, United Kingdom
• Quantum Sprint LtdActive, Road Town, British Virgin Islands
• Quantum Sprung LtdActive, Non-trading company, London, United Kingdom
• Quantum Square LtdActive, Buying and selling of own real estate, London, United Kingdom
• Quantum Stack Private LimitedActive, Maharashtra, since 2024
• Quantum Staffing International LimitedActive, Human resources provision and management of human resources functions, Corby, United Kingdom
• Quantum Star (MCR) LimitedActive, Construction of commercial buildings, Warrington, United Kingdom
• Quantum Star LimitedLive but Receiver Manager on at least one charge, Construction of domestic buildings, Saddleworth Oldham, United Kingdom
• Quantum Star LLPActive, since 2025
• Quantum State LimitedActive, Electrical installation, Grays, United Kingdom
• Quantum State Management LtdActive, Other letting and operating of own or leased real estate, London, United Kingdom
• Quantum Stellar Limited PartnershipActive, London, United Kingdom
• Quantum Step B.V.Active, Utrecht, Kingdom of the Netherlands
• Quantum Step Consulting Private LimitedStruck off, Karnataka, since 2009
• Quantum Steps Learning LtdActive, General secondary education, Kingston Upon Thames, United Kingdom
• Quantum Stock Broking Private LimitedActive, West Bengal, since 2000
• Quantum Stockinvest Private LimitedStruck off, Chandigarh, since 2000
• Quantum Stocks Private Limited.Amalgamated, Delhi, since 2000
• Quantum Stone Private LimitedStruck off, Karnataka, since 2011
• Quantum Stone UK LtdActive, Wholesale of wood, construction materials and sanitary equipment, Sheffield, United Kingdom
• Quantum Storage (India) Private LimitedActive, Karnataka, since 2012
• Quantum Storage UK LimitedActive, Business and domestic software development, London, United Kingdom
• Quantum Store LtdActive, Retail sale via mail order houses or via Internet, Oldham, United Kingdom
• Quantum Store Trade LtdActive, Retail sale via mail order houses or via Internet, Spennymoor, United Kingdom
• Quantum Stratedge LLPActive, since 2025
• Quantum Strategic Business Ventures Private LimitedStruck off, Delhi, since 2008
• Quantum Strategic Consultancy LLPActive, since 2023
• Quantum Strategic Consultancy Services LimitedActive, Management consultancy activities other than financial management, Bristol, United Kingdom
• Quantum Strategic Partners Ltd.Active, George Town, Grand Cayman, Cayman Islands
• Quantum Strategic Solutions LimitedIn Administration, Publish journals & periodicals, Warrington, United Kingdom
• Quantum Strategies LimitedActive, Other business support service activities n.e.c., Hemel Hempstead, United Kingdom
• Quantum Strategists LtdActive (proposal to strike off), Manufacture of other wearing apparel and accessories n.e.c., London, United Kingdom
• Quantum Strategix Technologies Private LimitedActive, Telangana, since 2026
• Quantum Strategy and Technology LtdActive, Management consultancy activities other than financial management, Hebden Bridge, United Kingdom
• Quantum Strategy International LLPActive, Croydon, United Kingdom
• Quantum Strategy LimitedActive, Other letting and operating of own or leased real estate, Croydon, United Kingdom
• Quantum Stride Solutions LtdActive, Other professional, scientific and technical activities n.e.c., London, United Kingdom
• Quantum Strides India Private LimitedActive, Tamil Nadu, since 2016
• Quantum Structural Design LtdActive, Construction of other civil engineering projects n.e.c., Wellington, United Kingdom
• Quantum Structures LtdActive, Other research and experimental development on natural sciences and engineering, Newcastle Upon Tyne, United Kin
• Quantum Structures Private LimitedActive, Telangana, since 2008
• Quantum Studio LtdActive, Other publishing activities, London, United Kingdom
• Quantum Studios
• Quantum SunActive, Paris, France
• Quantum Supernova Tech SLActive, Puerto Del Rosario, Spain
• Quantum Supply Chain Solutions Private LimitedActive, Maharashtra, since 2011
• Quantum Supply LtdActive, Retail sale of tobacco products in specialised stores, Manchester, United Kingdom
• Quantum Support LtdActive, Information technology consultancy activities, Haywards Heath, United Kingdom
• Quantum Supreme Capital LtdActive, Business and domestic software development, London, United Kingdom
• Quantum Surge Motors LLPActive, Maharashtra, since 2026
• Quantum Surgicals Private LimitedActive, Karnataka, since 2012
• Quantum Survey & Project Management LimitedActive, Quantity surveying activities, Weston-Super-Mare, United Kingdom
• Quantum Surveying & Commercial Management LimitedActive (proposal to strike off), Dormant Company, Bexley, United Kingdom
• Quantum Surveying & Estimating LtdActive, Quantity surveying activities, Bristol, United Kingdom
• Quantum Surveying & Project Management Services LimitedActive, Buying and selling of own real estate, Bampton, United Kingdom
• Quantum Surveying LimitedActive, Quantity surveying activities, Kent, United Kingdom
• Quantum Surveyors LimitedActive, Quantity surveying activities, Shifnal, United Kingdom
• Quantum Sustainability Consulting Private LimitedActive, Tamil Nadu, since 2025
• Quantum Sustainable Assets S.à r.l.Active, Wecker, Luxembourg
• Quantum Swan OÜActive, Tallinn, Estonia
• Quantum Swansea LLPActive, Bournemouth, United Kingdom
• Quantum Swarm LimitedActive, Advertising agencies, London, United Kingdom
• Quantum Switch Admin LtdActive, Other service activities n.e.c., Cheltenham, United Kingdom
• Quantum Switch Austria LtdActive, Other service activities n.e.c., Cheltenham, United Kingdom
• Quantum Switch Czech Republic LtdActive, Other service activities n.e.c., Cheltenham, United Kingdom
• Quantum Switch Europe LtdActive, Activities of other holding companies n.e.c., Cheltenham, United Kingdom
• Quantum Switch Finland LimitedActive, Activities of other holding companies n.e.c., Cheltenham, United Kingdom
• Quantum Switch Greece LtdActive, Other service activities n.e.c., Cheltenham, United Kingdom
• Quantum Switch Group Services LimitedActive, Activities of other holding companies n.e.c., Cheltenham, United Kingdom
• Quantum Switch Holdings LimitedActive, Activities of other holding companies n.e.c., Cheltenham, United Kingdom
• Quantum Switch LimitedActive, Development of building projects, Cheltenham, United Kingdom
• Quantum Switch Norway LimitedActive, Activities of other holding companies n.e.c., Cheltenham, United Kingdom
• Quantum Switchgears and Controls Private LimitedActive, Rajasthan, since 2008
• Quantum Syndicate Ventures LtdActive, Business and domestic software development, London, United Kingdom
• Quantum Synergetic LtdActive, Management consultancy activities other than financial management, Gravesend, United Kingdom
• Quantum Synergy Systems Private LimitedActive, Delhi, since 2024
• Quantum Synthetic Intelligence Private LimitedActive, Meghalaya, since 2026
• Quantum Systech Private LimitedActive, Maharashtra, since 2025
• Quantum System Management LimitedActive, Buying and selling of own real estate, Christchurch, United Kingdom
• Quantum Systemes LtdActive, Bookkeeping activities, Carrickfergus, United Kingdom
• Quantum Systemes LtdActive, Hillsborough, United Kingdom
• Quantum SystemsActive, Aartselaar, Belgium
• Quantum Systems Integration Private LimitedActive, Tamil Nadu, since 2008
• Quantum Systems Private LimitedStruck off, Maharashtra, since 2000
• Quantum T Super PL ATF Quantum T SFActive, Ipswich, Australia
• Quantum Talent Solutions LimitedActive, Other activities of employment placement agencies, Alfreton, United Kingdom
• Quantum Tangle
• Quantum Tantra Private LimitedUnder process of striking off, Uttar Pradesh, since 2015
• Quantum Tax LimitedActive, Non-trading company, London, United Kingdom
• Quantum Taxis LtdActive (proposal to strike off), Taxi operation, Aldershot, United Kingdom
• Quantum Teacup LtdActive, Non-specialised wholesale trade, London, United Kingdom
• Quantum Tech Building Solutions Private LimitedActive, Maharashtra, since 2015
• Quantum Tech Erp LLPActive, since 2026
• Quantum Tech Growth FundActive, Capellen, Luxembourg
• Quantum Tech Holdings LtdActive, Combined office administrative service activities, London, United Kingdom
• Quantum Tech Innovations LtdActive, Other retail sale in non-specialised stores, Birkenhead, United Kingdom
• Quantum Tech OyActive, Helsinki, Finland
• Quantum Tech Partners LtdActive, Business and domestic software development, London, United Kingdom
• Quantum Tech Solutions LtdActive (proposal to strike off), Business and domestic software development, London, United Kingdom
• Quantum Tech Solutions Private LimitedActive, West Bengal, since 2009
• Quantum Tech Stack Private LimitedActive, Telangana, since 2026
• Quantum Tech Wide Lens LLPActive, since 2025
• Quantum Techbot Private LimitedActive, Uttar Pradesh, since 2023
• Quantum Technical Communications LimitedLiquidation, United Kingdom
• Quantum Technical Industries LimitedLiquidation, Churchill Way, United Kingdom
• Quantum Technical LimitedLiquidation, Engineering related scientific and technical consulting activities, Bradford, United Kingdom
• Quantum Technical Public Relations LimitedActive, Advertising agencies, Warrington, United Kingdom
• Quantum Techno Systems Private LimitedStruck off, West Bengal, since 2007
• Quantum Technolabs Private LimitedActive, Gujarat, since 2012
• Quantum TechnologiesLake Forest
• Quantum Technologies and Infrastructure Private LimitedActive, Chhattisgarh, since 2026
• Quantum Technologies Associates LimitedActive, Information technology consultancy activities, Loughborough, United Kingdom
• Quantum Technologies Global Pte. Ltd.Active, Singapore, Singapore
• Quantum Technologies LtdActive, Engineering related scientific and technical consulting activities, Loughborough, United Kingdom
• Quantum Technologies Private LimitedActive, Andhra Pradesh, since 1988
• Quantum Technologies Solution LtdActive, Other information technology service activities, Harrow, United Kingdom
• Quantum Technologies Spółka Z Ograniczoną OdpowiedzialnościąActive, Tychy, Poland
• Quantum Technology (UK) LtdActive, Other information service activities n.e.c., London, United Kingdom
• Quantum Technology Corp.Active, Vancouver, Canada
• Quantum Technology Group LPActive, Edinburgh, United Kingdom
• Quantum Technology Korea SLActive, Madrid, Spain
• Quantum Technology Marketing Group LimitedActive, Activities of call centres, Reading, United Kingdom
• Quantum Technology Precision Private LimitedActive, Tamil Nadu, since 2026
• Quantum Technology Solutions Inc (UK) LtdActive, Business and domestic software development, London, United Kingdom
• Quantum Technology Solutions LimitedActive, Other information technology service activities, London, United Kingdom
• Quantum Technology Super Sensors LtdActive, Other professional, scientific and technical activities n.e.c., Northallerton, United Kingdom
• Quantum Technology Yy LtdActive, Retail sale of computers, peripheral units and software in specialised stores, London, United Kingdom
• Quantum Technotrade LLPActive, since 2025
• Quantum Technovia Private LimitedActive, Tamil Nadu, since 2024
• Quantum Techworks Private LimitedActive, Uttar Pradesh, since 2024
• Quantum Teddington LLPInactive, Bournemouth, United Kingdom
• Quantum Teknik LimitedActive, Other specialised construction activities n.e.c., Eastbourne, United Kingdom
• Quantum Tele & Security Services Private LimitedActive, Uttar Pradesh, since 2011
• Quantum Telecom LimitedActive, Other telecommunications activities, Inchinnan, United Kingdom
• Quantum Telecom Sociedad AnonimaInactive, Pozuelo De Alarcón, Spain
• Quantum Teleradiology Private LimitedActive, Maharashtra, since 2020
• Quantum Tensor LLPActive, since 2026
• Quantum Teq LtdActive, Wireless telecommunications activities, London, United Kingdom
• Quantum Tera LtdActive, Information technology consultancy activities, Colchester, United Kingdom
• Quantum Terminals PLCActive, Tema, Ghana
• Quantum Terrain LLPActive, since 2024
• Quantum Tex Garments LLPActive, since 2026
• Quantum Texas Holding LTDActive, Nassau, The Bahamas
• Quantum Textile Solutions LtdActive, Other service activities n.e.c., Nottingham, United Kingdom
• Quantum Theatre LimitedActive, Support activities to performing arts, Chislehurst, United Kingdom
• Quantum Theory Consulting Private LimitedActive, Delhi, since 2022
• Quantum Theory LtdActive (proposal to strike off), Information technology consultancy activities, Plymouth, United Kingdom
• Quantum Therapeutics LimitedActive, Wholesale of pharmaceutical goods, Welling, United Kingdom
• Quantum Thermal Technology Limited LimitedActive, Other manufacturing n.e.c., Northwood,, United Kingdom
• Quantum Thoughts LLPActive, Tamil Nadu
• Quantum Thread Private LimitedActive, Maharashtra, since 2024
• Quantum Thrive CicActive, Other social work activities without accommodation n.e.c., Wolverhampton, United Kingdom
• Quantum Tiger LimitedActive, Information technology consultancy activities, Warrington, United Kingdom
• Quantum Time Reversal LLPActive, since 2024
• Quantum Topco LimitedActive, Activities of other holding companies n.e.c., Nottingham, United Kingdom
• Quantum Torque LimitedActive, Maintenance and repair of motor vehicles, London, United Kingdom
• Quantum Totus LimitedActive, Financial management, Royston, United Kingdom
• Quantum Tourism and Financial Vistas Private LimitedActive, Delhi, since 1999
• Quantum Trade LLCActive, Kingstown, Saint Vincent and the Grenadines
• Quantum Trade LPActive, Edinburgh, United Kingdom
• Quantum Trade Solutions LimitedActive (proposal to strike off), Financial intermediation not elsewhere classified, Worksop, United Kingdom
• Quantum Tradelinks Private LimitedActive, West Bengal, since 2010
• Quantum Tradeomaker Private LimitedActive, Maharashtra, since 2025
• Quantum Tradesource Private LimitedStruck off, Delhi, since 2014
• Quantum Tradework Private LimitedActive, Haryana, since 2026
• Quantum Trading Business Private LimitedActive, Delhi, since 2025
• Quantum Trading Education LimitedActive, Technical and vocational secondary education, Petersfield, United Kingdom
• Quantum Trading LimitedActive, Retail sale via mail order houses or via Internet, Derby, United Kingdom
• Quantum Trading London LtdActive, Retail sale via mail order houses or via Internet, London, United Kingdom
• Quantum Trading OyActive, Helsinki, Finland
• Quantum Trading Private LimitedStruck off, Maharashtra, since 1989
• Quantum Trading Serivces Private LimitedActive, Maharashtra, since 2025
• Quantum Trading Software LimitedActive, Business and domestic software development, Petersfield, United Kingdom
• Quantum Trading Solutions LtdActive, Retail sale via mail order houses or via Internet, Isleworth, United Kingdom
• Quantum Trading Spółka Z Ograniczoną OdpowiedzialnościąActive, Konin, Poland
• Quantum Traffic Management (Eastern) LtdActive, Construction of roads and motorways, Doncaster, United Kingdom
• Quantum Traffic Management (Northern) LimitedActive, Construction of roads and motorways, Wrexham, United Kingdom
• Quantum Traffic Management (Southern) LimitedActive, Other transportation support activities, Scunthorpe, United Kingdom
• Quantum Traffic Management LimitedActive, Construction of roads and motorways, Newport, United Kingdom
• Quantum Trainers LtdActive, Physical well-being activities, Henley-In-Arden, United Kingdom
• Quantum Training Academy LimitedActive, Other education n.e.c., Southend-On-Sea, United Kingdom
• Quantum Training LimitedActive, Other education n.e.c., St. Albans, United Kingdom
• Quantum Transfers & Securities LtdActive, Activities of other holding companies n.e.c., Burton-On-Trent, United Kingdom
• Quantum Translation Services LtdActive, Translation and interpretation activities, London, United Kingdom
• Quantum Transport LtdActive, Freight transport by road, Ipswich, United Kingdom
• Quantum Transport Planning Ltd.Active, Other professional, scientific and technical activities n.e.c., Bath, United Kingdom
• Quantum Trap SLActive, Benitachell/Poble Nou De Benitatxell, El, Spain
• Quantum Travel LtdActive, Management consultancy activities other than financial management, Maidenhead, United Kingdom
• Quantum Travel Services LtdActive, Taxi operation, Bournemouth, United Kingdom
• Quantum Travel Towers Pty. Ltd.Active, South Melbourne, Australia
• Quantum Travels Private LimitedActive, Maharashtra, since 1996
• Quantum Trilogy UK LtdActive, Other professional, scientific and technical activities n.e.c., London, United Kingdom
• Quantum Trust LimitedActive, Hong Kong, Hong Kong
• Quantum Trustee Company Private LimitedActive, Maharashtra, since 2005
• Quantum Tubers Bio - Tech (India) LimitedStruck off, Tamil Nadu, since 2007
• Quantum Tuition LimitedActive (proposal to strike off), Educational support services, London, United Kingdom
• Quantum Tuner LimitedActive, Manufacture of other special-purpose machinery n.e.c., Hackney, United Kingdom
• Quantum Tuning LimitedActive, Wholesale trade of motor vehicle parts and accessories, Maidenhead, United Kingdom
• Quantum Turned Parts LimitedActive, Manufacture of other fabricated metal products n.e.c., Hinckley, United Kingdom
• Quantum Tutoring LtdActive, Educational support services, Slough, United Kingdom
• Quantum Twenty One LtdActive, Book publishing, Swindon, United Kingdom
• Quantum Two Spółka Z Ograniczoną OdpowiedzialnościąActive, Jędrzejów, Poland
• Quantum U.K LtdActive, Other service activities n.e.c., Purley, United Kingdom
• Quantum UK Associates LtdActive, Other service activities n.e.c., Cheadle, United Kingdom
• Quantum UK Business Solutions LimitedActive, Bookkeeping activities, Hertfordshire, United Kingdom
• Quantum UK Consultancy LtdActive, Bookkeeping activities, Hayes, United Kingdom
• Quantum UK Holdings LimitedActive, Other business support service activities n.e.c., London, United Kingdom
• Quantum UK Management LLPActive, London, United Kingdom
• Quantum UK Uw LtdActive, Activities of insurance agents and brokers, Wadhurst, United Kingdom
• Quantum Unicorn LLPActive, Haryana, since 2018
• Quantum Unicorn LtdActive, Information technology consultancy activities, London, United Kingdom
• Quantum Unified Adaptive Defense Private LimitedActive, Andhra Pradesh, since 2026
• Quantum United LimitedActive, Other letting and operating of own or leased real estate, Romford, United Kingdom
• Quantum UnityActive, Saint-Avit-Senieur, France
• Quantum Unity LtdActive, Other business support service activities n.e.c., Chippenham, United Kingdom
• Quantum Universal LLPActive, since 2023
• Quantum UniversityRoorkee
• Quantum Urja Private LimitedActive, Madhya Pradesh, since 1999
• Quantum Utility Management LtdActive, Activities of call centres, Rossendale, United Kingdom
• Quantum Utility Solutions LimitedActive, Management consultancy activities other than financial management, London, United Kingdom
• Quantum V Investment PartnersActive, Dover, United States
• Quantum V LimitedActive, Non-trading company, London, United Kingdom
• Quantum V. Consultancy LimitedActive, Management consultancy activities other than financial management, Salisbury, United Kingdom
• Quantum Valeat LtdActive, Retail sale via mail order houses or via Internet, London, United Kingdom
• Quantum Valebat Management LimitedActive, Activities of head offices, Bristol, United Kingdom
• Quantum Validation Auditors LtdActive (proposal to strike off), Other information technology service activities, Blackpool, United Kingdom
• Quantum Valley Private LimitedActive, Andhra Pradesh, since 2025
• Quantum Valuations & Surveys LimitedActive, Other professional, scientific and technical activities n.e.c., Henley-On-Thames, United Kingdom
• Quantum Valuations LLPActive, Henley-On-Thames, United Kingdom
• Quantum Value Information Technology Services LimitedActive, Business and domestic software development, Pinner, United Kingdom
• Quantum Value IT Services Private LimitedStruck off, Telangana, since 2009
• Quantum Value LimitedActive, Web portals, Thatcham, United Kingdom
• Quantum Vanguard LtdActive, Other service activities n.e.c., London, United Kingdom
• Quantum Vanijya LLPActive, West Bengal
• Quantum Vanijya Private LimitedConverted to LLP, West Bengal, since 2009
• Quantum Vantage Ltd.Active, Other professional, scientific and technical activities n.e.c., Esher, United Kingdom
• Quantum Vastgoed B.V.Active, Amsterdam, Kingdom of the Netherlands
• Quantum Vector LLPActive, since 2026
• Quantum Vector SRLActive, București, Sectorul 4, Romania
• Quantum Vehicles Private LimitedActive, Chhattisgarh, since 2023
• Quantum Venture Group Pty LtdActive, Stirling, Australia
• Quantum Venture Labs LtdActive, Business and domestic software development, Market Harborough, United Kingdom
• Quantum Venture OÜActive, Tallinn, Estonia
• Quantum Venture Software Private LimitedStruck off, Maharashtra, since 2011
• Quantum VenturesActive, Paris, France
• Quantum VenturesActive, Bengaluru, India
• Quantum Ventures LLPActive, London, United Kingdom
• Quantum Ventures Management LtdActive, Dormant Company, Milton Keynes, United Kingdom
• Quantum Verge Private LimitedActive, Uttar Pradesh, since 2024
• Quantum Vertex LtdActive, Information technology consultancy activities, Reading, United Kingdom
• Quantum Vertex Solutions Private LimitedActive, Bihar, since 2026
• Quantum Verwaltungs GmbHActive, Kleve, Germany
• Quantum Vessels LLPActive, since 2026
• Quantum VFX Studios LLPActive, Maharashtra, since 2024
• Quantum View Technologies LtdActive, Dormant Company, Nottingham, United Kingdom
• Quantum Vincom Private LimitedActive, West Bengal, since 2009
• Quantum Vinimay Private LimitedActive, West Bengal, since 2005
• Quantum Vintrade Private LimitedActive, West Bengal, since 2010
• Quantum Visas Immigration and Careers Consultancy LLPActive, Uttar Pradesh
• Quantum Visas LimitedActive, Travel agency activities, London, United Kingdom
• Quantum Vision LtdActive (proposal to strike off), Retail sale via stalls and markets of other goods, London, United Kingdom
• Quantum Vision Technologies Private LimitedActive, Karnataka, since 2026
• Quantum Vision, SLActive, Coslada, Spain
• Quantum Vista LtdActive, Business and domestic software development, London, United Kingdom
• Quantum Visualization LimitedActive, Physical well-being activities, Huddersfield, United Kingdom
• Quantum Vita LtdActive, Other information service activities n.e.c., Broadstone, United Kingdom
• Quantum Vitality LimitedActive, Manufacture of homogenized food preparations and dietetic food, Maidenhead, United Kingdom
• Quantum Vortex Private LimitedActive, Tamil Nadu, since 2017
• Quantum VPN LtdActive, Other information technology service activities, Derry, United Kingdom
• Quantum Vyapaar Private LimitedActive, West Bengal, since 2008
• Quantum Ware LtdActive, Retail sale via mail order houses or via Internet, London, United Kingdom
• Quantum Waste LtdActive, Recovery of sorted materials, London, United Kingdom
• Quantum Water Corporation LimitedActive (proposal to strike off), Water collection, treatment and supply, Brentford, United Kingdom
• Quantum Water Private LimitedStruck off, Delhi, since 2010
• Quantum Wave I Fondo De Inversion PrivadoActive, Santiago, Chile
• Quantum Wave Leap International Private LimitedActive, West Bengal, since 2024
• Quantum Wave LtdActive, Other information technology service activities, Bristol, United Kingdom
• Quantum Wave Media LimitedActive, Retail sale via mail order houses or via Internet, Kington, United Kingdom
• Quantum Wave Publishing LtdActive (proposal to strike off), Book publishing, London, United Kingdom
• Quantum Way LimitedActive, Other business support service activities n.e.c., Sutton, United Kingdom
• Quantum Wealth & Wellness Private LimitedActive, Maharashtra, since 2026
• Quantum Wealth Innovations LtdActive (proposal to strike off), Event catering activities, Bristol, United Kingdom
• Quantum Wealth Management LLCActive, Lewes, United States
• Quantum Wealth Management LtdActive, Financial intermediation not elsewhere classified, Huby, United Kingdom
• Quantum Wealth Management Private LimitedStruck off, Tamil Nadu, since 2012
• Quantum Wealth Planning LtdActive, Financial intermediation not elsewhere classified, Tunbridge Wells, United Kingdom
• Quantum Wealth Planning LtdActive, Tunbridge Wells, United Kingdom
• Quantum Wealth SAActive, Paradiso, Switzerland
• Quantum Wealth Solutions Private LimitedActive, West Bengal, since 2007
• Quantum Wealth Ta Moniq LtdActive, Activities of financial services holding companies, Milton Keynes, United Kingdom
• Quantum Web Solutions LtdActive, Other information technology service activities, Truro, United Kingdom
• Quantum Websolutions Private LimitedStruck off, Delhi, since 2012
• Quantum Wellness & Prevention Private LimitedActive, Rajasthan, since 2025
• Quantum Wellness Technologies LtdActive, Other human health activities, Glasgow, United Kingdom
• Quantum Whale UK LimitedActive, Information technology consultancy activities, London, United Kingdom
• Quantum Wide Format LtdActive, specialised design activities, London, United Kingdom
• Quantum Wills and Estate Planning LtdActive, Other professional, scientific and technical activities n.e.c., Hertfordshire, United Kingdom
• Quantum Windows LimitedActive, Other manufacturing n.e.c., Watford, United Kingdom
• Quantum WMS Solutions LimitedActive, Information technology consultancy activities, Altrincham, United Kingdom
• Quantum Wood Private LimitedActive, West Bengal, since 2025
• Quantum Workforce Private LimitedActive, Maharashtra, since 2026
• Quantum Works LtdActive, Maintenance and repair of motor vehicles, Hadlow, United Kingdom
• Quantum Works Private LimitedActive, Telangana, since 2025
• Quantum World LimitedActive, Other professional, scientific and technical activities n.e.c., Morden, United Kingdom
• Quantum World Technologies LtdActive, Information technology consultancy activities, London, United Kingdom
• Quantum World Tele Services Private LimitedActive, Noida, since 2013
• Quantum World-Team, S.L.Active, Madrid, Spain
• Quantum Worldwide LimitedActive, Management consultancy activities other than financial management, London, United Kingdom
• Quantum Worldwide Private LimitedActive, Madhya Pradesh, since 2026
• Quantum Worldwide Property LtdActive, Buying and selling of own real estate, London, United Kingdom
• Quantum Worldwide Services LimitedActive, Buying and selling of own real estate, London, United Kingdom
• Quantum X Futures LtdActive, Other information technology service activities, London, United Kingdom
• Quantum X Inc.Listed, United States
• Quantum X Labs Inc.Active, Lewes, United States
• Quantum X Labs Inc.Listed, United States
• Quantum X LimitedActive, Information technology consultancy activities, London, United Kingdom
• Quantum Xploration International LimitedActive, Extraction of crude petroleum, London, United Kingdom
• Quantum Yield SRLActive, San Giovanni In Persiceto, Italy
• Quantum Yoga LimitedActive, Other human health activities, Chingford, United Kingdom
• Quantum You LtdActive, Other business support service activities n.e.c., Manchester, United Kingdom
• Quantum Ys1 LLPActive, London, United Kingdom
• Quantum Ys2 LimitedActive, Other letting and operating of own or leased real estate, London, United Kingdom
• Quantum Yuedong Technology LimitedActive (proposal to strike off), Non-specialised wholesale trade, Cardiff, United Kingdom
• Quantum Z Plus Detective & Armed Squad Private LimitedStruck off, Maharashtra, since 2010
• Quantum Zen LLPActive, since 2023
• Quantum Zero LimitedActive, Retail sale of audio and video equipment in specialised stores, Catterick Garrison, United Kingdom
• Quantum Zero Technologies LtdActive, Information technology consultancy activities, London, United Kingdom
• Quantum Zone LtdActive (proposal to strike off), Business and domestic software development, London, United Kingdom
• Quantum Zone Private LimitedActive, Delhi, since 2024
• Quantum Zyrex Private LimitedActive, Tamil Nadu, since 2026
• QUANTUM, a.s.Active, Vyškov, Czech Republic
• Quantum-8 GmbHInactive, Frankfurt Am Main, Germany
• Quantum-Bio Private LimitedActive, Karnataka, since 2026
• Quantum-Bio Pty LtdActive, Mount Barker, Australia
• Quantum-C Hungary Közvetítő ÉS Tanácsadó Korlátolt Felelősségű TársaságInactive, Budapest, Hungary
• QUANTUM-COMPLEX Vagyonkezelő Korlátolt Felelősségű TársaságActive, Pécs, Hungary
• Quantum-Computers Scotland Ltd.Active, Other professional, scientific and technical activities n.e.c., Forres, United Kingdom
• Quantum-Dynamic Business Solutions Private LimitedStruck off, Karnataka, since 2013
• Quantum-H (Services) LimitedActive, Dormant Company, Reading, United Kingdom
• Quantum-H AI LimitedActive, Business and domestic software development, Reading, United Kingdom
• Quantum-H LimitedActive, Business and domestic software development, Reading, United Kingdom
• Quantum-HAEK-FondsActive, Hamburg, Germany
• Quantum-Housing Association LimitedActive, Management of real estate on a fee or contract basis, Blackburn, United Kingdom
• Quantum-Hq LLPActive, Kerala
• Quantum-Hydroponics LimitedActive, Manufacture of other plastic products, Leicester, United Kingdom
• Quantum-Jigsaw Consulting LtdActive, Other professional, scientific and technical activities n.e.c., Gateshead, United Kingdom
• Quantum-Link Communications Private LimitedActive, Maharashtra, since 1997
• Quantum-Opt Cyber Security Solutions Private LimitedActive, Telangana, since 2020
• Quantum-Quay LtdActive, Other holiday and other collective accommodation, Blandford Forum, United Kingdom
• QUANTUM-R Kereskedelmi és Szolgáltató Korlátolt Felelősségű TársaságActive, Budapest, Hungary
• Quantum-Sanitas LtdActive, Other business support service activities n.e.c., Manchester, United Kingdom
• Quantum-Si IncListed, United States
• Quantum-Star LimitedActive, Tortola, United Kingdom
• Quantum-Stride Ventures Private LimitedActive, Gujarat, since 2025
• Quantum-Surveyors (Sussex) LtdActive, Quantity surveying activities, Henfield, United Kingdom
• Quantum-SystemsOtterfing, Germany
• Quantum-Systems GmbHActive, Gilching, Germany
• Quantum-Systems LtdActive, Service activities incidental to air transportation, Birmingham, United Kingdom
• Quantum-World Ventures Private LimitedActive, Karnataka, since 2025
• Quantum07 Traders LtdActive, Non-specialised wholesale trade, London, United Kingdom
• Quantum1 Consulting LtdActive, Other information technology service activities, Coventry, United Kingdom
• Quantum11 LimitedActive, Maintenance and repair of motor vehicles, Crewe, United Kingdom
• Quantum121 LtdActive, Business and domestic software development, London, United Kingdom
• Quantum24 Energy LtdActive (proposal to strike off), Plumbing, heat and air-conditioning installation, Birmingham, United Kingdom
• Quantum3 Financial Services LtdActive, Activities of insurance agents and brokers, Belfast, United Kingdom
• Quantum3 Studio LtdActive, Printing n.e.c., Woking, United Kingdom
• Quantum36 Value Labs Private LimitedActive, Haryana, since 2024
• Quantum3Dcomputer graphics, San Jose, United States
• Quantum3d LtdActive, Other reservation service activities n.e.c., London, United Kingdom
• Quantum44 LtdActive, Wholesale trade of motor vehicle parts and accessories, Dungannon, United Kingdom
• Quantum4change LtdActive, Management consultancy activities other than financial management, Enfield, United Kingdom
• Quantum4ox Incubation Private LimitedActive, Uttar Pradesh, since 2024
• Quantum4u Lab Private LimitedActive, Bihar, since 2016
• Quantum7 Smart-Soft (OPC) Private LimitedActive, Uttarakhand, since 2026
• Quantum76uk LimitedActive, Wholesale of wood, construction materials and sanitary equipment, Belfast, United Kingdom
• Quantum8 Advisory LimitedActive, Management consultancy activities other than financial management, London, United Kingdom
• Quantum9 LtdActive, Business and domestic software development, London, United Kingdom
• Quantum9x Edtech LLPActive, since 2025
• Quantuma Advisory (Yorkshire) LimitedActive, Accounting and auditing activities, Leeds, United Kingdom
• Quantuma Advisory LimitedActive, Accounting and auditing activities, London, United Kingdom
• Quantuma Corporate Finance LimitedActive, Financial intermediation not elsewhere classified, London, United Kingdom
• Quantuma International Advisory LimitedActive, Accounting and auditing activities, London, United Kingdom
• Quantumach Solutions & Technologies LLPActive, Haryana
• Quantumade LimitedActive, Other research and experimental development on natural sciences and engineering, London, United Kingdom
• Quantumads Private LimitedActive, Maharashtra, since 2024
• Quantumadv LimitedInactive, Attard, Malta
• Quantumaeon Holdings Private LimitedStruck off, Karnataka, since 2012
• Quantumaeon Services Private LimitedStruck off, Karnataka, since 2011
• Quantumaerospace Techno (OPC) Private LimitedActive, Tamil Nadu, since 2023
• Quantumai India Private LimitedActive, Haryana, since 2023
• Quantumai Innovation Private LimitedActive, Haryana, since 2025
• Quantumai Intelligence (OPC) Private LimitedActive, Punjab, since 2025
• Quantumai Os Private LimitedActive, Gujarat, since 2026
• Quantumai Systems Private LimitedActive, Kerala, since 2026
• Quantumai Technologies Private LimitedActive, Uttar Pradesh, since 2024
• Quantumaize Software Solutions LLPActive, Telangana, since 2025
• Quantumalpha LLPActive, since 2024
• Quantumapps Labs Private LimitedActive, Gujarat, since 2025
• Quantumapps LtdActive, Information technology consultancy activities, Birmingham, United Kingdom
• Quantumarc Infotech Private LimitedActive, Delhi, since 2025
• Quantumarc Private LimitedActive, Karnataka, since 2022
• Quantumarcade Games (OPC) Private LimitedActive, Tamil Nadu, since 2025
• Quantumarcade Interactive Private LimitedActive, Maharashtra, since 2024
• Quantumark Masterclass Consulting (OPC) Private LimitedActive, Jammu and Kashmir, since 2026
• Quantumassists Solutions Private LimitedActive, Maharashtra, since 2024
• Quantumatica LtdActive, Information technology consultancy activities, King'S Lynn, United Kingdom
• Quantumatix Technologies Private LimitedActive, Madhya Pradesh, since 2022
• Quantumaura LtdActive, Wholesale of electronic and telecommunications equipment and parts, London, United Kingdom
• Quantumax Logic LLPActive, Haryana, since 2025
• Quantumaze Technologies LLPActive, since 2025
• Quantumbay Fund Ifsc LLPActive, since 2025
• Quantumbeam Communications LimitedActive, Wired telecommunications activities, West Midlands, England, United Kingdom
• Quantumbees Infotech Private LimitedActive, West Bengal, since 2023
• Quantumbees Services Private LimitedActive, Bihar, since 2025
• Quantumberg Technologies Private LimitedActive, Karnataka, since 2022
• Quantumbholdings LtdActive, Activities of other holding companies n.e.c., London, United Kingdom
• Quantumbio Institute of Practical Psychophysics (India) Private LimitedActive, Maharashtra, since 2026
• Quantumbit Technologies Solutions LLPStruck off, Gujarat
• Quantumbiz Learning and Solutions LLPActive, since 2023
• Quantumblack Visual Analytics LimitedActive, Information technology consultancy activities, London, United Kingdom
• Quantumbleu Marketing and Services India Private LimitedStruck off, Karnataka, since 2014
• Quantumbloom AI LimitedActive, Business and domestic software development, Birmingham, United Kingdom
• Quantumblue Data and Analytics Consulting LLPActive, since 2024
• Quantumboost Finserv LLPActive, since 2025
• Quantumboost Greentech LLPActive, since 2025
• Quantumbotics & Kineticprints (OPC) Private LimitedStruck off, Karnataka, since 2023
• Quantumbox LtdActive (proposal to strike off), Growing of vegetables and melons, roots and tubers, Cardiff, United Kingdom
• Quantumbox Private LimitedActive, Uttar Pradesh, since 2018
• Quantumbrain FoundationActive, Maharashtra, since 2025
• Quantumbrain Innovations LtdInactive, London, United Kingdom
• Quantumbricks India Private LimitedActive, Telangana, since 2020
• Quantumbridge - LdaActive, Alvalade, Portugal
• Quantumbridge Solutions LLPActive, Telangana, since 2026
• Quantumbridge Solutions LtdActive, Retail sale via mail order houses or via Internet, London, United Kingdom
• Quantumbridge Technologies LLPActive, since 2026
• Quantumbrix Private LimitedActive, Uttar Pradesh, since 2025
• Quantumbuy India Private LimitedActive, Delhi, since 2023
• Quantumbyte Digital LtdActive, Retail sale of telecommunications equipment other than mobile telephones, London, United Kingdom
• Quantumbyte Embiotic Solutions Private LimitedActive, Uttar Pradesh, since 2025
• Quantumbyte Global Networks LimitedActive, Information technology consultancy activities, Luton, United Kingdom
• Quantumbyte IT LtdActive, Business and domestic software development, Hatfield, United Kingdom
• Quantumbyte IT Solutions Private LimitedActive, Uttar Pradesh, since 2023
• Quantumbyte Private LimitedActive, Haryana, since 2026
• Quantumbyte Systems Private LimitedActive, Rajasthan, since 2024
• Quantumbyte Web Solutions LLPActive, since 2024
• Quantumbytes Software Private LimitedActive, Bihar, since 2025
• Quantumcalls (OPC) Private LimitedActive, Uttar Pradesh, since 2025
• Quantumcap Innovest LLPActive, since 2026
• Quantumcap LtdActive, Business and domestic software development, London, United Kingdom
• Quantumcare Hospital LLPActive, Haryana, since 2025