Companies starting with P
699,599 records.
- Protocol Informatics Private LimitedActive, Karnataka, since 2007
- Protocol Infosystems Private LimitedStruck off, Karnataka, since 2000
- Protocol Innovation Programming Private LimitedStruck off, Telangana, since 2012
- Protocol Insurance Surveyors & Loss Assessors Private LimitedActive, Delhi, since 1994
- Protocol Integrated Management Services Private LimitedActive, West Bengal, since 2012
- Protocol International LimitedActive, Development of building projects, London, United Kingdom
- Protocol Investigation and Security Services (Goa) Private LimitedStruck off, Goa, since 2005
- Protocol Investments LimitedActive, Other business support service activities n.e.c., Hambrook, United Kingdom
- Protocol IT LimitedActive, Business and domestic software development, Loughborough, United Kingdom
- Protocol IT Techno-Sols Private LimitedActive, Uttar Pradesh, since 2023
- Protocol Labels India Private LimitedActive, Tamil Nadu, since 2007
- Protocol Laboratories LtdActive, Retail sale via mail order houses or via Internet, London, United Kingdom
- Protocol LabsSan Francisco, United States
- Protocol Labs LimitedActive, Other food services, Dartford, United Kingdom
- Protocol Labs, Inc.Active, Wilmington, United States
- Protocol Leads Infotech Private LimitedActive, Kolhapur, since 2016
- Protocol LG LimitedActive, Management of real estate on a fee or contract basis, London, United Kingdom
- Protocol LimitedActive, Douglas, United Kingdom
- Protocol Logistics Private LimitedActive, Maharashtra, since 1997
- Protocol LtdActive, Information technology consultancy activities, Surrey, United Kingdom
- Protocol Management (UK) LimitedActive, Other food services, Teignmouth, United Kingdom
- Protocol Management Solutions LimitedActive (proposal to strike off), Management consultancy activities other than financial management, St John'S Wood, Unit
- Protocol Marine Services Private LimitedActive, Maharashtra, since 2001
- Protocol Media LtdActive, Media representation services, Thames Ditton, United Kingdom
- Protocol Media Private LimitedActive, Punjab, since 2026
- Protocol Medic Care LimitedActive, Residential care activities for the elderly and disabled, Milton Keynes, United Kingdom
- Protocol Office LimitedActive, Manufacture of office and shop furniture, Slough, United Kingdom
- Protocol One IT Labs Private LimitedActive, Maharashtra, since 2009
- Protocol Online Private LimitedActive, Telangana, since 2014
- Protocol Plantation Pvt.ltd.Struck off, West Bengal, since 1995
- Protocol Policy Systems LtdActive, Information technology consultancy activities, London, United Kingdom
- Protocol Pool Operations Alpha LLCActive, Wilmington, United States
- Protocol Pool Operations LLCActive, Wilmington, United States
- Protocol Pro Solutions Private LimitedActive, Chandigarh, since 2025
- Protocol ProductionsFinland
- Protocol Properties LimitedActive, Other letting and operating of own or leased real estate, Oldham, United Kingdom
- Protocol Recruitments Private LimitedActive, Maharashtra, since 2016
- Protocol Reverse LimitedActive (proposal to strike off), Research and experimental development on biotechnology, Ipswich, United Kingdom
- Protocol Sales Private LimitedActive, Madhya Pradesh, since 2017
- Protocol Search & Selection LtdActive, Other activities of employment placement agencies, Wellington, United Kingdom
- Protocol Securities Pvt LtdActive, West Bengal, since 1995
- Protocol Security LimitedActive, Private security activities, Fleetwood, United Kingdom
- Protocol Shipping Services Private LimitedStruck off, Maharashtra, since 2011
- Protocol Software(india) P LtdStruck off, Maharashtra, since 1991
- Protocol Solutions LtdActive, Electrical installation, Melton Mowbray, United Kingdom
- Protocol Solutions Private LimitedActive, Delhi, since 2013
- Protocol Solutions Properties LtdActive, Buying and selling of own real estate, Leicester, United Kingdom
- Protocol Strategic Land LimitedActive (proposal to strike off), Other professional, scientific and technical activities n.e.c., Leigh On Sea, United Ki
- Protocol Tech Holdings LtdActive, Activities of other holding companies n.e.c., Glasgow, United Kingdom
- Protocol Technical Services Private LimitedActive, Delhi, since 2018
- Protocol Technologies LimitedStruck off, Telangana, since 2001
- Protocol Ten Digital Marcom Private LimitedActive, Karnataka, since 2013
- Protocol V LtdActive, Business and domestic software development, London, United Kingdom
- Protocol Valuers Private LimitedActive, Delhi, since 2006
- Protocol Ventures ABActive, Stockholm, Sweden
- Protocol Wireless and Media Private LimitedStruck off, Delhi, since 2007
- Protocol Zero Holdings LimitedActive, Information technology consultancy activities, London, United Kingdom
- Protocol35 Wellness Private LimitedActive, Karnataka, since 2026
- Protocol3d LtdActive, Other business support service activities n.e.c., Loughborough, United Kingdom
- Protocol75 LtdActive, Publishing of computer games, Skelmersdale, United Kingdom
- Protocolbureau B.V.Active, 'S-Gravenhage, Kingdom of the Netherlands
- Protocole Radical LtdActive, Information technology consultancy activities, Dukinfield, United Kingdom
- Protocole Technical Services LimitedActive (proposal to strike off), Translation and interpretation activities, Waterlooville, United Kingdom
- Protocolix Labs Private LimitedActive, Gujarat, since 2026
- Protocollato LtdActive, Other information service activities n.e.c., London, United Kingdom
- Protocolo Casiopea S.L.Active, Villaviciosa De Odón, Spain
- Protocolo Tours, Inc.Active, Coral Gables, United States
- Protocolroots Private LimitedActive, Maharashtra, since 2026
- Protocols and Tokens Private LimitedActive, Gujarat, since 2020
- Protocols Terapeutics SLPActive, Ontinyent, Spain
- Protocolsmax LimitedActive, Wholesale of machine tools, Nelson, United Kingdom
- Protocolx LtdActive, Other engineering activities, Whitehills Business Park, United Kingdom
- Protocolz Techcenter Private LimitedStruck off, Kerala, since 2008
- Protocolzone Private LimitedActive, Gujarat, since 2017
- Protocom LtdActive, Other building completion and finishing, Bolton, United Kingdom
- Protocom Properties LtdActive, Buying and selling of own real estate, Islington, United Kingdom
- Protocom Solutions Private LimitedStruck off, Tamil Nadu, since 1999
- Protocom Technology India Private LimitedStruck off, Karnataka, since 2008
- Protocon Engineering LimitedActive, Support activities for animal production (other than farm animal boarding and care) n.e.c., Essex, United Kingdo
- Protocon Ventures Pty LtdInactive, Sydney, Australia
- Protoconcept Engineering SàrlActive, Biel, Switzerland
- protoconsult s.r.o.Active, Tábor, Czech Republic
- Protocontrive Tech Private LimitedActive, Tamil Nadu, since 2018
- Protocontrol Instruments (India) P LtdActive, Maharashtra, since 1994
- Protocontrol Instruments (India) P LtdActive, Maharashtra, since 1994
- Protocontrol Microtech (India) Private L ImitedStruck off, Maharashtra, since 1996
- Protocool LimitedActive, Plumbing, heat and air-conditioning installation, Reading, United Kingdom
- Protocore UK LimitedActive, Other retail sale not in stores, stalls or markets, London, United Kingdom
- Protocorp Systems Private LimitedActive, Tamil Nadu, since 2018
- Protocraft India Private LimitedActive, Maharashtra, since 2024
- Protocroft LimitedActive, Buying and selling of own real estate, Leicester, United Kingdom
- Protocube (OPC) Private LimitedActive, Kerala, since 2021
- Protocus LtdActive, Business and domestic software development, Cirencester, United Kingdom
- Protocyon Technologies Private LimitedActive, Maharashtra, since 2018
- Protodale (Broyle 3) LimitedActive, Other letting and operating of own or leased real estate, Reigate, United Kingdom
- Protodale (Broyle Road) LimitedActive, Other letting and operating of own or leased real estate, Reigate, United Kingdom
- Protodesign Technologies Private LimitedActive, Gujarat, since 2026
- Protodesk LLPActive, Maharashtra
- Protodiag Solutions Private LimitedActive, Uttar Pradesh, since 2024
- Protodune Systems Private LimitedActive, Maharashtra, since 2019
- ProtoDyna Korlátolt Felelősségű TársaságActive, Zalaegerszeg, Hungary
- Protodyne Biosciences Private LimitedStruck off, Tamil Nadu, since 2006
- Protodyne Life Sciences Private LimitedStruck off, Tamil Nadu, since 2009
- Protoedge Solutions LimitedActive, specialised design activities, Penryn, United Kingdom
- Protoezy Designs Private LimitedActive, Karnataka, since 2019
- Protofab LtdActive, Engineering design activities for industrial process and production, Great Yarmouth, United Kingdom
- Protofact Infotechprotofact Infotech Services LLPActive, Maharashtra, since 2017
- Protofact LimitedActive (proposal to strike off), Information technology consultancy activities, Peterborough, United Kingdom
- Protofam SaInactive, Madrid, Spain
- Protofarms Innovation Private LimitedActive, Haryana, since 2026
- Protofast LimitedActive, Development of building projects, London, United Kingdom
- Protofeeds Dynamics (OPC) Private LimitedActive, Maharashtra, since 2026
- Protofield Industrial L.P.Active, Glasgow, United Kingdom
- Protofini B.V.Active, Rotterdam, Kingdom of the Netherlands
- Protofit LtdActive, Other sports activities, Barnet, United Kingdom
- Protoflash LtdActive, Business and domestic software development, London, United Kingdom
- Protoflex Metal Private LimitedActive, Gujarat, since 2025
- Protoflex Software India Private LimitedStruck off, Telangana, since 2012
- Protoflex Software LimitedActive, Business and domestic software development, London, United Kingdom
- Protoflight Engineering LtdLiquidation, Repair and maintenance of aircraft and spacecraft, Darlington, United Kingdom
- Protofoam LtdActive, Engineering design activities for industrial process and production, Southend-On-Sea, United Kingdom
- Protoforge LtdActive, Manufacture of other plastic products, Worthing, United Kingdom
- Protoforge Private LimitedActive, Andhra Pradesh, since 2026
- Protoform Industries LtdActive, Engineering design activities for industrial process and production, London, United Kingdom
- Protoform LtdActive, Other engineering activities, Solihull, United Kingdom
- Protoform Technologies Private LimitedActive, Kerala, since 2025
- Protoforma Nex3d Parametrix LLPActive, since 2026
- Protofusion 3D Private LimitedActive, Delhi, since 2025
- Protog Business Solutions PrivatelimitedActive, Telangana, since 2019
- Protog Industries Private LimitedActive, Telangana, since 2020
- Protogalaxy Software Solution Private LimitedStruck off, Karnataka, since 2009
- Protogem Technology Private LimitedActive, Karnataka, since 2017
- Protogen Consulting LtdActive, Engineering related scientific and technical consulting activities, Warwick, United Kingdom
- Protogen Solutions Private LimitedActive, Delhi, since 2025
- Protogene Advisors LLPActive, Maharashtra
- Protogene Consulting Private LimitedActive, Maharashtra, since 2018
- Protogenia Advisors Private LimitedActive, Maharashtra, since 2006
- Protogenia Consulting LtdActive, Other professional, scientific and technical activities n.e.c., Cambridge, United Kingdom
- Protogenia Recruitment LimitedActive, Other activities of employment placement agencies, Surbiton, United Kingdom
- Protogenic Foods Private LimitedStruck off, Delhi, since 1991
- Protogenic Healthy Foods Private LimitedActive, Chhattisgarh, since 2023
- Protogenist Info Systems Private LimitedStruck off, Odisha, since 2011
- Protoglobal Food Solutions Private LimitedActive, Uttar Pradesh, since 2024
- Protoglobe Systems Private LimitedActive, Maharashtra, since 2018
- Protogon Engineers Private LimitedActive, Andhra Pradesh, since 2018
- Protogon Research S.A.Active, Road Town, British Virgin Islands
- Protogonos LimitedActive, Buying and selling of own real estate, Nelson, United Kingdom
- Protograd LimitedActive, Information technology consultancy activities, Mildenhall, United Kingdom
- Protograin Private LimitedActive, Kerala, since 2026
- Protograph Studio Private LimitedActive, Delhi, since 2018
- Protogreen Holding LimitedActive, Activities of other holding companies n.e.c., Peterborough, United Kingdom
- Protogreen Retail Solutions Private LimitedActive, Delhi, since 2012
- Protogreen UK LimitedActive, Recovery of sorted materials, Belfast, United Kingdom
- Protogrow Corp LLPActive, Maharashtra, since 2024
- Protogrow Corp Private LimitedActive, Assam, since 2026
- Protogt LtdActive, Engineering related scientific and technical consulting activities, Sheffield, United Kingdom
- Protogy LimitedActive, Other professional, scientific and technical activities n.e.c., Dartford, United Kingdom
- Protogé CicActive, Ready-made interactive leisure and entertainment software development, Gateshead, United Kingdom
- Protohealth Technologies Private LimitedStruck off, Karnataka, since 2025
- Protoheim Private LimitedActive, Kerala, since 2023
- Protohike Solution Private LimitedActive, West Bengal, since 2017
- Protohire Services India Private LimitedActive, Odisha, since 2018
- Protohouse Finland OyActive, Salo, Finland
- Protohub LimitedActive, Manufacture of other plastic products, Nottingham, United Kingdom
- Protohubs System Solutions Private LimitedActive, Karnataka, since 2025
- Protohubs Technology LLPActive, Tamil Nadu
- Protoinsa Servicios Integrales SaActive, Leganés, Spain
- ProtoituresActive, Liège, Belgium
- Protoj Design and Development Private Li MitedStruck off, Karnataka, since 2012
- Protojar Wellness Private LimitedStruck off, Maharashtra, since 2019
- Protoje Visual LtdActive, Video production activities, London, United Kingdom
- Protojecte SLActive, Fornells De La Selva, Spain
- Protojet LtdActive, Business and domestic software development, London, United Kingdom
- Protokart E-Commerce Services Private LimitedActive, Karnataka, since 2015
- Protokil LimitedLiquidation, London, United Kingdom
- ProtoKinetix, Inc.Listed, United States
- Protoknit (India) Private LimitedActive, Punjab, since 2013
- Protokol LLPActive, Haryana, since 2026
- Protokol UK LtdActive, Other business support service activities n.e.c., Ashford, United Kingdom
- Protokoll Szerviz Kft.Active, Budapest, Hungary
- Protokols Nutrition LtdActive, Other retail sale of food in specialised stores, London, United Kingdom
- Protokon Gyártó, Fejlesztő ÉS Kereskedő Korlátolt Felelősségű TársaságActive, Kiskőrös, Hungary
- PROTOKORP FINANCE, svetovanje d.o.o.Active, Komenda, Slovenia
- Protokos LtdActive, Information technology consultancy activities, London, United Kingdom
- Protokos Publishers LimitedActive, Book publishing, London, United Kingdom
- Protokrit Private LimitedActive, Assam, since 2024
- Protokyne Research Private LimitedActive, Odisha, since 2025
- Protol Comar LimitedActive, Manufacture of other chemical products n.e.c., Widnes, United Kingdom
- Protol Holdings LimitedActive, Manufacture of other chemical products n.e.c., Widnes, United Kingdom
- Protol Powder Coatings LimitedActive, Manufacture of other chemical products n.e.c., Widnes, United Kingdom
- Protolab Electro Technologies Private LimitedActive, Maharashtra, since 1993
- Protolab Formulation Private LimitedActive, Uttar Pradesh, since 2016
- Protolab Societa' A Responsabilita' Limitata SemplificataActive, Fiesso D'Artico, Italy
- Protolabs India Private LimitedActive, Telangana, since 2026
- Protolan LimitedActive, Other engineering activities, Leicester, United Kingdom
- protoland GmbH & Co. KGInactive, Bielefeld, Germany
- Protolaunch LtdActive, Manufacture of air and spacecraft and related machinery, Cambridge, United Kingdom
- Protoldo S.A.Active, Leganés, Spain
- Protoleap Innovations LLPActive, since 2026
- Protoleaps Soft Solutions LLPActive, Kerala, since 2025
- Protoledo SLActive, Fuensalida, Spain
- Protolex Plastic Private LimitedActive, Maharashtra, since 2016
- Protolights Luminaires LLPActive, Maharashtra
- Protolights Private LimitedActive, Maharashtra, since 2021
- Protoline Apparels Private LimitedStruck off, Madhya Pradesh, since 2013
- Protolink Infotech Private LimitedActive, Gujarat, since 2012
- Protolink Solutions LtdActive, Management consultancy activities other than financial management, Winchester, United Kingdom
- Protolith LimitedActive, Other publishing activities, London, United Kingdom
- Protolive Software Private LimitedStruck off, Maharashtra, since 2012
- Protolix LimitedActive, Retail sale via mail order houses or via Internet, Manchester, United Kingdom
- Protoll LimitedLiquidation, Other manufacturing n.e.c., Sheffield, United Kingdom
- Protologic Controls LimitedActive, Business and domestic software development, Leicester, United Kingdom
- Protologic LimitedActive, Other information technology service activities, Sheffield, United Kingdom
- Protologic Solutions Private LimitedActive, Uttar Pradesh, since 2014
- Protologix Engineering Private LimitedActive, Telangana, since 2017
- Protolyst Technologies LtdActive, Business and domestic software development, Bristol, United Kingdom
- Protom Food Tech S.R.L.Inactive, Napoli, Italy
- Protom Group S.P.A.Active, Napoli, Italy
- Protom Invest AsActive, Oslo, Norway
- Protom Meghna LimitedActive, Investigation activities, Birmingham, United Kingdom
- Protom Trade PCActive, Cardiff, United Kingdom
- Protomac ConstructionActive, North 24 Parganas, India
- Protomac Extrusion Private LimitedActive, Haryana, since 2020
- Protomac Solution Private LimitedActive, Haryana, since 2025
- Protomach GML IncActive, Quebec, Canada
- Protomach Inc.Active, Quebec, Canada
- Protomag Traders Private LimitedStruck off, Delhi, since 1995
- Protomake Private LimitedActive, Tamil Nadu, since 2017
- Protomaker LimitedActive, Other research and experimental development on natural sciences and engineering, Swindon, United Kingdom
- Protomandi LLPActive, Maharashtra, since 2025
- Protomart Private LimitedActive, Kerala, since 2025
- Protomartyr
- Protomata LLPActive, since 2026
- Protomate AI Private LimitedActive, Madhya Pradesh, since 2024
- Protomate LtdActive, Web portals, London, United Kingdom
- Protomation Technologies Private LimitedActive, Haryana, since 2023
- Protomax Adhesives Private LimitedActive, West Bengal, since 1999
- Protomax Engineering Private LimitedActive, Karnataka, since 2023
- Protomax Infrastructure Private LimitedActive, Maharashtra, since 2010
- Protomax Plastics LimitedActive, Manufacture of plastic plates, sheets, tubes and profiles, Trowbridge, United Kingdom
- Protomax Private LimitedActive, Telangana, since 2026
- Protomed 3D India Private LimitedActive, Delhi, since 2025
- Protomed Healthcare Private LimitedActive, Dadra and Nagar Haveli and Daman and Diu, since 2019
- Protomed LimitedLiquidation, Other human health activities, Gosforth, United Kingdom
- Protomed Private LimitedStruck off, Bihar, since 1978
- Protomedia E-Knowledge Initiatives Priva Te LimitedStruck off, Maharashtra, since 2005
- Protomedia GmbHActive, Marburg, Germany
- Protomedicato del Río de la PlataDissolved, Argentina
- Protomic Foods Private LimitedActive, Maharashtra, since 2025
- Protomind AI Technologies LLPActive, Delhi, since 2026
- Protomind Consulting Services Private LimitedStruck off, Telangana, since 2010
- Protomind S.R.L.S.Active, Roma, Italy
- Protominds Software Solutions Private LimitedActive, Tamil Nadu, since 2011
- Protomix Ingatlanforgalmazó Zártkörűen Működő részvénytársaságActive, Budapest, Hungary
- Protomize Solutions Private LimitedStruck off, Karnataka, since 2015
- Protomolecule LtdActive, Information technology consultancy activities, London, United Kingdom
- Protomonastero Santa Chiara Di AssisiActive, Assisi, Italy
- Protomont Technologies LLPActive, Maharashtra
- Protomotive Technologies Private LimitedActive, Dadra and Nagar Haveli and Daman and Diu, since 2023
- Protomuse LtdActive, Other service activities n.e.c., Templecombe, United Kingdom
- Proton
- Protonelectronics industry, defence industry, telecommunications industry, Ukraine
- Proton (Southern) LimitedActive, Wholesale of other machinery and equipment, Sowerby Bridge, United Kingdom
- Proton (UK) LimitedActive, Other service activities n.e.c., London, United Kingdom
- Proton 6 LimitedActive (proposal to strike off), Other telecommunications activities, Birmingham, United Kingdom
- Proton 8 LimitedActive, Other information service activities n.e.c., Barnet, United Kingdom
- Proton Advisors Private LimitedActive, Delhi, since 2006
- Proton Advisory LimitedActive, Management consultancy activities other than financial management, Andover, United Kingdom
- Proton AGActive, software industry, Plan-Les-Ouates, Switzerland
- Proton Agri Solution Private LimitedActive, Rajasthan, since 2026
- Proton Aircraft LtdActive, Manufacture of air and spacecraft and related machinery, Rugeley, United Kingdom
- Proton Auto Parts Private LimitedStruck off, Tamil Nadu, since 1996
- Proton Auto Tech LLPActive, Maharashtra
- Proton Aviation Capital LtdActive, Service activities incidental to air transportation, London, United Kingdom
- Proton Bankfinancial services, Athens, Greece
- Proton Be LtdActive, Other engineering activities, London, United Kingdom
- Proton Beheer B.V.Active, Krommenie, Kingdom of the Netherlands
- Proton Biochem Private LimitedActive, Maharashtra, since 1994
- Proton Biolab LLPActive, since 2024
- Proton Biolabs Marketing Private LimitedActive, Gujarat, since 2024
- Proton Biologicals India Private LimitedActive, Karnataka, since 2012
- Proton Biotec Private LimitedStruck off, Tamil Nadu, since 2005
- Proton Biotech Nutrition Private LimitedActive, Maharashtra, since 2019
- Proton BPO Solutions Private LimitedStruck off, Telangana, since 2010
- Proton Builders Private LimitedActive, Chhattisgarh, since 2020
- Proton Building Systems Private LimitedStruck off, Tamil Nadu, since 2007
- Proton Bulls LtdActive, Other software publishing, London, United Kingdom
- Proton Burst
- Proton Business Agency LtdActive (proposal to strike off), Security and commodity contracts dealing activities, Stockport, United Kingdom
- Proton Business Ventures Private LimitedStruck off, Maharashtra, since 2007
- Proton Capital Advisory Private LimitedActive, Maharashtra, since 2018
- Proton Capital LtdActive, Activities of open-ended investment companies, Hook, United Kingdom
- Proton Capital Markets Ltd.Active, Kingstown, Saint Vincent and the Grenadines
- Proton Capital S.R.L.Active, Dumbrăviţa, Romania
- Proton Care LtdLiquidation, Other human health activities, Chorley, United Kingdom
- Proton Career Solutions Private LimitedActive, Madhya Pradesh, since 2011
- Proton Cars (UK) LimitedActive, Other letting and operating of own or leased real estate, Norwich, United Kingdom
- Proton Chit Funds Private LimitedStruck off, Karnataka, since 2013
- Proton Cinema Korlátolt Felelősségű TársaságActive, Budapest, Hungary
- Proton Classes (OPC) Private LimitedActive, Delhi, since 2015
- Proton Commosales Private LimitedActive, West Bengal, since 2009
- Proton Communications and Networks Private LimitedStruck off, Maharashtra, since 2006
- proton Computer Vertriebs GmbHActive, Bonn, Germany
- Proton Computers LimitedActive, Information technology consultancy activities, Wilmslow, United Kingdom
- Proton Concept LLPActive, Karnataka, since 2026
- Proton Construction LimitedStruck off, Maharashtra, since 2008
- Proton Construction LtdActive (proposal to strike off), Construction of domestic buildings, St. Leonards-On-Sea, United Kingdom
- Proton Consultancy LtdActive, Engineering related scientific and technical consulting activities, Glasgow, United Kingdom
- Proton Consultancy Private LimitedActive, Gujarat, since 2026
- Proton Consultancy Services Private LimitedActive, Maharashtra, since 1998
- Proton Consulting S.L.U.Active, Villanueva De La Cañada, Spain
- Proton Contractor LtdActive, Electrical installation, London, United Kingdom
- Proton Contracts LimitedActive, Construction of commercial buildings, London, United Kingdom
- Proton Corporate LimitedActive, Other professional, scientific and technical activities n.e.c., London, United Kingdom
- Proton Data GmbHActive, Flensburg, Germany
- Proton Data Info Private LimitedActive, Maharashtra, since 1995
- Proton Development L.P.Active, Glasgow, United Kingdom
- Proton Developments LimitedActive, Raising of horses and other equines, Wolverhampton, United Kingdom
- Proton Diagnostics LtdActive, Specialists medical practice activities, London, United Kingdom
- Proton Digital LimitedActive, Business and domestic software development, Redditch, United Kingdom
- Proton Drugs and Chemicals Pvt LtdActive, Maharashtra, since 1986
- Proton Drywall LtdLiquidation, Floor and wall covering, Maidstone, United Kingdom
- Proton Dynamics LLPActive, London, United Kingdom
- Proton Educational Services Private Limi TedStruck off, Chandigarh, since 2011
- Proton Electrical Contractors LimitedLiquidation, Electrical installation, Nottingham, United Kingdom
- Proton Electrical LtdActive, Electrical installation, Grays, United Kingdom
- Proton Electrical Services LimitedActive, Repair of electrical equipment, Grangemouth, United Kingdom
- Proton Electrical Solutions LimitedActive, Electrical installation, Liverpool, United Kingdom
- Proton Electrics LtdActive, Electrical installation, London, United Kingdom
- Proton Electronic
- Proton Electronics Private LimitedStruck off, Haryana, since 1988
- Proton Electrotech Systems Private LimitedActive, Karnataka, since 2009
- Proton Energie GmbHActive, Zweibrücken, Germany
- Proton Energy LimitedActive, Other engineering activities, Thame, United Kingdom
- Proton Energy Solutions LtdActive, Plumbing, heat and air-conditioning installation, Orpington, United Kingdom
- Proton Engineering CM LPActive, Edinburgh, United Kingdom
- Proton Engineering IncorporationActive, Jharsuguda, India
- Proton Engineering Ltd.Inactive, Aberdeen, United Kingdom
- Proton Engineering Services LtdActive, Plumbing, heat and air-conditioning installation, Market Harborough, United Kingdom
- Proton Engineering Services Private Limi TedStruck off, Kerala, since 2005
- Proton Engineering Solutions LLPActive, since 2026
- Proton Enterprises LtdActive, Information technology consultancy activities, London, United Kingdom
- Proton Enviro Solutions Private LimitedActive, Maharashtra, since 2012
- Proton Environmental Ltd.Active, Combined facilities support activities, Bexleyheath, United Kingdom
- Proton Evc LtdActive, Electrical installation, Manchester, United Kingdom
- Proton Expert Systems and Solutions Private LimitedActive, Karnataka, since 2010
- Proton Export S.L.Active, Montcada I Reixac, Spain
- Proton Fabricators Private LimitedActive, Delhi, since 2016
- Proton Facility Services Private LimitedAmalgamated, Delhi, since 2009
- Proton FCMalaysia
- Proton Finance LimitedActive, Financial intermediation not elsewhere classified, London, United Kingdom
- Proton Financial LimitedActive, Management consultancy activities other than financial management, Chislehurst, United Kingdom
- Proton Fintech Ventures Private LimitedActive, Maharashtra, since 2026
- Proton Fire UK LtdActive, Fire service activities, London, United Kingdom
- Proton Fitness Solutions Private LimitedStruck off, Karnataka, since 2011
- Proton Flux LtdActive, Wholesale of electronic and telecommunications equipment and parts, London, United Kingdom
- Proton Food Processing Private LimitedActive, Maharashtra, since 2020
- Proton Foods and Products Private LimitedActive, Uttar Pradesh, since 2024
- Proton for Transport Services LtdActive, Freight transport by road, Liverpool, United Kingdom
- Proton Forwarding LimitedActive, Freight transport by road, London, United Kingdom
- Proton FoundationActive, Management consultancy activities other than financial management, Hinckley, United Kingdom
- Proton FoundationPlan-les-Ouates, Switzerland
- Proton Fund SPCActive, George Town, Cayman Islands
- Proton Fusion LimitedActive, Book publishing, Oxford, United Kingdom
- Proton Gases (India) Private LimitedActive, Maharashtra, since 2004
- Proton Global Advisors LLPActive, since 2025
- Proton Granito Private LimitedActive, Gujarat, since 2014
- Proton Green Pulses Private LimitedStruck off, Telangana, since 2020
- Proton Health & Wellness Private LimitedActive, Maharashtra, since 2024
- Proton Health Care Private LimitedActive, Karnataka, since 2002
- Proton Health Care Private LimitedStruck off, Maharashtra, since 2002
- Proton Health LtdActive, Business and domestic software development, London, United Kingdom
- Proton Healthcare International LtdActive, Other human health activities, London, United Kingdom
- Proton Healthcare LtdActive, Temporary employment agency activities, Southampton, United Kingdom
- Proton Herbal Private LimitedStruck off, West Bengal, since 2011
- Proton Holdings LimitedLiquidation, Manufacture of other chemical products n.e.c., Manchester, United Kingdom
- Proton Holdings S.à r.l.Active, Luxembourg, Luxembourg
- Proton Hospitality Services Private LimitedStruck off, Maharashtra, since 2015
- Proton Hub LtdActive, Other letting and operating of own or leased real estate, Carluke, United Kingdom
- Proton Imaging LimitedActive, Dublin, Ireland
- Proton Impex Private LimitedActive, Delhi, since 2010
- Proton India Private LimitedActive, Delhi, since 1998
- Proton India Private LimitedActive, Delhi, India
- Proton Industries ABActive, Värnamo, Sweden
- Proton Infosolutions Private LimitedActive, Maharashtra, since 2004
- Proton Infosys Private LimitedActive, Madhya Pradesh, since 1999
- Proton Infotech Private LimitedStruck off, Gujarat, since 1996
- Proton Infra-Solutions LLPActive, since 2026
- Proton Infracon Private LimitedStruck off, Maharashtra, since 2004
- Proton Infraprojects Private LimitedStruck off, Maharashtra, since 2012
- Proton Infrastructure Private LimitedStruck off, Chandigarh, since 2009
- Proton Infratel Private LimitedActive, Delhi, since 2010
- Proton Instruments Private LimitedStruck off, Delhi, since 2006
- Proton Insurance Surveyors and Loss Assessors Private LimitedActive, Madhya Pradesh, since 2024
- Proton Integration International LimitedActive, Wholesale of computers, computer peripheral equipment and software, London, United Kingdom
- Proton Intellectual Property LimitedActive, Activities of patent and copyright agents; other legal activities n.e.c., Bristol, United Kingdom
- Proton International London LimitedActive, Other human health activities, London, United Kingdom
- Proton International UK LtdActive, Other human health activities, London, United Kingdom
- Proton Internet LLPActive, Uttar Pradesh, since 2018
- Proton investiční společnost, a.s.Active, financial sector, Praha 1, Czech Republic
- Proton Investments LLPActive, Telangana, since 2017
- Proton Investments Private LimitedConverted to LLP, Telangana, since 2000
- Proton Italia S.R.L.Active, Motta Sant'Anastasia, Italy
- Proton Laboratories Private LimitedStruck off, Maharashtra, since 1980
- Proton Ledger Technologies LLPActive, since 2025
- Proton Leszek GodekActive, Świątniki, Poland
- Proton Lifesciences Private LimitedActive, Maharashtra, since 2023
- Proton Lighting ABActive, Värnamo, Sweden
- Proton Logistics LLPActive, London, United Kingdom
- Proton Logistics Solutions Private Limit EdStruck off, Maharashtra, since 2007
- Proton Lorac 2 LtdActive, Construction of domestic buildings, Aylesbury, United Kingdom
- Proton Lorac Properties LimitedActive, Other letting and operating of own or leased real estate, Uxbridge, United Kingdom
- Proton Magnetic Energy Private LimitedStruck off, Maharashtra, since 2020
- Proton Maintenance LtdActive, Plumbing, heat and air-conditioning installation, Dover, United Kingdom
- Proton Management and Technical Services Private LimitedStruck off, Maharashtra, since 2014
- Proton Management Solutions and Consultancy Services Private LimitedStruck off, Karnataka, since 2009
- Proton Marine LimitedActive, Majuro, Marshall Islands
- Proton Marketing Services Private LimitedActive, Maharashtra, since 1998
- Proton Mechanical Engineering LimitedActive, Other business support service activities n.e.c., Plymouth, United Kingdom
- Proton Media LtdActive, Video production activities, London, United Kingdom
- Proton Media Private LimitedActive, Karnataka, since 2026
- Proton Medical LtdActive, Other professional, scientific and technical activities n.e.c., Bath, United Kingdom
- Proton Medical Services LimitedActive, Specialists medical practice activities, Glasgow, United Kingdom
- Proton Merchandise Private LimitedStruck off, Karnataka, since 2009
- Proton Metalcrafts Private LimitedActive, Maharashtra, since 2004
- Proton Midlands LtdActive, Buying and selling of own real estate, Birmingham, United Kingdom
- Proton Mindspace Wellness Private LimitedActive, Karnataka, since 2017
- PROTON MOTOR Fuel Cell GmbHActive, Puchheim, Germany
- Proton Motor Power Systems LtdActive, Activities of head offices, Maidstone, United Kingdom
- Proton Networks Private LimitedStruck off, Karnataka, since 2000
- Proton Neutron (OPC) Private LimitedActive, Maharashtra, since 2020
- Proton New Energy Future SLActive, Barbera Del Valles, Spain
- Proton Oryolelectronics industry, Oryol, Soviet Union
- Proton Packaging LimitedActive, Non-specialised wholesale trade, Kelvedon, United Kingdom
- Proton Paints LLPActive, since 2024
- Proton Paper IndustryActive, Morbi, India
- Proton Partners Global LtdActive, Information technology consultancy activities, London, United Kingdom
- Proton Partners International LimitedLiquidation, Other human health activities, London, United Kingdom
- Proton Partners London LimitedActive, Management consultancy activities other than financial management, Sevenoaks, United Kingdom
- Proton Partners LtdActive, Business and domestic software development, Barnet, United Kingdom
- Proton Payments LimitedActive, Information technology consultancy activities, Warrington, United Kingdom
- Proton People Solutions (OPC) Private LimitedActive, Karnataka, since 2023
- Proton Pharma Private LimitedActive, Chandigarh, since 2012
- Proton Pharmaceuticals Private LimitedStruck off, Rajasthan, since 2005
- Proton Plan Private LimitedStruck off, Maharashtra, since 2008
- Proton Plastics LLPActive, Delhi
- Proton PM LtdLiquidation, Construction of commercial buildings, Basildon, United Kingdom
- Proton Polyfill LLPActive, Gujarat
- Proton PolymerActive, Ahmedabad, India
- Proton Polymers Private LimitedActive, Maharashtra, since 1991
- Proton Popcorn LtdActive, Other software publishing, London, United Kingdom
- Proton Positive Healthcare India Private LimitedActive, Telangana, since 2010
- Proton Power Control Private LimitedActive, Maharashtra, since 2010
- Proton Power LimitedActive, Repair of machinery, Edinburgh, United Kingdom
- Proton Power Wash LtdActive, Other building and industrial cleaning activities, Glasgow, United Kingdom
- Proton Power, Inc.Active, Knoxville, United States
- Proton Process Technology LLPActive, since 2024
- Proton Products India Private LimitedActive, Haryana, since 2024
- Proton Products International LimitedActive, Other business support service activities n.e.c., Watford, United Kingdom
- Proton Projects LimitedActive, Other business support service activities n.e.c., Watford, United Kingdom
- Proton Projects Private LimitedActive, Telangana, since 2004
- Proton Properties LtdActive, Other letting and operating of own or leased real estate, Peterborough, United Kingdom
- Proton Properties Private LimitedActive, Telangana, since 2017
- Proton Properties Unstoppable LtdActive, Other holiday and other collective accommodation, London, United Kingdom
- Proton Property Hegerle & Porębska Spółka KomandytowaActive, Kraków, Poland
- Proton Property LtdActive, Other letting and operating of own or leased real estate, Glasgow, United Kingdom
- Proton Property Services LimitedActive (proposal to strike off), Other accommodation, Manchester, United Kingdom
- Proton Ready Mix Concrete Private LimitedActive, Maharashtra, since 2023
- Proton Real Estate Private LimitedActive, Delhi, since 2025
- Proton Remedies Private LimitedActive, Telangana, since 2008
- Proton Rentals LtdActive, Other letting and operating of own or leased real estate, Edinburgh, United Kingdom
- Proton RMC LLPActive, Gujarat
- Proton Road, LLCActive, Wilmington, United States
- Proton Scientific LtdActive, Retail sale via mail order houses or via Internet, Banbury, United Kingdom
- Proton Secure Services Private LimitedStruck off, Delhi, since 2014
- Proton Securities Private LimitedStruck off, Maharashtra, since 2000
- Proton Services LtdActive, Other professional, scientific and technical activities n.e.c., Warrington, United Kingdom
- Proton Softech LimitedStruck off, Maharashtra, since 2001
- Proton Solar Private LimitedActive, Uttar Pradesh, since 2012
- Proton Solutions LimitedStruck off, Karnataka, since 1999
- Proton Solutions LtdActive, Wholesale of computers, computer peripheral equipment and software, London, United Kingdom
- Proton Sports Management LtdActive, Other sports activities, Edinburgh, United Kingdom
- Proton Sprint Technology LtdActive, Wholesale of electronic and telecommunications equipment and parts, Greenford, United Kingdom
- Proton SRLActive, Galați, Romania
- Proton Steels LimitedActive, West Bengal, since 1984
- Proton Stocks Private LimitedStruck off, Maharashtra, since 2004
- Proton Storm Private LimitedStruck off, Karnataka, since 2013
- Proton Sujok Accupressure & Holistic Healing (OPC) Private LimitedActive, Telangana, since 2023
- Proton SuppliesActive, Kelvedon, United Kingdom
- Proton Surgical Hospital Private LimitedActive, Gujarat, since 2025
- Proton Sustainability Consultants LLPActive, since 2024
- Proton Systems LimitedActive, Other information technology service activities, Medbourne, United Kingdom
- Proton Tech Electrical LtdActive, Electrical installation, Birmingham, United Kingdom
- Proton Technical Solutions LtdLiquidation, Electrical installation, Basildon, United Kingdom
- Proton Technocrat Private LimitedStruck off, Bihar, since 2007
- Proton TechnologiesMumbai
- Proton Technologies LimitedStruck off, Maharashtra, since 1999
- Proton Technologies LtdActive, Other information technology service activities, London, United Kingdom
- Proton Technology LimitedActive, Information technology consultancy activities, Weymouth, United Kingdom
- Proton Technosoft (OPC) Private LimitedActive, Karnataka, since 2020