Company
Guardsmark Silver
Guardsmark is a company, founded in 1963.
security service
- Founded
- 1963
Common questions
- What does Guardsmark do?
- Guardsmark: security service.
- When was Guardsmark founded?
- Guardsmark was founded in 1963.
- Is Guardsmark still operating?
- Yes, Guardsmark is operating.
People
SilverOn Data Galactica
One person lists this organisation. Matching an employer can be wrong.
- H. Stuart Knightformer
Journey
- 1963FoundedWikidata
Reviews and reputation
Employee and customer reviews are on the roadmap.
Registration and identifiers
Identifiers
- Wikidata
- Q5614142
- Data Galactica id
- DGC-1RPXNB4YQYM8
What we have, and what we might have wrong
This page is assembled from the sources below. Each section carries its own grade. Silver 2 sections
- Wikidata, as of 3 Oct 2026. Community-curated knowledge base (CC0)
Last rebuilt 3 Oct 2026. We may be wrong: names get matched to the wrong record, people change jobs, companies change status. What gets seen and reported gets fixed. How grades work.