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Safe makers in United States
Standard in force: UL 687 and UL 1037. Certifying bodies: UL.
A different scale entirely: minutes of net working time, plus RSC for residential products.
Where the grades come from
Every grade below is read from a certifying body's own public register: the ECB·S product locator,
which lists each certified model with its grade, and the VdS register, which also publishes the
certificate number. The figure is the company's highest grade for a free-standing safe —
most of a range sits lower, so the plate inside the door of the safe in front of you is what counts.
“Unverified” means we have not found the company in a register we can read — a statement about our
search, not about the product. Registers checked 14 Oct 2026.
| Maker | Founded | Highest safe grade | On the register | Status |
|---|---|---|---|---|
| AMSEC (American Security) behind a firewall — could not be checked automatically | not confirmed | — | UL's certification directory needs an account; not searched yet | unverified |
| Fort Knox www.ftknox.com Its 1996 site is in our archive research | not confirmed | — | UL's certification directory needs an account; not searched yet | unverified |
| Gardall Safe Corporation www.gardall.com Its 1996 site is in our archive research | 1950 | — | UL's certification directory needs an account; not searched yet | unverified |
| Graffunder Safes behind a bot challenge — could not be checked automatically | not confirmed | — | UL's certification directory needs an account; not searched yet | unverified |
| Liberty Safe libertysafe.com Publishes a notarised combination recovery procedure | not confirmed | — | UL's certification directory needs an account; not searched yet | unverified |
| Sargent & Greenleaf sargentandgreenleaf.com Locks, not safes; publishes operating manuals as open PDFs | not confirmed | locks, not safes | ECB·S: high-security locks, EN 1300 class B VdS: 21 lock certificates, up to class 2 | on register |
| Sturdy Safe www.sturdysafe.com Its 1998 site shaped our questions page | not confirmed | — | UL's certification directory needs an account; not searched yet | unverified |
Grades are EN 1143-1. CD — also tested against core drilling; EX — against explosives; T2 — with the extended tool set introduced in 2019, explained here. VdS writes grade 0 as “N”; it is shown here as 0. Sites were reachable on the date recorded in our register. “Not confirmed” under Founded means exactly that: the year is repeated all over the trade press, and we have not yet seen a source worth citing.