![[UK] SIA - Security Industry Authority](https://tr.rbxcdn.com/180DAY-ad2f3c564a1dc7b345cf4591e0461932/150/150/Image/Png/noFilter)
[UK] SIA - Security Industry Authority #10884951
Membership history
Growth
Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.
| Measured (UTC) | Members | Change |
|---|---|---|
| 11 Aug 2026, 05:18 | 2 | first reading |
Daily: the last measured count of each UTC day. Days with no new reading have no point. The full per-reading record is in the CSV and JSON downloads below.
Ownership
Owned by Algernon (@AlgernonSantiago) as measured.
Abandoned 1 time
Owner first observed: user #447860441 — observed between sweeps, detected 22 Sept 2026, 00:33 UTC
Owner (user #1470832045) left; group became ownerless — observed between sweeps, detected 31 Aug 2026, 16:21 UTC
Detection dates bound when a change was seen by this register, not when it happened.
Groups seen changing owner — the largest ever handed over and the most recent — are on the ownership transfers board.
Members we’ve seen
ItsPhoenixDev (@iiPhoenix_Builds) — Chief Executive Officer (rank 255)
Algernon (@AlgernonSantiago) — Chief Operations Officer (rank 254)
A sample — only members this register has independently measured, highest rank first. Not the full roster.
Rank structure
Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).
Open data
Download this group’s measured record — free to reuse with attribution: membership history (CSV) · full record (JSON)
Each file carries its licence and retrieval time inside it, and is generated from the same measurements shown above.