United States MC [MARSOC] #9139149

members (measured 12 Oct 2026, 22:34 UTC)

13 January 2021

created (per Roblox API)

10 August 2026

first measured by this register

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 We do not publish numbers we have not measured.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
31 Aug 2026, 19:21	1	first reading

Ownership

Owned by YZY (@Jeffy4848) as measured.

Groups seen changing owner — the largest ever handed over and the most recent — are on the ownership transfers board.

Members we’ve seen

YZY (@Jeffy4848) — [CMC] Commandant of the Marine Corps (rank 255)

A sample — only members this register has independently measured, highest rank first. Not the full roster.

Rank structure

[CMC] Commandant of the Marine Corps0

[ACMC] Assistant Commandant of the Marine Corps0

[HQ] Head Quaters0

[CG] Commanding General0

[DCG] Deputy Commanding General0

[SM] Sergeant Major0

[MD] Marine Raider Director0

[CO] Commanding Officer0

[XO] Executive Officer0

[DSM] Divisional Sergeant Major0

[BCO] Battalion Commanding Officer0

[BXO] Battalion Executive Officer0

[SB] Saber Team Black0

[1RB] 1st Raider Battalion0

[2RB] 2nd Raider Battalion0

[3RB] 3rd Raider Battalion0

Member1

Guest0

Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).

Related groups

Groups whose measured members overlap with this one — a sample from our membership graph.

Chillz Studios#2782840 · 1 shared members

18,621,138

Roblox#7 · 1 shared members

13,508,511

Wild Atelier#7947655 · 1 shared members

8,727,505

Car Crushers Community#2726951 · 1 shared members

8,647,373

KizmoTek Studio#3115970 · 1 shared members

7,542,184

Frosted Studio#3385385 · 1 shared members

4,017,668

InfinityInteractive#11257245 · 1 shared members

3,217,503

Police Roleplay Community#4328109 · 1 shared members

2,228,035

Greenville, Wisconsin#3078161 · 1 shared members

1,957,126

Nova Digital Games#526536480 · 1 shared members

1,752,708

Skilled Studio LLC#787581 · 1 shared members

881,403

Strigid#6464780 · 1 shared members

763,482

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.