[1ᴍᴅ] 1ꜱᴛ ᴍᴀʀɪɴᴇ ᴅɪᴠɪꜱɪᴏɴ #555518751

members (measured 22 Oct 2026, 13:38 UTC)

28 July 2025

created (per Roblox API)

12 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 We do not publish numbers we have not measured.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
12 Aug 2026, 13:55	4	first reading

Ownership

Owned by MattC (@coyne1985) 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

MattC (@coyne1985) — [GH] Group Holder (rank 255)

@kingcody1221 — Headquarters, Marine Corps (rank 20)

@R3TAKE43 — [0/5] Fox Company (rank 1)

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

Rank structure

[GH] Group Holder1

[O10] Commandant of the Marine Corps1

[O10] Assistant Commandant of the Marine Corps0

Headquarters, Marine Corps1

[MEF] Commanding General0

[CO] Commanding Officer0

[XO] Executive Officer0

[BXO] Battalion Executive Officer0

[BSM] Battalion Sergeant Major0

[CCO] Company Commanding Officer0

[CFS] Company First Sergeant0

[CEO] Company Executive Officer0

[CI] Combat Instructor0

[PL] Platoon Sergeant0

[0/5] Hotel Company0

[0/5] Alpha Company0

[0/5] Charlie Company0

[2/5] Echo Company0

Member4

[0/5] Fox Company1

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.

[TECOM] Tʀᴀɪɴɪɴɢ Aɴᴅ Eᴅᴜᴄᴀᴛɪᴏɴ Cᴏᴍᴍᴀɴd#92976548 · 3 shared members

Valley Prison#33269521 · 2 shared members

461,386

The United States Marine Corpsᅠᅠᅠ#5655676 · 2 shared members

378,589

Chesapeake Studios#17005184 · 2 shared members

147,419

Clayton Juvenile Detention Center#13761679 · 2 shared members

118,768

Eastbrook Secondary Schoоl#10707455 · 2 shared members

62,369

/ Vicko Studios#5267631 · 2 shared members

31,138

World Wide Studios Ltd#379755956 · 2 shared members

1,110

ᴜɴɪᴛᴇᴅ ꜱᴛᴀᴛᴇꜱ ᴍᴀʀɪɴᴇ ᴄᴏʀᴘꜱ#781758944 · 2 shared members

[ᴍᴄᴍᴘ] ᴍᴀʀɪɴᴇ ᴄᴏʀᴘꜱ ᴍɪʟɪᴛᴀʀʏ ᴘᴏʟɪᴄᴇ#612454351 · 2 shared members

[ᴍᴄᴇꜰ] ᴍᴀʀɪɴᴇ ᴇxᴘᴇᴅɪᴛɪᴏɴᴀʀʏ ꜰᴏʀᴄᴇ#197258390 · 2 shared members

[ᴍᴄꜰʀ] ᴍᴀʀɪɴᴇ ᴄᴏʀᴘꜱ ꜰᴏʀᴄᴇ ʀᴇᴄᴏɴɴᴀɪꜱꜱᴀɴᴄᴇ#724771811 · 2 shared members

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.