JF Development | Official #418568944

10

members (measured 22 Oct 2026, 16:45 UTC)

15 June 2026

created (per Roblox API)

11 August 2026

first measured by this register

Game studiosENgame developmentasset creationstudio

Description

JF Development is a Roblox development studio focused on creating high-quality assets, systems, maps, and custom solutions for communities and developers. We aim to build immersive and reliable experiences that look great, perform smoothly, and enhance gameplay. Whether it's a detailed map, a realistic system, or a fully custom project, we take pride in delivering polished work with careful attention to detail. At JF Development, our goal is simple: to help bring ideas to life through professional, dependable, and innovative Roblox development.

Written by the group; not a statement by this register.

Membership history

Growth

3 measurements spanning 72 days, net +3. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 7–10 and does not start at zero.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
21 Oct 2026, 19:34	10	+2
13 Sept 2026, 04:39	8	+1
11 Aug 2026, 01:26	7	first reading

Ownership

Owned by James (@J_fergy2011) as measured.

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

Experiences

0

players in this group’s experiences right now

50

lifetime visits across 1 experiences

Product Hub: JF Development0 playing now

Experiences this group owns, by lifetime visits. Live-player counts are from our last measurement.

Members we’ve seen

James (@J_fergy2011) — CEO | Chief Executive Officer (rank 255)

@crissylad — C | Customer (rank 1)

Ethan (@ethans_roblox10) — C | Customer (rank 1)

Noah (@noah2914211) — C | Customer (rank 1)

IVYOLIVIA (@Rainbowpandaivy111) — C | Customer (rank 1)

Jack (@laveybeg2222) — C | Customer (rank 1)

Belle (@xoxo_belleholland) — C | Customer (rank 1)

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

Rank structure

CEO | Chief Executive Officer1

Chief Operations Officer0

CDO | Chief Development Office0

CD | Company Developer0

CSO | Chief Support Officer0

SS | Support Staff0

LC | Loyal Customer0

C | Customer8

SM | Staff Member0

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.

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CPS | Clifton Primary School#36009877 · 6 shared members

Ronalds#33883891 · 5 shared members

Newleaf Primary School#33615275 · 5 shared members

Police Roleplay Community#4328109 · 4 shared members

Hygiene#4234871 · 4 shared members

The Oak & Ivy#392370097 · 4 shared members

easyPOS#32675391 · 4 shared members

jaDevelopment#14665139 · 4 shared members

Blox Foods | LTD#34682347 · 4 shared members

South Pacific Airways™#3909938 · 3 shared members

McRonald's Restaurants Ltd.#34174120 · 3 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.