Greenbrook Engineering
bd_3c61c69a2f203652 · schema v1 · pii pii-v2
Full breach record for Greenbrook Engineering →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Thegentlemen on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.
Source: Ransomware.live
Post text · scraped from the leak site
greenbrookengineering.com zoominfo.com/c/greenbrook-engineering/346757767 Greenbrook Engineering Services is a private, MBE-certified steel detailing and engineering firm founded in 2000, headquartered in Middlesex, New Jersey, with 5 offices in India (Bengaluru, Chennai, Nashik, Mysuru). It employs 350–756 people (mostly offshore in India) and generates estimated group revenue of $20–30M/year, with the India entity alone growing +22% YoY (₹25.3 crore FY2025). Over 25 years it has completed 3,000+ projects (Hollywood Burbank Airport, semiconductor fabs, Fiat Chrysler, military bases) with capacity of 50,000+ engineering hours per month. Core services: steel detailing, PE-stamped connection design, BIM coordination, and HVAC using Tekla/SDS2. It is the only steel detailing firm in the world with Great Place to Work certification and won Trimble's "Feature Company of the Month" (2025) and the NISD Detailing Edge Award (2026). Led by Chairman Mukul Mehta (Wharton PhD) and MD Vasan H.R.K.
J jump to incidentP pin to compareR raw source
Incident timeline — mostly unverified
? — ?
Breach window unknown
Oct 6, 2026
Claim posted
—
No filing yet · watching
Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.
Claim → filing
—
Compliance clock
Not assessable
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.
No regulatory filing corroborates this yet — it is the attacker's own assertion. Watch this entity to be notified the moment a filing corroborates or contradicts it.
Source ceiling
- actor name
- victim claim
- ransom/leak status
- discovery date
- materiality
- notification
- affected count
- confirmed data types
- compliance clock
The ✕ fields stay blank until a regulatory filing or victim disclosure lands.
thegentlemen
According to ransomware.live, The Gentlemen is a RaaS group that emerged in July–August 2025, rapidly claiming over 320 victims across 17+ countries by offering affiliates a 90% revenue share, deploying a Go-based locker against Windows, Linux, NAS, and BSD systems; a compromised C2 server in 2026 revealed more than 1,570 linked victims.