Cinder
Cinder is a cybersecurity company specializing in AI Security, founded in 2021 and headquartered in New York, United States. It has raised $55M in equity across 4 priced rounds, employs about 54 people, and is privately held.
updated Oct 11, 2026
Cinder Momentum score
68/ 100
Mandos Momentum blends hiring, funding, traffic and sentiment into one score out of 100. The score is free; the pillars behind it unlock in the platform.
Cinder products
Cinder Open-Weight Model Safety
Cinder Custom + Expert Services
Cinder PlatformSystem of record for trust and safety operations, combining policy, casework
Cinder funding
Cinder has raised $55M in priced equity. Its most recent round was a Series B in May 2026. It has 4 funding rounds on record: Seed, Series A, Venture Round, and Series B. 12 investors are on record, including Accel and M12 - Microsoft's Venture Fund.
- Equity raised
- $55M4 priced rounds
- Last round
- Series BMay 2026
Cinder employees and hiring
As of September 2026, Cinder has about 54 employees, up 4% over the last 30 days, with 7 open roles.
- Employees
- 54
- 30-day change
- +4%
- Open roles
- 7
Cinder competitors
Competitors of Cinder include PENEMUE, Guardrails AI, and SnowCrash Labs. 120 more are in the platform, with overlap scoring.
matched by product category and features
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The other 440 data points.
- Funding historyevery round, every investor named
- Headcount growthvelocity, departments, seniority
- Open jobs7 live postings, role mix
- Tech stackframeworks, clouds, security
