Cinder is a trust and safety platform that deploys AI agents to help companies detect and respond to digital abuse, fraud, and manipulation[2]. Founded in 2022[8], the company is headquartered in New York City[7] and was backed by Y Combinator's Winter 2022 batch[4]. The platform provides content moderation and data labeling for AI applications[1], offering infrastructure to protect companies from AI abuse[5]. According to Y Combinator's company directory, Cinder empowers businesses to orchestrate and automate digital safety at scale, with end-to-end capabilities to mitigate harm, investigate abuse, and produce trustworthy AI outcomes[6]. The company operates with a team of 30 employees[9] and actively recruits candidates based in New York City or willing to relocate there for in-person work[6].
Funding
- Series B, $41MMay 13, 2026
with Radical Ventures, Accel, Y Combinator, M12, PSP Growth, Neuberger’s Outpost Ventures, Outpost Ventures
About
- From content moderation to AI safety, Cinder empowers businesses to orchestrate and automate digital safety at scale. Cinder was founded to help organizations foster safe online spaces for everyone. Our platform empowers companies from start-ups to enterprises with end-to-end capabilities to mitigate harm, investigate abuse, and produce trustworthy and reliable AI outcomes. Building your world-class company means keeping your users and community safe—Cinder unlocks faster growth by making safety easy. We work with customers in every industry from frontier AI labs to e-commerce and social media. We're hiring across a variety of teams and looking for candidates based in NYC or open to relocating to NYC, and able to work in-person.[6]
Backers
Accel
Global venture capital firm that positions itself as a first partner to exceptional startup teams worldwide.
M12
Microsoft venture capital fund investing from seed through Series B across AI applications, security, cloud infrastructure and deep tech, with 140+ portfolio companies.
- FNeuberger’s Outpost Ventures
- FOutpost Ventures
PSP Growth
Chicago-based venture arm of PSP Partners investing $1-5 million initially (up to $25 million in follow-ons) in earlier-stage, high-growth B2B software companies.
Radical Ventures
AI-focused venture firm investing in people using artificial intelligence to shape how we live, work and play
Y Combinator
Accelerator and early-stage investor with an expanded growth-stage presence in New York
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