Cinder Raises $41M Series B

Cinder, a New York, NY-based AI-native infrastructure platform that helps companies defend against digital abuse, fraud, and manipulation, has raised $41 million in Series B funding.

Investors

This funding round was led by Radical Ventures, a venture firm focused on early-stage AI startups. Additional investors participating in the round include Accel, M12 (Microsoft's Venture Fund), PSP Growth, Neuberger’s Outpost Ventures, Y Combinator, and others.

Cinder Use of Funds

Cinder plans to use the fresh capital to double its employee headcount over the next 12 months as it expands its mission-critical infrastructure to protect more platforms from AI-powered threats.

About Cinder

Founded in 2022 by Glen Wise, Cinder is a trust and safety infrastructure company that helps digital platforms detect, investigate, and prevent online abuse, fraud, manipulation, and harmful content. The company's AI-powered platform automates content moderation, policy enforcement, fraud detection, and safety operations for organizations operating in the AI era. Headquartered in New York, Cinder serves clients including OpenAI, Spotify, Depop, and Black Forest Labs.

Funding Details

Company Website: https://cinder.ai

Company: Cinder
Raised: $41M
Round: Series B
Funding Date: May 12, 2026
Lead Investor: Radical Ventures
Additional Investors: Accel, Y Combinator, M12, Microsoft's Venture Fund, PSP Growth, Neuberger’s Outpost Ventures
Company Website: https://cinder.ai
Software Category: Trust and Safety / Cybersecurity
Source: https://cinder.ai/resources/blog/cinder-raises-41m-series-b-ai-abuse