COMPANY PROFILE · UPDATED 23 AUG 2026

Cinder

Cinder is the industry’s first Trust and Safety operations platform to help organizations combat Internet abuse at scale. They provide Trust and Safety teams with a single system to manage complex integrity operations and investigations to…

New York, NY

cinder.ai ↗

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Founded: 2021
Headcount: 15
Open roles: 10
Last raised: Series B

TECH STACK

How Cinder builds

LEADERSHIP

Founders & key people

Philip Brennan

Founder at Cinder

US GovernmentOSDSeeds of PeaceMeta PlatformsCinderColumbia UniversityMiddlebury CollegeSOAS University of LondonKeyCorp

Brian Fishman

Founder at Cinder

CinderNew AmericaMeta PlatformsThe Master Plan: ISIS, al Qaeda, and the Jihadi Strategy for Final VictoryPalantir TechnologiesSchool of International and Public Affairs Columbia UniversityColumbia UniversityUCLA

Glen Wise

CEO at Cinder

CinderAlter's Stickball TournamentMeta PlatformsUS GovernmentCarnegie Mellon UniversitySalt Creek GrilleCarnegie Mellon UniversityRumson-Fair Haven Regional Highschool

Thatcher Bouck

Nikki Lee

Eric Norman

Jim Reich

OPEN ROLES

Hiring at Cinder

View all 10 open roles →

FUNDING

Capital raised

Total raised

$55,376,000

Investors

Y Combinator Accel AngelList M12 Matt Kraning Mischief Outpost Ventures PSP Growth Pioneer Fund Radical Ventures

Funding rounds

Series B
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Radical Ventures, PSP Growth, Y Combinator, M12, Accel, Outpost Ventures
$41MMay 12, 2026
Series A
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Accel, Y Combinator, Outpost Ventures, Matt Kraning
$10MDec 7, 2022
Seed
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Accel, Y Combinator, Mischief, Pioneer Fund
$4MMar 28, 2022
Equity Crowdfunding
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AngelList
$376KJun 18, 2015