Market landscapes / AI Safety, Security & Governance / AI Runtime Security & Guardrails
Cinder
Trust and safety operations for platforms. Cinder gives companies the tools to find and act on abuse, fraud and manipulation, increasingly using AI to do it.
AI Runtime Security & Guardrails51-200 peoplecinder.ai ↗
Updated 12 October 2026
Hiring now
From Cinder's own jobs board, checked every week.
Where the roles are
Against its sector
Cinder has the third most open roles in AI Runtime Security & Guardrails, after Zenity and Dynamo. 10 of the 40 active companies in this sub-sector are advertising roles.
Funding
Cinder announced a $41 million Series B in May 2026, led by Radical Ventures.
Source: Cinder's announcement
Who Cinder competes with
The other active companies we file under AI Runtime Security & Guardrails, sorted by how much they are hiring.
Where this fits
Guardrails that run at the moment a model is being used: blocking prompt injection, stopping data leaving, and enforcing policy on what a model may say and do. Runtime security keeps becoming part of a bigger security product rather than staying a purchase of its own.
We track hiring and team changes across all 186 companies in AI Safety, Security & Governance.
Our talent report for this sector shows how Cinder's team compares with its competitors.
What is in it:
- Every company's team size, side by side, grouped by sub-sector
- Who grew their team over the last year, and by how much
- Who is losing people: attrition for each company, against the sector average
- Who is hiring right now, and how many open roles each has
I am Ben Jackson. I map this market, and I hire the commercial teams inside it: sales, marketing, product and delivery.
If you are building a team at a company like Cinder, want to work at one, or think Cinder is filed in the wrong place, put 20 minutes in my diary.
Book 20 minutes with Ben →