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Checkstep

London, GB · 12 known investors

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Checkstep provides an AI content moderation platform that combines automated detection, customizable safety workflows, triage, and reporting into a trust and safety system for online platforms and communities. It emphasizes compliance, auditability, human-in-the-loop oversight, and real-time LLM prompts with code-free workflows.

Founders & leadership

GBGuillaume Bouchard
Guillaume BouchardCo-Founder and CEO of CheckstepHe previously co-founded and led Bloomsbury AI, which was acquired by Facebook in 2018, and spent over a decade in research roles at Xerox Research and UCL focused on machine learning and text understanding, supported by a PhD in applied mathematics and machine learning from INRIA.

Investors · 12

ChainFund CapitalreportedSilicon Valley

How we know: a partner's Signal profile · Not right? Tell us

Funding

SEC filings, press & company announcements

Source: company announcements and press reports — follow each round's link for the claim.

Companies House · registry record

View on Companies House ↗
Registered name
CHECKSTEP LIMITED
Company number
12583264
Status
Active
Company type
Private limited company
Incorporated
4 May 2020
Registered office
16-18 Black Friars Lane 3rd Floor, Black Friars Lane, London, EC4V 6EB
Nature of business (SIC)
62012 — Business and domestic software development
Accounts
last made up to 31 Dec 2025 · next due 30 Sept 2027
Confirmation statement
last made up to 3 May 2026 · next due 17 May 2027

Current officers · 2

  • Guillaume Bouchard — director, appointed 1 Sept 2020
  • Rui Pedro Da Costa Escaleira — director, appointed 1 Jun 2025

Source: Companies House public register · retrieved 30 Aug 2026. Contains public sector information licensed under the Open Government Licence v3.0.

In the news

Frequently asked questions

What does Checkstep do?
Checkstep provides an AI content moderation platform that combines automated detection, customizable safety workflows, triage, and reporting into a trust and safety system for online platforms and communities. It emphasizes compliance, auditability, human-in-the-loop oversight, and real-time LLM prompts with code-free workflows.
Who founded Checkstep?
Checkstep was founded by Guillaume Bouchard.
Who are Checkstep's investors?
Checkstep's investors include Form Ventures, Creative Destruction Lab (CDL), Data Tech, Look AI Ventures, Redbus Ventures, Cambridge Angels group, ChainFund Capital, Dawn Capital and 4 more.
Where is Checkstep headquartered?
Checkstep is headquartered in London, GB.