Outerlimit
Outerlimit provides a security and authorization layer for agentic AI systems.
- Categories
- AI and LLM security, Identity and access management, Identity threat detection and response, Secrets management
- Based in
- London, United Kingdom
- Ownership
- Private
- Certifications
- Cyber Essentials, Cyber Essentials Plus, SOC 2 Type I
About Outerlimit
Outerlimit provides a security platform for agentic AI. It sells to enterprises that need to control and observe AI agents. The platform offers a single control and observability plane across an agentic ecosystem. It helps organisations discover agents and tools, observe their behaviour, enforce guardrails at tool execution, and optimise policies with AI. The company extends Zero Trust to the point where an agent acts. It binds identity, authorisation, and action into one operation when a tool runs. Its enforcement is deterministic and applied at the tool execution layer, not at the prompt or reasoning layer. The architecture is distributed and uses cryptographic enforcement. It runs in-tenant or on-premise, with zero standing access and no usable credential resting with an agent or intermediary. Outerlimit also offers an MCP Gateway for observability and enforcement on MCP. The platform is available on AWS and Microsoft Azure marketplaces. The company partners with value-added resellers, systems integrators, and technology vendors.
Products
- DiscoverProvides an inventory of agents and models, with risk scoring and remediation planning.
- ObserveCaptures every tool invocation and agent action in real time for monitoring and audit.
- EnforceApplies run-time guardrails at the tool execution layer using a decentralised authorisation network.
- OptimizeUses AI to refine policies based on enforcement data and detect blind spots.
- MCP GatewayOffers observability and enforcement on MCP.
Ownership and deals
- Raised $16m in a pre-seed roundInvestor AlbionVCReport on the Outerlimit funding round of September 2026 (opens in a new tab)
Acquisitions come from SecurityWeek's monthly M&A round-ups from 2021 onwards, from Cybersecurity Ventures' quarterly M&A reports for 2020, and a few from Wikipedia lists. Funding rounds from 2022 onwards come from Return on Security's weekly Security, Funded newsletter. These are dated to the month. A few deals added from the news are dated to the day. Smaller deals may be missing. Amounts are in US dollars.