Gravitee Raises $60m Series C for agentic API and event management
Gravitee, the leading Agentic API and Event Management company, announced it has raised $60 million in Series C funding. The round was led by Sixth Street Growth, the growth investing business of leading global investment firm Sixth Street, with participation from existing investors including us at AlbionVC and Riverside Acceleration Capital.
Gravitee has now raised over $125 million in funding since its inception – fuelling its mission to shape the future of APIs, event streams and agentic AI.
The big-picture problem Gravitee solves is the growing complexity and fragmentation of modern digital systems. APIs, event streams and now agentic AI all power mission-critical workflows — but they each come with their own tools, protocols and security challenges. The historically siloed approach creates blind spots, increases risk and slows down innovation. Gravitee unifies governance across APIs, real-time events, and AI agents in a single platform, helping companies future-proof their architecture, regain control and hold nothing back as they scale.
Legacy API management vendors offer traditional approaches that weren’t designed for real-time, multi-cloud or agentic environments. They fail to provide unified control or deep governance across event-driven and traditional systems, leaving gaps that compromise scalability and security. Gravitee’s Agentic API and Event Management platform, however, combines traditional API gateway functionality with powerful, event-native and AI-integrated governance capabilities. It was designed to orchestrate, secure and observe all traffic – synchronous or asynchronous – across legacy and emerging digital environments.
“Modern companies are integrating AI agents, streaming data, APIs and hybrid systems faster than ever, but legacy tools can’t keep up,” said Rory Blundell, CEO of Gravitee. “As a result, many companies face major risks around security, observability and control of their API and event infrastructure, which isn’t built for this new, dynamic world. Gravitee has established itself as the leader in Agentic API and Event Management. The new funding will allow us to accelerate further, enhance our products and expand into new markets.”
“We are excited to support Gravitee’s mission to help companies innovate and grow with unified, secure API management,” said Bo Stanley, Partner at Sixth Street and Co-Head of Sixth Street Growth.
“Gravitee is redefining the standard for modern API management platforms, integrating governance and controls for event streaming and AI agents,” said Michael Bauer, Managing Director at Sixth Street Growth. “Gravitee is well positioned to meet the complex demands of tomorrow’s digital infrastructure with its unique combination of end-to-end functionality, ease of use and pace of innovation.”
Gravitee was founded in 2015 and serves hundreds of global brands, including BlueYonder, Michelin, Roche, Tide, Verint and Xylem. Gartner recently recognized Gravitee as a leader in its Magic Quadrant for API management, and Tech Nations included Gravitee in its 2025 list of Future Fifty companies.
Gravitee is reshaping the way enterprises manage APIs and event streaming. From our first meeting with Rory and his team back in 2020, their technical depth, pace of innovation, and customer-centric execution made clear they were building a global category leader. Today, Gravitee supports hundreds of international brands, and we are pleased to continue backing the company as it sets new industry standards to enable customers to hold nothing back!.”
Paul Lehair, Partner AlbionVC
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