Graphon Labs said on Tuesday that it raised $35 million in a Series A round led by RRE, with participation from HP and Energy Impact Partners, to build a memory layer for enterprise AI agents.
The round comes about six months after the San Francisco startup announced an $8.3 million seed on May 14, when it still operated as Graphon AI. In its Business Wire announcement, the company said total capital raised now stands at $43.3 million.
A crowded corner of AI infrastructure
Memory for AI agents, the software that lets an agent retain and recall information across sessions instead of starting from scratch each time, is filling up with competitors. A May 31, 2026 research preprint on memory interoperability named Mem0, Letta/MemGPT, Cognee, Zep/Graphiti, MemoryOS and MemTensor as frameworks with differing SDKs, storage layouts and operational terminology. The paper described a fragmented category rather than ranking players by market share.
What Graphon says it built
The company pitches what it calls persistent intelligence for AI agents. Its seed announcement billed Graphon AI as the first "pre-model intelligence layer," and the headline of that release said the company was founded by former Amazon and Meta scientists. Graphon's website names the University of Pennsylvania's GRASP Lab as its research origin.
Graphon said its results on the LoCoMo and ConvoMem benchmarks compare favorably with baselines published by Databricks. Those are vendor-reported figures, and no independent reproduction was available. The announcement also gave no general-availability date for every product, so it is unclear how much of the technology customers can use today.
On its About page, the company lists SOC 2 Type II certification, a common security attestation that enterprise buyers often require, and links to a Vanta trust center. The underlying audit report was not reviewed.
Company details
Graphon lists a July 2025 founding date. It had 20 employees, Business Insider reported on Nov. 10. Database listings vary: Caplight shows 13 in one field and 16 in a Sept. 17 signal. Business Insider's Shubhangi Goel published the company's fundraising pitch deck the same day. Wilson Sonsini confirmed it advised Graphon Labs on the Series A.
