Graphon Labs raises $35M Series A from RRE Ventures to give AI agents long-term memory

Graphon Labs raised a $35 million Series A on November 10 led by RRE Ventures, with HP, Energy Impact Partners, Hitachi Ventures, and Gaia VC participating — bringing total funding to $43.3 million six months after an $8.3 million seed. The 20-person San Francisco startup, founded on co-founders Arbaaz Khan and Clark Zhang's PhD work on graphons for robot memory, builds graph-based persistent memory for AI agents and reports 93.9% on LoCoMo and 81.7% on ATM-Bench. Early customers include HP, Hitachi, and the San Francisco 49ers.