Mem0
Memory layer for AI agents
AI
📍 San Francisco, California
Founded 2024
Current Valuation
Private
as of 2025-Q4
PRIVATE
Mem0 is an open-source memory layer for AI applications that solves the statelessness problem of LLMs by efficiently storing, retrieving, and learning from user interactions across sessions. Founded by Taranjeet Singh and Deshraj Yadav in January 2024 and based in San Francisco, the YC-backed startup raised $24M across seed and Series A in October 2025, with the Series A led by Basis Set Ventures and the seed led by Kindred Ventures, both alongside Y Combinator and Peak XV Partners.
Company Profile
HQ
San Francisco, California
Growth
$24M total funding; open-source momentum among AI agent builders
Last Round
Series A — $20M (Oct 2025) · Lead: Basis Set Ventures
Founders & Key People
Taranjeet SinghDeshraj Yadav
Investors
Basis Set Ventures · Y Combinator · Peak XV Partners · Kindred Ventures
Products
- Mem0 open-source memory layer
- Mem0 hosted memory API
- Mem0 Platform for AI agents
Competitors
Zep · LangChain Memory · Pinecone · Letta (formerly MemGPT) · Weaviate
AI infrastructureAI agent memoryOpen sourceVector memoryStateful LLMsYC company
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2025-Q4. Refreshed quarterly.