StartupSeattle, WA · Seed
SageOx
The hivemind for human–agent teams: shared team memory that gives coding agents team context.
SageOx builds team memory for human and AI work, describing itself as "the hivemind for human–agent teams". Its tools give coding agents the context a team has built up. The Seattle company raised a $15M seed round led by Canaan in May 2026.
People
Co-founder & CEO
Harness engineering
Co-founder & Chief Product Officer
Harness engineering
Co-founder
Harness engineering
Neighbours in the directory
Berkeley, CA · Est. 2024
Stateful agents with memory, from the team behind MemGPT.
Letta (formerly MemGPT, out of UC Berkeley) builds an agent server with built-in memory, context management and state — letting agents persist, learn and be edited like files rather than living in a chat window.
$10M seed led by Felicis (2024)
San Francisco, CA · Est. 2024
The memory layer for AI apps and agents.
Mem0 (from the EmbedChain team) provides a managed + open-source memory layer that extracts, stores and retrieves user and entity memories across sessions — a standard building block for personalization.
San Francisco, CA · Est. 2023
Long-term memory for agents, built on temporal knowledge graphs.
Zep maintains durable, time-aware agent memory via its open-source Graphiti engine — facts, relationships and their history — so conversations and tasks can span sessions.
Sources
Verified Oct 29, 2026
