MemTensor

Ultra-low-latency general-purpose diffusion-based large language model (Celeris-1), offered via an OpenAI-compatible API

Helps AI models remember users and conversations

Undisclosed · $10M · 2024-09

Stores and reuses user memory to personalize AI interactions

Series A · $24M · 2025-10

Multimodal long-term memory infrastructure (Memory-as-Infrastructure) for AI agents and embodied AI, delivered via an ADK agent development kit and APIs

Seed · $7M · 2026-07

Long-term memory infrastructure for large models (intrinsic memory module + Agentic RL)

Seed · 2026-08

General-purpose large model and multimodal AI company developing the Step series of language, speech and multimodal/GUI models

Pre-IPO · $3.3B · 2026-05

Computer-use AI agent platform for large European enterprises. Its core Holo model series can operate existing software interfaces directly to automate business processes; the company also offers an Agents API, a Models API and the Chrome extension HoloTab.

Seed · $220M · 2024-05

Open-source memory engine for AI agents: knowledge graph plus vector retrieval for persistent cross-session long-term memory, an ECL pipeline connecting 38+ data sources including Slack, GitHub and Linear, plus a hosted version and MCP server; customers include agent developers and organizations such as Bayer, the University of Wyoming and Knowunity.

$8M

Enterprise memory layer and workflow orchestration platform that turns expert operational knowledge into resources callable by AI agents

Seed · $20M · 2026-03

Trains and open-sources efficient reasoning LLMs (Swift series), and provides custom AI solutions and AI training for enterprises

Infrastructure that lowers LLM inference costs for enterprises

Seed · $11M · 2025-11

Platform company that builds general-purpose and vertical large models for enterprises

Undisclosed · $1.8B · 2025-09 · Valuation $5.5B