Unsloth AI
Hiring
What they do:
Open-Source Reinforcement Learning (RL) & Fine-tuning for LLMs.
Quick facts:
HQ: San Francisco, CA, United States
Top Infrastructure Startups
This list has 417 startups and was last updated on Oct 15, 2026. 111 of them are hiring right now. Biggest hubs: San Francisco (271), New York (38), and London (10). Largest teams: Fivetran, Firebase, and Heroku. Latest round: Supabase raised $150M (Oct 2, 2026).
417 startupsPage 3 of 12
Sixtyfour
Hiring
What they do:
Intelligence Infrastructure on People and Entities
Quick facts:
HQ: San Francisco, CA, United States
Etleap
Hiring
What they do:
Etleap is an ETL solution for creating perfect data pipelines.
Quick facts:
HQ: San Francisco, CA, United States
Wasmer
Hiring
What they do:
The Operating System for Edge Computing
Quick facts:
HQ: San Francisco, CA, United States
PrimeVault
Hiring
What they do:
Infrastructure powering stablecoin and digital finance
Quick facts:
What they do:
Enterprise-Grade OpenTelemetry
Quick facts:
HQ: Boston, MA, United States
Skyvern
Hiring
What they do:
Open Source AI Agent to automate browser workflows via an API
Quick facts:
HQ: San Francisco, CA, United States
ParadeDB
Hiring
What they do:
You should just use Postgres.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Infrastructure for identity and fraud.
Quick facts:
HQ: San Francisco, CA, United States
Coris
Hiring
What they do:
AI risk and ops platform for Payment Processors, Banks, SaaS…
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Managing your Employees' Access to SaaS
Quick facts:
Reflex
Hiring
What they do:
The operating system for building mission-critical enterprise apps.
Quick facts:
HQ: San Francisco, CA, United States
Zep AI
Hiring
What they do:
The unified context layer for enterprise data
Quick facts:
HQ: San Francisco, CA, United States
Mem0
Hiring
What they do:
The Memory layer for AI Agents
Quick facts:
HQ: San Francisco, CA, United States
Thunder Compute
Hiring
What they do:
GPUs for Agents
Quick facts:
HQ: San Francisco, CA, United States
CTGT
Hiring
What they do:
The deterministic layer for frontier intelligence
Quick facts:
HQ: San Francisco, CA, United States
AgentMail
Hiring
What they do:
Email Inboxes for AI Agents
Quick facts:
HQ: San Francisco, CA, United States
ROE
Hiring
What they do:
AI for risk and compliance
Quick facts:
HQ: San Francisco, CA, United States
Naïve
Hiring
What they do:
Autonomous Company Infrastructure
Quick facts:
HQ: San Francisco, CA, United States
Dedalus Labs
Hiring
What they do:
Persistent computers for AI agents
Quick facts:
HQ: San Francisco, CA, United States
Hyperspell
Hiring
What they do:
Your Company Brain
Quick facts:
HQ: San Francisco, CA, United States
Piris Labs
Hiring
What they do:
The Networking Layer of AI
Quick facts:
HQ: San Francisco, CA, United States
Minicor
Hiring
What they do:
Scalable windows desktop automations
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Network monitoring from the end-user perspective
Quick facts:
HQ: Pittsburgh, PA, United States
Windmill
Hiring
What they do:
Open-source platform to turn scripts into internal apps & workflows
Quick facts:
What they do:
Open data platform for traceable, multimodal AI
Quick facts:
SID
Hiring
What they do:
AI research center for retrieval
Quick facts:
HQ: San Francisco, CA, United States
What they do:
The integration layer for live events infrastructure
Quick facts:
HQ: New York, NY, United States
Airweave
Hiring
What they do:
The open-source context retrieval layer for agents
Quick facts:
HQ: San Francisco, CA, United States
Luminal
Hiring
What they do:
Making AI run fast on any hardware.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Turning everyday words and actions into usable training data.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Open-source, self-hosted, session replay tool for developers.
Quick facts:
HQ: New York, NY, United States
What they do:
Global Card Issuing and Payment Processing Engine
Quick facts:
Converge
Hiring
What they do:
All-in-one marketing measurement for B2C
Quick facts:
HQ: New York, NY, United States
What they do:
The high-performance file system that connects AI to data
Quick facts:
HQ: San Francisco, CA, United States
Osmosis
Hiring
What they do:
Reinforcement Learning (RL) for AI Agents
Quick facts:
HQ: San Francisco, CA, United States