What they do:
On-device AI that knows your entire life and does your work overnight.
Quick facts:
HQ: San Francisco, CA, United States
Top Productivity Startups in California
This list has 298 startups and was last updated on Oct 15, 2026. 65 of them are hiring right now. Biggest hubs: San Francisco (283) and Los Angeles (8). Largest teams: Dropbox, Zapier, and Pair Team. Latest round: Brief Productivity Solutions raised $3.53M (Apr 29, 2026).
298 startupsPage 6 of 9
What they do:
Automate on-call at agent-scale.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
The AI desktop.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Turn any website into an MCP for your agents, in minutes
Quick facts:
HQ: San Francisco, CA, United States
What they do:
FollowUpThen is an email-based personal assistant that sends you…
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Specialized agents for real work
Quick facts:
HQ: Los Angeles, CA, United States
What they do:
The AI Secretary for Email and Calendar.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
ChatGPT's memory feature in an open, portable format
Quick facts:
HQ: San Francisco, CA, United States
What they do:
A robotics intelligence system for metal fabrication
Quick facts:
HQ: San Francisco, CA, United States
What they do:
The control plane for agent-native work.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Reimagining how Machines Learn
Quick facts:
HQ: San Francisco, CA, United States
YC W25Early stage
What they do:
AI Document Workflows for Enterprises
Quick facts:
HQ: San Francisco, CA, United States
YC W26Early stage
What they do:
AI-native back-office for banks and fintechs
Quick facts:
HQ: San Francisco, CA, United States
YC S26Early stage
What they do:
Engineering Intelligence and Token Optimization for the AI-Coding Era
Quick facts:
HQ: San Francisco, CA, United States
YC S26Early stage
What they do:
AI-native insurance department for auto body shops
Quick facts:
HQ: San Francisco, CA, United States
YC W27Early stage
What they do:
AI teammates for your business-critical work.
Quick facts:
HQ: San Francisco, CA, United States
YC S26Early stage
What they do:
AI-native Accounting Firm that's killing Deloitte
Quick facts:
HQ: San Francisco, CA, United States
YC S26Early stage
HelloSign
Acquired
What they do:
eSignature software for small and mid-market businesses.
Quick facts:
HQ: San Francisco, CA, United States
Quick facts:
HQ: Los Altos, CA, United States
Incorporated: 2026
Funding:
$3.53M · Equity · Apr 2026
Quick facts:
HQ: San Francisco, CA, United States
YC W11Early stage
garten
Acquired
What they do:
Creating workplace wellbeing.
Quick facts:
HQ: San Francisco, CA, United States
Fathom
Acquired
What they do:
The most flexible AI meeting notetaker ever built.
Quick facts:
HQ: San Francisco, CA, United States
StackAI
Acquired
What they do:
The Enterprise AI Transformation Platform
Quick facts:
HQ: San Francisco, CA, United States
SafeBase
Acquired
What they do:
Trust Center platform that scales customer security reviews
Quick facts:
HQ: San Francisco, CA, United States
Warmly,
Acquired
What they do:
[Acquired by HubSpot in 2026] Autonomous sales platform to auto-email…
Quick facts:
HQ: San Francisco, CA, United States
SendHub
Acquired
What they do:
Simple Business SMS. SMBs to Large Enterprise.
Quick facts:
HQ: San Francisco, CA, United States
Pebble
Acquired
What they do:
Watch that helps you get shit done and limit the mayhem of…
Quick facts:
HQ: San Francisco, CA, United States
Eden
Acquired
What they do:
Workplace software for people-centric companies.
Quick facts:
HQ: San Francisco, CA, United States
AeroFS
Acquired
What they do:
Secure Enterprise Collaboration.
Quick facts:
HQ: San Francisco, CA, United States
Guilded
Acquired
What they do:
Chat for gaming communities
Quick facts:
HQ: San Francisco, CA, United States
Plato
Acquired
What they do:
Plato is the mentorship platform for engineering leaders
Quick facts:
HQ: San Francisco, CA, United States
SketchDeck
Acquired
What they do:
Operating system for creative agencies
Quick facts:
HQ: San Francisco, CA, United States
Clara Labs
Acquired
What they do:
Clara is a human-in-the-loop assistant that helps automate repetitive…
Quick facts:
HQ: San Francisco, CA, United States
Onyx
Acquired
What they do:
Open Source AI Chat
Quick facts:
HQ: San Francisco, CA, United States
ZumoDrive
Acquired
What they do:
Media in the cloud
Quick facts:
HQ: San Francisco, CA, United States
Chute
Acquired
What they do:
Discover the photos and videos people are taking of your brand or…
Quick facts:
HQ: San Francisco, CA, United States