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Startups, scaleups and selected public or acquired companies with local product-building teams. San Francisco city proper, with Silicon Valley and South Bay teams covered separately. Curated by Cosign and listed alphabetically.
AI research and Claude models for coding and knowledge work, with safety at the core.
Claude Code and Cowork push from answering questions toward doing work, with growing company demand forcing a major compute buildout.
Cosign Simple remote browsers for AI agents.
A working browser agent opens ordinary websites to automation, including tasks with no convenient API.
Cosign Build, optimize, and scale AI agents that treat every customer like the only one.
Chime, Hertz and Faire use its agents to answer customers, testing whether support can grow without endless queues.
Cosign Collaborative AI agents for work.
Shopify and Instacart adoption brings shared agents to routine work, making automation something teams can shape themselves.
Cosign Modular hardware and software for robot learning
Two hundred-plus robots shipped across sixty countries mean more researchers can test learning ideas on real machines.
Cosign Give your agents access to the whole web.
Ramp uses it to process receipts, showing browser automation can take over work that otherwise needs someone clicking through sites.
Cosign Persistent computers for AI agents
Persistent computers let agents pick up unfinished work, opening the door to tasks longer than a single chat session.
Cosign Legal AI for high-stakes work, used by 3,500+ customers in 85+ countries.
Twenty-five thousand custom agents let law firms encode their own methods, taking legal AI beyond generic answers.
Cosign Dedicated satellite networks for the world's toughest connections.
Five satellites are already in orbit, putting dedicated connectivity within reach of customers poorly served by existing networks.
Cosign Computer-aided design for molecules.
Bristol Myers Squibb signed on in August, putting AI molecule design against a drugmaker’s real discovery problems.
Cosign A shared canvas where teams and AI agents turn ideas into products, from WIP to ship.
New agent tools push Figma toward turning shared ideas into working products, shrinking the distance between design and execution.
Cosign Hourly staffing matched to the work, the worker, and the shift.
Its Robotics Lab turns a worker network toward training and maintaining machines, creating a role for people around automation.
Cosign Train and serve AI models on one stack, with engineers who help you reach production.
Descript, Writer and Patreon run AI here, letting product teams ship models without running all the machinery themselves.
Cosign Devin plans, writes, tests, and ships code so engineers work more like architects.
NVIDIA, Citi and GE Aerospace are adopting Devin, testing how much engineering work agents can carry from task to code.
Cosign Web data APIs that help AI agents search, read and interact with the live web.
Zapier, Shopify and Replit use its web tools, giving agents access to information beyond their training data.
Cosign Open frameworks and an engineering platform to build, improve, and own AI agents.
Fifteen billion agent traces give developers evidence of failures, making improvement less dependent on guessing what happened.
Cosign Simulate, test and monitor voice and chat AI agents
Millions of calls checked monthly help catch voice-agent failures before businesses entrust more customer conversations to them.
Cosign AI coding agents for building, reviewing, and shipping software.
Millions already use Cursor. The bigger shift is from writing every line to directing software-building agents.
Cosign AI code review and runtime testing grounded in your codebase.
Billions of code lines reviewed monthly put another check between rapidly generated software and the people relying on it.
Cosign Turn complex documents into reliable context and workflows for AI agents.
Rakuten and Salesforce are customers. The next bet is turning buried company documents into knowledge agents can actually use.
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