All startups in San Francisco Bay Area

Maitai

Redwood City

Maitai is an enterprise AI company that manages the LLM stack for enterprises, aiming for the fastest, most reliable inference. It is trusted by YC startups and public companies to manage their models and agents for real-time use.

Reacher

San Francisco

Reacher is a San Francisco-based B2B software and services company that automates creator marketing for the world’s largest brands, positioning itself as the AI Brand Manager for ecommerce scaling through the creator economy.

Soff

San Francisco

Soff is an AI-powered supply chain hub that integrates with email and ERP systems to automate procurement workflows, leveraging years of supply chain data to save manufacturers time and money.

Unsloth AI

San Francisco

Unsloth AI, a San Francisco–based company, makes custom AI accessible by fixing critical LLM bugs (Gemma, Llama, Phi-4) and conducting open-source RL and fine-tuning; YC S24-backed with investors such as Logan Kilpatrick and Jon Oringer, us

Saphira AI

San Francisco

Saphira AI builds tools for safety and compliance teams in hardware companies to accelerate and streamline processes, serving startups to industry leaders in semiconductors, aerospace, and robotics, delivering faster, cheaper safety and com

Roame

San Francisco

Roame is a flight search engine that uses credit card points and miles to find redemptions, positioning itself as Google Flights for points; it serves 1 million travelers and is backed by Y Combinator, Goodwater Capital, and Accel’s Starter

A0.dev

San Francisco

a0.dev is a platform generating custom React Native projects to help mobile developers build apps in days, not weeks. It has launched apps used by hundreds of thousands of users and relies on React Native, TypeScript, Node.js, Express, Next

Idler

San Francisco

Idler builds reinforcement learning coding environments that train AI to code like elite engineers using real-world scenarios. It closed a multimillion-dollar contract with a leading foundation lab and is scaling to power the training data

Attunement

San Francisco

Attunement, a YC W24 company, builds compliance infrastructure that connects clinical data pipelines, model outputs, and audit systems to make AI-assisted behavioral care traceable, explainable, and auditable. Clinics cut audit prep time by

Flair Labs

Palo Alto

Flair Labs builds the Flair Agent platform for real estate and lending, enabling teams to deploy autonomous agents that execute complex workflows, synthesize real-time data from diverse sources, and improve decision making.

Photonium

San Francisco

Photonium is building a next-generation design automation platform for optical systems, using AI to automate layout generation, optimization, simulation, tolerancing, and sourcing, marketed as an optics-focused alternative to Cadence or Syn

Emdash

San Francisco

Emdash is an open-source agentic development environment that runs multiple AI coding agents — Claude Code, Codex, Cursor, Gemini, and more — in parallel, each isolated in its own Git worktree, with built-in diff review and PR creation.

Stream

San Francisco

Stream Platforms, Ltd is a B Corporation delivering fair financial services and modernizing insurance, whose Stream platform serves three million people through 2,000 brands across UK, Europe and the US, backed by YC and investors as a fina

Oso Semiconductor

Mountain View

Oso Semiconductor is a developer of power-efficient, chipsets for next generation wireless communication and sensing applications.

Plaud

San Francisco

Plaud, a Delaware-incorporated, San Francisco–based company, is building the world’s most trusted AI work companion to boost productivity via note-taking. Operating since 2023 with 1+ million users, it combines hardware and software and maintains SOC 2, HIPAA, GDPR, EN18031 compliance.

Pace AI

Palo Alto

Pace AI builds an AI-powered English language acquisition and training platform, with a five-person Palo Alto team drawing on experience from Microsoft Research, Stanford, Cornell, MIT, and the Paul Allen Institute, to unlock economic oppor

Complete

San Francisco

Complete provides compensation for fast-growth startups, serving elite tech teams such as Render, Linear, Vercel, and DataStax. Revenue has grown threefold this year, momentum as the company is at an inflection point and plans significant t

Truva

San Francisco

**About** Sell more. Grind less with AI agents. Truva handles the busywork intelligently saving your sales team hours each week, so they can focus on what matters most - building and closing deals. **TL;DR** Truva is a Sales AI agents pl

Simplify

San Francisco

Simplify builds AI-enabled hiring infrastructure to democratize the job search, offering an AI-powered talent agent to help users plan, manage, and achieve career goals, backed by Craft and Y Combinator, with 1M job seekers applying to 100M

Coperniq

San Francisco

**Coperniq Workflow software for solar & energy contractors ☀️😎** Coperniq is workflow software for solar & energy contractors. It cuts soft cost per installation by $3K (17% of total cost) & accelerates project completion by 45 days (30%

Zen

San Francisco

Zen develops posture-awareness software that nudges users to correct slouching, aiming to free people from physical and mental pain. With 30,000+ users and $3.5M in funding from investors including Y Combinator and Valor Equity Partners, it

Remotebase

San Mateo

Remotebase hires, trains, and places local software engineers.

HOAi

San Francisco

HOAi is a fast-growing community association management platform acquired by Vantaca in 2024; backed by Cove Hill Partners and JMI Private Equity, it achieved seven-figure ARR growth and now serves over 6 million doors, as Vantaca reached a

Stepwork

San Francisco

It offers a pay-for-SaaS model based on usage in the SaaS cost optimization market, helping organizations reduce waste and cut monthly SaaS bills by up to 30% by analyzing usage, contracts, and spend data—a data-driven, usage-based approach

Infisical

San Francisco

Infisical is the #1 open-source secret management platform for developers, aiming to make security easier. Based in San Francisco with a remote team, it has raised $3M from Y Combinator and serves customers such as Hugging Face and Delivery

Manara

San Francisco

Manara is a remote social impact startup building the MENA tech talent community to unlock human potential and diversify the global tech sector, including Palestine and women, backed by major investors with clusters in Berlin, Palestine, an

Bright Machines

San Francisco

Bright Machines is a next-generation, AI-enabled manufacturer focused on data center infrastructure assembly operations. Bright Machines uses its proprietary AI-based robotics and software to assemble AI infrastructure hardware products (i.e., data center servers) for hyperscalers and leading Original Equipment Manufacturers (OEMs). With its new AI factory, Bright Machines addresses increasing market demands for computing power due to the surge of AI and the U.S. national mandate to reshore manufacturing by building data center infrastructure at scale with higher quality and shorter time-to-market.

Agave

San Francisco

Agave is an early-stage company modernizing the construction industry. With a 10-year founding team from Graphiq/Amazon, it has raised $3M from YC, Accel, and industry leaders, serves 200+ paying customers, is cash-flow positive, and target

BillionToOne

Menlo Park

BillionToOne is a molecular diagnostics company focused on prenatal and oncology testing, backed by Y Combinator and $200M+ funding. It developed a DNA counter that raises cell-free DNA resolution, enabling single-gene disorder detection fr

Velt

San Francisco

Velt SDK provides JavaScript toolkit to add collaboration features to apps. Founded by former Google engineers who built AR for Search and Maps, it is YC-backed and aims to ship collaboration experiences and boost growth across creative, an

DELFI Diagnostics

Palo Alto

Delfi Diagnostics detects cancer early, when it is most curable, using high precision non-invasive blood tests.

Vanta

San Francisco

Vanta is a leading automated compliance and trust management platform that centralizes security workflows for organizations of all sizes. A Y Combinator W18 alum, it has raised $350M, employs 700+ people, and has guided 10,000+ customers th

Fundamental Research Labs

Menlo Park

A small, elite AI-focused company shipping consumer products powered by cutting-edge AI research, with a team of ex-founders and researchers from top AI labs, building infrastructure for research and product development, pursuing pioneering

EvenUp

San Francisco

EvenUp Law is a proactive AI platform for personal injury law firms that automates routine workflows and client communications, handling admin tasks to allow legal teams to focus on strategy and client relationships, boosting efficiency and

Plura (formerly Bloom Community)

Oakland

Plura, formerly Bloom Community and Together, is a Y Combinator–backed Oakland startup that uses software to bring people together; its founders—Lauren Vegter, Aubrey Tull, and Dan Rhodes—bring tech backgrounds, and the company supports rem

Metriport

San Francisco

Metriport is an open-source platform that enables healthcare organizations to access and exchange medical data for patients, promoting collaboration, interoperability, and efficient data sharing to improve the flow of medical information.

Corelight

San Francisco

Corelight transforms network data into definitive evidence, powering AI-driven detection and expert-authored workflows, and enabling the AI SOC ecosystem. Delivered by our open NDR platform, Corelight’s comprehensive, correlated evidence gives you unparalleled visibility into your network. This evidence allows you to unlock new analytics, investigate faster, hunt like an expert, and even disrupt future attacks. Our on-prem and cloud sensors go anywhere to capture structured, industry-standard telemetry and insights that work with the tools and processes you already use. Corelight’s global customers include Fortune 500 companies, major government agencies, and research universities. Get started >> https://www.corelight.com/contact

Aspire

San Francisco

Aspire is a leading fintech delivering an all-in-one financial operating system for growing APAC businesses; it has raised over USD 300 million, partnered with Visa and Wise, serves 50,000+ clients (15,000+ in APAC), and has won multiple fi

Aviator

San Francisco

Aviator builds engineering productivity supertools that automate mundane developer workflows. YC-backed, well-funded startup counts Doordash, Square, Benchling, Figma, Bosch, and Slack among customers, with investors Elad Gil and Lenny Rach

Kyverna Therapeutics

Emeryville

Harnessing the power of cell therapy in autoimmune disease.