SaaS startups in San Francisco Bay Area

April

San Francisco

April is an AI Executive Assistant for email and calendar that is voice-first and productivity-obsessed, backed by Y Combinator; it launched in August and has shown traction as it grows, aiming to give every busy professional the assistant

Planbase

San Francisco

Planbase is a flexible AI-powered platform that embeds intelligence into operations, tailoring to each workflow to boost speed and accuracy; it serves healthcare organizations touching 100M+ patients, including $500M+ revenue leaders, with

Meridian

San Francisco

The company catalyzes the next generation of consumer experiences by redefining how people interact with products and services, driving innovation in everyday engagement and shaping how brands are experienced in modern markets.

Augrade

San Francisco

Augrade Inc is an AI research lab building an agentic platform to automate construction workflows across design, estimation, and vendor management, aiming to create an AI architect and engineer that can realize projects for users regardless

Ohm

San Francisco

Ohm is a San Francisco-based AI-first company applying AI to battery research, validation, and manufacturing workflows. Backed by Y Combinator and other investors, it leverages a lean, multidisciplinary team of engineers, creatives, and PhD

Kalos

San Francisco

Kalos is an early-stage, high-growth startup in San Francisco, currently in stealth mode, that has built Blue, an AI agent.

Domu Technology Inc. (YC S24)

San Francisco

Domu Technology Inc. automates debt-collection calls for banks and insurers, serving six Fortune 500s and major firms including MetLife, BBVA, and BNP Paribas Cardif. A YC alum with a female-led team, it reduces costs and improves recovery

Trellis AI

San Francisco

Trellis provides an AI agent that automates healthcare administrative workflows—such as intake, prior authorizations, and appeals—positioning itself as a solutions-focused partner to increase provider revenue while reducing administrative b

Chima

San Francisco

Chima helps leading institutions customize and scale generative AI by integrating and analyzing private and public data to privately leverage commercial LLMs; it builds infrastructure for enterprises to customize LLMs and automate functions

Waystation

Redwood City

Waystation is building the operating system for procurement in consumer packaged goods (CPG). Led by Ryan Caldbeck, the company is backed by Founder Collective, Homebrew, and Slow Ventures and has paying customers.

Dalus

San Francisco

Dalus develops AI-powered software that makes hardware design feel like software development, targeting aerospace, robotics, and defense. Founded in 2024 by Eliot and Sebastian, it has revenue and completed YC W25.

Silimate

Mountain View

Silimate positions itself as the copilot for chip designers, offering a chip design copilot to assist in the design process and to help find and fix functional and PPA issues, claiming it can shave months from tapeout schedules.

Promptless

San Francisco

Promptless builds AI teammates that integrate with users’ existing workflows, serving startups and Fortune 500 enterprises. It ranked among the top W25 by revenue; small founding team has led startups, published LLM research, and graduated

Sepal AI

San Francisco

Sepal AI provides PhD-level experts for AI model development, backed by YC-backed founders from Vercel and Turing. Since 2024, it has raised millions and counts Fortune 500s and top AI labs as customers, building the largest global talent g

Novoflow

San Francisco

Novoflow deploys AI employees for medical clinics, building computer agents to modernize healthcare and automate front- and back-office tasks across a fragmented 400+ EHR ecosystem; contracts secured, backed by YC advisers and top investors

Additive AI

San Francisco

Additive AI, founded in San Francisco, builds AI-powered tools to automate document-heavy tax and accounting workflows; acquired by Thomson Reuters in 2025, it operates as part of a global leader to help professionals make faster, more info

Pearson Labs

San Francisco

Pearson Labs presents itself as a small, high-impact, lean team focused on delivering meaningful results, emphasizing impact over scale; no information is available about its mission, products, services, or market position.

Archon

San Francisco

Archon develops automated, full-stack systems to secure critical public infrastructure and advance national cybersecurity at the intersection of national security and infrastructure protection. The company is rapidly growing, signaling mome

Dream

San Francisco

Dream is an AI platform that automates residential architecture and construction planning, transforming a slow, expensive process into an instantaneous, affordable one by enabling AI-driven design and planning for homes.

Relixir

San Francisco

Relixir is an autonomous search share maximization platform serving 40+ B2B clients. Founded by Berkeley alumni, it participated in Y Combinator's X25 batch and ranks as one of its fastest-growing companies.

Strada

San Francisco

Strada provides AI agents that handle sales and service calls 24/7 for insurance brokers, MGAs, and carriers, enabling them to scale operations. Based in San Francisco and backed by Y Combinator, it serves carriers and MGAs, engaging thousa

Kato

San Francisco

Kato builds an AI-powered servicing platform that automates critical workflows across channels with full compliance and best-in-class recoveries, in production with major fintech lenders including Bilt Rewards and Parafin, emphasizing a com

Midcentury Labs

San Francisco

Midcentury is building a next-generation platform for audio AI that enables secure onboarding of private data and expert-labeled data services from global contributors to tackle multimodal AI with massive data pipelines; it recently raised

StackAI

San Francisco

Stack AI provides a no-code drag-and-drop platform to design, test, and deploy AI workflows that leverage large language models to automate business processes. Its visual interface lets users connect data sources with different AI models to

Aravolta

San Francisco

Aravolta develops software to monitor, optimize, and control data centers, with a focus on data center infrastructure management (DCIM) software. Its mission is to build the next generation of DCIM solutions.

Veritus Agent

San Francisco

Veritus is a YC-backed AI-native platform for loan servicing and debt collection that operates its own collections agency on the platform, acquires charged-off debt to service it with in-house AI agents, and owns the full stack from acquisi

NOSO LABS

San Francisco

NOSO LABS builds agents for the trades to help technicians diagnose accurately and sell 10x better, providing tools that improve diagnostic precision and sales performance for trade professionals.

GroundControl

San Francisco

GroundControl is a vertical SaaS company solving inefficiencies in regulated manufacturing, focusing on aerospace and defense, enabling high-quality parts with precision. It operates in the U.S., serves North American aerospace/defense clie

Pump.co

San Francisco

Pump is a cloud cost-savings company using group buying and AI to reduce AWS compute spend for startups; Forbes calls it the 'Costco of Cloud compute,' with 250+ customers and India expansion to save up to 60% on AWS costs.

Vapi

San Francisco

Vapi provides a configurable platform to deploy voice agents. Aiming to make voice humanity’s default interface, it's grown to 400,000 developers in 20 months and raised $20M in Series A led by Bessemer Venture Partners, Canadian founders J

Storylane

Santa Clara

Storylane enables marketing and sales teams to share product experiences with buyers, connecting them with these experiences to drive product-led growth.

Assembly HOA

San Francisco

Assembly HOA Management is a California-based HOA management firm that automates administrative tasks, enhances transparent communication, and provides online access to information, aiming to transform homeowner associations into turnkey co

Taro

Palo Alto

Taro, a YC-backed startup founded in 2022, reshapes software engineers' career navigation by supporting startup hiring with sourcing and feedback and operating joinTaro.com for opportunities. Its EdTech platform engages 100,000 engineers an

Medplum

San Francisco

Medplum is an open-source, API-first electronic health record (EHR) platform that increases access to and usefulness of medical data, used by major digital health and life sciences companies to build medical applications.

Distro

Palo Alto

Distro is a Y Combinator–backed startup delivering an AI Revenue Platform for sales reps in industrial distribution, modernizing software for counter staff and inside sales at industrial wholesale distributors, with strong traction and vent

Activepieces

San Francisco

Activepieces is an MIT-licensed, open-source no-code business automation platform that can be self-hosted on customers' servers, positioned as a self-hosted alternative to cloud tools like Zapier and aimed at making AI a native part of ente

Dart

San Francisco

Dart, founded in 2022 in San Francisco, positions itself as the only truly AI-native project management tool, with an AI-first, product-driven approach. With about 10 full-time staff (5 engineers) and revenue growth in 2025, it has strong f

Exa

San Francisco

Exa, a San Francisco-based startup, is building a next-generation AI search engine aimed at outperforming Google for power users, with an about 20-person team including alumni from Harvard, MIT, Apple, and Palantir, and a Series A from Ligh

Finni Health

San Francisco

Finni Health enables autism care providers to start, run, and grow their own practice with a dedicated platform, backed by General Catalyst, Greymatter, and Y Combinator, as the market expands with rising diagnoses and enabling legislation.

Nash

San Francisco

Nash builds last-mile logistics infrastructure for the internet, aiming to capture a share of the last mile; founded 2021 by MIT alumni Mahmoud Ghulman and Aziz Alghunaim in San Francisco, backed by YC and a16z, serving Walmart, 7-Eleven, a