SaaS startups in San Francisco

Emergent

San Francisco

Emergent enables anyone to build production software by describing requirements in natural language. Founded by Mukund Jha and Madhav Jha, it attracted 700,000 users and $10M ARR in two months, among fastest-growing AI companies, serving en

Synth

San Francisco

Synth helps agent developers maintain and improve their AI software by identifying problems and fixing them with changes to scaffolding code, prompts, and models. It builds Research Engineering Agents and focuses on advancing AI agent devel

Woz

San Francisco

Woz helps non-technical founders turn ideas into scalable software by combining expert engineering, business tools, and go-to-market support, bridging AI-generated code with real-world growth and accelerating the path from concept to market

Stratus Aviation

San Francisco

Stratus Aviation, a YC-backed aviation tech startup, is building an intelligence layer for airport operations by converting live ATC radio, ADS-B, and sensor data into real-time situational awareness, and it participated in Y Combinator bat

Bunkerhill Health

San Francisco

Bunkerhill Health translates AI algorithms from leading research institutions (Stanford, Harvard, Johns Hopkins) into clinical use, bridging academic innovation and patient care. It markets a scalable AI healthcare solution and invites cust

Benchify

San Francisco

Benchify builds a reliability layer for AI-generated code, ensuring dynamic builds and self-healing pipelines so AI-powered software runs reliably and securely without human babysitting. Founded by Juan Castaño and Max von Hippel.

Artificial Analysis

San Francisco

Artificial Analysis is an AI benchmarking and insights firm that helps labs and enterprises understand AI capabilities and shape strategies, serving as go-to authority for labs, enterprises, media, and policymakers; benchmarks are trusted b

ThirdLayer

San Francisco

ThirdLayer, behind Dex, reimagines the browser as an intelligent workspace with Dex, the AI Browser Copilot. Backed by seven-figure funding from top-tier investors, it has a small, fast-moving team and aims to solve how humans and computers

Taskade

San Francisco

Taskade provides a real-time collaboration platform for remote teams, offering task lists, notes, mind maps, and integrated team chat in a single tool, positioning itself as the unified workspace for remote workers and distributed teams.

Cargo

San Francisco

Cargo redefines go-to-market execution by making teams leaner, faster, and engineer-driven, replacing SDR-heavy models with a hybrid manual-automation approach that enables full-cycle AEs. Its platform builds and scales AI-powered workforce

Conductor

San Francisco

Conductor, based in San Francisco, has a three-person in-person team including Omid and is building the first AI orchestrator; backed by Silicon Valley investors to sustain operations through rough patches.

RunRL

San Francisco

RunRL (X25) is a San Francisco–based reinforcement learning as a service provider delivering on-demand RL capabilities to B2B software and services infrastructure companies, operated by a three-person team led by founders Andrew Gritsevskiy

OneText

San Francisco

OneText, founded by former PayPal Checkout leaders, is a payments, AI, and marketing platform enabling payment via a phone number. Backed by Y Combinator, Coatue, Citi Ventures, Khosla Ventures, and founders of Warby Parker, Allbirds, Harry

Zensors

San Francisco

Zensors is a fast-growing tech startup recruiting a Sales and Biz Ops Lead to streamline go-to-market operations and deliver consistently excellent customer experiences for a growing business.

Kontigo

San Francisco

Kontigo is a USDC-based neobank for Latinos building a globally accessible, stable currency platform. By combining neobank services with USDC technology, it aims to provide stable, accessible financial infrastructure for its Latino communit

Apten

San Francisco

Apten is an omni-channel AI agent that automates sales and marketing conversations across SMS, voice, and email, personalizing follow-ups and leveraging CRMs; profitable with 30%+ MoM growth, serving healthcare, education, and home services

CreativeMode

San Francisco

CreativeMode enables players to create no-code Minecraft mods, expanding into a new category of gaming tools; in its first three months it built the most powerful no-code Minecraft modding platform and accounted for a double-digit share of

FlexDesk

San Francisco

FlexDesk helps corporate occupiers manage office and coworking portfolios, aiming to maximize workplace effectiveness and optimize real estate spend. It enables digital transformation in corporate real estate operations through data-driven

SuperTokens

San Francisco

SuperTokens develops open source authentication software for developers and organizations, aiming to offer an open-core, secure, flexible, and easy-to-use solution. It runs on premises for free, with a hosted tier, and is used by hundreds o

Social Radar

San Francisco

Social Radar is a San Francisco-based B2B software and services company with a three-person team, founded by Rohan Arora and Venkat Krishnan. It bills itself as the best way to search for posts, people, and comments across channels.

Candid Health

San Francisco

Candid Health uses data science and machine learning to automate medical billing and reduce costs in the US healthcare system. A Y Combinator W20 alum with strong investor backing and rising demand from potential customers.

CodeAnt AI

San Francisco

CodeAnt AI, a Y Combinator-backed startup in code quality and security, uses AI-driven and deterministic fixes to improve code quality and safety, earning trust from unicorns and public companies and support from top Silicon Valley investor

AIVideo.com

San Francisco

AIVideo.com is a vertically integrated studio that brings creators together every 10 weeks to produce content in a mansion, using viral feedback to productize ideas. It grew to $1.3M ARR in 12 months and seeks 10x growth, inviting talent.

Godela

San Francisco

Godela, a San Francisco-based, three-person B2B software startup founded by Abhijit Pranav Pamarty and Cinnamon Sipper, builds AI models for engineers and scientists, including first Physics Foundation Model that learns from simulation, exp

Mentum

San Francisco

Mentum builds an LLM-powered, AI-native workflow tool for supply chains, helping procurement find and buy goods globally. Backed by Gradient Ventures and Y Combinator, it targets a $300B/year market and partners with manufacturers across re

Arnata

San Francisco

Arnata develops AI Workers, autonomous agents for logistics teams designed to operate within their workflows.

Pangolin

San Francisco

Pangolin is an open-source proxy and network/ingress orchestration platform that securely exposes applications with identity-aware access control. It has a vibrant community around fosrl/pangolin on GitHub with 15k+ stars, 315k+ deployments

Anglera

San Francisco

Anglera, a Y Combinator S24 company, uses AI agents to transform messy product data into structured, AI-ready listings and automate catalog management, positioning itself as infrastructure for intelligent commerce; led by Amay Aggarwal and

Surface Labs

San Francisco

Surface Labs builds an AI-powered marketing operations platform for B2B clients, generating tens of thousands of leads monthly for dozens of customers. Backed by investors and a remote team, founders include CEO Saharsh Agrawal and Arjun Sa

Apero Health

San Francisco

Apero is a San Francisco-based Y Combinator-backed startup simplifying medical billing with greater transparency; it has raised about $240 million from notable investors and serves 30+ practices, some with 50+ providers, while actively hiri

Vooma

San Francisco

Vooma builds an AI agent and automation platform for logistics, leveraging AI research and autonomous-vehicle expertise. Founded by Jesse Buckingham and Mike Carter, it has seed funding from Tier 1 investors and enterprise contracts with le

Meridian Industries

San Francisco

Index is a modern BI platform for dashboards and metrics, prioritizing consistency, simplicity and familiarity to feel timeless and powerful. Backed by Google, Slack, Kleiner Perkins and founders of Eventbrite, Box and Okta, it targets a la

Text.ai

San Francisco

Text.ai is a consumer-first, AI-native company building first AI-native group chat platform where every conversation is intelligent, collaborative, and effortless. Backed by Y-Combinator, it aims to make multiple humans happy through true g

OfOne

San Francisco

OfOne uses voice AI to transform drive-thru experiences for top-50 restaurant chains, automating tens of thousands of orders weekly during an active rollout. Backed by Gaia Ventures, SignalFire, Correlation Ventures, and Y Combinator, it is

BrowserOS

San Francisco

BrowserOS develops an open-source agentic browser to host a generalist AI agent that performs tasks in the browser. It invites collaboration on building browser agents and training Large Action Models, positioning itself as a developer of b

GoodFin

San Francisco

GoodFin is a seed-stage startup unlocking private wealth and markets with AI-native, human-driven platforms for hyperpersonalized, automated investments in alternative assets, targeting the next generation amid the largest intergenerational

QualGent

San Francisco

QualGent is an AI-powered QA tester for mobile apps, helping teams catch bugs before production and ship faster without extra QA hires; it was founded by Google veterans and is a YC X25 participant.