SaaS startups in San Francisco Bay Area

Tenjin

San Francisco

Tenjin provides mobile growth infrastructure that organizes, analyzes, and secures data from mobile devices and marketing channels, aiming to replace detached services with an integrated data platform. It operates with a remote-friendly tea

SafeBeat

San Francisco

SafeBeat Rx is a healthcare tech company developing ECG software and a take-home kit to enable at-home initiation of heart medications, backed by YC Summer 2021 and pursuing clinician-approved AI-driven dosing and faster FDA pathways to red

Oxygen

San Francisco

Oxygen is a San Francisco-based modern financial platform offering banking services for digital natives, creators and entrepreneurs. Backed by Runa Capital, Y Combinator and other fintech investors, its banking services are provided by The

Trueplace

San Francisco

Trueplace provides interview-preparation tools through its Confetto AI and Soreno AI platforms, offering resources designed to help individuals prepare effectively for interviews.

Gale

San Francisco

Gale disrupts the $10B immigration services market by delivering a tech-enabled, human immigration process for US H-1Bs that uses automation and AI to boost lawyers' efficiency, reduce costs, and shorten visa turnaround times for U.S. compa

Letter AI

San Francisco

Letter AI provides generative AI-powered sales enablement, unifying training, coaching, and content creation to improve win rates. Since launch, it has onboarded Lenovo and Redpanda as its first customers and secured funding from Y Combinat

WAYLINE

San Francisco

Wayline provides 24/7 support for property managers, serving as a dependable, around-the-clock partner in property management.

Helicone

San Francisco

Helicone is an open-source observability platform for LLM applications, delivering monitoring, optimization, and reliability tools to productionize AI systems. With ~4,000 GitHub stars, a thriving community, 20% MoM growth, and SOC 2 and GD

Stably AI

San Francisco

Stably AI focuses on AI-powered QA testing to help teams deliver software faster. Founded by experts who built testing infrastructure at Google and ML systems at Uber, it positions itself as a leader in AI-powered QA testing.

Toothy AI

San Francisco

Toothy AI automates back-office operations for dental clinics using large language models, led by founders with proven AI-enabled B2B track records (Chen’s SoftBank-backed $1M ARR AI email solution; Kerrigan’s pre-ChatGPT LLM campaign tool)

JustAI

San Francisco

JustAI is a marketing technology company that uses AI to enable 1-to-1 hyper-personalized messaging and continuous always-on testing, reducing operational overhead and accelerating rapid marketing experimentation by moving away from traditi

Origami

San Francisco

The company builds vertical AI agents to handle sales research and develops custom AI web agents. Co-founded by Finn Mallery and Kenson Chung, who previously served as CTO of an enterprise sales platform with $1B+ revenue clients; partnersh

Undermind

San Francisco

Undermind is an AI-powered research agent used by thousands of experts, including top pharma R&D firms and university libraries. Described as the most intelligent science search and synthesis engine, it aims to reinvent research by augmenti

Jiga

San Francisco

Jiga builds a digital, automated, data-driven platform that streamlines procurement of manufactured parts directly from vetted suppliers, connecting buyers with trusted manufacturers to transform traditional manufacturing sourcing.

Lapel

San Francisco

Lapel builds data infrastructure and tools that help customer-facing teams understand every customer and act on insight at scale, pursuing hospitality at scale by unifying context and coordinating action.

Patterns

San Francisco

Patterns aims to make data analysis accessible by using natural language processing and AI to analyze data, aiming to simplify analytics and transform business intelligence, with next-gen financial analysis and AI agents for reporting; tech

Luthor

San Francisco

Luthor is the first AI-native compliance firm for RIAs and broker-dealers, delivering a full-stack program that automates SEC, FINRA, and FinCEN compliance by blending purpose-built LLMs with human expertise (including former SEC attorneys)

ZeroEntropy

San Francisco

ZeroEntropy is a B2B software and services infrastructure company focused on AI-driven information retrieval over complex unstructured data. With a two-person founding team and Y Combinator Winter 2025 participation, it combines mathematics

Embedder

San Francisco

Embedder develops a coding agent for firmware development in embedded systems, enabling writing and testing firmware on real hardware with connections to physical tools. It indexes hardware documentation to provide hardware-specific context

AI Insurance

San Francisco

AI Insurance offers a platform for SMB insurers to run all business processes, aiming to do for SMB insurance what Salesforce did for SMB sales, targeting 10,000+ firms and $238B in admin waste, to digitize and automate claims and underwrit

Ello

San Francisco

Ello is an AI-powered education company aiming to improve literacy and learning outcomes for children and close educational gaps; backed by investors after YC W20 and a Series A, it pursues building the world’s first complete AI teacher for

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

JustPaid

Mountain View

JustPaid offers B2B billing automation from Mountain View, CA, with about 20 employees. Led by CEO/cofounder Daniel Kivatinos and cofounders Anelya Grant and Vinay Datta Pinnaka; Daniel co-founded DrChrono (acquired 2021) and Vinay ran DrCh

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