Top Tech Startups in San Francisco, CA in 2027

Action on AI Search with Athena. Backed by Y Combinator, FCVC (seed investor in Coinbase, Instacart, Webflow, Rippling), Eli Schwartz, and current and former CMOs, AthenaHQ is the preferred AI-search partner for forward-thinking marketing organizations Featured on Forbes, WSJ, and Business Insider. Trusted by hundreds of next-gen marketing teams at Paperless Post, Ollie, Checkr, OneSignal, and more. athenahq.ai/careers

At INVEXORA TECH, we specialize in delivering Premium, High-Intelligence Private Market Insights that serve as the backbone for strategic fundraising, deal-making, and market expansion. Our solutions are engineered for professionals who refuse to rely on guesswork instead, they demand precision, reliability, and actionable insights to secure capital, forge partnerships, and accelerate growth. We recognize that not all investor data is created equal. Publicly available directories often lack depth, accuracy, or real-time relevance, leaving businesses with outdated leads and missed opportunities. That’s why we’ve built our reputation on curating, verifying, and continuously updating the most comprehensive investor intelligence available. Our archives span the full spectrum of capital sources from Venture Capital (VC) and Private Equity (PE) firms to Family Offices, Institutional Investors, Hedge Funds, and Angel Networks each enriched with critical details such as investment focus, historical deal activity, key decision-makers, and direct contact avenues. Whether you’re a startup founder seeking seed funding or a corporate strategist scouting for acquisitions, our data ensures you’re equipped with the right connections at the right time.

Higher education runs on fragmented data — across the SIS, LMS, CRM, and many others. Straia unifies it all.We’re building the AI-native intelligence layer for colleges and university systems, allowing administrators and leaders to ask questions in plain English and receive instant, decision-ready insights, visualizations, and reports without relying on manual queries or lengthy reporting cycles.By connecting siloed data sources and embedding intelligent agents into decision workflows, Straia helps institutions improve student success, optimize operations, and build a much more resilient higher education ecosystem.

Dynarii is a skill-based stock market gaming platform where players compete using real stocks. Pick'Em contests, 1v1 PvP battles, real performance, real winners. We're building the intersection of fantasy sports and the stock market — a pure competition platform that makes the market the playing field. Problem We're Solving: The stock market is one of the most compelling competitive arenas in the world — but nobody's built a good game around it. Trading apps are too complex and too risky for most people to engage with. Finance education platforms are boring. Fantasy sports platforms ignore the market entirely. Dynarii closes that gap. We give players a way to compete using their market knowledge without any of the financial risk — skill-based, social, and built for competition from the ground up.

Decisionly is the AI-powered dispute automation solution for card issuers, eliminating cost and enabling compliant, scalable card operations. Decisionly automates complex manual workflows end-to-end, modernizing payment infrastructure and generating unique first-party fraud insights for fintechs, processors and banks. Our founding team has a strong track record and unique founder-market fit. We founded Chargehound (backed by Y Combinator, Khosla), the first automated dispute solution for merchants like Airbnb, Uber and Doordash. PayPal acquired Chargehound in 2021 for $XXXM. Decisionly is growing rapidly and is backed by Fika Ventures, Vesey Ventures, Dash Fund, and angels from top fintechs including Stripe, Brex and Plaid. We are a remote company.

How It Works: Clients interact over text with in-house coaches and get non-stop support to improve their nutrition, exercise and lifestyle habits: agreeing weekly goals, asking questions anytime, getting feedback on progress and discussing pain points. Our coaches provide proven behavioural support which can’t be automated. Our tech automates key coaching practices to streamline human time and to ensure remaining human tasks can be performed by more affordable, Fitmate-certified coaches. Each coach can thereby superscale a client base who otherwise can’t afford this service, whilst providing personalized support & accountability never experienced before. Outcome: Fitmate clients pay 80% less to access behaviour change support provided by human coaches, are 8x more likely to retain and 2x more likely to lose weight compared to weight loss apps and similar.

Sigma is SaaS, next-generation business intelligence and data exploration platform that is disrupting the analytics landscape. Sigma offers a spreadsheet-like interface that enables all decision makers to securely analyze up to billions of rows of live data with the unlimited scale and speed of the cloud. Sigma is backed by Sutter Hill Ventures which brought Sumo Logic, Pure Storage and Snowflake to IPO. Simply speaking, Sigma connects to the cloud warehouse of the users, shows the selected tables in the spreadsheet form, lets them do aggregation, filtering, sorting and editing, and then provides the necessary tools to create visualizations and build dashboards.

At Numero, we build software for political campaigns and nonprofits. We were founded in 2019 (after our founders met while working together on a Congressional race) with the goal of building a modern fundraising software suite from the ground up – one that users actually want to use. In that time, we’ve scaled our platform to serve thousands of clients ranging from city council seats to US Senate races, and have helped them collectively manage over $10B in contributions. Our platform is an all-in-one system comprised of a donor CRM, a broadcast email/text tool, and payment processing pages that our clients rely on for their work every day. We’re small, tight-knit team that has deep experience in this space and are backed by world class investors including 776, Y Combinator, and Initialized Capital.