Top Tech Startups in San Francisco, CA in 2027

SimilarWeb is the pioneer of digital market intelligence, and the standard for understanding the digital world. Our platform provides customers with granular insights about every website and mobile app enabling visibility into digital behavior and letting businesses see what is actually happening with their competitors, their industry and throughout the digital world. We have thousands of paying customers worldwide and millions of users using our free platform every month. Our customers are some of the largest global brands in the world and including Walmart, AirBnb, adidas, DHL and eBay. SimilarWeb raised over $112 million and has over 400 employees in 8 offices around the world in NY, SF, London, Tel Aviv, Tokyo, Kiev, Paris, San Paulo. With the insights and the data we provide businesses, agencies, marketers and analysts can benchmark performance against competitors, reveal competitors online strategy, discover new opportunities, identify emerging trends and understand consumer

Spruce is a communication software platform built for independent healthcare practices. Our HIPAA-grade, cloud-based solution integrates a business phone system with texting, faxing, and telemedicine—optimizing care collaboration, streamlining patient interactions, and ensuring accountability. Trusted by tens of thousands of healthcare organizations across the U.S. and backed by over 60,000 5-star reviews, Spruce is transforming healthcare communication.

Contra is a professional community for your independent journey. Digital professionals use Contra to create stunning visual profiles, earn money commission-free, and build high-quality professional communities and referral networks. Contra was started by a group of independents who were tired of existing professional networks that are blind to the needs of digital professionals. We’re creating a new way to work for the independent digital workforce.

Construction is an industry built on change. With each new project, we change skylines, strengthen communities, and transform cities for the better.‍ But the reality isn’t always so simple. Between compliance and change orders, false starts and permit delays, the construction industry has a paperwork problem—especially when it comes to getting paid.‍ Cash flow is the lifeline of any contractor’s business, but billing is painful and slow. With so much manual work involved, a small, honest mistake can hold up millions of dollars in cash flow. And even when things go right, the time and effort it takes to get paid takes away from the work that really matters. We believe that when you free up payments, you free up people to take on whatever’s next. We started Siteline to give construction teams a financial foundation to build on. Because when people are on the same page about getting paid, they can focus on whatever's next—whether that’s a new idea, a new project, or more time with their family. We’re reimagining construction finance to help contractors get paid, grow their business, and build a better future for all of us.

Ascend is revolutionizing the financial operations of the insurance industry. Insurance accounts for a staggering 7.2% of global GDP but more than 40% of payments still reliant on paper checks. We automate the financial tasks associated with selling and buying insurance from end-to-end — from online customer payments, premium financing, to the distribution of commissions and carrier payables. We help digital distributors sell more insurance by simplifying operations, reducing payment friction and delivering the modern checkout experience customers expect. 

Volley builds the best voice-controlled games and entertainment experiences for Amazon Alexa, Google Assistant, smartphones, and Fire TVs. Popular Volley voice games include Song Quiz, Jeopardy!, and The Price Is Right. Our voice apps are used by millions of people every month. We believe voice control will become the main way people access entertainment in their bedrooms, kitchens, living rooms, and cars, and our goal is to become the "Netflix of Voice" for this emerging category of devices. Volley was founded by Max Child and James Wilsterman in 2016. We're a 60+ person hybrid remote/in-person company, headquartered in the Hayes Valley neighborhood of San Francisco. While we work to make home entertainment more accessible and engaging, we like to have fun along the way, with team lunches, Friday happy hours, and very active #food and #pets slack channels. If any of this sounds fun to you (we promise it is), come join us! Read more about Volley's culture and mission here: volleythat.com/post/volley-mission-culture-and-what-we-create

Unity is the world’s leading platform for creating and operating real-time 3D (RT3D) content. Creators, ranging from game developers to artists, architects, automotive designers, filmmakers, and others, use Unity to make their imaginations come to life. Unity’s platform provides a comprehensive set of software solutions to create, run and monetize interactive, real-time 2D and 3D content for mobile phones, tablets, PCs, consoles, and augmented and virtual reality devices. The company’s 1,400+ person research and development team keeps Unity at the forefront of development by working alongside partners to ensure optimized support for the latest releases and platforms. Apps developed by Unity creators were downloaded more than three billion times per month in 2019 on more than two billion unique devices. For more information, please visit unity.com. Download Unity: unity3d.com/get-unity We're hiring! Visit our careers site: careers.unity.com For support, please email: [email protected] Check us out on our other social channels: Twitter: twitter.com/unity3d Facebook: facebook.com/unity3d LinkedIn: linkedin.com/company/unity-technologies Instagram: instagram.com/unitytechnologies

AMPAworks is a team of doctors, nurses, and engineers who have built an IoT system leveraging computer vision deep learning to monitor and re-order inventory in hospitals. We provide real-time data that saves the average hospital $10million annually by automating manual inventory enumeration tasks.

Highnote is the world’s most modern card platform, purpose-built to grow customer loyalty, engagement, and revenue through embedded card issuance experiences. With an all-in-one platform and a fully integrated issuer processor built from scratch to address the use cases of today and tomorrow, Highnote gives enterprises unparalleled control, flexibility, and speed to realize their customer vision through innovative embedded finance experiences. Utilizing the developer-friendly Highnote platform, product and engineering teams at digital enterprises of all sizes can easily and efficiently embed virtual and physical payment cards (commercial and consumer prepaid, debit, credit, and charge), ledger, and wallet capabilities into their existing products, creating compelling value for users while growing revenue and building a unique and differentiated brand.

Amazon is guided by four principles: customer obsession rather than competitor focus, passion for invention, commitment to operational excellence, and long-term thinking. We are driven by the excitement of building technologies, inventing products, and providing services that change lives. We embrace new ways of doing things, make decisions quickly, and are not afraid to fail. We have the scope and capabilities of a large company, and the spirit and heart of a small one. Together, Amazonians research and develop new technologies from Amazon Web Services to Alexa on behalf of our customers: shoppers, sellers, content creators, and developers around the world. Our mission is to be Earth's most customer-centric company. Our actions, goals, projects, programs, and inventions begin and end with the customer top of mind. You'll also hear us say that at Amazon, it's always "Day 1."​ What do we mean? That our approach remains the same as it was on Amazon's very first day - to make smart, fast decisions, stay nimble, invent, and focus on delighting our customers.