100 top Software companies and startups in San Francisco in August 2025

OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. AI is an extremely powerful tool that must be created with safety and human needs at its core. OpenAI is dedicated to putting that alignment of interests first — ahead of profit.

To achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity. Our investment in diversity, equity, and inclusion is ongoing, executed through a wide range of initiatives, and championed and...

Perplexity is a free AI search engine designed to revolutionize the way you discover information.

Instabase is a technology company based in San Francisco, which provides an intelligent automation powered by AI. The Instabase platform brings best-in-class market innovation and a suite of intelligent toolkits together to enable any organization to automate end-to-end workflows. Instabase helps the world’s largest banks and insurance companies automate their most complex business processes - from mortgage and claims processing to client onboarding - by extracting and understanding the unstructured data that underpins those. Instabase is backed by leading investors such as Andreessen Horowitz...

Figma is a design platform for teams who build products together. Born in the browser, Figma helps the entire product team create, test, and ship better designs, faster. Whether you’re trying to consolidate tools, get more eyes on your work, or collaborate across time zones, Figma boosts creative productivity while keeping everyone on the samepage. On a mission to make design accessible to all, Figma is helping companies like Airbnb, Slack, and Microsoft redesign how they design.

Vanta is the leading trust management platform that helps simplify and centralize security for organizations of all sizes. Thousands of companies rely on Vanta to build, maintain and demonstrate trust in a way that's real-time and transparent.

Abnormal provides total protection against the widest range of attacks including phishing, malware, ransomware, social engineering, executive impersonation, supply chain compromise, internal account compromise, spam, and graymail.

Plaid is a data network that powers the tools millions of people rely on to live a healthier financial life. Plaid works with thousands of companies like Venmo, SoFi, and Betterment, several of the Fortune 500, and many of the largest banks to make it easy for people to connect their financial accounts to the apps and services they want to use. Plaid’s network covers more than 12,000 financial institutions across the US, Canada, UK and Europe. Headquartered in San Francisco, the company was founded in 2013 by Zach Perret and William Hockey.

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Build software collaboratively from anywhere in the world, on any device, without spending a second on setup

Amplitude is the Digital Optimization System. Powered by the proprietary Amplitude Behavioral Graph, the Digital Optimization System enables organizations to see and predict which combination of features and actions translate to business outcomes – from loyalty to lifetime value – and intelligently adapt each experience in real-time based on these insights. Amplitude is the brain behind more than 45,000 digital products at over 1,000 enterprise customers and 23 of the Fortune 100, helping them innovate faster and smarter by answering the strategic question: "How do our digital products drive o...

Today’s data is complex and often siloed, presenting serious challenges for leading brands that rely on it — to make the right business decisions, to deliver exceptional customer experiences and to stay ahead of the competition. This reliance on data brings with it a need for simplicity, speed and scale. SingleStore delivers the world’s fastest distributed SQL database for data-intensive applications, SingleStoreDB.

Hightouch is a data platform that helps you sync your customer data from your data warehouse to your CRM, marketing, and support tools.

Nozomi Networks accelerates digital transformation by protecting the world’s largest critical infrastructure and industrial organizations from cyber threats. Our solution delivers exceptional network visibility, threat detection and deep insights for OT and IoT environments. Customers rely on us to minimize risk and complexity while building operational resilience.

The customer activation platform that helps brands deliver joyful experiences with harmonized, individualized, and dynamic communications at massive scale.

Zoom is the leader in modern enterprise video communications, with an easy, reliable cloud platform for video and audio conferencing, collaboration, chat, and webinars across mobile devices, desktops, telephones, and room systems. Zoom Rooms is the original software-based conference room solution used around the world in board, conference, huddle, and training rooms, as well as executive offices and classrooms. Founded in 2011, Zoom helps businesses and organizations bring their teams together in a frictionless environment to get more done.

At Baseten we provide all the infrastructure you need to deploy and serve ML models performantly, scalably, and cost-efficiently.

Get started in minutes, and avoid getting tangled in complex deployment processes. You can deploy best-in-class open-source models and take advantage of optimized serving for your own models.

We also utilize horizontally scalable services that take you from prototype to production, with light-speed inference on infra that autoscales with your traffic.

Best in class doesn't mean breaking the bank. Run your models on the best infrastructure without running up costs...

Doma is making title and escrow a simpler, seamless process for lenders, agents and homebuyers across the country. We build transformative technology driven by our passion to improve the customer experience.

Lattice is a people management platform that empowers leaders to build engaged, high-performing teams that inspire winning cultures. With Lattice, it’s easy to launch 360 performance review cycles and engagement surveys, keep track of OKR/goals, gather real-time feedback, and encourage manager 1-on-1 meetings.

At Lattice, we're on a mission to make work more meaningful. If you want to make an impact and are excited about how people strategy can drive business strategy, we want you.

We're hiring for a number of positions! Learn about joining our team here: https://lattice.com/careers/ or conn...

Harness is a rapidly growing startup that is disrupting the software delivery market. We are building an intelligent software delivery platform that enables engineers to deliver software faster, with higher quality, and with less effort. The Harness Software Delivery Platform includes Continuous Integration, Continuous Delivery, Feature Flags, Cloud Cost Management, Service Reliability Management, Security Testing Orchestration, and Chaos Engineering. The platform is designed to help companies accelerate their cloud initiatives as well as their adoption of containers and orchestration tools li...

Unit21 is a risk and compliance platform that enables businesses—including banks, fintechs, and other financial institutions—to detect, investigate, and prevent financial crime such as fraud, money laundering (AML), check fraud, and sanctioned activities.

Unit21's core products include:
AML Transaction Monitoring
Fraud Transaction Monitoring including Real-Time Payment Interdiction
Case Management
Regulatory Filings (SAR, CTR, FINTRAC)
Customer Risk Ratings
Sanctions Screening
Device Intelligence
AI Agent for Investigations

Case studies with banks and CUs:
- Green Dot Bank: https://www.unit2...

Brex is rebuilding B2B financial products making it easy to get your complete business account set up the right way, with deposits, credit cards, rewards, bill pay, and expense management software in one place. We help startups of all sizes (from recently incorporated to later-stage companies) to instantly get a credit card that has 20x higher limits, completely automates expense management, kills receipt tracking and magically integrates with their accounting systems.

Brex was founded by Henrique Dubugras and Pedro Franceschi, two engineers who previously founded Pagar. me, one of the large...

Finix makes it easy for software platforms of all sizes to process payments while increasing revenue and reducing cost.

Finix is trusted by startups and publicly traded companies alike to build and scale their payments infrastructure.

The patented Gong Revenue Intelligence Platform™ captures and understands every customer interaction, then delivers insights at scale, empowering revenue teams to make decisions based on data instead of opinions.

Over 2,000 innovative companies like Paychex, PayPal, Hubspot, LinkedIn, Shopify, SproutSocial, Twilio, and Zillow trust Gong to power their customer reality. With Gong, customers experience improved win rates, increased deal sizes, and accelerated employee ramp-times.

At Affirm, we’re using today’s technology to bring significant disruptive innovation to the financial industry. We focus on improving the lives of consumers by delivering simple, honest and transparent financial products.

We have roles across a variety of teams, including engineering, product, finance, operations, revenue, marketing, people and more.

Building stronger, positive relationships between teachers, parents and students. ClassDojo helps millions of teachers encourage students and engage parents.

Front takes out the pain of shared inboxes, helping companies collaborate as a team on shared email accounts as well as tweets and SMS.

Plug in your company's contact addresses (like support@, jobs@, help@...) and start collaborating straight away: assign, comment and follow conversations with your team.

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Wish is a mobile e-commerce platform that connects millions of consumers with the widest selection of products delivered directly to their doors. Our vision is to unlock ecommerce for the underserved by giving everyone access to the most affordable and convenient shopping experience on the planet.

Equity for all
We’re on a mission to create more owners. With over 14,000 companies, more than 800,000 investors, law firms, and employees on our platform, and a commitment to transparency and equality in equity—we’re breaking the mold of how capital markets operate.

Carta’s investors have helped us grow from our first customer to over 14,000 companies and 800,000 security holders. We are proud to have them with us as we map the global ownership network.

Apideck provides Unified APIs for B2B SaaS businesses to help them accelerate their integration strategy.

Benefits:
- Shorten integration delivery: The time-to-market for launching integrations improves exponentially the more integrations you activate.
- Save development resources: Cut your implementation to a fraction of the development time and save valuable development resources.
- Generate more revenue: Unlock blocked revenue by integration constraints and deliver quickly the integrations your leads need.
- Scalable Pricing: Predictable pricing that scales with the amount of API calls. Re...

Exa (prev. Metaphor) was built with a simple goal — to organize all knowledge. After several years of heads-down research, we developed novel representation learning techniques and crawling infrastructure so that LLMs can intelligently find relevant information.

Spectrum Labs harnesses the power of data, AI, and community to rebuild trust in the Internet, making it a safer, more valuable place for businesses, consumers, and societies. Spectrum Labs’ AI-based Trust & Safety platform identifies toxic behaviors across text, voice, and languages enabling Trust & Safety teams to reduce content moderation costs by 50% and increase detection of brand-destroying behaviors by 10x.

At Assembled, we’re on a mission to create a support operations platform that helps companies maintain exceptional customer experiences—no matter what lies ahead. Leading brands use Assembled’s workforce and vendor management capabilities to make optimal staffing decisions, gain visibility into performance and productivity, and unlock new ways to serve evolving customer needs.

Assembled is a fast-growing, fast-moving, empathy-driven startup that encourages transparent communication, bias toward action, and open disagreements (without the ego). Come help us build for the teams who are quietl...

Orb is the modern pricing platform that gives businesses the ability to bill for seats, consumption, and everything in between. We are on a mission to provide every business with the infrastructure to unlock their revenue.

To date, we’ve powered billing and invoicing for high-growth companies like Airbyte, Materialize, and Dune Analytics, saving them $500k+/year in engineering costs and accelerated their product launches. With Orb’s developer-extensible approach, our customers are able to automate billing, and still have the flexibility to experiment with pricing.

Our product supports t...

PayZen fights healthcare inequity by addressing affordability at the point of payment. Our platform uses Affordability Financing to create a more positive customer experience that gives patients zero-cost options to help them manage medical bills.

Alchemy is a developer platform that empowers companies to build scalable and reliable decentralized applications without the hassle of managing blockchain infrastructure in-house. It is currently faster, more reliable, and more scalable than any other existing solution, and is incredibly easy to integrate!

A new kind of hedge fund built by a network of data scientists.

Numerai manages an institutional grade long/short global equity strategy for the investors in our hedge fund. We transform and regularize financial data into machine learning problems for our global community of data scientists.

In December 2015, we created the world’s first encrypted data science tournament for stock market predictions.

The most accurate and original machine learning models from the world’s best data scientists are synthesized into a collective artificial intelligence that controls the capital in Numerai’s he...

Finch is the API to access payroll and HR systems. We allow admins to connect their company in a compliant and secure manner to applications. Finch integrates across providers enabling developers to access a previously closed system and are at the source of truth for employee data and money flow. Our API powers use cases across lending, insurance, benefits, FP&A, and HR applications.

Sysdig secures and accelerates cloud innovation. Powered by Runtime Insights, our platform stops threats in real time and reduces vulnerabilities by up to 95%. Our roots are in runtime as the creators of Falco, the open standard for cloud threat detection. We apply Runtime Insights across the software lifecycle to prioritize vulnerabilities and instantly detect attacks. From shift left to shield right, customers rely on Sysdig to prevent, detect, and respond at cloud speed.

Sardine is on a mission to make payments instant and risk-free so consumers and businesses can move money confidently. Fraud is a burden on society, as slow payments and high-fraud rates reduce business growth and create systemic risk for the economy. Sardine enables all companies, whether big or small, to improve risk management by having the world’s best API for fraud detection and compliance within financial services. The company also offers instant settlement for crypto and NFT transactions.

Secureframe’s all-in-one security, privacy and compliance platform helps startups / organizations:

Get audit ready in weeks, not months: Secureframe automates the end-to-end process so you can get compliant quickly to accelerate speed to revenue.
Stay current with the latest regulations: As requirements change, Secureframe updates its frameworks, communicates changes and shows any gaps in compliance so you can stay compliant.
Focus limited resources on top priorities: Secureframe helps you achieve and maintain continuous compliance so you can focus on growing your business, customers and reve...

Nium is a global leader in modern money movement. It provides banks, payment providers, and businesses of any size with access to global payment and card issuance services. Its modular platform powers frictionless commerce, helping businesses pay and get paid across the globe with services for pay-outs, pay-ins, card issuance, and banking-as-a-service.

Once connected to the Nium platform, businesses are able to pay out in more than 100 currencies to over 190 countries - 85 of which in real time. Funds can be received in 27 markets, including Southeast Asia, UK, Hong Kong, Singapore, Australia...

For innovators and brands seeking to communicate, collaborate and cooperate like never before Soul Machines™ is the first Human Experience Platform that gives you the ability to automate and personalise digital interfaces and interactions at scale.

Soul Machines™ is a deep science and technology company fusing AI, computational brain models and experiential learning to usher in a new era of Human Experience across all digital platforms and interfaces. We are first applying our innovations to redefine customer and brand experience – through digital interfaces and applications ranging from serv...

Bolt is on a mission to democratize commerce. Bolt strengthens retailers’ relationships with their customers by unlocking secure, logged-in, lightning-fast checkouts. The company’s rapidly growing network of one-click-checkout-ready shoppers visits Bolt merchants as if they are return customers. Hundreds of retailers including Fanatics, REVOLVE,and LVMH brand Benefit Cosmetics leverage Bolt to offer their shoppers the seamless checkout experiences they’ve come to expect across the internet.

Labelbox is a data-centric AI platform trusted by world-class organizations to quickly and efficiently launch their initiatives with LLMS, generative AI, and more. Whether your goal is to build AI at low costs and high velocity or use AI technology to automate tasks and find insights, Labelbox can deliver.

San Francisco-based Blueshift helps brands deliver relevant, connected experiences across every customer interaction. The Blueshift platform uses patented AI technology to unify, inform, and activate the fullness of customer data across all channels and applications. Through unified data, omnichannel orchestration, intelligent decisioning, and unmatched scale, Blueshift gives brands all the tools to seamlessly deliver 1:1 experiences in real-time across the entire customer journey.

Leading consumer brands such as LendingTree, Udacity, Discovery, PayPal, Groupon, and the BBC use Blueshift t...

Brave Software’s fast, privacy-oriented browser, combined with its blockchain-based digital advertising platform, is reinventing the Web for users, publishers and advertisers. Users get a private, speedier Web experience with much longer battery life, publishers increase their revenue share, and advertisers achieve better conversion. Users can opt into privacy-respecting ads that reward them with a frequent flyer-like token they can redeem or use to tip or contribute to publishers and other content creators.

Bid Ops is Sourcing Enablement AI for the modern business, driving savings by getting better quotes faster. Using intelligent first offers driven by AI, Bid Ops more than doubles savings won on every strategic sourcing project. With Fortune 100 customers and impressive savings case studies, Bid Ops is changing the way business leaders manage supplier relationships. Bid Ops was recently recognized as "Best Startup" at Digital Procurement World and listed as "Top 50 Provider To Watch" by Spend Matters. Learn more at bidops.com

MindsDB is an AI data solution that connects to diverse data sources and applications and unifies petabyte-scale structured and unstructured data. Powered by an industry-first cognitive engine that can operate anywhere (on-prem, VPC, serverless), it empowers both humans and AI with highly informed decision-making capabilities.

productboard is the all-in-one product management platform for teams striving to build something that matters:

⭐️ Understand what users need
⭐️ Decide what to build next
⭐️ Earn buy-in for your roadmap

Get started in 2 minutes at productboard.com.

Headquartered in San Francisco, productboard is the product management tool of choice at over 650 companies worldwide, including Avast, BambooHR, Sprout Social, and Envoy.

WalkMe is a cloud based Enterprise Class Guidance and Engagement Platform. The context-intelligent platform guides users and drives them to action within any online experience.
The Platform anticipates user needs and provides help exactly when and where they need it. WalkMe also drives users to action by highlighting new features and recommending relevant high-value offerings.
All of this is accomplished without any changes to or integration with the underlying software.

RapidAPI is an online platform that lets you create a backend for your web / mobile app without writing a single line of code.

Software development is hard.
Postman makes it easy.
Postman is the only complete API development environment. Today we have 10 million developers and over 500K companies using our comprehensive set of built-in tools to support every stage of the API lifecycle. With Postman you can design, mock, debug, test, document, monitor, and publish your APIs all in one place.

Postman first gained popularity in 2012 when Abhinav uploaded his project to the Chrome Web Store. Postman eventually graduated to robust, native apps and is now used by over 10 million developers and 500K companies.

Postman star...

Coralogix is a SaaS analytics platform that utilises machine learning to map the inner flows of any app, detect production malfunctions and actively deliver real time solutions

Coralogix provides actionable solutions to any embedded open source code by automatically extracting data from crowd sources

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Build and Scale Realtime Apps for Connected Devices. The PubNub Data Stream Network powers thousands of IoT, mobile and web apps, streaming more than 3 million messages a second to over 200 million devices a month.

We've built an API that makes shipping easy and affordable for small businesses that are not eligible for bulk discounts. Prices without bulk discounts are usually 80% higher. We give these customers access to better rates offered by smaller courier companies that are difficult to find and compare.
We are a B2B business providing value through our shipping API.

PandaDoc helps fast-moving teams eliminate paperwork by digitizing documents.
Take the work out of your document workflow and focus on what really matters – your business.

Create.
Generate contracts, proposals, quotes and forms by uploading, importing from an integration or simply using the built-in editor.

Collaborate.
Approve, track, analyze, and negotiate by taking full control over your documents.

eSign.
No need for in-person meetings or to bring back that antiquated fax machine – heck you can even throw out your printer. Each PandaDoc plan includes unlimited, legally-binding electronic...