Spark Capital

AI safety company and maker of Claude AI models

AI data infrastructure company that provides data labeling, model evaluation, and software to accelerate the development of AI applications for enterprises, government agencies, and AI labs.

Self-driving car technology company that developed autonomous vehicles for ride-hailing and delivery services. Founded as a Y Combinator startup, acquired by General Motors in 2016, and became one of the most heavily funded autonomous vehicle ventures in history before GM wound down its robotaxi operations in December 2024.

The first federally regulated prediction market exchange in the United States, approved by the CFTC as a Designated Contract Market in 2020. Enables users to trade event contracts on real-world outcomes spanning economics, politics, weather, sports, and culture. Emerged from Y Combinator's W19 batch.

Affirm is a financial technology company that provides buy now, pay later (BNPL) services, offering consumers transparent installment payment options at the point of sale. Founded by PayPal co-founder Max Levchin, it is the largest U.S.-based BNPL platform.

Workplace messaging and collaboration platform that transformed business communication. Originally built as an internal tool at Tiny Speck during development of the game Glitch, then pivoted to become the fastest-growing enterprise software company in history.

Fintech infrastructure company that builds data connectivity tools to power the apps in people's financial lives, providing APIs to connect applications with users' bank accounts.

Austin-based energy technology startup that manufactures, installs, owns, and operates residential battery storage systems to provide homes with affordable, reliable backup power. The company operates as both a licensed electricity provider and a virtual power plant, pooling thousands of home batteries into a distributed energy network that strengthens the grid.

Carta is an ownership management platform that helps companies, investors, and employees manage equity and ownership. The company provides cap table management, 409A valuations, fund administration, and equity plan management, serving over 35,000 startups and 200+ venture funds.

Cloud communications and CRM platform enabling businesses to engage customers across SMS, email, WhatsApp, and other channels via APIs. Originally known as MessageBird, rebranded to Bird in February 2024. Serves 15,000+ customers across 170+ countries with AI-powered marketing, sales, and payment tools.

Communication platform for communities and friends, offering voice, video, and text chat used by hundreds of millions of people worldwide.

Global HR and payroll platform that enables companies to hire, pay, and manage workers and contractors in over 150 countries, handling compliance, taxes, and benefits.

Flock Safety builds an integrated public safety platform combining AI-powered license plate readers, gunshot detection, video surveillance cameras, and Drone As First Responder technology. The company's technology is deployed in over 5,000 communities and 4,800 law enforcement agencies across the U.S., helping solve hundreds of crimes per day.

MatX designs custom silicon optimized for large language model training and inference, aiming to deliver 10x more computing power per square millimeter than Nvidia GPUs. Founded by former Google TPU engineers, the company is building the MatX One processor featuring a splittable systolic array architecture with SRAM-first design. Manufacturing is planned through TSMC with initial shipments targeted for 2027.

Cryptocurrency exchange and blockchain platform

Benchling is a cloud-based life sciences R&D platform that helps biotech and pharmaceutical companies manage experiments, track data, and accelerate research and development. The platform replaces physical lab notebooks and spreadsheets with collaborative, AI-ready digital tools used by over 1,200 customers worldwide.

Mercury is a fintech company that provides business banking services built specifically for startups, small businesses, and scaling companies. The platform combines FDIC-insured checking and savings accounts with modern tools like cashflow analytics, intuitive dashboards, and efficient payments. Trusted by over 200,000 startups, Mercury reached $650 million in annualized revenue by Q3 2025.

Alpaca provides brokerage API and trading infrastructure that enables fintech companies and developers to build stock and crypto trading experiences into their applications.

Canadian wearable technology company, originally founded as Thalmic Labs. First gained attention with the Myo gesture control armband, which used electromyography sensors to translate arm muscle activity into computer input (named one of Time Magazine's top inventions). Rebranded to North in 2018 and pivoted to Focals, everyday smart glasses with holographic display and Alexa integration. YC W13. Acquired by Google/Alphabet in June 2020 for a reported $180M.

Descript is an all-in-one AI-powered video and audio editing platform that enables users to edit media by editing text. The platform transcribes audio to a text document, allowing creators to edit video and audio as easily as editing a Google Doc. Features include text-based editing, AI voice cloning (Overdub), filler word removal, screen recording, and publishing tools.

Oculus VR designed and manufactured the Oculus Rift virtual reality headset, widely credited with reviving the modern VR industry. Founded by Palmer Luckey after a record-breaking Kickstarter campaign, the company was acquired by Facebook (now Meta) in 2014 for approximately $2 billion.

Panorama Education is a K-12 data analytics platform that helps school districts collect and act on survey data about social-emotional learning, school climate, and student outcomes. Trusted by 2,000+ districts serving 15 million students across all 50 states, the company provides research-backed surveys and analytics tools for educators.

AI-native enterprise resilience platform that delivers verifiable, continuous data protection. Connects to all environments, security solutions, and backup tools to autonomously map infrastructure and backup data, uncovering gaps that break recovery plans. Turns data resilience from manual backup processes into automated, AI-powered capability for CISOs and IT leaders.

Convex is an open-source reactive backend-as-a-service platform that provides a real-time database, serverless functions, and client SDKs for building live-updating web and mobile apps. The platform integrates a TypeScript-based document store and function runtime for queries and mutations. Convex went open source in March 2024.

Social gaming company best known for Draw Something, a viral mobile drawing game that reached 50M downloads in 50 days and was downloaded over 200M times. Originally launched as iminlikewithyou in 2006, combining social networking with Flash-based browser games. Produced 37 games on a real-time multiplayer platform. Acquired by Zynga for $180M ($210M with earnout) in March 2012, then shut down in June 2013.