Subtraction Capital

Zipline designs, manufactures, and operates autonomous delivery drones, running the world's largest commercial autonomous logistics network. The company began delivering blood and medical supplies to remote clinics in Rwanda in 2016 and has expanded to seven countries and consumer deliveries with partners like Walmart. Zipline has completed over 2 million commercial drone deliveries.

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.

Parsable was a connected worker platform that replaced paper-based procedures with mobile, interactive digital work instructions for industrial and manufacturing environments. The platform enabled frontline workers in sectors like food and beverage, oil and gas, and chemicals to collaborate in real time, improving productivity, quality, and safety across plant floor operations. Originally founded as Wearable Intelligence in 2013, the company was acquired by CAI Software in September 2024.