Tutor Intelligence raises $75M Series B led by a16z to scale robot deployment

The Watertown robotics startup rents its warehouse robots by the hour and wants real-world work to train its AI models Tutor Intelligence has raised $75 million in a Series B round led by Andreessen Horowitz (a16z). The round was announced on November 2, 2026. The Watertown, Massachusetts robotics company plans to use the money to grow its robot fleet and scale manufacturing. It also wants to keep feeding its AI models with data from actual factory and warehouse work. From basement welding to Fortune 50 floors Co-founders Josh Gruenstein and Alon Kosowsky-Sachs have been building robots since childhood. Gruenstein reportedly welded robots in the basement of the apartment building where he grew up, knocking out the elevators more than once. The founders eventually took that energy to MIT, and the company was spun out of MIT CSAIL in 2021. Tutor now employs 160 people. Its robots work in Fortune 50 factories and warehouses, plus small mom-and-pop businesses across the US. The numbers behind the round The new raise brings Tutor’s total funding to $117 million. Its previous round, a $34 million Series A, closed in December 2025. Tutor has not disclosed its valuation or revenue. The ope...