Labelbox raises over $100 million for AI training and agents

Oct 14, 2026
Labelbox raised more than $100 million in Series E financing to develop its Horizon reinforcement learning platform and Recursion Managed Agents service.

Labelbox says in a press release it raised more than $100 million in Series E financing, including equity and a credit facility. Infinitum Partners led the round, with participation from Wipro Ventures, Andreessen Horowitz (a16z), B Capital, Tau Ventures, Snowpoint Ventures and other investors.

The company will use the funding for research, engineering and customer teams supporting Horizon and Recursion Managed Agents. Horizon provides reinforcement learning environments, expert feedback and evaluation infrastructure for AI labs. Recursion Managed Agents lets companies deploy agents within existing business applications and use results from previous tasks to inform later work.

Labelbox says it serves more than 400 customers, including over 90% of leading US AI labs. The company reached profitability in 2026 while growing more than fivefold year over year.

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