Labelbox
Category: AI Infrastructure
Labelbox is a data factory for frontier AI that builds RL environments and evals for leading AI labs (Horizon) and a platform for enterprises to run learning agent fleets (Recursion). Labelbox was founded in 2018. The company is led by Manu Sharma. Based in San Francisco, United States. Team size: 101-500. Total funding raised: $289M. Latest round: Series E. Key investors include Infinitum Partners, Wipro Ventures, Andreessen Horowitz, B Capital, Tau Ventures, Snowpoint Ventures, SoftBank Vision Fund 2, Kleiner Perkins, First Round Capital, Gradient, Databricks Ventures.
- Founded
- 2018
- Headquarters
- San Francisco, United States
- Team size
- 101-500
- Total funding
- $289M
Value proposition
Make customers' models and agents better through RL environments, expert-graded evaluations, and managed agents that learn from real work.
Products and solutions
Horizon (RL environments, evals, and post-training data for reasoning, coding, tool use and computer use), Recursion (platform and Managed Agents for enterprises, with scored runs that train specialist models), the original Labelbox training data platform and expert services.
Unique value
Combines expert-written graders, simulated environments and a closed learning loop where every agent run is scored and feeds specialist model training.
Target customer
Frontier AI labs and large enterprises deploying AI agents
Industries served
Frontier AI labs, enterprise (cross-industry)
Technology advantage
Entrenched with frontier labs (90%+ of leading U.S. AI labs per company), profitable per company site, and a network of expert labelers combined with proprietary RL environment tooling.
How they differentiate
Pairs software tooling (Recursion, Horizon) with managed expert services. It is moving from labeling toward RL environments and enterprise agents that learn from work, and it is independent of Big Tech ownership.
Main competitors
Scale AI, Surge AI, Mercor
Key partnerships
Wipro (strategic partnership announced 2026-11-10, with Wipro Ventures also a Series E investor), Databricks (investor)
Notable customers
90%+ of leading U.S. AI labs (unnamed), Wipro as a channel and delivery partner
Major milestones
Founded 2018, Series D $110M in Jan 2022 at a $1B valuation, Series E of $100M+ at $1.25B pre-money on 2026-10-14, launched Horizon and Recursion, Wipro partnership announced 2026-11-10.
Growth metrics
400+ customers; 90%+ of leading U.S. AI labs per the company site (other sources say 80%+); company states it is profitable; third-party estimates put revenue at $100-250M.
Market positioning
Positions itself as the leading data factory for frontier model post-training, expanding into enterprise agent deployment.
Geographic focus
Global, US-centric
About Manu Sharma
Ex-Planet Product Manager; Founder & CEO of Ardulab; early engineer at DroneDeploy; aerospace engineering background. Co-founded Labelbox in 2018.
Latest news about Labelbox
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Official website: https://labelbox.com