Market landscapes / Training Data / Expert Data & RL Environments for Frontier Labs
Labelbox
Training environments and expert data for frontier AI labs. Labelbox builds the systems that frontier labs train on, and supplies agents that engineering and research teams use to work through their backlogs.
Expert Data & RL Environments for Frontier Labsalso: Data Labelling & Annotation Services201-500 peoplelabelbox.com ↗
Updated 9 November 2026
Hiring now
From Labelbox's own jobs board, checked every week.
Hiring its own recruiters. With a recruiter on the list, it is preparing to hire at a faster pace.
Where the roles are
Against its sector
17 of the 67 active companies in Expert Data & RL Environments for Frontier Labs are advertising roles. Mercor has the most, with 109.
Who Labelbox competes with
The other active companies we file under Expert Data & RL Environments for Frontier Labs, sorted by how much they are hiring.
Where this fits
Expert-generated data and reinforcement learning environments, sold almost entirely to the frontier labs. It exists because the labs decided data produced by specialists was worth more than more volume scraped from the open internet.
We track hiring and team changes across all 174 companies in Training Data.
Our talent report for this sector shows how Labelbox's team compares with its competitors.
What is in it:
- Every company's team size, side by side, grouped by sub-sector
- Who grew their team over the last year, and by how much
- Who is losing people: attrition for each company, against the sector average
- Who is hiring right now, and how many open roles each has
I am Ben Jackson. I map this market, and I hire the commercial teams inside it: sales, marketing, product and delivery.
If you are building a team at a company like Labelbox, want to work at one, or think Labelbox is filed in the wrong place, put 20 minutes in my diary.
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