Updated 9 Nov 2026
Labelbox vs Label Studio (HumanSignal), by the numbers.
Labelbox ranks higher by the money on record: its valuation is on record, $1.25B (2026), and HumanSignal's is not, so HumanSignal is ranked on $25M raised.
Label Studio is HumanSignal's product; the figures below are HumanSignal's.
Both sell evaluations and benchmarks. Only Labelbox sells RL environments and expert and human data. Only HumanSignal sells labeling software and annotation. Every figure below is linked to the filing or article it comes from; what each sells is in its own words, from its own pages.
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Side by side
Revenue over twelve months, the newest valuation, disclosed funding and what each says it does.
| Labelbox | HumanSignal | |
|---|---|---|
| Labelbox | HumanSignal | |
| Place on the rankings | #20 of 91 | #52 of 91 |
| Ranked on | $1.25B Valuation, 2026 | $25M Money raised, disclosed |
| Revenue, twelve months | Not on record | Not on record |
| Newest valuation | $1.25B Oct 2026 | Not on record |
| Disclosed funding | $175M in 4 records | $25M in 1 record |
| Sells | RL environments, Expert and human data, Evaluations and benchmarks | Labeling software, Annotation, Evaluations and benchmarks |
| Works on | Coding, Business work, Finance, Legal, Medical, Robotics, Speech and audio, Images and video | Robotics, Languages, Medical |
| Made from | Recorded from people and the real world, Made by experts and contractors | Not stated |
| Takes data from companies | Its own programme | Does not say so |
| Headquarters | San Francisco, California, US | Not on record |
| Founded | 2018 | 2019 |
| In its own words | “Labelbox builds the environments frontier labs train AI on, and the agents engineering and research teams hand their backlog to.” Its page | “Labeling, evaluation, and quality workflows that deploy where your data lives, and scale with the world's most demanding AI teams.” Its page |
- The rule.
- Each company is ranked on the first of these it has on record: its revenue over twelve months (a run rate or a year as published, or its last four quarters added up; an AI segment where the rest of its business is not AI data), then its newest valuation, then the money it disclosed raising. No company pays for a place. The full method and every change to it.
- Twelve months.
- A run rate or ARR is the company's own annualised figure; a year is the year it published. Gross revenue of a human data company includes what it pays its experts.
- Pays companies for data.
- "Through our introductions": it takes companies' data through AIData.Broker's introductions and pays us a referral fee when one goes ahead. That never moves its place: the order is the money on record. "Its own programme": a published programme for buying data. "Says it buys data": its own words, linked.
- Why this pair.
- People search for this comparison: Google suggests it, read on 9 Nov 2026. Neither company asked for or paid for this page.
Selling your company's data to Labelbox or HumanSignal
What each says it pays a company for its data, what it wants and when it pays, in its own published terms.
| Labelbox | HumanSignal | |
|---|---|---|
| Takes data from companies | Its own programme | Does not say so |
| What it says it pays | $50K to $1M Labelbox Prism, home page, 5 Nov 2026 | Not published |
| What it wants | Work documents (coding sessions, scientific and financial workflows, research traces) and operational systems (Salesforce, Jira, Slack, SAP, ServiceNow, Zendesk, CAD, financial workbooks). Its page marks financial and scientific reasoning traces and cross-system workflow data as urgent. | Not published |
| When it pays | "From first call to first wire in under 21 days", with a written quote within 48 hours of scoping. It pays an upfront licensing fee at signing plus a revenue share on downstream use. | Not published |
You need not choose one: AIData.Broker values a company's data free and introduces it to every buyer whose own rules take it. Value your data
On the same rankings
The lists both are ranked on, with each one's place.
- Robotics training data companiesLabelbox #8, HumanSignal #24 of 37
- Medical AI training data companiesLabelbox #11, HumanSignal #23 of 32
- AI evaluation companiesLabelbox #18, HumanSignal #41 of 61
The latest money moves
The newest rounds, valuations and revenue figures of the two, each linked to its record.
- 14 Oct 2026Labelbox raised $100M at a valuation of $1.25B
- 10 Feb 2026Labelbox was acquired by Labelbox
- 18 May 2022HumanSignal raised $25M
- 12 Feb 2021Labelbox raised $40M
- 4 Feb 2020Labelbox raised $25M
- 9 Apr 2019Labelbox raised $10M
The questions people ask
- Is Labelbox bigger than HumanSignal?
- Labelbox ranks higher by the money on record: its valuation is on record, $1.25B (2026), and HumanSignal's is not, so HumanSignal is ranked on $25M raised.
- What is the difference between Labelbox and HumanSignal?
- Labelbox builds the environments and expert data frontier AI labs train on, and AI agents for engineering and research teams. HumanSignal sells Label Studio, an open source data labeling platform with an enterprise edition, plus managed data collection, annotation and evaluation services to AI teams. Both sell evaluations and benchmarks. Only Labelbox sells RL environments and expert and human data. Only HumanSignal sells labeling software and annotation.
- Which raised more money, Labelbox or HumanSignal?
- Labelbox: $175M disclosed, valued at $1.25B (2026). HumanSignal: $25M disclosed.
- Do Labelbox and HumanSignal buy data from companies?
- Labelbox takes data from the companies that hold it, through a published programme. HumanSignal does not say it buys data from companies.
More comparisons
Each company against its whole field, and the other comparisons people search.