Companies / Data vendor
HumanSignal
HumanSignal makes Label Studio, which it describes as the most widely adopted open source data labeling and evaluation platform for AI development, and sells Label Studio Enterprise. Recorded here: what it sells, in its own words and 1 funding event.
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Founded 2019humansignal.comLatest record 8 Nov 2026
Also ranked #14 of 17 multilingual data companies, #21 of 26 medical AI data companies, #22 of 31 robotics training data companies, #25 of 40 data labeling companies and #41 of 60 AI evaluation companies, on the rankings of the AI data market.
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<a href="https://aidata.broker/best/data-labeling-platforms#humansignal"><img src="https://aidata.broker/badges/data-labeling-platforms/humansignal" alt="HumanSignal: #10 of 14 data labeling platforms on the AIData.Broker rankings" height="64"></a>
HumanSignal and its competitors, ranked. Compared head to head with CVAT and Roboflow.
What HumanSignal sells
In its own words, read on its own site 8 Nov 2026. On the vendor register
- What it sells
Labeling software: “The open source platform for data labeling, AI evaluation, and human-in-the-loop workflows.” labelstud.io
Annotation: “We specialize in operationally-complex, multimodal data collection and annotation.” humansignal.com
Evaluations and benchmarks: “Evaluate models with nuance & precision” humansignal.com
- Where its data comes from
- Its pages do not say.
- Buys data from owners
- Its pages do not say it does.
- Areas its pages name
- Robotics, Languages, Medical
Funding and acquisitions
| When | Event | Amount | Source |
|---|---|---|---|
| 18 May 2022 | Series A | $25M | TechCrunch, 18 May 2022 |
Cite this
AIData.Broker, “HumanSignal in the AI training data market”, reviewed 8 Nov 2026. https://aidata.broker/companies/humansignal
Free to reuse under CC BY 4.0 if you credit AIData.Broker and link to this page. Each row names the publication that stated it, and words quoted from a source keep that source's own terms.