
HumanSignal enables data science teams to build AI models with their company DNA. With the emergence of generative AI, it’s more important than ever to build highly differentiated models by guiding foundation models with proprietary data and human feedback. Creators of Label Studio, the most popular open source data labeling platform, HumanSignal enables data scientists to develop high quality datasets and workflows for model training, fine tuning and continuous validation. Today, the Label Studio open source community has more than 250,000 users who have collectively annotated more than 100 million pieces of data. Label Studio Enterprise is available as a cloud service with enhanced security, automation, quality review workflows, and performance reporting, used by leading data science teams including Bombora, Geberit, Outreach, Wyze, and Zendesk.

HumanSignal enables data science teams to build AI models with their company DNA. With the emergence of generative AI, it’s more important than ever to build highly differentiated models by guiding foundation models with proprietary data and human feedback. Creators of Label Studio, the most popular open source data labeling platform, HumanSignal enables data scientists to develop high quality datasets and workflows for model training, fine tuning and continuous validation. Today, the Label Studio open source community has more than 250,000 users who have collectively annotated more than 100 million pieces of data. Label Studio Enterprise is available as a cloud service with enhanced security, automation, quality review workflows, and performance reporting, used by leading data science teams including Bombora, Geberit, Outreach, Wyze, and Zendesk.
Product: Label Studio — open-source and enterprise data labeling/annotation platform
Founded: 2019
Rebrand: Rebranded from Heartex to HumanSignal in June 2023
Users / community: Label Studio community: over 100,000–250,000 users (reported figures vary)
Latest known funding: Series A led by Redpoint (May 18, 2022)
Data labeling, dataset creation, model training/validation, human-in-the-loop AI
2019
Software Development
Seed round reported in early January 2021
25,000,000
Series A led by Redpoint with participation from Unusual Ventures, Bow Capital, Swift Ventures and angels
“Redpoint led Series A; other investors include Unusual Ventures, Bow Capital, Swift Ventures”
| Company |
|---|