HumanSignal
San Francisco, CA, USA
Founded 2019
HumanSignal is the company behind Label Studio, the most popular open source data labeling platform. They are on a mission to help data scientists use data to teach ML/AI models how to make the best predictions and advance data-centric AI.
Last Updated: August 23, 2025
Current Valuation
$150M
as of May 31, 2022 (Source)
Funding Summary
$30M
Total reported funding
Announcement
March 24, 2026
HumanSignal Blog: Manage Quality at Scale with Super-granular Agreement
Announcement
November 5, 2025
HumanSignal Press Release: HumanSignal Launches Multimodal Data Services with Acquisition of Erud AI
Announcement
November 5, 2025
Label Studio Blog: HumanSignal acquires Erud AI to build the world’s frontier data lab
Key People
Core OSS Projects
Label Studio is a multi-type data labeling and annotation tool with standardized output format.
License: Apache-2.0
Business Information
Industries
Software
Technologies
Training Data
Data
Machine Learning
AI
Python
API
Sectors
EnterpriseDevelopers
Licenses
Apache-2.0
Socials and Communities
LinkedIn
linkedin.com/company/humansignal/
Slack
slack.labelstud.io/?source=site&__hstc=87910535.7ce048edff6594b9884d85c18214011b.1755969934559.1755969934559.1755969934559.1&__hssc=87910535.1.1755969934559&__hsfp=284109694&_gl=1*95r9dm*_gcl_au*MjMyNTk5NDMuMTc1NTk2OTkzNA..*_ga*ODAyNjQ0MDk3LjE3NTU5Njk5MzQ.*_ga_NQELN45JRH*czE3NTU5Njk5MzMkbzEkZzEkdDE3NTU5NzA1MzEkajYwJGwwJGgw
X (Twitter)
x.com/humansignal_
YouTube
youtube.com/channel/UCbloiVAlCYzBatZXk-b5rFQ
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