HumanSignal

San Francisco, California, USA · ≈70 employees · humansignal.com

HumanSignal is a software development company based in San Francisco, founded in 2019 and formerly known as Heartex. The company focuses on helping data science teams build advanced AI models by integrating human feedback with proprietary methodologies. In June 2023, HumanSignal rebranded to emphasize its commitment to harmonizing human insights with AI development. The company offers a range of services centered around data labeling, dataset creation, and model validation. Its flagship product, Label Studio, is a widely used open-source data labeling tool that supports various data types, including images, video, and text. HumanSignal also provides a cloud-based commercial service, Label Studio Enterprise, which includes enhanced security and automation features. Additionally, the company offers an end-to-end multimodal data creation service, launched after acquiring Erud AI, which supports frontier AI researchers and enterprise teams. HumanSignal serves AI startups, research institutions, and large corporations, with notable clients including Bombora, Geberit, Outreach, Wyze, and Zendesk. The company aims to provide data science teams with the tools they need to manage training data effectively and ensure high-quality outcomes for their AI models.