Labelbox

Labelbox is an AI training data platform founded in 2018 in San Francisco by Manu Sharma, Brian Rieger, and Dan Rasmuson. It provides tools for labeling, reviewing, and enriching image, video, text, and audio datasets used to train machine learning models.

Labelbox customers include leading AI labs and Fortune 500 enterprises across autonomous vehicles, retail, and healthcare. The platform supports model-assisted labeling, human-in-the-loop workflows, and evaluation services through its Alignerr workforce.

The company has raised approximately $189 million, including a $110 million Series D led by SoftBank Vision Fund 2. Other investors include Andreessen Horowitz, Kleiner Perkins, and First Round Capital.