AI training data provider Samasource has raised a $14.8 million Series A funding round led by Ridge Ventures. The San Francisco-headquartered company delivers Fortune 100 companies with the inputs they need for machine learning development in fields including autonomous transportation, e-commerce and communications and media. It does so with a global work force of data specialists, a large number of whom are located in East Africa. In addition to San Francisco, New York and the Hague, Samasource has offices and teams in Kenya and Uganda.