Comcast Ventures led the digital locksmith's series B round, while 7-Eleven's corporate venturing subsidiary returned to reinvest.

Comcast Ventures, the corporate venturing unit of mass media company Comcast, has led a $20m series B round for KeyMe, a US-based digital key copying service.

The round also included participation by 7-Ventures, the strategic investment arm of retail chain 7-Eleven, as well as Battery Ventures, White Star Capital, The Michael Polsky Family Office, and private investors Ravin Gandhi and Jens Molbak.

KeyMe operates a chain of key duplication kiosks and also provides an app that people can use to…