The education provision startup has raised $10m from a group of new and existing investors, and has now secured $21m since it was founded in 2012.

Quad Learning, a US-based company that aims to bridge the divide between community colleges and four-year institutions, has closed its series B round, which included Comcast Ventures, the corporate venturing unit of media and communications company Comcast, and student loan guarantor ECMC.

ECMC and MentorTech Ventures participated as new investors, while Comcast joined other existing investors, including venture capital firms Swan & Legend Venture Partners, New Enterprise Associates and CNF Investments, in the round.

Launched in 2012, the series B…