Turner joined investors including Time Warner Investments for a round that increased the online media company's overall funding to $46m in the past two years.

US-based digital media company Mashable raised $15m yesterday in a round led by Turner, a division of media conglomerate Time Warner that also included the firm’s Time Warner Investments unit.

The two Time Warner subsidiaries were joined by growth equity firm Updata Partners, venture capital fund R&R Venture Partners, and angel investors David Jones and Mike Lazerow.

Turner’s funding was provided as part of a strategic collaboration agreement through which the companies will partner on video production, technology and advertising.…