Clustrix, a cloud-based scale-out SQL database company, has closed a $10 million Series D financing round led by HighBar Partners. HighBar joins existing investors Sequoia Capital, U.S. Venture Partners, ATA Ventures and Don Listwin, founder of Canary Foundation and former executive at Cisco and CEO of OpenWave.

The funding will be used to further product development for Clustrix, among other things, says the company. The investment represents the company’s fourth round of funding, bringing the total capital raised to $56.5 million.

John Kim and Roy Thiele-Sardina, managing partners of HighBar, and Mike Hodges of ATA Ventures is joining the Clustrix board.