Irvine-based Opus Bank raised $100 million in new capital in a round of equity financing led by Chief Executive Stephen Gordon and other prior investors.

Among them were funds affiliated with New York-based Elliott Management Corp., Fortress Investment Group LLC in New York, and Greenwich, Conn.-based Starwood Capital Group.

The bank expects to use the capital for internal growth and acquisitions, according to a statement.

Opus recently moved its headquarters to Irvine from Redondo Beach.

It’s the largest commercial bank based in Orange County, with about $2.2 billion in assets. Opus expects to reach $3 billion in assets when it completes its Fullerton Community Bank acquisition, which is expected on Oct. 31.