Anheuser-Busch is expanding into the craft beer market.

The company today announced the purchase of Seattle-based craft brewery Elysian Brewing Company. According to a press-release posted online, Elysian sold 50,000 barrels of craft beer in 2014. Its Immortal IPA accounted for more than a quarter of total volume.

Elysian began operations in 1995 and currently operates four breweries in Washington. It distributes products in 11 states and internationally.

“Throughout our journey we’ve been focused on brewing a portfolio of both classic and groundbreaking beers and supporting innovation and camaraderie in the beer industry through collaboration and experimentation,” said Dick Cantwell, Elysian co-founder and Head Brewer. “By joining with Anheuser-Busch we’ll be able to take the next steps to bring that energy and commitment to a larger audience.”

The Anheuser-Busch purchase includes Elysian’s four Seattle branded pubs.

“Elysian’s story includes everything we look for in a partner,” said Andy Goeler, CEO, Craft, Anheuser-Busch. “The team has spent their careers brewing distinctive beers in the thriving West Coast beer community and building unique venues that celebrate beer. As the fastest growing brewer in Washington, their recipe is working. Elysian’s brands are an important addition to our high-end beer portfolio.”

Anheuser-Busch’s purchase of Elysian is expected to close by the end of the first quarter of 2015. Terms of the agreement were not disclosed.