Green Flash Brewing Co has acquired fellow Californian craft brewer Alpine Beer Co for an undisclosed sum. 

In a joint-announcement this week, the San Diegeo-based companies said the tie-up will allow them to “share resources, knowledge and experience”. Alpine will remain independently operated, with its president and brewmaster Pat McIlhenney staying in his role. 

McIlhenney told US beer industry website BrewBround that he and his partner, Val McIlhenney, will receive cash and equity in Green Flash as part of the deal. 

The tie-up is expected to allow Alpine to release its beers beyond California, across the US. 

Alpine, which set up as a brewery in 2002, currently employees 20 people. 

The companies have had a relationship for the past year as Green Flash has been brewing three of Alpine's brands - Nelson, Hoppy Birthday and Duet - at its facility. 

“There are many benefits in teaming up with Green Flash as a partner,” said McIlhenney. “Not only are they committed to producing high-quality beer, the company culture and mom-and-pop roots of Green Flash are very similar to our own.”

Mike Hinkley, one of Green Flash's founders, said he hoped the tie-up would lead it to build a new production facility in Alpine. "Maybe we will even brew some Green Flash ale in Alpine,” he added. 

Last month, Green Flash announced plans to build a new brewing facility on the US east coast, in Virginia Beach, Virginia. The firm also plans to launch its flagship West Coast IPA in Europe