The move is in response to growing consumer demand for US craft beers.
The company will focus of four of Crazy Mountain’s brands: the Amber Ale, Creedence Pilsner, Livin’ Pale Ale, and Hookiebobb IPA. They have abvs of 4.9%, 5.25%, 5.2% and 6.7% respectively.
All except Hookiebobb IPA will also be available on draught in the on-trade.
Crazy Mountain is also set to introduce a 750ml bottle to its range specifically for the UK market.
The four beers will be unveiled to the public at Craft Beer Rising 2016, which takes place at London’s Old Truman Brewery on February 26 and 27.
The festival, now in its fourth year, will feature some 380 beers from 150 leading breweries.
In August, Crazy Mountain acquired the Denver Brewery vacated by Breckenridge prior to its acquistion by AB InBev.
The acquisition made it the 39th largest brewer in the US.
Mark Smith, founder of The American Craft Beer Company, said: “Having been involved in the beer industry for the last 25 years, craft beers, and specifically US craft beers offer the most excitement to consumers and retailers.
“Crazy Mountain have a great beer pedigree and when you weave this together with their background of being from the Rocky Mountains of the USA then we have a great story to tell.
“We are thrilled to be working with Crazy Mountain Brewing Company and their beers are simply exceptional.”
Kevin Selvy, chief executive of Crazy Mountain, said: “The American Craft Beer Company have a unique perspective on our beers and the role they can play in the UK market.
“We can’t wait to hang out in a few bars and enjoy our beers.”