Ellon, Aberdeenshire-based craft beer company BrewDog on Thursday announced “draft” 2015 business results, reporting a 52% increase in annual turnover to £45 million.

The company said BrewDog is now the number one craft brewery in the UK, shipping the equivalent of 41 million bottles of craft beer in 2015.

BrewDog said its Punk IPA beer is now the best-selling craft beer in UK supermarkets.

The firm said its “Equity for Punks” crowd funding scheme is fueling its US expansion, funding a new brewery in Columbus, Ohio which will be one of the most technologically advanced craft breweries in the world when it opens in August 2016.

BrewDog said it will launch a further round of crowdfunding in May, specifically for US residents to invest, intending to replicate the effect that Equity for Punks has had on its UK business.

The company has pubs in many cities around the world including Brussels, Rome and Hong Kong and will open bars in 2016 in Amsterdam, Warsaw, York, Berlin, Homerton and Dalston.

BrewDog said its full results will be announced at the end of February.

“2015 was a great year for BrewDog in and of itself, but it was also about laying the foundations for the next five years of growth,” said BrewDog co-founder James Watt.

“We built an amazing new brewery in Ellon, increasing our capacity there five-fold, and we also started building an amazing new brewery in Columbus, Ohio.”