The Edinburgh-based business currently brews its beer at the Welpark brewery in Glasgow, where Tennent’s is produced, but wants to bring brewing in-house.
The Innis & Gunn Beer Bond is a four-year fixed term issue for investments starting at £500 and offers an interest rate of 7.25% gross interest per year.
Alternatively, investors can earn a 9% gross interest rate but have to spend it on beer at the brewer’s online store.
The firm is in negotiations to buy an unspecified piece of land in southeast Scotland to house a new brewery, bottling line and barrel storage facility, and the move would create 35 new jobs.
It comes after fellow Scottish brewer Brewdog launched a bid to raise £25 million in a crowdfunding exercise last week.
Innis & Gunn chief executive Dougal Sharp said: “We’ve always been fanatical about ingredients and brewing, and creating awesome, incredible-tasting beers, which push the boundaries even further.
“We believe that flavour is the most important thing, it’s what gets us all out of bed in the morning. We want drinkers to love our beer, to find tastes, flavour and textures that they’ve never experienced before.
“Our state-of-the-art brewery is where we will get even more creative and make epic new beers for craft beer drinkers to enjoy. The Beer Bond is all about inviting our fans and the craft beer community to invest to help us build this brewery - and we hope they’ll join us on this exciting new venture for Innis & Gunn.”