The brewery set a target of £25 million in its latest Equity For Punks expansion scheme, including plans to expand facilities, open more bars and a craft beer hotel, and further operations in the US.
In 2013, it raised £4.25 million in six months and the current fundraising drive will remain open as they seek to make a new crowdfunding record.
More than 525,000 shares in the brewery have been made available, for a minimum investment of £95 for two shares.
Co-founders James Watt and Martin Dickie set up BrewDog when they were 24 in response to the ‘’stuffy ales’’ which dominated the UK drinks market.
Seven years on, the company now employs more than 350 people and has bars in Sao Paulo, Tokyo and Gothenburg.
It was recently named the UK’s fastest growing food and drink company by the Sunday Times Fast Track 100.