Ellon-base BrewDog is now valued at £1 billion after it received a £213 million investment from TSG Consumer Partners.
TSG is a San Francisco buyout firm which also owns US brewer Pabst and now owns 22% of the brewer.
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Founders James Watt and Martin Dickie, and other shareholders, could share up to £100 million of that investment between them.
About £100m will be invested in the ten-year-old company and about £113m will be spent buying shares from existing investors.
BrewDog now employs 800 staff and is opening BrewDog bars across the world and has begun building a brewery in Columbus, Ohio, as a launchpad for a bid to conquer America.
BrewDog posted a £7m pre-tax profit on £71m of revenues last year.
