Andy Eason Diamond Knot Brewing Company is a brewery and operator of alehouses in Mukilteo, Washington, USA.

The two handled all production and distribution in the evenings over the first four years out of subleased space in an alehouse.

[2] According to The Seattle Times, the brewery is "widely regarded as producing some of the best, most innovative beers in the region".

The two met at a beer club organized by Boeing employees in Everett, Washington.

[7] Another aerospace engineer, Andrew Ong, co-founded 2Brothers Brewery near Melbourne, Australia, after receiving hands-on experience at Diamond Knot.