Hopsters, with a valuation of $4 million, is raising funds on Wefunder. The brewery is located in Newton, MA, and offers a brew-your-own-beer experience. It has opened two locations since 2013, including a 6,000 square foot space in the Seaport District of Boston. Hopsters has an average gross margin of 75% across both locations and serves its own beer through its own taps. Lee Cooper and Karen Cooper founded Hopsters in April 2013. The current crowdfunding campaign has a minimum target of $300,000 and a maximum target of $1,070,000. The campaign proceeds will be used for brewing and restaurant equipment, construction of new locations, and working capital.