From Open Energy Information

TinkerMill is located in Longmont, Colorado and is the largest makerspace in Colorado and the Rocky Mountain region with more than 600 paying members and more than 2,500 active members in their Meetup group. They are a 501(c)(3) non-profit public charity whose exceptionally talented membership provides a community workshop supporting each other and other community entities by learning, teaching, collaborating and creating. They are involved in Longmont's economic development efforts and encourage new product and business creation through mentoring and onsite office and workshop space. They advocate entrepreneurship, science, technology, engineering, art, and math in their community.