Partners Jason F. McLennan, Dale R. Duncan and Thomas J. Knittel think life is about give and take. That’s why they are giving up to 20% of McLennan Design’s profits to the green architect’s fledgling charitable arm, the Green Warrior Society. GWS provides either free or discounted design services to other charitable groups in need of better buildings for those they serve.

The three green warriors, reunited at McLennan Design after working together at BNIM Architects more than a decade ago, are beckoning other construction industry firms to join the GWS, which is on course to receive nonprofit status. “We are trying to push for high levels of sustainability and healthy buildings for those who need low operating costs,” says McLennan, CEO and design partner of the Bainbridge Island, Wash., design firm.

Managing partner Duncan, design partner Knittel and McLennan are setting an example by designing several projects. Among them is the William Jefferson Clinton Children’s Center, an orphanage in Haiti set to start construction this year. Expected to start construction next year, the Warriors’ Ascent Village, near Kansas City, Mo., is for military, veterans and first responders with post-traumatic stress disorder.