With more than 360 LEED-accredited professionals on our team and 500-plus sustainably certified projects completed, we are one of the nation’s top-ranked green builders.
Our commitment to being a responsible builder doesn’t end at the jobsite. Our professionals push the envelope, deploying new strategies to reduce the impact of our business operations and promote the health and well-being of our people.
By The Numbers
Green Building
Clients count on us to deliver valuable market insights, evaluate materials options, assess carbon intensity alongside cost, and advise on optimizing building performance.
We leverage deep experience and understanding of relevant certifications and codes to deliver innovative solutions that achieve key green building goals:
- Balance short- and long-term costs
- Maximize building efficiency
- Lower embodied carbon
- Create healthier places to live and work

Building Decarbonization
Clark’s sustainability professionals are focused on reducing embodied carbon attributable to the built environment – from a project’s inception through its useful life.
Our design management professionals work collaboratively with clients to ensure their buildings are designed and constructed to maximize building performance and minimize operational carbon.

Environmental Stewardship
We work closely with clients, trade contractors, and industry organizations to raise awareness of new technologies, regulations, and industry trends – and provide technical assistance and training.
Our sustainability committee drives strategic sustainable initiatives and promotes awareness. We collaborate with leading organizations, such as the US Green Building Council and the Institute for Market Transformation, to inform how buildings are designed, built, and operated.

NEWS
Reducing the Carbon Footprint of Amazon's Arlington Headquarters

BLOG POST
Building a Greener Future Through Industry Education
