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Greenmodeling
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Web:  www.greenmodeling.com     Phone:  (202) 643-7512
Certifications: Energy Star Partner, HERS, BPI, LEED AP, Environments for Living, BSc Environmental Engineering, and more.
Regent, Inc.
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Phone:  703-378-3600
Certifications: Certified Green Professional (NAHB)
New Leaf Collaborative Arch & Design PLC
The Dietze Construction Group
New Leaf Collaborative Architecture & Design PLC
Advanced Global Construction
Dietze Construction Group Inc.
Duct Doctor USA of Northern Virginia
H2O Applied Technologies
Booz Allen Hamilton
GeoConcepts Engineering
Gearhart Construction Services, LLC
HVS Compass Interior Design
International Code Council
Dietze Construction Group, Inc.
G.W. Hastings Contracting, Inc.
Dietze Construction Group
KETTLER
Metro Earthworks