Positive Energy Works - Capitol Heights, Maryland

Owl Corporation - Dundalk, Maryland

BWS Biomedical Waste Services - Baltimore, Maryland

We Can Remove It - Baltimore, Maryland

Blue Plains Advanced WWTP - Washington, District of Columbia

Casella Waste Systems - Gaithersburg, Maryland

Waste Alternatives - Dundalk, Maryland

Western Acceptance Facility - Halethorpe, Maryland

Owl Metals Inc - Dundalk, Maryland

United States Postal Service - Upper Marlboro, Maryland