- All in Maryland
- Anne Arundel County - Govt. Purchasing Division
- Anne Arundel County - Public Schools AACPS
- Auted, Inc.
- Baltimore City Public Schools
- Baltimore County Public Schools
- Board of Education of Wicomico County
- Capitol Heights Police Department
- Carroll County - Government (MD)
- Carroll County - Public Schools (MD)
- Cecil County
- Charles County - Government (MD)
- Charles County - Public Schools (MD)
- City Of Aberdeen
- City of Baltimore Bureau of Procurement
- City of Bowie
- City of Brunswick (MD)
- City of College Park
- City of Frederick
- City of Hagerstown
- City of Havre de Grace
- City of Laurel DPW
- City of Rockville (MD)
- City of Salisbury
- City of Westminster (MD)
- Dorchester County Sheriff's Office
- Family Outreach
- Family Out Reach
- Fort Washington Learning Center
- Frederick Community College (MD)
- Frederick County Procurement & Contracting Dept (MD)
- Frederick County Public Schools
- Habitat for Humanity of the Chesapeake ReStore
- Harford County (MD)
- Harford County Public Schools
- Housing Opportunities Commission of Montgomery County
- Howard Community College
- Howard County Office of Procurement & Contract Administration
- Howard County Public School System
- Jewish Council for the Aging - (WMCOG)
- Kent County Public School
- Maryland Association of Counties (MACo)
- Maryland Correctional Enterprises
- Maryland Science Center
- Montgomery County Government
- Montgomery County Public Schools (MD)
- Mount Rainier Police Department
- Patuxent Habitat for Humanity
- Prince George's County Government
- Prince Georges County Public Schools
- Queen Anne's County Public Schools (MD)
- Somerset County Public Schools
- State of Maryland
- St. Mary's County Metropolitan Commission
- St. Mary's County Metropolitan Commission
- The Maryland-National Capital Park & Planning Commission
- Town of Capitol Heights
- Town of Emmitsburg
- Town of Garrett Park, Maryland
- Town of Grantsville
- Town of Hampstead (MD)
- Town of La Plata (MD)
- Town of Manchester (MD)
- Town of Queenstown
- Town of Sykesville
- University of Maryland - Terrapin Trader
- Washington Metro Transit Auth(WMATA)
