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Corporate Office
4608 Indianola Ave
Columbus, Ohio 43214
614.784.8733

Regional Office
6824 Winterberry Lane
Bethesda, Maryland 20817
301.229.4432

Please contact us for more infomation

Click here to reach HDC through our GSA contract.

Banner - Clients

Clients

Hardlines Design Company has successfully worked with a variety of federal, state, and municipal organizations across the county. 85% of our clients hire us for additional projects, testifying to the high quality of our work.

national Park Service

National Park Service

  • Southeast Regional Office
  • Inter-Mountain Regional Office
  • Pacific Regional Office
  • National Capital Regional Office
U.S. Army Corps of Engineers

U.S. Army Corps of Engineers

  • Omaha District
  • Pittsburgh District
  • Louisville District
  • Wilmington District
  • Huntington District
  • Seattle District
U.S. Department of Agriculture

U.S. Department of Agriculture

  • Forest Service
  • Agricultural Research Service
U.S. Air Force

U.S. Air Force

  • Air Force Materiel Command
  • 88th Air Base Wing
  • Air Force Center for Environmental Excellence

NAVFACNaval Facilities Engineering Command

  • Atlantic Division
  • Midwest Division
  • Southern Division
  • Southwest Division

U.S. Department of Labor

  • Mine Safety and Health Administration

Ohio and Local GovernmentsOhio and Local Governments

  • Ohio Department of Transportation
  • Ohio Department of Alcohol and Drug Addiction Services
  • Ohio Department of Mental Retardation/Developmental Disabilities (MR/DD)
  • Franklin County ADAMH Board
  • City of Heath
  • City of Gambier
  • City of Columbus
  • City of Mount Vernon
  • Clinton County
Other Organizations

Other Organizations

  • CAPA
  • City of Columbus Public Schools
  • City of Wichita, Kansas
  • Columbus Children’s Theatre
  • Columbus Foundation
  • Columbus Regional Airport Authority
  • Delaware County
  • Eleutherian College, Inc.
  • Fairborn Performing Arts and Cultural Association
  • Friends of the Crooked River
  • Grange Mutual Insurance Casualty Company
  • Hocking College
  • Lincoln Theatre Association
  • Mansfield Reformatory Preservation Society
  • Maryland State Highway Administration
  • Metropolitan Park District of the Toledo Area
  • Nationwide Children’s Hospital
  • Nationwide Insurance
  • Ohio University
  • South Fountain Preservation, Inc.
  • The Ohio Historical Society
  • The Ohio State University
  • Woodward Development Corporation
  • YWCA