Representative clients include numerous municipalities, agencies, institutions, and private developers, including:

• National Academy of Sciences, Transportation Research Board, National Cooperative Research Programs
• Federal Highway, Transit, Railroad, and Aviation Administrations
• National Park Service
• National Transit Institute-Rutgers
• Organizations such as the American Public Transportation Association (APTA) and the American Association of State Highway Transportation Officials (AASHTO)
• Departments of Transportation in Connecticut, Delaware, Georgia, Illinois, Iowa, Maine, Maryland, Massachusetts, Michigan, Missouri, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, and Washington
• Public transit agencies in Massachusetts, Connecticut, New York, New Jersey, Pennsylvania, and Texas
• New York State Thruway Authority (NYSTA)
• Port Authority of NY & NJ
• Airports serving New York City, Boston, New Haven, Providence, Baltimore, and Hartford/Springfield
• Boston Redevelopment Authority, Transportation Department, and Department of Public Works 
• Metropolitan Planning Organizations (MPOs) throughout the U.S., including in New York, New Jersey, Connecticut, St. Louis, and Washington, D.C.
• Dana Hall School
• I-95 Corridor Coalition
• Museum of Fine Arts, Boston
• Harvard University
• Princeton University
• Simmons College
• Middlebury College
• Allston Brighton Community Development Corporation
• New York City Economic Development Corporation
• Urban Edge Housing Corporation
• Dorchester Bay Economic Development Corporation
• Boston Properties
• Equity Office Properties Trust
• The Gale Company
• Skanska Construction
• Suffolk Construction Company

• Citation for Adaptive Reuse and New Construction for Channel Center, designed by Bruner/Cott & Associates.  Boston Society of Architects. 2006.
  
• Annual Preservation Award to the project team led by Trinity Financial Group for The Foley, Phase I of the redevelopment of the Boston Consumptives Hospital/Boston Sanatorium into elderly housing and assisted living. Massachusetts Historical Commission, 2004.
  
• Woman of the Year Award for HSH Principal Kathleen E. Stein. Women’s Transportation Seminar (national), 2003.
  
• Woman of the Year Award for HSH Principal Kathleen E. Stein. Women ’s Transportation Seminar, Boston Chapter, 2003.
  
• Leadership Award for HSH Co-founder and Principal Jane Howard. Patriots’ Trail Girl Scout Council, 2001.
  
• Employer of the Year Award. Women’s Transportation Seminar, Greater New York Chapter, 2001.
  
• Woman of the Year Award for HSH Associate Marilyn S. Gay. Women’s Transportation Seminar Greater New York Chapter, 2000.