- American Consulting Engineers, LLC
- AECOM
- Aircraft Owners & Pilots Association
- Anderson & Kreiger, LLP
- Bayshore Pointe Nursing & Rehab Center
- C&S Companies
- Cardno TBE Group
- CDM
- Cella Molnar & Associates, Inc.
- CH2M Hill, Inc.
- City of Atlanta
- City of Irwindale
- City of Lakeland
- Crawford, Murphy & Tilly, Inc.
- Coastal Engineering Associates, Inc.
- Coffman Associates
- CSSI, Inc.
- Delta Airport Consultants, Inc.
- Doug Herring & Associates
- DuPage Airport Authority
- Eagle Crest Energy Company
- ECMC Services, Inc.
- Edwards and Kelcey
- Environmental Science Associates, Inc.
- Federal Aviation Administration
- Florida Department of Transportation
- Criminal Crawford, Inc.
- Greater Orlando Aviation Authority
- Gresham, Smith & Partners, Inc.
- H.W. Lochner, Inc.
- Harris, Miller, Miller & Hanson Inc.
- HDR Engineering, Inc.
- Hernando County MPO
- Hillsborough County Aviation Authority
- HNTB, Inc.
- Inwood Consulting Engineers, Inc.
- Jacobs Consultancy/Leigh Fisher, Inc.
- Jason's Hauling, Inc.
- KB Home
- King Engineering Associates, Inc.
- Kisinger Campo & Associates Corp.
- Los Angeles World Airports
- LPA Group Incorporated
- Marin County
- Maryland Department of Transportation
- Massachusetts Port Authority
- Medallion Home, Inc
- Miller EC
- Neal Communities
- Oslo Lufthavn AS (Oslo Airport)
- Page, Mrachek, Fitzeralk &
Rose, P.A.
- Palm Beach County
- Passero Associates
- Penn Cinema
- Pierce Goodwin Alexander & Linville
- Pitman Hartenstein &
Associates, Inc.
- Professional Land Development, LLC
- Point Environmental
- Port of Portland
- Port of Richmond
- Port of Stockton
- Post, Buckley, Schuh & Jernigan, Inc.
- Professional Land
Development, LLC
- Project Performance Corporation
- Reynolds, Smith & Hills
- Rhode Island Airport Corporation
- Riva Trace, LLC
- Riverwood, LLC
- San Diego County Regional Airport Authority
- San Joaquin Count
- Sandia National Laboratories
- Santa Clara Valley Water District
- Schenkel & Schultz, Inc.
- San Diego International Airport
- Sonoma County
- Southern LTC
- The Smart Associates, Environmental Consultants, Inc.
- T.Y. Lin International
- Taurus Industrial Development, LLC
- Tindale Oliver & Associates, Inc.
- Torti Galls and Partners, Inc.
- Transportation Research Board
- TranSystem
- URS Corporation
- Vanasse Hangen Brustlin, Inc.
- Waste Management, Inc.
- Wilson Miller, Inc.