Wells & Associates
- Traffic engineering and transportation planning consultants in transit, parking, traffic signal, and pedestrian access design based in Virginia and Maryland.
- http://www.mjwells.com/

ESRA Consulting Corporation
- International services in transportation engineering, planning, assessments, and drivers license test systems. Located in Florida.
- http://www.esracorp.com

Turvey Consultancy Limited
- Transportation and environmental consultancy services throughout the UK and overseas. Located in Welton, Lincolnshire.
- http://turveyconsultancy.co.uk

Ground Engineering Consultants Inc
- Provides complete pavement analysis and design management services for projects ranging from major interstate highways and airports to parking lots.
- http://www.groundeng.com

KMB Aviation International
- Provides project management, consulting, and owners representative services to airports, and private, municipal aviation facilities in Ontario, Canada.
- http://www.kmbinternational.ca

PFA Consulting
- An engineering consultancy specialising in serving the planning and development sectors, based in Swindon, United Kingdom.
- http://www.pfaconsulting.co.uk

Ralph Whitehead Associates
- A consulting engineering firm providing practical engineering solutions in civil and transportation engineering, based in Charlotte, NC.
- http://www.rwhitehead.com

Kneeshaw Engineering Ltd.
- Offering customized transportation engineering consulting, BC Auditor benefit/cost software, and other useful information for transportation professionals based in BC.
- http://kneeshaw-eng.com/

CEC- Columbus Engineering Consultants, Inc.
- Specializing in transportation-related fields of civil engineering, located in Columbus, OH.
- http://ceceng.net

Tinter Associates, Inc.
- Consulting transportation engineers specializing in traffic design, traffic studies, concurrency evaluations, and condemnation analyses.
- http://www.tinter.com

BMW Group Consulting
- Consulting and business help on aggregate, asphalt, portland stone, and concrete, covering organization and management, sales, geology, safety and government regulations.
- http://www.bmwgroupconstmat.com

Alternate Street Design, PA
- Concentrating on the design of subdivisions and the street system, with a focus on modern, roundabout design in Florida.
- http://www.roundabouts.net

ICT - Intercontinental Consultants and Technocrats Pvt., Ltd.
- An international consulting organisation specialising in highways, structures, airports, urban and rural infrastructure development, water supply, traffic and transportation studies, ports and tourism projects based in India.
- http://www.ictonline.com/

Grove Miller Engineering, Inc.
- Providing professional traffic engineering services to governmental and private clients throughout Central Pennsylvania, specializing in traffic signal design, traffic impact studies, and transportation planning.
- http://www.gmetraffic.com

Gozar Rah Consulting Engineers
- Specializing in the fields of transportation and traffic engineering, highway and airport planning and design, and engineering management located in Tehran.
- http://www.gozarrah.com

Deshazo, Tang & Associates, Inc.
- Transportation engineering firm providing quality traffic consulting, transportation planning, engineering, parking analysis, planning, and design based in Texas.
- http://www.deshazotang.com

Creative Transportation Solutions (CTS)
- A leading provider of traffic engineering and transportation planning consulting services in British Columbia offering comprehensive turn-key solutions for all traffic engineering challenges.
- http://www.cts-bc.com