The top civil enginnering consulting companies I have found which are
based in the USA, according to number of staff, are:
1) ARCADIS G&M
1794 staff / 8.500 results-orientated people
http://www.arcadis-us.com
2) CH2M HILL Companies Ltd
11964 employees located on six continents.
http://www.ch2m.com
3) Knight Piésold Services Inc
700 employees with offices in over 20 countries and project-specific
experience in more than 100 countries.
http://www.knightpiesold.com
4) The Stanley Group
Total: 652: - ENGINEERS: Chemical 5, Civil 46, Electrical 40,
Geotechnical 2, Mechanical 42, Structural 34, Transportation 48, Other
4, OTHER SPECIALISTS: Architects 8, Computer specialists 13,
Construction managers 11, Economists 4, Environmental specialists 11,
Estimators 4, Geologists 1, Hydrologists 22, Land surveyors 52,
Landscape architects 4, Planners 3, Sanitary engineers 20, Other 1,
SUPPORT: Administrative and support 127, Assistant engineers 63
http://www.stanleygroup.com
5) TAMS Consultants Inc
Total 450: - ENGINEERS: Chemical 3, Civil 68, Electrical 9,
Geotechnical 14, Mechanical 11, Structural 45, Transportation 14,
OTHER SPECIALISTS: Architects 44, Computer specialists 8, Economists
2, Environmental specialists 27, Estimators 2, Geologists 5,
Hydrologists 3, Inspectors 15, Planners 12, Sanitary engineers 2,
Specification writers 6, Other 3, SUPPORT: Administrative and support
58, Assistant engineers 32
http://www.tamsconsultants.com
6) Wickwire Gavin PC
Total 71. Construction Attorneys 38. Engineer/Attorneys 4. Support and
Administrative staff 33.
http://www.wickwire.com
7) The Nielsen-Wurster Group Inc
23 Key Personnel
http://www.nielsen-wurster.com
I sourced this information by searching the FIDIC International
Directory of Consulting Engineers
http://www.fidicdirect.com
i hope this information helps |