www.gostructural.com 2010 July Structural Engineering & Design 21

Firm Annual No. of North American Headquarters Revenue employees Leadership Website

HNTB Los Angeles, CA $800 Million 3,700 Robert Stromsted, CEo www.hntb.com

Dewberry Fairfax, VA $353 Million 1,800 Donald E. Stone, Jr., CEo www.dewberry.com

Arup gregory hodkinson, New york, Ny $203 Million 878 Chairman of Arup in the Americas www.arup.com

T.Y. Lin International New york, Ny $194 Million 1,400 Alvaro J. Piedrahita, President and CEo www.tylin.com

KPFF Seattle, WA $110.7 Million 828 Jefferson Asher, President www.kpff.com

Thornton Tomasetti New york, Ny $103.1 Million 550 Daniel A. Cuoco, President and CEo www.thorntontomasetti.com

Wiss, Janney, Elstner Associates Inc. William J. Nugent, Northbrook, iL $91.2 Million 500 President and Senior Principal www.wje.com

Simpson Gumpertz & Heger Inc. Waltham, MA $82.9 Million 425 glenn Bell, CEo www.sgh.com

Walter P Moore houston, TX $53.9 Million 308 Raymond F. Messer, President and CEo www.walterpmoore.com

Degenkolb Engineers San Francisco, CA $29 Million 154 Chris D. Poland, CEo and Chairman www.degenkolb.com

Collins Engineers, Inc Chicago, iL $29 Million 166 Thomas J. Collins, President www.collinsengr.com

Magnusson Klemecic Associates Inc. Seattle, WA $23.2 Million 109 John Magnusson, CEo www.mka.com

Jaster-Quintanilla Austin, TX $16.1 Million 128 gary W. Jaster, Principal www.jqeng.com

Wallace Engineering Structural Consultants Inc. Tulsa, oK $14.8 Million 140 Tom Wallace, President and CEo www.wallacesc.com

KL&A, Inc. golden, Co $9.1 Million 38 gregory Kingsley, President and CEo www.klaa.com

Timothy Haahs & Associates, Inc. Blue Bell, PA $8.5 Million 42 Timothy h. haahs, President www.timhaahs.com

PCS Structural Solutions Seattle, WA $7.3 Million 39 Craig Stauffer, President www.pcs-structural.com

Raths, Raths & Johnson, Inc. Willowbrook, iL $6.1 Million 28 otto C. guedelhoefer, Senior Principal www.rrj.com

Steven Schaefer Associates, Inc. Cincinnati, oh $5.5 Million 50 James R. Miller, President www.ssastructural.com

Finley Engineering Group, Inc. Tallahassee, FL $5 Million 34 Craig Finley, Jr., Managing Principal www.finleyengineeringgroup.com

Ruby+Associates, Inc. Farmington hills, Mi $3.7 Million 31 Jay Ruby, President and CEo www.rubyusa.com

Clark Western Design Roswell, gA $2.2 Million 21 Robert Warr, Director of Design Services www.clarkwesterndesign.com

BHB Consulting Engineers, P.C. Salt Lake City, uT $2.1 Million 22 Don W. Barker, President www.bhbengineers.com

Mulhern & Kulp Structural Engeering Inc. Ambler, PA $1.7 Million 12 Joe Kulp, Principal www.mulhernkulp.com

Integrity Structural Corp. houston, TX $1.1 Million 11 Jason A. Laymon, Principal www.integritystructural.com

TOP STRUCTURAL ENGINEERING FIRMS 2010

22 Structural Engineering & Design July 2010 www.gostructural.com

EXCLUSIVE

Firm Annual No. of North American Headquarters Revenue employees Leadership Website

Gensler Atlanta, gA $550 Million 2,000 Art gensler, Chairman www.gensler.com

HOK Atlanta, gA $473 Million 1,800 Patrick MacLeamy, CEo www.hok.com

SmithGroup Inc. Detroit, Mi $166.3 Million 800 Carl D. Roehling, President and CEo www.smithgroup.com

Kohn Pedersen Fox Associates PC New york, Ny $123.6 Million 500 Paul Katz, President www.kpf.com

Perkins Eastman New york, Ny $110 Million 560 Bradford Perkins, Chairman and CEo www.perkinseastman.com

Fentress Architects Curtis Fentress, President Denver, Co $103.9 Million 150 and Principal-in-Charge of Design www.fentressarchitects.com

PageSoutherlandPage houston, TX $98.5 Million 435 John Cryer iii, Principal www.pspaec.com

Hammel Green and Abrahamson Inc. Minneapolis, MN $97.7 Million 538 David Avchen, Chairman and CEo www.hga.com

Corgan Associates Inc. Dallas, TX $83.8 Million 300 Robert Morris, President and CEo www.corgan.com

HMC Architects Los Angeles, CA $83.4 Million 397 Randy Peterson, President and CEo www.hmcarchitects.com

EwingCole Philadelphia, PA $68 Million 350 John gerbner, President and CEo www.ewingcole.com

KMD Architects San Francisco, CA $67 Million 234 Roy Latka, President and CEo www.kmdarchitects.com

EYP Architecture & Engineering Albany, Ny $65.1 Million 325 Tom Birdsey, CEo www.eypaedesign.com

Payette Boston, MA $51.9 Million 135 James h. Collins, Jr., President www.payette.com

MulvannyG2 Architecture Bellevue, WA $50.6 Million 315 Mitch Smith, Senior Partner www.mulvannyg2.com

LS3P Associates LTD. Charleston, SC $44.6 Million 190 Thompson E. Penney, President and CEo www.ls3p.com

Perkowitz+Ruth Architects Long Beach, CA $40.2 Million 190 Simon Perkowitz, President and CEo www.prarchitects.com

WATG (Wimberly Allison Tong & Goo) irvine, CA $39.6 Million 296 Mike Seyle, CEo www.watg.com

NTD Architecture San Diego, CA $37.6 Million 140 Wayne hunter, Partner www.ntd.com

Lord Aeck & Sargent Atlanta, gA $37 Million 144 Joseph greco, AiA, LEED AP, President www.lordaecksargent.com

Cuningham Group Architecture PA Minneapolis, MN $36.4 Million 148 Timothy Dufault, CEo www.cuningham.com

gkkworks irvine, CA $36.2 Million 340 Praful M. Kulkarni, President and CEo www.gkkworks.com

H&A Architects & Engineers glen Allen, VA $33.8 Million 241 Michael Matthews, President and CEo www.haengineers.com

Dekker/Perich/Sabatini Albuquerque, NM $27.5 Million 160 Steven J. Perich, President www.dpsdesign.org

Crabtree, Rohrbaugh & Associates Mechanicsburg, PA $25.8 Million 95 Thomas C. Crabtree, President www.cra-architects.com

TOP ARCHITECTURE FIRMS 2010