Civil

Accurate Group, Inc.
Lincolnwood, (847) 329-9500, www.accurategroupinc.com

Alfred Benesch & Co.
Chicago, (312) 565-0450, www.benesch.com

Allen Henderson & Associates, Inc.
Springfield, (217) 544-8033

American Consulting Engineers, P.L.C.
Chicago, (773) 314-1200, rlpeck@ace-plc.com, www.ace-plc.com
Branch Office: Springfield, (217) 546-6877

American Surveying & Engineering, P.C.
Chicago (773) 444-0800, c.fidis@americansurvey.com, www.americansurvey.com
Branch Offices: Aurora 630-897-4105 Dixon 815-288-6231

Atwell-Hicks, Inc.
Naperville, (630) 577-0800, sdanna@atwell-hicks.com, www.atwell-Hicks.com

Bainbridge, Gee, Milanski & Associates, Inc.
Decatur, (217) 423-8600

Baxter & Woodman, Inc.
Crystal Lake, (815) 459-1260, www.baxterwoodman.com
Branch Offices:
Mokena, (708) 478-2090, baxwood@mc.net
Dekalb, (815) 787-3111
Grayslake, (847) 223-5088

Beam, Longest & Neff, L.L.C.
Schaumburg, (847) 706-9100, www.B-L-N.com

Benton & Associates, Inc.
Jacksonville, (217) 245-4146, www.bentonassociates.com

Bernardin, Lochmueller & Associates, Inc.
Charleston, (217) 348-1300, www.blainc.com

Berns, Clancy and Associates, P.C.
Urbana, (217) 384-1144, bca@shout.net

Berutti & Associates, Inc.
Belleville, (618) 235-0500, www.beruttiassociatesinc.com

Bleck Engineering Co.
Lake Forest, (847) 295-5200, pbleck@bleckeng.com, www.bleckeng.com

Blotevogel Associates, Inc.
Glen Carbon, (618) 656-4166

Bollinger, Lach & Associates, Inc.
Oak Brook, (630) 990-1385, www.bollingerlach.com

Bonestroo
Libertyville, (847) 816-1631, tom.palansky@bonestroo.com, www.bonestroo.com

Bono Consulting, Inc.
Civil Engineers
Park Ridge, (847) 791-0579

Bowman, Barrett & Associates, Inc.
Chicago, (312) 228-0100, www.bbandainc.com

Brighton Engineering Co.
Arlington Heights, (847) 640-0840, www.netcom.com/`brtnengr/home.html

Bruner, Cooper & Zuck, Inc.
Galesburg, (309)343-9282,
www.bczengineering.com

Brunzell Associates, Ltd.
Skokie, (847) 933-1409

Carter & Burgess, Inc.
Warrenville, (630) 393-7790, chicagoinfo@c-b.com, www.c-b.com

CDM
Chicago, (312) 346-5000, www.cdm.com

CH2M Hill
Chicago, (773) 693-3809, www.ch2m.com

Christian-Roge & Associates, Inc.
Chicago, (312) 372-2023

Ciorba Group, Inc.
Chicago, (773) 775-4009, gheimsoth@ciorba.com

Civil Design Group, Inc.
Naperville, (630) 577-1500
www.civildesigngroupinc.com

Civiltech Engineering, Inc.
Itasca, (630) 773-3900, mhine@civiltechinc.com, www.civiltechinc.com

Clarida Engineering Co.
Marion, (618) 993-6411, www.claridaeng.com

C.M. Lavoie and Associates, Inc.
Downers Grove, (630) 434-2780, www.cmlavoie.com

Coombe-Bloxdorf, P.C.
Springfield, (217) 544-8477

Crawford, Murphy & Tilly, Inc.
Springfield, (217) 787-8050, cbaxter@cmtengr.com, www.cmtengr.com
Branch Offices:
Aurora, (630) 820-1022, bwelker@cmtengr.com
Rockford, (815) 963-9375, jplapp@cmtengr.com
East Alton, (309) 633-0566
Peoria
Chicago

Cummins Engineering Corp.
Springfield, (217) 726-8450, cec@insightbb.com

Curl & Associates, Inc.
Centralia, (618) 533-4149

Daily & Associates Engineers, Inc.
Champaign, (217) 352-4169, www.dailyengineers.com
Branch Office: Peoria, (309) 691-5300

D.B. Sterlin Consultants, Inc.
Chicago, (312) 857-1006, www.dbsterlin.com

Design Consulting Engineers
Chicago, (773) 283-8500, dceint@aol.com, www.dceint.com

DLZ Illinois, Inc.
Chicago, (312) 214-3161, kschmiegel@dlz.com, www.dlz.com

DMJM
Chicago, (312) 321-6100, peter.josefchak@dmjmharris.com, www.dmjm.com

Donohue & Associates, Inc.
Champaign, (217) 352-9990, www.donohue-associates.com

Dynasty Group, Inc.
Chicago, (312) 704-1970, www.dynastygroup.com

Earth Tech
Oak Brook, (630) 574-2006, www.earthtech.com
Branch Offices:
Chicago, (312) 902-7100
O'Fallon, (618) 624-2628

Eddy-Resner Engineering, Inc.
Hanover Park, (630) 289-4029, www.vcimall.net/eddy-resnel/index.htm

Engineering Enterprises, Inc.
Sugar Grove, (630) 466-9350, mailbox@eeiweb.com, www.eeiweb.com

Engineering Resource Associates, Inc.
Warrenville, (630) 393-3060, era@eraconsultants.com, www.eraconsultants.com
Branch offices:
Geneva, (630) 262-8689
Chicago, (312) 683-0110

Engineering Design Source, Inc.
O'Fallon, (618) 628-0850

Frauenhoffer and Associates, P.C.
Champaign, (217) 351-6268

Gewalt-Hamilton Associates Inc.
Vernon Hills, (847) 478-9700

Graef, Anhalt, Schloemer & Associates, Inc.
Chicago, (773) 399-0112, ronald.jankauskas@gasai.com, www.gasai.com

Greeley and Hansen
Chicago, (312) 558-9000, www.greeley-hansen.com

Greene & Bradford, Inc.
Springfield, (217) 793-8844, www.greeneandbradford.com

Greengard, Inc.
Lincolnshire, (847) 634-3883, www.greengardine.com

Hampton, Lenzini and Renwick, Inc.
Elgin, (847) 697-6700
Branch Offices:
Springfield, (217) 546-3400
Carbondale, (618) 457-1116

Heneghan & Associates, P.C.
Jerseyville, (618) 498-6418, www.haengr.com
Branch Offices:
Centralia, (618) 533-6625, centralia@heneghanassoc.com
Effingham, (217) 347-7241

Henry, Meisenheimer & Gende, Inc.
Carlyle, (618) 594-3711, gfulton@hmgengineers.com, www.HMGengineers.com
Branch Offices:
Libertyville, (847) 362-5959
Elgin, (847) 742-5959

Hoelscher Engineering, P.C.
Fairview Heights, (618) 624-8610

Homer L. Chastain & Associates, L.L.P.
Decatur, (217) 422-8544, www.hlcllp.com
Branch Office: Chicago, (773) 714-0050

Hutchison Engineering, Inc.
Jacksonville, (217) 245-7164, ghutchison@hutchisoneng.com
Branch Office: Joliet, (815) 722-5272

H.W. Lochner, Inc.
Chicago, (312) 372-7346, hlochner@hwlochner.com, www.hwlochner.com

Infrastructure Engineering, Inc.
Chicago, (312) 425-9560, msutton@infrastructure-eng.com,
www.infrastructure-eng.com

Jacob & Hefner Associates, P.C.
Glen Ellyn, (630) 942-9000, www.jacobandhefner.com
Branch Office: Joliet, (815) 730-6080, dmalinowski@jacobandhefner.com

James E. & Judith N. Brown Corp.
Libertyville, (847) 875-6319, landecon@ameritech.net

J.E. Manzi & Associates, Inc.
Park Ridge, (847) 699-5800

JKL Consulting Civil Engineers, Ltd.
Mount Prospect, (847) 870-9742

Jorgensen & Associates, Inc.
Lake Villa, (847) 356-3371, cjorgensen@earthlink.net

Kam Engineering, Inc.
Elgin, (847) 931-4211

Klingner & Associates, P. C.
Quincy, (217) 223-3670, mdk@mail.klingner.com, www.klingner.com

Knight Infrastructure
Chicago, (312) 577-3300, www.knightinfrastructure.com

Kowalenko & Bilotti, Inc.
Chicago, (312) 853-0500, abilotti@kbconsulting.net, www.kbconsulting.net

Landecon Inc.
Libertyville, (847) 549-7882

Lewis, Yockey & Brown, Inc.
Bloomington, (309) 829-2552, duane@lybinc.com
Branch Offices:
LeRoy, (309) 962-8151
El Paso, (309) 527-2552

Lin Engineering, Ltd.
Chatham, (217) 483-4168, info@lineng.com, www.LinEng.com

Lonco, Inc.
Naperville, (630) 577-9100, wepp@lonco.com, www.lonco.com

Manhard Consulting, Ltd.
Vernon Hills, (847) 634-5550, info@manhard.com, www.manhard.com
Branch Offices:
Lombard, (630) 691-8500
See our other listing in Colorado

Maurer-Stutz, Inc.
Peoria, (309) 693-7615, dlmaurer@maurerstutzinc.com, www.maurerstutzinc.com

McClure Engineering Associates, Inc.
East Moline, (309) 792-9305, mcclureqc@attglobal.net, www.mcclureengineering.com
Branch Offices:
Waukegan, (847) 336-7100
Macomb, (309) 833-4594, mclurema@macomb.com
Rockford, (815) 398-2332
Ottawa, (815) 433-2080
East Peoria, (309) 699-5000

McDonough Associates, Inc.
Chicago, (312) 946-8600, jbulut@maiengr.com, www.maiengr.com

Metcalf & Eddy
Chicago, (773) 756-2400, craig.brunner@m-e.com, www.m-e.com

Metro Design Associates
Schaumburg, (847) 619-1333

Midwest Technical Consultants, Inc.
Naperville, (630) 505-0101, bruce@midwtech.com, www.midwtech.com

Missman, Stanley & Associates, P.C.
Rock Island, (309) 788-7644, kevink@msa-pc.com, www.msa-pc.com
Branch Office: Rockford, (815) 965-6400

MKB Consulting, Inc.
Batavia, (630) 879-8619

Morcom, N.V., Inc.
Chicago, (312) 842-3100, www.morcomnv.com

Northern Illinois Survey Co.
Waukegan, (847) 662-4568

Northwestern Engineering Consultants, P.C.
Buffalo Grove, (847) 520-8410

Oates Associates, Inc.
Collinsville, (618) 345-2200, www.oatesassoc.com

Pavia-Marting & Co.
Roselle, (630) 529-8000, www.pavia-marting.com

Pearson, Brown & Associates, Inc.
Libertyville, (847) 367-6707, pba@ync.net

Peco & Associates, Inc.
Chicago, (773) 586-0600

Peter F. Olesen and Associates, Inc.
Mount Prospect, (847) 253-1515, www.olesen.com

Poepping, Stone, Bach & Associates, Inc.
Quincy, (217) 223-4605, psba@psba.com, www.psba.com

Postl-Yore and Associates, Inc.
Arlington Heights, (847) 640-1010, www.postl-yore.com

Reiter & Associates
New Lenox, (815) 462-4100

Rempe-Sharpe and Associates, Inc.
Geneva, (630) 232-0827, rsaengr.com

Rhutasel and Associates, Inc.
Freeburg, (618) 539-3178
Branch Office: Centralia, (618) 532-1992

RJN Group, Inc.
Wheaton, (630) 682-4700, www.rjn.com
Branch Office: Collinsville, (618) 344-2971

Robert E. Hamilton Consulting Engineers, P.C.
Joliet, (815) 730-3444

Robert H. Anderson & Associates, Inc.
St. Charles, (630) 584-3530

Rogina & Associates, Ltd.
Joliet, (815) 729-0777, rrogina@rogina.com, www.rogina.com

Ruettiger, Tonelli & Associates, Inc.
Joliet, (815) 744-6600, truettiger@ruettigertonelli.com, www.ruettigertonelli.com
Branch Office: Naperville, (630) 420-7740

Rynear & Son, Inc.
Naperville, (630) 355-9889

Seton Engineering Service Corp.
Palatine, (847) 776-7200, www.setoncivil.com
Branch Office: Chicago, (312) 692-0896

Sheppard, Morgan & Schwaab, Inc.
Alton, (618) 462-9755
Branch Office: Granite City, (618) 877-8700

SKS Engineers, Inc.
Decatur, (217) 877-2100, jerry.shaffer@sksengineers.com

Smith Engineering Consultants, Inc.
McHenry, (815) 385-1778, www.smithengineering.com
Branch Office: Yorkville, (630) 553-7560

Sodemann and Associates, Inc.
Champaign, (217) 352-7688, www.sodemann.com

Soodan & Associates, Inc.
Chicago, (312) 553-0003

Spaan Technology, Inc.
Chicago, (312) 492-8071, aoshana@spaantech.com

Spies & Associates, Inc.
Arlington Heights, (847) 577-8808

STS Consultants, Ltd.
Vernon Hills, (847) 279-2500, www.stsltd.com
Branch Office: Springfield, (217) 525-3780

Tetra Tech EM, Inc.
Chicago, (312) 856-8700, www.tetratech.com
Branch Office: Arlington Heights, (847) 255-4166

Thouvenot, Wade & Moerchen, Inc.
Swansea, (618) 624-4488, www.twm-inc.com
Branch Offices:
Waterloo, (618) 939-5050
Edwardsville, (618) 656-4040

Tyson Engineering
Kankakee, (815) 932-7406, www.tysoneng.com

URS Corp.
Rolling Meadows, 847) 364-8800, mohammad_hassan@urscorp.com, www.urscorp.com
Branch Offices:
Chicago, (312) 939-1000
Decatur, (217) 875-4800

Webster, McGrath & Ahlberg, Ltd.
Wheaton, (630) 668-7603

Wech-Tech, Inc.
Libertyville, (847) 549-7882

Wendler Engineering Services, Inc.
Dixon, (815) 288-2261
Branch Offices: Sycamore, Princeton

Wight & Co.
Downers Grove, (630) 969-7000, www.wightco.com
Branch Offices:
Springfield, (217) 726-2000
Chicago, (312) 261-5700

Wight Consulting Engineers, Inc.
Barrington, (847) 381-1800, www.wightconsulting.com

Willett, Hofmann & Associates, Inc.
Dixon, (815) 284-3381, bklingenberg@willetthofmann.com, www.willetthofmann.com
Branch Offices:
Joliet, (815) 725-4525
Rockford, (815) 964-2897
Sterling, (815) 626-3861, whasterling@essex1.com

Woolpert
Belleville, (618) 277-7004, www.woolpert.com

Yates Professional Engineering, Inc.
Paris, (217) 463-3647

Electrical

Burtness Engineering Services
Champaign, (217) 398-9800, www.burtnesseng.com

Sargent & Lundy, L.L.C.
Chicago, (312) 269-2000, www.sargentlundy.com

Environmental

Aerotek Environmental and Engineering, Inc.
Oak Brook, (630) 645-3528, mkennel@aerotek.com, www.aerotek.com

All Appropriate Inquiries Environmental Corp.
Chicago, 773-290-2588, www.aaienvcorp.com, inquiry@aaienvcorp.com
See our other listings in CA, CO, FL, NY, TN, TX, WA

Andrews Environmental Engineering, Inc.
Springfield, (217) 787-2334, arathsack@andrews-eng.com, www.andrews-eng.com
Branch Offices:
Pontiac, (815) 842-2042
Warrenville, (630) 393-9474

Carlson Environmental, Inc.
Chicago, (312) 346-2140, www.carlsonenv.com

Clean World Engineering, Ltd.
Wheaton, (630) 260-0203, www.clean-world.com

Cowhey Gudmundson Leder, Ltd.
Itasca, (630) 250-9595, www.cgl-ltd.com
Branch Office: Chicago, (312) 782-8549

CSD Environmental Services, Inc.
Springfield, (217) 522-4085, www.csdenviro.com

EME Environmental, Inc.
West Chicago, (630) 293-1866

Environmental Operations, Inc.
Springfield, (217) 523-4225, www.environmentalops.com

First Environment, Inc.
Naperville, (630)718-1675, www.firstenvironment.com
See other listings in California, Georgia, Mississippi, New Jersey, and Washington, DC

Frank & Cowles, Inc.
Springfield, (217) 487-7686

Huff & Huff, Inc.
Oak Brook, (630) 684-9100, www.huffnhuff.com

K & H Services Corp.
Springfield, (217) 546-1000, lknepler@kandhservices.com

Parsons
Westmont, (630) 371-1800, www.parsons.com

Purucker Engineering, L.L.C.
Frankfort, (815) 469-8333, customerservice@puruckerengineering.com, www.PuruckerEngineering.com

Secor International, Inc.
Springfield, (217) 698-7247, www.secor.com
Branch Office: Lombard

TurnKey Environmental Consultants, Inc.
Mt. Prospect, (847) 259-5533, wnm@turnkeyenvironmental.com, www.turnkeyenvironmental.com

Woodard & Curran, Inc.
Savoy, (217) 352-1115, www.woodardcurran.com

Environmental / Geotechnical / Materials Testing

G2 Consulting Group, L.L.C.
Wheeling, (847) 353-8740, cnicol@g2consultinggroup.com, www.g2consultinggroup.com

Geotechnology, Inc.
Collinsville, (618) 345-4811, www.geotechnology.com

H.H. Holmes Testing Laboratories
Wheeling, (847) 541-4040, acohen@hhholmestesting.com, www.hhholmestesting.com

Professional Testing Service (PTS)
Hampshire, (815) 501-3456, anna@ptsqcqa.com, www.ptsqcqa.com,

SCI Engineering, Inc.
Fairview Heights, (618) 624-6969, www.sciengineering.com

Seeco Consultants, Inc.
Tinley Park, (708) 429-1666, cassier@seeco.com, www.seeco.com

Shannon & Wilson, Inc.
Collinsville, (618) 346-0055, wbk@shanwil.com, www.shannonwilson.com

Superior Environmental Corp.
Rochelle, (866) 785-4123, jankowl@superiorenvironmental.com, www.superenvironmental.com
Other offices:
Springfield, (800) 721-9010
See our other listings in Connecticut, Indiana, Michigan, and Ohio

WNH Consulting Engineers
Naperville, (630) 904-2709, ashwin@wnhce.com, www.WNHCE.com

Testing Service Corp.
Carol Stream, (630) 462-2600, www.Tsccorp.com
Branch Office: Bloomington, (309) 821-0430

Geotechnical

Claude H. Hurley Co.
Elmhurst, (630) 279-7762

Wang Engineering, Inc.
Addison, (630) 458-0700, wangeng3@wangeng.com

Mechanical

Meed Associates
Chicago, (773) 774-7738

Mechanical / Electrical / Plumbing (MEP)

BBA Engineering, P.C.
Bloomington, (309) 829-9458, www.bbaeng.com

BRIC Partnership, L.L.C.
Belleville, (618) 277-5200, tbuchheit@bricpartnership.com

Engineering Consultants, Inc.
Joliet, (815) 729-0800

Gage Consulting Engineers, Inc.
Oak Brook, (630) 472-0918, jbouse@gage-inc.com, www.gage-inc.com

Gassman Engineers, Inc.
Chicago, (312) 372-3890, gassman@interaccess.com

Gollins Consulting Engineers, Inc.
Wheaton, (630) 209-6855, mgollins@gollinsinc.com, www.gollinsinc.com

Lester & Buehler, Inc.
Columbia, (618) 281-6292, lestbueh@htc.net

Ramm Associates, Inc.
Winsdale, (630) 455-4000

Robert G. Burkhardt & Associates, Inc. Consulting Engineers
Chicago, (312) 341-9292

Multidisciplinary

Ament, Inc.
Moline, (309) 762-3617, www.ament.com

Baker Engineering, Inc.
Chicago, (312) 707-8770, wamrhein@mbakercorp.com, www.mbakercorp.com

Black & Veatch
Chicago, (312) 346-3775, www.bv.com

Blank, Wesselink, Cook & Associates, Inc.
Decatur, (217) 428-0973, www.bwcinc.com

Brown Engineering Co.
Washington, (309) 694-4310

Burns & McDonnell Engineers-Architects-Consultants
Oak Brook, (630) 990-0300, slinnemann@burnsmcd.com, www.burnsmcd.com
Branch Offices:
O'Fallon, (618) 632-0354, meverett@burnsmcd.com
Chicago, (312) 454-0674

Christopher B. Burke Engineering, Ltd.
Rosemont, (847) 823-0500, cburke@cbbel.com, www.cbbel.com
Branch Offices:
Peoria, (309) 676-9000
St. Charles, (630) 443-7755

Clark Dietz, Inc.
Chicago, (312) 648-9900, kenn@clark-dietz.com, www.clark-deitz.com
Branch Office: Champaign, (217) 373-8900

Clark Engineers Inc.
Peoria, (309) 676-8464, www.clarkeng.com
Branch Offices:
Chicago, (630) 595-0050
Salem, (618) 548-3500

Cochran & Wilken, Inc.
Springfield, (217) 585-8300, gwilken@cochran-wilken.com, http://cochran-wilken.com
Branch Office: Murphysboro, (618) 684-5808

CTE Engineers, Inc.
Chicago, (312) 938-0300, www.cte-eng.com

Delta Engineering, Inc.
Chicago, (312) 377-7700

Denes Nagy Associates, Ltd.
Chicago, (312) 642-0977

EDM Inc.
Fairview Heights, (618) 397-1301, chad.janson@edm-inc.com, www.edm-inc.com

Edward C. Lin & Associates, Inc.
Chicago, (312) 666-5467

Edwards and Kelcey, Inc.
Chicago, (312) 251-3000, tjester@ekmail.com, www.ekcorp.com

EME, L.L.C.
Chicago, (312) 277-5988, www.EMELLC.net

Farnsworth Group, Inc.
Bloomington, (309) 663-8435, www.f-w.com
Branch Offices:
Pontiac, (815) 844-5571
Peoria, (309) 686-5100
Wheaton, (630) 784-8910

Gannett Fleming, Inc.
Chicago, (312) 454-9494, jlinhart@gfnet.com, www.gannettfleming.com

Hanson Professional Services Inc.
Springfield, (217) 788-2450, specori@hanson-inc.com, www.hanson-inc.com
Branch Offices:
Rockford, (815) 398-4600
Peoria, (309) 691-0902
Oak Brook, (630) 990-3800
Matteson

Harding ESE, Inc.
Chicago, (773) 693-6030, gsbaker@mactec.com, www.mactec.com
Branch Office: Peoria, (309) 692-4422

Harry O. Hefter Associates, Inc.
Chicago, (312) 346-8131, www.hohgroup.com

HDR Engineering, Inc.
Chicago, (773) 380-7900, www.hdrinc.com

Henneman, Raufeisen and Associates, Inc.
Champaign, (217) 359-1514, www.henneman.com
Branch Offices:
Chicago, (312) 583-1400
Champaign, (217) 398-6280, bbaughman@henneman.com

HNTB Corp.
Chicago, (312) 930-9119, www.hntb.com

Holabird & Root, LLC
Chicago, (312) 726-5960, holabird@holabird.com, www.holabird.com
See also our listing in Minnesota

Horner & Shifrin, Inc. - Engineers
O'Fallon, (618) 622-3040, GCherry@HornerShifrin.com, www.HornerShifrin.com

Howard R. Green Co.
Moline, (309) 764-1220, www.hrgreen.com

Hurst-Rosche Engineers, Inc.
Hillsboro, tconnor@hurst-rosche.com, www.hurst-rosche.com
Branch Offices:
East Saint Louis, (618) 398-0890
Hillsboro, (217) 532-2307
Hillsboro, (217) 532-5600
Marion, (618) 998-0075

Infrastructure Engineering, Inc.
Chicago, (312) 425-9560, www.infrastructure-eng.com

Jacobs Civil, Inc.
Chicago, (312) 655-9207, www.sverdrup.com

Juneau Associates, Inc.
Granite City, (618) 877-1400, www.jaipc.com
Branch Office: Edwardsville, (618) 659-0900

KJWW Engineering, P.C.
Rock Island, (309) 788-0673, www.kjww.com
Branch Office: Napierville, (630) 527-2320

Kuhlmann Design Group, Inc.
Belleville, (618) 234-8898, msh@kdginc.com, www.kdginc.com

Larson Engineering of Illinois
Naperville, (630) 357-0540, jpastore@larsonil.com, www.larsonengr.com

Louis Berger Group, Inc.
Chicago, (312) 630-8200, www.louisberger.com

M.D. Wessler & Associates, Inc.
Arenzville, (217) 997-5880, www.mdwessler.com

Montgomery Watson Harza
Chicago, (312) 831-3000, www.harza.com

Parsons Brinckerhoff Quade & Douglas, Inc.
Chicago, (312) 782-8150, www.pbworld.com

Primera Engineers, Ltd.
Chicago, (312) 606-0910, www.primerachicago.com

Professional Service Industries, Inc.
Oakbrook Terrace, (630) 691-1490, walter.goin@psiusa.com, www.psiusa.com
Branch Offices:
Hillside, (708) 449-0500
Springfield, (217) 544-6663, bill.pongracz@psiusa.com
Elgin

Randolph & Associates, Inc.
Peoria, (309) 693-8844, www.RANDOLPHinc.com

Reynolds, Smith and Hills, Inc.
Naperville, (630) 505-1991, www.rsandh.com

Ruekert & Mielke, Inc.
Tinley Park, (708) 444-7360, jeberle@ruekert-mielke.com, www.ruekert-mielke.com

Scheflow Engineers, P.C.
Elgin, (847) 697-7095

Shah Engineering, Inc.
Chicago, (312) 836-9000

Shive-Hattery, Inc.
Moline, (309) 764-7650, mscheibe@shive-hattery.com, www.shive-hattery.com
Branch Offices:
Bloomington, (309) 662-8992
Des Plaines, (847) 298-1193

Singh & Associates, Inc.
Chicago, (312) 629-0240, www.singhinc.com

Stanley Consultants, Inc.
Chicago, (773) 693-9624, www.stanleygroup.com

Strand Associates, Inc.
Joliet, (815) 744-4200, www.strand.com

STV, Inc.
Chicago, (312) 553-0655, www.stvinc.com
Branch Office: Springfield, (217) 753-1786

Teng & Associates, Inc.
Chicago, (312) 616-0000, www.teng.com

Unified Theory, Inc.
Decatur, (217) 876-7730, mherron@utieng.com, www.utieng.com
Also see our listings under California, Minnesota, South Dakota, and Wisconsin

V3 Interstructure Services, Ltd
Woodridge, (630) 724-9800, www.v3is.com
Branch Offices:
Huntley
Chicago, (312) 419-1985

Walker and Associates, Inc.
Harrisburg, (618) 252-7944

Walter E. Deuchler Associates, Inc.
Aurora, (630) 897-4651

Specialty

Ahern & Associates
Chicago, (312) 997-2177
Transportation and traffic engineering

Alvord, Burdick & Howson
Chicago, (312) 236-9147, www.ABHENGINEERS.com
Water supply and water pollution control
Branch Office: Lisle, (630) 493-1841

Avila & Associates, Inc.
Chicago, (773) 763-6483
Traffic engineering

BIT 7, Inc.
Mundelein, (847) 566-0032, kgunther@bit7.com, www.bit7.com
Product development

Collins Engineers, Inc.
Chicago, (312) 704-9300, tjcollins@collinsengr.com, www.collinsengr.com
Water resources and underwater engineering

EA Engineering Science & Technology
Oak Brook, (630) 574-3060, www.eaest.com
Energy, environmental, process safety and health
Branch Office: Deerfield, (847) 945-8010

Gage-Babcock & Associates, Inc.
Oak Brook, (630) 368-0660, www.gage-babcock.com
Fire protection, security, and life safety

Hannum, Wagle & Cline Engineering
Tuscola, (217) 253-4114, mcline@hwcengineering.com, www.hwcengineering.com
Hannum, Wagle & Cline Engineering is a consulting firm with office locations in Terre Water and wastewater systems

Modjeski and Masters, Inc.
Edwardsville, (618) 659-9102, www.modjeski.com
Fixed and movable road and railway bridges

M+W Zander
Chicago, (312) 577-3000, www.lbka.com

National Engineering Technology Corp.
Arlington Heights, (847) 394-8287, jbrahm@nateng.com, www.nateng.com
Transportation and traffic engineering

Patrick Engineering, Inc.
Lisle, (630) 795-7200, ddietzler@patrickengineering.com, www.patrickengineering.com
Transportation
Branch Offices:
Springfield, (217) 525-7050
Chicago, (312) 201-7900

Regina Webster & Associates, Inc.
Chicago, (773) 283-2600, rwa@thetrafficengineer.com, www.thetrafficengineer.com
Transportation and traffic engineering

Robert W. Hunt Co.
Lombard, (630) 691-4333, www.robertwhunt.com
Quality assurance and expediting services

TranSystems Corp.
Schaumburg, (847) 605-9600, www.transystems.com
Transportation
Branch Office: Chicago, (312) 669-9601
Also see our listing in Michigan

T.Y. Lin International, Inc.
Chicago, (773) 792-9000, hgaffney@tylin.com, www.tylin.com
Transportation and traffic engineering

Walker Parking Consultants
Elgin, (847) 697-2640, www.walkerparking.com
Traffic and transportation engineering, parking facilities

Wilbur Smith Associates
Chicago, (312) 782-1255, www.wilbursmith.com
Transportation and traffic engineering
Branch Office: Lisle, (630) 434-8111

Zimmer Consultants, Inc.
Oak Brook, (630) 571-0050, www.zimmerconsults.com
Pavement design and rehabilitation

Structural

Barry A. Goldberg & Co., Structural Engineers
Skokie, (847) 679-7940

Consulting Engineers Group, Inc.
Mt. Prospect, (847) 255-5200, jeffcarlson@cegengineers.com, www.cegengineers.com

Drucker Zajdel Structural Engineers, Inc.
Naperville, (630) 305-5757, info@dzse.com, www.dzse.com

J.V. Henik, Inc. Structural Engineering
Rosemont, (847) 823-9835

Klein and Hoffman, Inc.
Chicago, (312) 251-1900, www.kleinandhoffman.com

Lindsay & Associates, Inc.
Aurora, (630) 264-9650

Schmidt Engineering, Inc.
Wauconda, (847) 487-0100

Stuart K. Jacobson & Associates, Ltd.
Northbrook, (847) 480-8899, skj@skja-engrs.com