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A & J Equipment Company
Leon, IA
641-446-6690

A-Better Earth
Lawrence, KS
785-764-1674

Abild Engineering Company
Atlantic, IA
712-243-1764

Acco Unlimited Corporation
Johnston, IA
515-278-0487

Advanced Services Corp.
Marion, IA
319-377-6357

Adventus Americas, Inc.
http://www.AdventusGroup.com
Freeport, IL
888-295-8661

Aestus, LLC
http://www.aestusllc.com
Loveland, CO
970-278-4090
Stillwater, OK
405-612-2713

Ag Environmental Services
West Des Moines, IA
515-221-2788

Agra Placements Ltd.
Clive, IA
515-225-6562

Agricultural Engineering Associates, Inc.
Uniontown, KS
620-756-1000

Air Toxics Ltd.
http://www.airtoxics.com
Folsom, CA
916-605-3335

Aires Environmental Services, Ltd.
Batavia, IL
630-879-3006

Alfred Benesch & Co.
Lincoln, NE
402-479-2205

Allender Butzke Engineers
http://www.abengineers.com
Urbandale, IA
515-252-1885

Alliance Source Testing
Decatur, AL
256-351-0121

Ament, Inc.
Cedar Rapids, IA
319-378-1401
Moline, IL
309-762-3617

American Engineering Testing, Inc.
Mankato, MN
507-387-2222

American Environmental Corp
Springfield, IL
217-585-9517

Antea Group
Bettendorf, IA
563-355-9785
563-723-5990
davenport, IA
563-340-8030
West Des Moines, IA
515-223-7493
Naperville, IL
6307174059
Shoreview, MN
651-697-5228

AON Risk Services, Inc.
http://www.aon.com
West Des Moines, IA
515-225-9263

Aon Risk Solutions
West Des Moines, IA
515-440-7016

Apex
Urbandale, IA
515-727-8025

Apex Companies
Urbandale, IA
515-727-8025

Apex Companies, LLC
Urbandale, IA
515-727-8025

APTIM
Johnston, IA
515-975-1384

Aquetech
Fort Dodge, IA
515-490-3806

Arcadis Geraghty & Miller, Inc.
Eagan, MN
651-454-2399

Array Environmental
Valley, NE
402-359-2233

Aspec Environmental Testing, Inc.
Bettendorf, IA
563-355-6277

Associated Engineering Co. of Iowa
http://www.aecofiowa.com
Des Moines, IA
515-255-3156

ATC Group Services
Des Moines, IA
515-981-4528

ATC Group Services LLC
www.atcgroupservices.com
Des Moines, IA
515-689-3993
Omaha, IA
402-697-9747
Waterloo, IA
319-233-0441

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B2 ENVIRONMENTAL, INC. dba ABC ABATEMENT
Omaha, NE
402-330-0763

Barker Lemar Engineering Cons.
West Des Moines, IA
515-256-8814

Barr Engineering Co.
Minneapolis, MN
952-832-2732

Bartlett & West Engineers, Inc.
West Des Moines, IA
515-440-2856

Barton Solvents, Inc.
Des Moines, IA
515-265-7998

Baxter & Woodman, Inc.
Crystal Lake, IL
815-459-1260

Bay West
St. Paul, MN
800-279-0456

Beck Engineering, Inc.
Spirit Lake, IA
712-336-3596

BESST Inc.
Golden, CO
303-526-4122

Biomass Rules, LLC
http://www.biomassrules.com
Greenville, IL
618-664-9687

Biox Services, LLC
www.BioxServices.com
Chicago, IL
773-299-1949

Bishop Engineering Company
Des Moines, IA
515-276-0476

Black & Veatch
Shawnee Mission, KS
913-458-2000

Blackhawk Environmental Testing, Inc.
Denver, IA
319-984-6600

Blasland, Bouck & Lee, Inc.
Syracuse, NY
315-446-9120

BMS, Inc.
http://www.bioxtech.com
Crown Point, IN

Bolton & Menk, Inc.
Ames, IA
515-253-0830

Braun Intertec
Cedar Rapids, IA
319.365.0961
319-365-0961
319-365-9565
319.365.0961
Mankato, MN
507-345-4913
Saint Paul, MN
651-487-7005

Brown, Winick, Graves, Gross, Baskerville & Schoenebaum, PLC
http://www.brownwinick.com
Des Moines, IA
515-242-2404

Buell-Winter-Mousel & Associates PC
Sioux City, IA
712-258-4204

Buesing & Associates Inc.
Dubuque, IA
319-556-4389

Burns & McDonnell
Kansas City, MO
816-822-3076

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Calhoun Burns and Associates Inc.
West Des Moines, IA
515-224-1385

Cameron-Cole, LLC
Boulder, CO
303-938-5562

Carus Corporation
Peru, IL
815-224-6594

Casey's General Stores
Ankeny, IA
515-965-6238

Cedar Valley Engineering Co.
Waverly, IA
319-352-2625

CES
Valley, NE
402-359-6140

CETCO
www.cetco.com
Hoffman Estates, IL
8478511841
Houston, TX
281-550-3388

CH2M Hill
Overland Park, KS
913-345-2400

CHEM-ECO Environmental
Anamosa, IA
319-484-2618

City of Des Moines
Des Moines, IA
515-283-4028
515-323-8173

Civil Engineering Consultants Inc.
Des Moines, IA
515-276-4884

Clapsaddle Garber Associates
Marshalltown, IA
515-752-6701

Clean Harbors Environmental Services
www.cleanharbors.com
Norwalk, IA
515-306-2200

Clear Consulting
Moline, IL
309-797-5884

Clements Associates, Inc.
http://www.jmcsoil.com
Newton, IA

Coleman Moore
http://www.colemanmoorecompany
Des Moines, IA
515-309-5577

Comprehensive Emission Services
West Des Moines, IA
515-225-7372

CompuTerra Inc.
Iowa City, IA
319-335-4489

Conestoga-Rovers & Assoc
http://www.craworld.com
Chicago, IL
773-380-9249
St. Paul, MN
651-639-0913

Conestoga-Rovers & Associates
Chicago, IL
773-485-9334

Consolidated Environmental Services
Birmingham, MI
586-725-5189

Crawford Engineering
Independence, IA
319-334-7077

CSD Engineering PC
Sergeant Bluff, IA
712-943-5055

Curry-Wille & Associates
Ames, IA
515-232-9078

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Deere & Company
Public Profilehttps://www.linkedin.com/in/quinn-burke-anderson-197b4a37
Waterloo, IA
3097815240

Delta Environmental Consultants
http://www.deltaenv.com
Bettendorf, IA
563-355-9785
St. Charles, MO
636-916-8101
636-916-8106

Dennis Johnson & Associates, Inc.
Windom, MN
507-831-2703

Des Moines Internation Airport
http://www.dsmairport.com
Des Moines, IA
515-256-5302

Des Moines Public Schools
Des Moines, IA
515-242-7917

DeWild-Grant-Reckert & Associates
Rock Rapids, IA
712-472-2531

Digital Control, Inc.
Ames, IA
515-460-1060

Douglas Environmental Consulting
http://douglas-environmental-consulting.com/index.html
Dewitt, IA
563-659-1421

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Earth Services & Abatement (ESA)
http://www.esasite.com/
Ames, IA
515.290.9285

Earth Services & Abatement (ESA) - Iowa Demolition
Ames, IA
515.290.9285

Earth Tech
Des Moines, IA
515-244-4803
Waterloo, IA
319-232-6531
Oak Brook, IL
630-574-5854

Ecolotree
North Liberty, IA
319-665-3547

EcoSource
West Des Moines, IA
641-660-1766

EcoSource, LLC.
www.ecosourceiowa.com
West Des Moines, IA
515.250.6695

Ecovac Services
Woodstock, GA
888 432-6822 x101
St. Charles, IL
888-432-6822

Eisenbraun & Associates
Yankton, SD
605-665-8092

Elm Consulting, LLC
Peoria, IL
309-673-7648

EMR-INC
www.emr-inc.com
Overland Park, KS
785-842-9013

Enecotech Midwest, Inc.
Eagan, MN
651-405-1033

ENSR International
St. Louis, MN
952-924-0117

Enviro-Tec, Inc
Cresco, IA
319-547-2413

EnviroBusiness dba EBI Consulting
www.ebiconsulting.com
Rock Island, IL
309-283-7560

Enviromark
Davenport, IA
800-388-9100
563-388-9100
Des Moines, IA
515-265-5900

EnviroNET
Davenport, IA
563-323-2262

Environmental Consulting & Technology
1508 Glendale Road
Iowa City, IA
9702902629

Environmental Consulting & Technology Inc.
Iowa City, IA
319-338-2840

Environmental Protection
South Holland, IL
708-225-1115

Environmental Resource Services
Ames, IA
515-231-2288

Environmental Science & Engineering
Peoria, IL
309-693-5779

Environmental Science Corp.
MT. Juliet, TN
314-750-0321

Environmental Sciences, Inc.
Lincoln, NE
402-423-9696

Environmental Solutions
Omaha, NE
402-896-3600

Environmental Specialists, Inc.
Kansas City, MO
816-523-6878

Environmental Systems, Inc.
Iowa City, IA
319-887-1674

Erdman Engineering PC
Decorah, IA
319-382-4194

Eschliman Engineering
Boone, IA
515-432-7323

Essential Science Inc.
Iowa City, IA
319-430-1793

Evans Environmental
Glenwood, IA
712-527-1440

ExoTech, Inc.
http://www.exotechinc.com
Lilburn, GA
770-564-1444

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Fehr-Graham & Associates
Freeport, IL
815-235-7643

Forest Road Consulting, Inc.
www.forest-road.com
Davenport, IA

Foth Infrastructure & Environment
Des Moines, IA
515.251.2572

Foth Infrastructure & Environment, LLC
Cedar Rapids, IA
319-297-2065

Foth Infrastructure and Environment LLC
https://www.foth.com/
Johnston , IA
563-949-5999

Fox Engineering
http://www.foxeng.com
Des Moines, IA
515-233-0000

FRC, Inc.
Davenport, IA
319-441-2900

French-Reneker-Associates, Inc.
Fairfield, IA
641-472-5145

FRx Inc.
Cincinnati, OH
800-495-9004

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Garden & Associates, Ltd.
Oskaloosa, IA
641-672-2526

General Excavating
Lincoln, NE
402-467-1627

Geo Services, Inc.
Cedar Rapids, IA
319-431-3445

Geode Environmental, LLC
Johnston, IA
515-309-2183

Geoprobe Systems
www.geoprobe.com
Salina, KS
785-404-1147

Geoprobe Systems®
geoprobe.com
Salina, KS
612-500-2381

Geoservices
Cedar Rapids, IA
31-362-9863

GeoSource, Inc.
Monticello, IA
319 465-2030

GeoStat Environmental, LLC
Dallas Center, IA
316-755-8830
Urbandale, IA
515-954-6412

Geotechnical Services, Inc.
http://www.gsinetwork.com
Des Moines, IA
515-270-2642

Geotek Engineering and Testing Services, Inc.
Sioux Falls, SD
605-335-5512

GHD
Urbandale, IA
515-414-3933

Gibbs Engineering & Surveying
Manchester, IA
563-927-2434

Gjersvik & Associates Inc.
Pleasant Hill, IA
515-263-8882

Golder Associates, Inc.
St. Charles, MO
314-936-1554

Green Way Environmental Consulting, LLC
greenwayenvironmentalconsulting.com
Iowa City, IA
(319) 541-1467

Groundwater & Environmental Service
http://www.GESonline.com
Milwaukee, WI
414-747-2444

Groundwater Service & Supply, Inc.
http://www.gssmidwest.com
Urbandale, IA
515-331-2103

Groundwater Service and Supply, Inc.
Urbandale, IA
515-331-2103

Growmark, Inc
Waterloo, IA
319 236-3841

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H2K Technologies, Inc.
http://www.H2KTech.com
Plymouth, MN

Hall Engineering Company
Centerville, IA
515-437-4477

Hanson Professional Services
Springfield, IL
217-788-2450

HazMat Response, Inc.
Olathe, KS
800-229-5252

HDR Engineering, Inc.
Des Moines, IA
515-440-2373
Omaha, NE
402-399-1286

Heartland Environmental Services, Inc.
Polk City, IA
515-984-9166

Heartland Solutions, Inc.
Grain Valley, MO
816-867-2054

Heritage
Lemonte, IL
800-735-4374

HGM Associates Inc.
Council Bluffs, IA
712-323-0530

Historical Information Gatherers, Inc.
http://www.historicalinfo.com
Hopkins, MN
952-253-2004
952-253-2004 ext.118

Holmes Murphy & Associates
West Des Moines, IA
515-223-6800

HR Green
Cedar Rapids, IA
3193311577

HR Green, Inc.
http://www.hrgreen.com/index.aspx
Cedar Rapids, IA
3198414329

HWS Consulting Group, Inc.
Lincoln, NE
402-479-2247
402-479-2205

Hyde Environmental, Inc.
http://www.hyde-env.com
Waukesha, WI
262-798-8600

Hydro-Klean
Des Moines, IA
515-208-5955

Hydro-Klean, Inc.
http://www.hydro-klean.com
Des Moines, IA
515-283-0500

Hydro-Klean, LLC
www.hydro-klean.com
Des Moines, IA
515.283.0500

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IA Paint MFG. Co
Des Moines, IA
515-283-1501

IIW Engineers and Surveyors PC
Dubuque, IA
563-556-2464

Impact 7G
http://www.impact7g.com/
Johnston, IA
515-473-6256

Impact7g
9550 Hickman Road, Suite 105
Clive, IA
5157205170
Johnston, IA
9079782449

Impact7G, Inc
Johnston, IA
515-473-6256
515-735-2129

Impact7G, Inc.
Clive, IA
5158673654
Johnston, IA
515-473-6256

In-Situ Inc.
www.in-situ.com
Ft. Collins, CO
9704981557

Innovative Remediation Technologies
irtechLLC.com
Chicago, IL
773-299-1949

inVentures Technologies Inc.
Toronto, ON
647-477-1722

Iowa Assn. of Municipal Utilities
Ankeny, IA
515-289-1999

Iowa Department of Natural Resources
(515) 725-0384
Des Moines, IA
515-281-5385
515-281-6704
515-242-6491
515-281-7982
515-281-8997
Iowa City, IA
319-335-1598
Manchester, IA
563/927-2640

Iowa Department of Natural Resources, FO #1
Manchester, IA
563-927-2640

Iowa Department of Natural Resources, FO #2
Mason City, IA
641-424-4073

Iowa Department of Natural Resources, FO #3
Spencer, IA
712-262-4177

Iowa Department of Natural Resources, FO #4
Atlantic, IA
712-243-1934

Iowa Department of Natural Resources, FO #5
Des Moines, IA
515-725-0268

Iowa Department of Natural Resources, FO #6
Washington, IA
319-653-2135

Iowa Department of Natural Resources, Geologic Survey Bureau
Coralville, IA
319-351-6668

Iowa Department of Natural Resources, UST Section
Des Moines, IA
515-281-8011
515-725-8325

Iowa Department of Natural Resources, Water Quality Bureau
Slater, IA
515-710-0188

Iowa Department of Natural Resources, Water Supply Engineering
Des Moines, IA
515-725-0336
515-725-0467

Iowa Dept. of Justice
http://www.iaenvironment.org
Des Moines, IA
515-281-6678

Iowa DNR
Ames, IA
515-290-1396 (cell)
Des Moines, IA
515-310-0247
515-725-0462
Toledo, IA
641.751.4465

Iowa One Call
Des Moines, IA
800-292-8989

Iowa Rural Water Association
Newton, IA
641-787-0330

Iowa State University
Maquoketa, IA
563-219-4271

Iowa State University-EH&S
Ames, IA
515-294-3409

ISU
Ames, IA
515-294-2105
515-294-7676
515-294-8056

ISU Dept. of Agricultural Engineering
Ames, IA
515-294-1434

ISU Dept. of Chemical Engineering
Ames, IA
515-294-7642

ISU Dept. of Civil & Environmental Engineering
Ames, IA
515-294-2140

ISU Dept. of Environmental Science
Ames, IA
515-294-3651

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J. Pettiecord, Inc.
Des Moines, IA
515-263-8900

Jacobson-Westergard & Associates
Estherville, IA
712-362-2647

Jebro Inc.
www.Jebro.com
Sioux City, IA
712-234-2814

JEO Consulting Group, Inc.
http://www.jeo.com
Carroll, IA
712-792-9711
Iowa City, IA
319-338-3909
402-443-7481

JFSCO Engineering
Red Oak, IA
712-623-2579

John Franklin Engineering
Spirit Lake, IA
712-336-0727

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KD3 Environmental LLC
Iowa City, IA
319-560-0226

KDHE
Topeka, KS
785-296-1684

Keystone Laboratories, Inc.
http://www.keystonelabs.com
Newton, IA
800-858-5227

Kirkham-Michael & Associates
Urbandale, IA
515-270-0848

Kleinfelder
Omaha, NE
402-331-2260

Knightly Environmental Inc.
knightlyenvironmental.com
Lenexa, KS
913-888-1985

Kruse, Cate & Nelson PC
Spencer, IA
712-262-3468

Kuehl & Payer Ltd.
Algona, IA
515-295-2980
Storm Lake, IA
712-732-7745

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Lab Safety Supply, Inc.
http://www.LSS.com
Janesville, WI
1-800-356-0783

Landmark Surveying and Engineering Inc.
Iowa City, IA
319-354-1984

Larson Engineering, PLC
Urbandale, IA
515-251-8499

Layne Christensen
Valley, NE
402-359-2042

Leggette, Brashears & Graham, Inc.
http://www.lbgmn.com
St. Paul, MN
651-490-1405 ext. 213
North Kansas City, MO
816-421-7766 ext.101
816-421-7766 ext. 106
Sioux Falls, SD
605-334-6000

Leo Pelds Engineering Company
Des Moines, IA
515-265-8196

Liesch Associates, Inc.
Plymouth, MN
763-559-1423

Lockheed Martic
Kansas City, MO
816-329-3649

LRM Consulting
Louisville, NE
4029490832

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Magellan Midstream Partners, LP
Urbandale, IA
515-265-2111
515-276-0547

Marek Industries, LLC
Johnston, IA
515-205-0101

Marine Pollution Control
Perry, IA
515-428-8282 x 2004

Marshall Miller & Associates
Lenexa, KS
913-648-4424

Martin Marietta
Johnston, IA
515-276-8089

McClure Engineering
Fort Dodge, IA
515-576-7155
East Moline, IL
309-792-9350

McFadden Environmental
Grimes, IA
515-986-1755

MECx
http://www.mecx.net
East Amherst, NY
713.412.9697

META
Lawrence, KS
913 842-6382

Metro Waste Authority
www.mwatoday.com
Bondurant, IA
515-333-4434
Mitchellville, IA
515-333-4475

MidAmerican Energy Company
Urbandale, IA
515-281-2344
515-281-2953

Midwest Environmental Services
Centerville, IA
800-510-8510

Midwest Inspections & Env. Services
Marshalltown, IA
515-753-6071

Midwest Laboratories, Inc.
http://www.midwestlabs.com
Omaha, NE
402-334-7770

Midwest Trenchless Technologies
Belle Plaine, MN
952-873-3292

Missman, Stanley & Associates
http://www.missman.com
Rock Island, IL
309-283-1583

MPS Engineers
www.mpsengineers.com
Des Moines, IA
515-221-9832
West Des Moines, IA
515-681-7218

MSA Professional Services, Inc.
Galena, IL
888-672-0003

MWH
http://www.mwhglobal.com
Urbandale, IA
515-253-0830

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Nationwide Environmental Group, Inc.
Comanche, IA
319-259-1048

NCG Drilling Division - Nova Consulting Group
Chaska, MN
952-361-8671

Nelson Engineering
Charles City, IA
641-228-4624

Northern Natural Gas
http://www.NNGCO.com
Omaha, NE
402-398-7715

Northwest Environmental Services, Inc.
http://www.midlands.net
Alton, IA
712-756-4732

NTC Services
Mequon, WI
262-404-1131

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Pace Analytical Services, Inc.
Lenexa, KS
913-563-1452
8165507359

Pauly Environmental, LLC
Winterset, IA
515-462-4210

PDC Laboratories, Inc. / Peoria Disposal Co.
http://www.pdcarea.com
Peoria, IA
309-688-0760 ext. 218

PEMC CO, LLC
Omaha, NE
402-657-4910

PeroxyChem
www.peroxychem.com
Chicago, IL
7739919615

Philip Services Corp
Columbia, IL
618-281-1547

Pioneer Environmental Services, LLC
www.pioneerees.com
Chicago, IL
773-722-9200

Pioneer Hi-Bred International
Ankeny, IA
515-270-5987

PMCI
www.rinalliance.com
Urbandale, IA
515-421-4590

PMMIC
http://www.roundsassociates.com
Urbandale, IA
515-334-3001
515-334-3010
Waukee, IA
515-266-9891

Pointer Environmental Inc.
Davenport, IA
319-388-7890

Preston Engineering
http://www.prestonengineering.com
Davenport, IA
563-388-8288

Product Level Control, Inc
http://www.productlevel.com
Burnsville, MN
952-707-9101
952-707-9101 ext. 131

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QED Environmental Systems
http://www.qedenv.com
Ann Arbor, MI

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Rain for Rent
http://www.rainforrent.com
Davenport, IA
563-529-3464

RDG Geoscience & Engineering, Inc.
Omaha, NE
402-894-2678

Regenesis
949-366-8000
San Clemente, CA
630-319-0836
Lenexa, KS

Remediation Technologies, LTD
Des Plaines, IL
847-956-7587

Rewerts Well Company
Nevada, IA
515-382-4925

RINAlliance
Des Moines, IA
515-988-1626
Urbandale, IA
8664337467

Rock River Consulting, Inc
Davenport, IA
309-314-2496

Rockwell Solutions, Inc.
Elk Ridge, UT
801-361-2930

Rounds & Associates/PMMIC
Urbandale, IA
(515) 334-3001

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Saberprobe
http://www.saberprobe.com
Omaha, NE
402-253-8866

Schemmer Associates
Council Bluffs, IA
515-329-0300

Schlotfeldt Engineering Inc.
Lemars, IA
712-546-8118

SCS Engineers
Logan, IA
4026996993
Overland Park, KS
(913) 451-7510
Omaha, NE
(402)884-6202

Secor
White Bear Lake, MN
651-653-912

Seneca
www.senecaco.com
Davenport , IA
563-332-8000

Seneca Companies
http://www.senecaco.com
Bettendorf, IA
563-332-8000
800-728-6900
Des Moines, IA
515-201-5675
800-369-3500
800-369-5500
515-264-4333

Shaw Environmental
http://www.shawgrp.com
O'Fallan, MO
800-537-9540

Shekar Engineering
2600 MLK Jr. Pkwy, Suite 200
Des Moines, IA
5159756495
Johnston, IA
515-334-5062

Shekar Engineering, PLC
Johnston, IA
515-334-5062

Sinclair Oil Company
Burnsville, NM
952-736-1100

Snyder & Associates, Inc.
Ankeny, IA
515-964-2020

Solstice Company, Inc.
Omaha, NE
515-291-4221

Stanley Consultants, Inc.
http://www.stanleygroup.com
Coralville, IA
319-626-3990
319-626-5330

Stantec
Des Moines, IA
515 251-1053
515 253-0830
Huxley, IA
515-597-3405
Solon, IA
5073580344
Urbandale, IA
515 253-0830
515-253-0830

Stantec Consulting Corporation
http://www.stantec.com
White Bear Lake, MN
651-255-5050

Steffen Engineering & Testing, Inc.
Lawton, IA
712 944-5511

Stone Consulting
Boone, IA
515-433-2164

Summit Envirosolutions, Inc.
http://www.summite.com
St. Paul, MN
651-842-4204

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Terracon
Bettendorf, IA
563-355-0702
Cedar Falls, IA
319-268-4728
Cedar Rapids, IA
319-366-8321
Des Moines, IA
515-244-3184
Omaha, NE

Terracon Consultants
Des Moines, IA
5155573887

Terracon Consultants, Inc.
Bettendorf, IA
563-468-4271
Des Moines, IA
5152443184
Omaha, NE
402-330-2202

TestAmerica
Cedar Falls, IA
319-277-2401
Epworth, IA
319-269-2465
Esko, MN
319-269-2465

The Retec Group, Inc.
St. Paul, MN
651-222-0841

Thiele Geotech, Inc.
http://www.thielegeotech.com
Omaha, NE
402-556-2171

Thompson Environmental Consulting
http://www.tecenv.com
West Des Moines, IA
515-225-4303

Toltest, Inc.
Toledo, OH
419-241-7175

Triad Engineering
Milwaukee, WI
414-291-8840

TriCore Environmental, LLC
www.tricoreweb.com
naperville, IA
6305209973
West Chicago, IL
630-520-9973

Trihydro Corporation
Laramie, WY
307-745-7474

Trileaf Corporation
http://www.trileaf.com
Grimes, IA
515-986-5151

Tucker Consulting Inc.
Storm Lake, IA
712-732-3030

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U of I Hygienic Laboratory
Iowa City, IA
319-335-4500

Ulteig Engineers, Inc.
Sioux Falls, SD
605-323-2603

Unified Contracting
Des Moines, IA
515-266-5700

Unified Contracting Services Inc
www.petroleumcontractor.com
Des Moines , IA
515-266-5700

Unified Contracting Services, Inc
Des Moines, IA
515-266-5700

United Environmental Services, Inc.
Urbandale, IA
515-727-2204

University of Iowa
Iowa City, IA
319-335-5065

University of Northern Iowa
Cedar Falls, IA
319-273-3445

URS Corporation
http://www.urscorp.com
Urbandale, IA
515-284-5500
Chicago, IL
312-596-6706
312-596-6775

US Army COE, CEMVR-ED-DN
Rock Island, IL
309-794-5643

US Army Corps. of Engineers
Rock Island, IL
309-794-5202

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Veenstra & Kimm, Inc
West Des Moines, IA
515-225-8000

Vermeer Corp.
ddawley@vermeer.com
New Sharon , IA
641-295-1654

VERUTEK
http://www.gsprsenv.com

VJ Engineering
http://www.vjengineering.com
Cedar Rapids, IA
319-447-2222
Iowa City, IA
319-351-2166

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W&M Environmental Group, Inc.
http://www.wh-m.com
Iowa City, IA
319-248-9872

Wapsi Valley Archaeology
Ames, IA
515.233.1146

Wayne Claassen Engineering
Waterloo, IA
319-235-6294

Web Tester
www.test.com
Clive, IA
515-555-5555

Wenck Associates, Inc.
Maple Plain, MN
763-479-4228

West Central Environmental Consultants, Inc.
http://www.wcec.com
Morris, MN
320-589-2039

West Des Moines Engineering Division
West Des Moines, IA
515-222-3475

Westheffer Company, Inc.
http://www.westheffer.com
Lawrence, KS
785-843-1633

WHKS & Co.
Mason City, IA
641-423-8271

Wood Environment & Infrastructure Solutions
https://www.woodplc.com/
Edina, MN
952-806-0664

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Xitech Instruments Inc.
Panora, IA
641-755-2711

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Yaggy Colby Associates
Mason City, IA
641-424-6344

Youngquist Engineering
Des Moines, IA
515-285-2958

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Zia Engineering & Environmental Consultants
Windsor Heights, IA
515-334-9994

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