The following lists do not constitute an endorsement or recommendation of any individual or company.

The lists are not comprehensive. They only include emissions testing firms of which the department's Air Pollution Control Program is aware. The information may no longer be accurate. Names, addresses and telephone numbers appear according to the latest information received by the program. Additional firms are available in phone directories and other resources.

To contact the program with any questions regarding stack testing, send us an email to stacktesting@dnr.mo.gov.

Company Services Offered Contact Information
Aereon/Jordan Technologies
Louisville, KY
Stack Testing
Opacity Testing
Office 502-267-8344
testing@aereon.com
http://aereon.com
Air Analysis Group Inc.
Leaswood, KS
Stack Testing
Opacity Testing
Office 913-219-5801
joenasseri@gmail.com
Air Control Techniques PC
Cary, NC
Stack Testing
Opacity Testing
Office 919-460-7811
john.richards@aircontroltechniques.com
http://www.aircontroltechniques.com
Air Hygiene
Broken Arrow, OK
Stack Testing
Opacity Testing
Toll-free 888-461-8778
Office 918-307-8865
http://www.airhygiene.com
Air Quality Services
Evansville, IN
Stack Testing
Opacity Testing
Office 812-452-4785
Fax 812-424-7797
sales@aqsllc.net
http://www.aqsllc.net
AirSource Technologies Inc
Shawnee, KS
Stack Testing
Opacity Testing
Office 913-422-9001
pliebl@airsourcetech.com
http://www.airsourcetech.com
Alliance Source Testing
Decatur, AL
Stack Testing
Opacity Testing
Office 972-931-7127
Fax 256-351-0151
info@stacktest.com
http://www.stacktest.com
Ambient Air Services Inc.
Starke, FL
Stack Testing
Opacity Testing
Office 904-964-8440
Fax 904-965-6675
aasi@ambientairservices.com
http://www.ambientairservices.com
American Engineering Testing Inc.
St. Paul, MN
Stack Testing
Opacity Testing
Office 651-659-9001
Fax 651-659-1379
http://www.amengtest.com
Apex Companies LLC
Novi, MI
Stack Testing
Opacity Testing
Office 248-973-1630
info@apexcos.com
http://www.apexcos.com
Burns & McDonnell
Kansas City, MO
Stack Testing
Opacity Testing
Office 816-333-9400
http://www.burnsmcd.com
Catalyst Air Management Inc.
Knoxville, TN
Stack Testing
Opacity Testing
Office 865-531-0075
Fax 865-531-0750
catalysts.office@catalystsair.com
http://www.catalystair.com
CETCON Inc.
Tulsa, OK
Stack Testing
Opacity Testing
Office 918-743-2285
galen@cetoninc.com, andrea@cetcon.com
http://www.cetconinc.com
Civil & Environmental Consultants Inc.
St. Charles, MO
Stack Testing
Opacity Testing
Office 314-656-4566
info@cecinc.com
http://www.cecinc.com
CleanAir Engineering
Palatine, IL
Stack Testing
Opacity Testing
Toll-free 800-627-0033
Office 800-553-5511
info@cleanair.com
http://www.cleanair.com
Comprehensive Emissions Services
Waukee, IA
Stack Testing
Opacity Testing
Office 515-987-0200
doug@testces.com
Eagle Environmental Management LLC
Wentzville, MO
Stack Testing
Opacity Testing
Office 314-324-5323
service@eaglemgt.com
http://www.eaglemgt.com
Enthalpy Analytical LLC
Deer Park, TX
Stack Testing
Opacity Testing
Office 281-984-7021
clint.thrasher@enthalpy.com
http://www.enthalpy.com
Environmental Consulting Services of KC Inc.
Shawnee Mission, KS
Opacity Testing Office 913-219-5801
joenasseri@gmail.com
Environmental Monitoring Laboratories LLC
Ridgeland, MS
Stack Testing
Opacity Testing
Office 601-856-3092
jbasle.eml@gmail.com
http://www.eml-llc.com
Environmental Services Company
Wilmington, NC
Stack Testing
Opacity Testing
Office 479-750-1170
http://www.esclabs.com
Environmental Source Samplers Inc.
Wilmington, NC
Stack Testing
Opacity Testing
Office 910-799-1055
ess@ess.knowair.com
Environmental Works Inc.
Springfield, MO
Stack Testing
Opacity Testing
Office 417-890-9500
kcassil@nvironmentalworks.com
http://www.environmentalworks.com
Environmental Works Inc. KC
Kansas City, MO
Stack Testing
Opacity Testing
Office 816-285-8410
kcassil@nvironmentalworks.com
http://environmentalworks.com
Focus Environmental Inc.
Knoxville, TN
Stack Testing
Opacity Testing
Office 865-694-7517
focus@focusenv.com
http://www.focusenv.com
GAS Inc.
Elk City, OK
Stack Testing Office 318-955-3022
info@gasinc.com
http:/www.gasinc.us
Grace Consulting Inc
Wellington, OH
Stack Testing
Opacity Testing
Office 440-647-6672
contact@gcitest.com
http://www.gcitest.com
Grace Consulting Inc.
Nixa, MO
Stack Testing
Opacity Testing
Office 636-279-4299
contact@gcitest.com
http://www.gcitest.com
Heider Environmental Consulting
Columbia, MO
Opacity Testing Office 573-445-3033
Fax 573-445-3058
Mobile 573-639-1410
info@heiderenv.com
http://www.heiderenv.com
Interpoll Laboratories Inc.
Circle Pines, MN
Stack Testing
Opacity Testing
Office 763-786-6020
Fax 763-786-7854
interpoll@interpoll-labs.com
http://www.interpoll-labs.com
Monitoring Solutions Inc.
Indianapolis, IN
Stack Testing
Opacity Testing
Office 317-856-9400
jnowak@monsol.com
http://www.monsol.com
Montrose Environmental Company
Cleveland, OH
Stack Testing
Opacity Testing
Office 800-372-2471
jhicks@montrose-env.com
http://www.montrose-env.com
Montrose Environmental Company
Elk Grove Village, IL
Stack Testing
Opacity Testing
Office 630-860-4740
bcheck@montrose-env.com
http://www.montrose-env.com
Montrose Environmental Company
Wauconda, IL
Stack Testing
Opacity Testing
Office 847-487-1580
http://www.montrose-env.com
Mostardi Platt Corporate Office
Elmhurst, IL
Stack Testing
Opacity Testing
Office 630-993-2100
Fax 630-993-9017
info@mp-mail.com
http://www.mostardiplatt.com
NPN Environmental Engineers Inc.
Fenton, MO
Stack Testing
Opacity Testing
Office 636-343-1300
http://www.npnenv.com
Ramboll
Liverpool, NY
Stack Testing
Opacity Testing
Office 315-637-2234
http://www.obg.com
RMC Environmental Inc.
Elgin, IL
Stack Testing
Opacity Testing
Toll-free 800-532-3391
rmce@airmonitoring.com
http://www.airmonitoring.com
Soderberg Polytechnic Co. LLC
Kansas City , MO
Stack Testing Office 816-221-9018
TRC Environmental Corporation
Burr Ridge, IL
Stack Testing
Opacity Testing
Office 312-533-2042
dgrabowski@trccompanies.com
http://www.trccompanies.com
Wilcox Environmental Engineering
Speedway, IN
Stack Testing
Opacity Testing
Office 317-472-0999
Fax 317-472-0993
snelson@wilcoxenv.com
http://www.wilcoxenv.com