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Professional Testing Service - Member Since 2023 19207 W Union Rd. Union, IL 60180 Phone: 815-504-3456 Contacts: *Name* *Title* *Phone* *Email* Brian Szydzik Vice President 815-501-3456 brian@ptsqcqa.com
True North Consultants Inc. - Member Since 2014 1000 East Warrenville Road, Suite 140 Naperville, IL 60563 Phone: 630-717-2880 Fax: 630-689-5881 Contacts: *Name* *Title* *Phone* *Email* Brian Mihelich Executive Vice President 224-387-6125 bmihelich@consulttruenorth.com Ryan LaDieu, P.E. President 224-387-6063 rladieu@consulttruenorth.com Michael Brennan Executive Vice President 224-387-6014 mbrennan@consulttruenorth.com Michelle Schmidt Corporate Services Manager 630-717-2880 mschmidt@consulttruenorth.com Branch Offices: 525 Junction Road, Suite 5800 Madison, WI 53717 Phone: 608-234-5092 Fax: 608-237-2453 Branch Contacts: Christopher H. Valcheff Vice President cvalcheff@consulttruenorth.com Description: Our specialties at True North Consultants, Inc. include Phase I & Phase II Environmental Site Assessments, CCDD & Uncontaminated Soil Assessments & Certifications, Asbestos, Lead, Mold & Indoor Air Quality Consulting, UST Management, Removal & Closure, and Facility Decommissioning & Demolition Oversight.
Chicago Testing Laboratory, Inc. - Member Since 2019 30W114 Butterfield Rd. Warrenville, IL 60555 Phone: 630-393-2851 Website: https://www.chicagotestinglab.com Contacts: *Name* *Title* *Phone* *Email* Jeff Rothamer Director of Technical Services 630-560-4470 jrothamer@chicagotestinglab.com Abdul Dahhan VP of Engineering 630-560-4455 adahhan@chicagotestinglab.com Paul Yerkes President 630-299-4803 pyerkes@chicagotestinglab.com Description: Since 1912 Chicago Testing Laboratory has been a professional engineering consulting firm engaged in testing and inspection of construction related materials.
SRN Testing Services, LLC - Member Since 2023 2258 Southwind Blvd. Barlett, IL 60103 Phone: 630-503-5002 Contacts: *Name* *Title* *Phone* *Email* Michael Pierce Director of Operations & Business Development - mpierce@srntest.com Sarah Thornborough Environmental Client Services - sthornborough@srntest.com David Martin President - dmartin@srntest.com Chris Salutric Laboratory Services Director - csalutric@srntest.com Description: SRN Testing supports geotechnical, environmental, and civil engineers, designed as an ecosystem of engineering and analytical testing under one roof.
Geo-Logic Associates - Member Since 2025 100 Illinois Street, Suite 201 St Charles, IL 60174 Phone: 907-351-2871 Website: https://geo-logic.com Contacts: *Name* *Title* *Phone* *Email* John Low Principal Geologist - jlow@geo-logic.com Devin Moose Principal Engineer - dmoose@geo-logic.com Marty Fallon Operations Manager - mfallon@geo-logic.com Mike Monteith Senior Geologist - mmonteith@geo-logic.com Description: Geo-Logic Associates (GLA) is an employee-owned, multidisciplinary environmental, civil and geotechnical engineering consulting firm with more than 300 employees located in 29 offices in the U.S. and abroad. GLA and its affiliates provide solutions to challenges for landfills, mines, contaminated sites, municipal projects, natural resources, and water resources.
Bluff City Materials, Inc. - Member Since 1995 2252 Southwind Blvd. Bartlett, IL 60103 Phone: 630-497-8700 Fax: 630-497-9800 Website: https://www.bluffcitymaterials.com Contacts: *Name* *Title* *Phone* *Email* Mike Vondra Chairman 630-497-8700 - Kristi Bloom Executive Administration & Operations 630-497-8700 kristib@grp7.com Troy Kutz President 630-497-8700 Troyk@grp7.com Josh Quinn Vice President of Environmental & Safety - Joshq@grp7.com Cathy Brown Sales - cathyb@grp7.com Jenny Kinter Sales - jennyk@grp7.com Description: Sand and gravel supplier serving the Chicago area with an extensive line of IDOT approved products. Broken concrete and asphalt recyclers. CCDD dirt facilities. Inbound/outbound RAS. Truck Parking and yard space for rent.