| Company | Address | City | State | Country | Zip | Contact | 
				| Campanella & Sons, Inc. | 39207 N. Magnetics Blvd. P.O. Box 32 | Wadsworth | IL | United States | 60083 | Mary Kenar mary@campanellaandsons.com
 Tel: 847-336-9698
 
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				| Bolder Contractors Inc. | 316 Cary Point Drive | Cary | IL | United States | 60013 | Doug Abbey doug_abbey@yahoo.com
 Tel: (847) 236-0785
 
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				| Peter Baker & Son | 1349 Rockland Road | Lake Bluff | IL | United States | 60044 | John Brunner john@peterbaker.com
 Tel: 847-362-3663
 
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				| Berger Excavating Contractors, Inc | 1205 Garland Rd. | Wauconda | IL | United States | 60084 | Kyle Berger kberger@bergerexcavating.com
 Tel: 847-526-5457
 
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				| PirTano Construction Company | 1561 Armitage Court | Addison | IL | United States | 60101 | Debbie Knepper debbie.knepper@pirtano.com
 Tel: 630-932-1810
 
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				| Rausch Infrastructure, LLC | 1111 E Touhy Ave, Suite 120 | Des Plaines | IL | United States | 60618 | Matthew Kovalsky mjkovalsky@riccllc.com
 Tel: 7086670165
 
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				| Lake County Grading Company, LLC | 32901 N. Highway 21 PO Box L | Libertyville | IL | United States | 60048 | Dave Meservey d_meservey@lcgc.com
 Tel: 847-362-2590
 
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				| A Lamp Concrete Contractors, Inc. | 1900 Wright Blvd. | Schaumburg | IL | United States | 60193 | Nicole Engelking NENGELKING@ALAMPCONCRETE.COM
 Tel: 8478916000
 
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				| Databid | 330 S State St | Newtown | PA | United States | 18940 | Tania Campbell tania@databid.com
 Tel: 630-506-6003
 
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				| chicagoland | P.O. Box 3533 | Peoria | IL | United States | 61614 | bo kim bodedi3@aol.com
 Tel: 3094016167
 
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				| Alliance Contractors, Inc | 1166 Lake Avenue | Woodstock | IL | United States | 60098 | Scott A. Marquart estimating@alliancecontractors.com
 Tel: 815.338.5900
 
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				| Plote Construction Inc. | 1100 Brandt Drive | Hoffman Estates | IL | United States | 60192 | David A. Miller bids@plote.com
 Tel: 847-695-9300
 
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				| Trafic Services Inc. | 425 Miles Parkway | Bartlett | IL | United States | 60103 | Felix Giammarino felixg@tsi6.com
 Tel: 6304973478
 
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				| D2K | 1251 Frontenac Rd | Naperville | IL | United States | 60563 | Eric Holst eric.j.holst@gmail.com
 Tel: 224-523-5671
 
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				| ARCHON CONSTRUCTION CO | 553 Route 53 | ADDISON | IL | United States | 60101 | Mike Allenstein mike@archononline.com
 Tel: 6304950015
 
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				| Thorne Electric, Inc. | P.O. Box 321 | Wheaton | IL | United States | 60187 | Shelly Thorne shellythorne@thorneelectricinc.com
 Tel: 6306684853
 
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				| Martam Construction, Inc. | 1200 Gasket Drive | Elgin | IL | United States | 60120 | Liz Aderton liz@martam.com
 Tel: 847-608-6800
 
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				| ConstructConnect | 3825 Edwards Rd. Suite 800 | Cincinnati | OH | United States | 45209 | Marlo Whetstone marlo.whetstone@constructconnect.com
 Tel: 5134585966
 
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				| Hard Rock Sawing & Drilling Specialist | N628 SE Bass Lake Rd | keshena | WI | United States | 54135 | Estimating hardrock@genevaonline.com
 Tel: 715-799-3823
 
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				| LCDOT | 600 W Winchester Road, Libertyville, IL  60048 | Libertyville | ID | United States | 60048 | LCDOT Staff LCDOTBidInfo@lakecountyil.gov
 Tel: 8473777400
 
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				| Lake County Division of Transportation | 600 W Winchester Road, Libertyville, IL  60048 | Libertyville | IL | United States | 60048 | Dan Smith dsmith@lakecountyil.gov
 Tel: 8473777494
 
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				| superior road striping | 425 miles parkway | bartlett | IL | United States | 60103 | joe jsyario@highstartraffic.com
 Tel: 6308787062
 
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				| Quality Saw & Seal, Inc. | 7600 W. 79th Street | Bridgeview | IL | United States | 60455 | Jennifer Lamb jlamb@qualitysawandseal.com
 Tel: (708) 728-1895
 
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