| Helms and Associates 416 N Production St . Aberdeen, SD 57401 PH: 6052251212 Fax: 6052253189 operations@helmsengineering.com | Lumacurve Airfield Signs 9115 Freeway Dr. Macedonia, OH 44056 PH: 8002581997 Fax: 3304672076 liz@lumacurve.com | 
| Billings Builders Exchange 2050 Broadwater Ave Suite A Billings, MT 59102 PH: 4066521311 Fax: 4066521391 bbx@billingsplanroom.com | Sioux Falls Builders Exchange 1418 N. C Avenue Sioux Falls, SD 57104 PH: 6053578687 Fax: 6053578655 info@sfbx.com | 
| Jensen Rock & Sand, Inc. PO Box 609 Mobridge, SD 57601 PH: 6058457213 Fax: 6058453014 Courtney@jensenrockandsand.com | Bismarck_Mandan Builders Exchange PO Box 550 Mandan, ND 58554 PH: 7016674322 Fax: 7016674322 bismanblderex@gmail.com | 
| Plains Builders Exchange, Inc. 220 N Kiwanis Ave Sioux Falls, SD 57104 PH: 6053348886 Fax: 6053340112 info@plainsbuilders.com | National Sealant & Concrete 18989 County Road 30 Crosby, MN 56441 PH: 9205887649 Fax: 9206946054 rwesnernsc@gmail.com | 
| Aberdeen Builders Exchange 302 N. Jackson St. Aberdeen, SD 57401 PH: 6052904210 Fax: 6052254733 dakotabuild@midconetwork.com | Northwest Asphalt & Maintenance 11560 190th St NE Thief River Falls, MN 56701 PH: 2186817581 Fax: 2186819984 nwa@nwamaintenance.com | 
| Muth Electric, Inc. 1717 N Sanborn Blvd, PO Box 1400 Mitchell, SD 57301 PH: 6059963983 Fax: 6059962203 JYeo@muthelectric.com | Lincoln Builders Bureau 5910 S 58th St Suite C Lincoln, NE 68516 PH: 4024218332 Fax: 4024218334 info@buildersbureau.com | 
| Muscha Pavement Marking, Inc. 16545 70th st SE Colfax, ND 58018 PH: 7013723690 Fax: 7013723427 mpm@rrt.net | Reede Construction 5237 Highway 12 E - STE 1 Aberdeen, SD 57401 PH: 6052257082 Fax: 6052254425 jbruns@reedeconstruction.net | 
| Bismarck Builders Exchange 215 Airport Rd, Ste 202 Bismarck, ND 58504 PH: 7012584215 Fax: 7012581391 info@bbxnd.com | Multi Electric Mfg. 10501 Franklin Ave., Suite 400 Franklin Park, IL 60131 PH: 7737221900 Fax: 7737225694 fkazienko@multielectric.com | 
| Lien Transportation PO Box 40 Aberdeen, SD 57402-0040 PH: 6052253814 Fax: 6052254707 nancya@lientransportation.com | Minnesota Builders Exchange 1123 Glenwood Ave Minneapolis, MN 55405 PH: 6123812647 Fax: 6123812621 jeffb@mbex.org | 
| Interstate Sealant & Concrete S40 W24211 Rockwood Way Waukesha, WI 53189 PH: 2625476316 Fax: 2625476844 sleppert@interstatesealant.com | FM Builders Exchange 1010 Page Drive Fargo, ND 58103 PH: 7012376772 Fax: 7012321653 info@fmbx.org | 
| ConstructConnect 3825 Edwards Rd #800 Cincinnati, OH 45209 PH: 5134585981 Fax: 8665708187 content@constructconnect.com | Dodge Data & Analytics 3315 Central Avenue Hot Springs, AR 71913 PH: 8443263826 Fax: 8886978198 elaine.wilson@construction.com | 
| Strata Corporation PO Box 13500 Grand Forks, ND 58208 PH: 7017754205 Fax: 7017755584 nicole.stennes@kniferiver.com | Rinker Pipe 901 E Ivy Ave Mitchell, SD 57301 PH: 6056302230 Fax: 6057180808 jason.vanroekel@rinkerpipe.com | 
| Construction Industry Center 2771 Plant St. Rapid City, SD 57702 PH: 6053435252 Fax: 6053434591 cic@constructionindustrycenter.com | Efraimson Electric, Inc. 19295 438th Ave Bryant, SD 57221 PH: 8778763434 Fax: 0000000000 estimator@efraimsonelectric.com | 
| Mark Sand & Gravel Co. 525 Kennedy Park Rd Fergus Falls, MN 56537 PH: 2187367523 Fax: 2187362647 estimator@marksandgravel.com | PEC Solutions of the Dakotas DBA Parsons Electric 3451 University Dr S Fargo, ND 58104 PH: 7015511455 Fax: 7013645686 keith.nelson@pecsolutions.com | 
| Fahrner Asphalt Sealers, LLC 6615 US Hwy 12 W Eau Claire, WI 54703 PH: 7158746070 Fax: 7158746717 Bridget.Zillmer@fahrnerasphalt.com | B & B Contracting, Inc. 1020 6th Ave SE PMB 354 Aberdeen, SD 57401 PH: 6052261468 Fax: 6057250469 melissah@bbcontractinginc.com | 
| Trinity Electric 651 E US Hwy 18 Menno, SD 57045 PH: 16053108742 Fax: 16053872040 jeremy.zeeb@trinityelectricsd.com | Wright & Sudlow, Inc. P.O. Box 1782 Aberdeen, SD 57401 PH: 6052252975 Fax: 6052255593 jeff.wrightsudlow@midconetwork.com | 
| Maxwell Asphalt, Inc. 650 South Delong Street Salt Lake City, UT 84104 PH: 7203237771 Fax: 3036800937 rob@maxwellasphalt.com | McGraw-Hill Dodge Report 1221 Avenue of the Americas New York, tx 77845 PH: 4807553581 Fax: 8669752122 dodge_reocwb@mcgraw-hill.com | 
| Construction Materials, Inc. 6725 Oxford Street St. Louis Park, MN 55426 PH: 6123467471 Fax: 9529290737 jimholte@constructionmaterialsinc.com | Superior Sawing and Sealing 1715 Liberty st Mora, MN 55051 PH: 7013714625 Fax: 3206799280 robertjhaase@yahoo.com | 
| Industrial Builders, Inc. P.O. Box 406 Fargo, ND 58107 PH: 7012824977 Fax: 7012811409 vnelson@industrialbuilders.com |