MULLINAX is a name that has been trusted on construction sites, on ranches and in the homes of our neighbors for 60 years in Northeast Wyoming and Southern Montana. Quality of service and product has been the driving force behind our commitment to our customers since Jack Mullinax opened the doors to Mullinax Concrete Service Co. in 1952.

MULLINAX provides outstanding services and value to each customer.  We practice our core values in our work, giving our customers an experience of trust and customer advocacy that is unique in the business.  We seek to positively serve our community in a wide spectrum of multiple industries and facility types.

MULLINAX has our sights set on the future and look forward to each project and new challenge with enthusiasm and confidence in our products, services, and knowledge.



615 FORT ROAD · PO BOX 2044


PHONE  (307) 674-4466

     FAX   (307) 674-6871

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Hours Of Operations:

Mon - Fri : 7:30 A.M. - 4:00 P.M.

Sat & Sun : Closed