United Companies are incorporated as manufactures of Petroleum Surface Production Equipment. Our products are also used in the Chemical, Industrial, and Water Supply industries.

Located east of Longview, TX United Vessel & Tank has the capability to produce equipment to API, UL, and AWWA specifications. Our products are primed, painted, and coated according to customer preference with a wide variety of colors and coating from which to choose. 

United Process Systems based in Lafayette, LA manufactures, delivers, and installs automated A.S.M.E. and Non – Code production packages and safety systems throughout the southern United States. Their in house measurement division is equipped to remanufacture and service a variety of orifice meters and associated accessories. 

United’s combined 43,000 square feet of manufacturing space gives it the ability to construct and furnish vessels and tanks to fit customer specifications and needs. This includes trailer mounted vessels and tanks for temporary job sites. United personnel will also provide free onsite estimates. 

The principals of United Companies have over 100 years combined experience in the manufacturing and service of our product line. We believe that quality alone does not guarantee success and that service must be the cornerstone of any beneficial business relationship.

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