Huntington Ingalls Industries has purchased Colorado-based engineering services provider SM Stoller Corp. The acquisition has strengthened Huntington Ingalls' position in the nuclear services arena, according to Times Dispatch.

Under the terms of the said deal, Virginia-based Huntington Ingalls said the newly-acquired firm will operate under its Newport News Shipbuilding unit, the report said.

Stoller achieved the 66th rank on Engineering News-Record's list of the top 200 biggest environmental firms in the US for the year 2013. The company has listed annual revenue of $124.5 million. The company has 18 headquarters in the country and operates in 29 states, the report detailed.

The rest of the terms of the acquisition deal were not disclosed, the report added.

Stoller provides a range of environmental engineering services, but it is especially known for its work in the nuclear sector, Times Dispatch reported.

Huntington Ingalls builds and maintains both nuclear and non-nuclear ships for the US Coast Guard and Navy. The firm also provides after-market services for military ships worldwide. The company employs over 37,000 workers across Virginia, Louisiana, California, and Mississippi, according to its company website.