DALLAS—U.S. Risk Insurance Group Inc. says it has acquired Sarasota, Fla.-based Unisource Program Administrators to expand its workers compensation footprint.

Dallas-based U.S. Risk is a privately owned specialty lines underwriting manager and wholesale broker offering a range of insurance products. Its workers comp offerings have been available primarily in Texas, the Midwest and West Coast, said U.S. Risk CEO Randall Goss.

Meanwhile, Unisource is a workers comp managing general agent with product offerings in Florida and the Southeast, Mr. Goss said.

“They have a territorial footprint that complements ours,” Mr. Goss said. “We have not done much of this business in the Southeast and nearly all of their business is in the Southeast, so its very natural footprint expansion for us.”

Terms of the deal announced Monday were not disclosed, but U.S. Risk said that the acquisition doubles its workers comp written premiums.