ADR Partners LLC, a Newtek Business Services Corp. portfolio company, has been served with a search warrant by the Federal Bureau of Investigation at its offices in Westfield, Ind.

ADR Partners operates as banc-serv Partners LLC. Newtek made a $5.4 million investment in the provider of outsourced solutions for the U.S. Small Business Administration lending process in June 2016. Newtek said it is cooperating fully with the authorities.