The Suffolk County District Attorney, Thomas J. Spota, has offices in five different locations throughout the county with headquarters in Hauppauge. The Riverhead office is located in the Arthur M. Cromarty Court Complex and contains the following bureaus: homicide, major crime, child abuse and domestic violence, appeals and narcotics. Spota, a Democrat, has held the elected position since 2001 and last ran in 2009, unopposed.
Perl Grossman & Associates is an accounting firm that specializes in business entity selection, estate planning, financial planning and tax preparation. The firm is home to certified public accountants Michael Grossman and Allen Perl.