THP Limited originated in 1964 when Art Miller, Lou Tallarico, Keith McNinch, and Don Hoeffel formed the partnership of Miller, Tallarico, McNinch, and Hoeffel. In 1973, Tallarico and Hoeffel formed a new partnership which also included Mark Hoffman and William Schneider and called the firm Tallarico,
Hoeffel, and Partners or THP. To allow additional partners, THP became a Limited Partnership Association in 1978 and the name changed to THP Limited. In 1998, THP Limited incorporated and today has grown to a widely held ownership of 18 principals with two office locations.