Philadelphia-based commercial real estate firm Smith Mack has joined Newmark Knight Frank's global platform. The firm will now be doing business as Newmark Knight Frank Smith Mack (NKFSM).

Founded in 1984, Smith Mack has offices in Center City Philadelphia, Suburban Philadelphia, Delaware and Southern New Jersey. The firm handles tenant and owner representation, property management and investment sales.

Key executives of Smith Mack's 55-person staff include founding partner Jeffrey E. Mack, and partners Neal F. Dangello, William Elliman, Keri Lorenson, and James P. Mullarkey, Esq. The company's ownership will remain unchanged.

With more than 6,300 employees, Newmark Knight Frank’s headquarters is located in New York. Newmark Knight Frank and London-based partner Knight Frank operate out of more than 200 offices on six continents.

"Regional firms such as ours realize that in order to accommodate our larger global clients, it is important to be part of a worldwide platform that provides additional infrastructure and support," said Reid Blynn, managing partner of Smith Mack.