Jeffrey E. Mack is a senior leader in Newmark’s Philadelphia operation. He has been a significant member of the commercial brokerage community in Philadelphia since 1979. He co-founded Smith Mack & Co. in 1984 and has continued to lease and sell more suburban office space than any other individual agent. He served as past chairman of the Philadelphia Board of Realtors, commercial and industrial division. Newmark acquired Smith Mack & Co. in 2012.
Mr. Mack’s select clients include SunGard, eBay - GSI Commerce, Reliance Standard Life, Johnson Matthey, Johnson & Johnson, Oppenheimer & Co., Day & Zimmermann, Kynetic, Bimbo Bakeries (Grupo Bimbo), LNR Partners, Vanguard, Main Line Health, Jefferson Health System, Pennoni Associates, Kensey Nash, Keystone Property Group, Equus Capital Partners, The Davis Companies, Liberty Property Trust, Prologis, and Brandywine Realty Trust.
Among his substantial tenant representation accomplishments, Mr. Mack has completed 85 transactions representing SunGard including the 150,000 SF Wayne, Pennsylvania Headquarters, 120,000 SF consolidation in New York City, and 127,300 SF consolidation in London. Multi-market transactions for SunGard include London, Frankfurt, Stockholm and U.S. locations Chicago, Philadelphia, Boston, Jacksonville and Jersey City. He has also completed over 1.3 million square feet in transactions representing Wyeth Laboratories, and 50,000 square feet for Pennoni Associates.
Mr. Mack’s development site and investment sales includes Westlakes Office Park (56 acres), Bay Colony Executive Park (30 acres), Devon Square Office Complex (16 acres), 1000 Chesterbrook Blvd (173,036 SF), Wyeth Laboratories HQs (1.2M SF), Szeles Office Portfolio (460,486 SF), Croton Road Corporate Center (11.8 acres), Highview at Providence Corporate Center (175,000 SF), and Plymouth Corp. Center (16 acres), 300 Four Falls (300,000 SF), 400 W. Elm, Conshohocken (340,000 SF), The Merion Building (75,000 SF), CrossPoint at Valley Forge (272,360 SF), Devon Park Corporate Campus (290,185 SF) and APEX, Ft. Washington (400,000 SF).
Mr. Mack has been involved in the community as a past board member of the Committee of Seventy, Natural Lands Trust, The Baldwin School, Bryn Mawr Hospital Foundation and is a member of Squires Golf Club, The Everglades Club, Gulph Mills Golf Club, Overbrook Golf Club, and The Union League of Philadelphia.
Professional Affiliations
- Executive Leaders Radio - Show Host since 2010
- CoStar Power Broker Award
- Philadelphia Board of Realtors - C & I past Chairman Commercial & Industrial Division
- CB Richard Ellis - Top Salesman Award and Top Five Award five consecutive years
- Brandywine Realty Trust - Broker Recognition Award
- Alliance Francaise (Philadelphia) - Former Treasurer
- French American Chamber of Commerce - Member
- French International School of Philadelphia - Board Member
- Lower Merion Conservancy - Board Member
- Bryn Mawr Hospital Foundation - Board Member
- Committee of Seventy - Board Member