As Managing Director of Transwestern’s Southeast Investment Services Group (ISG) based in Atlanta, Jon Kleinberg and his partners Kevin Markwordt and Mike McGaughy oversee all of the firm’s investment sales brokerage services throughout the Southeastern U.S. The Southeast ISG team consistently ranks among Transwestern’s top investment sales producers.

Jon, Kevin and Mike offer a comprehensive and multifaceted background successfully marketing and negotiating the sale of a wide variety of assets including multifamily, office, retail and industrial. They have completed transactions throughout the Southeast, the Mid-Atlantic, and Texas/Southwest regions of the country. 


Jon has 27 years of commercial real estate experience in brokerage, dispositions, lending, and portfolio management. In his 19 years of investment sales brokerage, he has represented both private and institutional clients in the sale of investment properties valued in excess of $2.2 billion.
Prior to joining Transwestern, Jon spent 10 years with Insignia/ESG in the firm’s Capital Advisors Group, where he oversaw the firm’s investment sales services in Atlanta. He also spent seven years in the real estate department of the Traveler’s Insurance Company, where he concentrated on loan production, portfolio management, and asset disposition.


Jon is a licensed real estate salesperson in the States of Georgia, North Carolina, and South Carolina.


Jon received his bachelor’s in economics and government from St. Lawrence University and his masters of business administration from Duke University.