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Marc Isdaner | Colliers | Mount Laurel

Marc Isdaner

Senior Managing Director

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Professional Summary

Marc specializes in the leasing and sale/acquisition of commercial and industrial properties in Southern New Jersey, including landlord and tenant representation. Marc manages the Colliers Mount Laurel office and is a partner of the firm. 


Marc has represented many local and national firms in the leasing and sale of most types of commercial and industrial properties. He is especially adept at developing and implementing marketing campaigns for the properties and clients he represents.

Marc is involved in various real estate-related organizations and has been a speaker for the New Jersey Tax Assessors Continuing Education Program, South Jersey Appraisal Institute and Businesses Committed to Burlington County. He is also a former President of the Camden County Division of The American Heart Association and the recipient of numerous awards and leadership recognition by the New Jersey State Affiliate.  


  • Recipient - Colliers Philadelphia Top Industrial Sales Award: 1998, 2001, 2004–2009, 2011–2018, 2020
  • Colliers North America/Latin America Top 10% Producer: 2012–2013, 2015–2021
  • CoStar® Power Broker Award - Top 20 Industrial Leasing Broker:  17 consecutive years, 2003–2020
  • Recipient: Colliers L&A Leadership Award 
  • Recipient: Colliers L&A Jacob Axilbund Award for extensive charitable work
  • American Heart Association Advocacy Volunteer Award
  • Record Holder, Guinness Book of World Records 


BS | Management
Boston University-Magna Cum Laude

Memberships & Involvements

  • Candidate for SIOR (Society of Industrial and Office Realtors)
  • Member of the National Association of Realtors
  • Member of the TriState REALTORS® Commercial Alliance 
  • New Jersey Broker and Sales License
  • Board Member of Businesses Committed to Burlington County (BC2)
  • Southern New Jersey Chamber of Commerce



Alliance Partners HSP
Bloom Organization
Bluewater Property Group
CoreOne Industrial
Dermody Properties
Endurance Real Estate Group
First Industrial Realty Trust
GFI Partners
Granite REIT
Korman Commercial Properties
Liberty Property Trust
Link Industrial Properties
NFI Real Estate
RREFF Management
Scout Capital Partners
Velocity Ventures
Walton Street Capital Partners
Wharton Industrial


Dependable Distribution
General Floor Carpet & Mechanic Supply
HD Supply
Hill Rom Company
Holt Logistics
Krannich Solar
MSH Supply (Lowe’s)
NFI Industries
UPS Logistics



"Marc is a true professional. His knowledge of the marketplace and his ability to translate that into a business model is impressive. Marc's knowledge of institutional real estate, its goals and objectives, makes him a true value to our organization. He is First Industrial's eyes and ears in Southern New Jersey. Marc is very service oriented, his contacts in other disciples of real estate make the sales or leasing process easier. Marc is also a mentor to the junior people on his staff. He truly is interested in the "team". Marc is a true professional and I am proud to call him a friend."  Richard Vanderbeck, Regional Manager, First Industrial Realty Trust, Inc.

"As the agent for Korman's Interstate Business Park for more than 10 years, Marc has become a trusted partner who consistently provides clear and practical ideas to market the properties here.  He has a deep understanding of commercial real estate, especially in Southern New Jersey, and has the ability to quickly assess the challenges in the market and effectively navigate solutions.   This translates to a measured tangible return to the  bottom line.  We value his insight and guidance and have found the experience of working with him -- and having access to the resources of the entire Colliers organization -- to be nothing less than professional. "  Jerry Segal, Sr. VP, Korman Commercial Properties, Inc.




Service Lines

Landlord Representation, Tenant Representation

Property Type


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