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John Susanin | Colliers | Conshohocken

John Susanin

Senior Managing Director

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Professional Summary

John Susanin joined Colliers in 2013.  His focus is on leasing and sales in suburban Philadelphia and throughout northeastern and central Pennsylvania.  In addition to representing many notable property owners, John has completed multiple tenant representation assignments for regional, national and international clients.

Prior to joining Colliers, John was a partner at SSH where he opened and led their suburban office for 4+ years.  Prior to SSH, John spent 11 years at GVA Smith Mack, where he was a top producer in their suburban office and received the "Largest Transaction" award in 2005.


Widely recognized as a top broker in PA, John is also actively involved in the community, most notably as Chairman of the Board of  the American Red Cross Delaware Valley Chapter where he has volunteered for over 30 years.


MBA | Temple University Fox School of Business and Management
BA | University of Richmond


Arkema Inc., Automatic Data Processing Inc., BPG Properties Ltd., Chase Manhattan Bank, Exxon Mobile Corporation, FirstEnergy Corp., Bimbo Bakeries, Guardian Life, Johnson Matthey, Keystone Property Group, LoJack International, NAVTEQ, O'Neill Properties Group

Featured Research

May 9, 2022

Q1 2022 Lehigh Valley Office Report

Colliers Research covers the Lehigh Valley county office market in Pennsylvania for Q1 in 2022, including leasing, absorption rates, and vacancies.
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Feb 21, 2022

2021 Q4 Northeastern Pennsylvania Office Market Research Report

The Northeastern PA office market remained relatively stable during the first quarter with a small gain in occupancy due to activity from smaller tenants.
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Sep 16, 2021

2021 Q2 Northeastern Pennsylvania Office Market Research Report

The overall vacancy rate in Northeastern PA increased during the 2nd quarter, but results were mixed by building class.
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Featured News

Apr 5, 2021

Colliers is Exclusive Agent for Millennium Campus of Conshohocken

Move Comes as Rare Big Block Space Becomes Available
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Jan 14, 2021

Colliers Concludes Sale of Landmark Bicentennial Building of Public Square

Despite COVID, Resurgent Wilkes-Barre CBD Continues to See Investment
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