John Medak | Colliers International | Portland

John Medak

Senior Vice President

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Professional Summary

With more than 20 years in commercial real estate, John is one of the leading brokers in the Portland market. He assists in the representation of both tenants and landlords in the sale and leasing of commercial properties located throughout the Portland, Oregon metro area. From 1999 to 2018, John completed more than 1,300 leasing and sales transactions totaling in excess of $703 million in total consideration.


  • 2018 Runner up - CAB Office Team of the Year.
  • CoStar Power Broker: 2004, 2006, 2009, 2014 & 2017.
  • CAB Office Broker of the Year nominee 2011, 2014, 2015 and 2016
  • 2001 - National Association of Realtors recognized as one of the top 5 brokers in the country under the age of 30
  • 2009 - Runner-up for CAB Oregon & SW Washington’s Office Broker of the Year
  • 2014, 2011, 2010 - nominee for CAB’s Bill Naito Award, which recognizes the most complex regional transaction of the year
  • 1999 - nominated for CAB’s Rookie of the Year

Prior to joining Colliers International, John was a broker at NAI Norris, Beggs & Simpson and in the Bay Area for CB Richard Ellis. While at NBS, he was frequently recognized as a Top Deal Maker and Top Producer, and has been #1 Deal Maker of the Year from 2008-2014. In 2007 and 2008, he was named NAI Global’s Gold Member status, awarded to the top 3% of brokers in a 5,000-plus network.

Community Involvement:

  • Westside Economic Alliance
  • Salvation Army
  • St. Clare Parish


University of San Diego,
B.A., management and finance,
real estate emphasis

Memberships & Involvements

Commercial Association of Brokers of Oregon and SW Washington, BOMA


Service Lines
Tenant Representation, Landlord Representation
Property Type

My Team

My Team

Featured Research
Aug 26, 2020
Special Report: Evolution of Office Amenities Q&A
We interviewed top experts in office leasing, tenant representation, workplace strategy, and flexible workspace about the ways COVID-19 will impact office amenities moving forward. Here’s what they had to say.
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Jul 29, 2020
Portland Skyline Review - Q2 2020
This review takes a look at Portland’s most iconic towers. Premier criteria are as follows: 1) greater than 20 floors; 2) average annual asking rents above $40 PSF FSG; 3) RBA greater than 300,000 SF; 4) majority of RBA is office; 5) major renovation in the last 10 years; and 6) iconic to skyline. Each property must meet four of the six criteria.
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Jun 30, 2020
Q2 2020 Portland Metro Office Report
Limited new supply buffered the negative impact of the COVID-19 pandemic on absorption, with vacancy for the Portland market increasing 20 basis points over the quarter to 10.9%, the highest it has been since Q1 2014. The negative 38K SF of net absorption is an improvement over the year, since Q2 2019 saw negative 120K SF. Asking rates across the region increased 8.1% over the year and 1.8% over the quarter.
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