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Rob Martensen | Colliers | Phoenix

Rob Martensen


Senior Executive Vice President

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Professional Summary

Rob Martensen is a senior executive vice president with Colliers and has specialized in the metro Phoenix industrial market for 24 years.

His industrial expertise includes single- and multi-tenant building sales and leasing, land sales, build-to-suits, ground-up speculative developments, and landlord and tenant representation.

Rob is an expert in analyzing market conditions, with a precise knowledge of current lease rates and values. He leverages his knowledge of current and future market trends with Colliers’ exceptional research capabilities to ensure clients can make smart, profitable, and informed real estate decisions.

Whether working with developers, landlords or tenants, Rob understands each client’s business challenges and develops tactical recommendations and real estate solutions focused on accelerating their success.

Transactions are aligned with his clients’ business objectives to meet or exceed their financial goals. His organizational skills ensure transactions close in a timely manner.

Rob is recognized as a top-producing industrial broker, an industry leader, and a relationship-driven broker. He has been involved in more than 700 transactions, including industrial and land sales, leasing and build-to-suits.


  • Colliers Everest Club, recognizing the Top 10% of Producers in the U.S. - 2021, 2020, 2019
  • Ranked as Top Producer in 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014 and 2008, Colliers in Arizona
  • West Regional Director - SIOR, and past President of the Arizona Chapter of SIOR - 2019-2021
  • Member of the Society of Industrial & Office Realtors® (SIOR), which is the leading professional commercial and industrial real estate association. The SIOR designation is a professional symbol of the highest level of knowledge, production, and ethics in the real estate industry.
  • 2019-2021 - West Regional Director, SIOR
  • Past President of the Arizona Chapter of SIOR
  • Certified Commercial Investment Member (CCIM) designation of the Commercial Investment Real Estate Institute
  • 2018 – All-In Award for Colliers | Arizona for being fully committed to moving to the next level and to setting winning strategies for the future
  • Twice nominated for the NAIOP Industrial Broker of the Year
  • Featured as Broker of the Month in Commercial Executive Magazine
  • Chosen as an Arizona Business Leader by AZ Big Media


  • Bachelor of Arts, Psychology, Arizona State University
  • Associate Broker's License, Arizona Dept. of Real Estate

Memberships & Involvements

  • SIOR - Society of Industrial and Office Realtors - Arizona Chapter President
  • CCIM - Certified Commercial Investment Member
  • Colliers Industrial Services
  • Colliers Logistics & Transportation Solutions Group
  • NAIOP, the Commercial Real Estate Development Association
  • Commercial Investment Real Estate Institute
  • NAR - National Association of Realtors
  • Colliers | Arizona Leadership Council
  • Colliers AZ Cares Board
  • KOLBE Index 8534


  • The Rockefeller Group Development Corporation
  • EastGroup Properties
  • First Industrial
  • Harsch Investment Properties
  • Irgens Development
  • Liberty Property Trust
  • The Alter Group
  • AEW Capital Management
  • Holualoa
  • Milgard Windows
  • The Koll Company
  • California Closets


“I’ve had several opportunities to work with Rob during the past 18 years. In every instance he provided professionalism, hard work, an understanding of the assignment, a commitment to the client’s needs, and results.”—Barry Bartle, Stockdale Management, LLC

“I’ve known the Colliers Industrial Property Services team for more than 20 years. They have great market knowledge, deliver exceptional service and consistently look out for their clients’ best interests. The bottom line is I can trust them. That’s why they will continue to handle The Rockefeller Group’s acquisition and leasing for many years to come.”—Thomas E. McCormick, SIOR, Senior Vice President, Rockefeller Group Development Corporation

“Rob stands out as a remarkable producer and leader both within the Colliers community and the real estate industry overall. The prestigious senior executive vice president title is only held by six active Colliers Arizona brokers and is given as acknowledgement to our most outstanding and respected professionals. In addition, he serves as a west regional director of SIOR and contributes a great deal to our Greater Phoenix community.”—Bob Mulhern, senior managing director, Colliers in Arizona.


Service Lines

Landlord Representation, Tenant Representation

Property Type

Industrial, Land


Logistics and Transportation Solutions Group

My Team

Featured Research

Jan 26, 2023

2022 Q4 Greater Phoenix Industrial Report

The fourth quarter outperformed the previous quarter despite the looming fear of a recession. The Phoenix Industrial market has positioned itself with positive momentum.
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Jul 22, 2022

2022 Q2 Greater Phoenix Industrial Market Report

Despite the economic headwinds that are feared in the US economy, the Phoenix MSA is showing and extremely healthy performance.
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Featured News

Nov 8, 2022

Construction of Phoenix industrial space hits 40.9M square feet

The amount of industrial space under construction in Greater Phoenix indicates the furious pace that developers have taken to satisfy historic demand in the marketplace.
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Jul 29, 2022

Greater Phoenix Industrial Market posts historic quarter

Vacancy falls to 2.6 percent with 35.2 million square feet under construction
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