Rob Martensen | Colliers International | Phoenix

Rob Martensen


Executive Vice President

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Professional Summary

Rob Martensen is an executive vice president with Colliers International and has specialized in the metro Phoenix industrial market for 23 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. Leveraging his knowledge of current and future market trends with Colliers’ exceptional research capabilities, he ensures clients are able to 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 and industry leader. He has been involved in over 600 transactions, including industrial and land sales, leasing and build-to-suits,

As an active member of Colliers and the community, Rob serves as the West Regional Director of SIOR, president of the Arizona Chapter of SIOR, is a member of the Leadership Council for Colliers in Arizona, and a Board member for Colliers AZ Cares—a charitable foundation. He is also involved with and supports Brokers for Kids, Anytown Arizona and Colliers’ Holiday Adopt-a-Family.

When not brokering industrial real estate, Rob is a semi-professional off-road race car driver and has won the prestigious Baja 1000 off-road race in Baja, Mexico.

Before joining Colliers in 1997, Rob worked in the residential real estate market.


  • 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
  • Ranked by Colliers | Arizona as a Top Producer in 2019, 2018, 2017, 2016, 2015, 2014 and 2008
  • 2019 – Colliers Everest Club, recognizing the Top 10% of Producers in the U.S.
  • 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

Memberships & Involvements

  • SIOR - Society of Industrial and Office Realtors - Arizona Chapter President
  • CCIM - Certified Commercial Investment Member
  • Colliers Industrial Services
  • Colliers International Logistics & Transportation Solutions Group
  • NAIOP, the Commercial Real Estate Development Association
  • Commercial Investment Real Estate Institute
  • NAR - National Association of Realtors
  • Colliers International | 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


Service Lines
Landlord Representation, Tenant Representation
Property Type
Industrial, Land
Logistics and Transportation Solutions Group

My Team

My Team

Featured Research
Jul 7, 2020
2020 Q2 Greater Phoenix Industrial Market Report
Greater Phoenix industrial net absorption ended Q2 up 2.7 MSF and 3.7 MSF year-to-date. Over-the-year vacancy increased only 70 bps to 7.7%. Under construction rose to 11.6 MSF. Asking rates increased nearly 4.2% over-the-year, reaching $0.58 PSF. The quarter closed with $320 million in sales volume.
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Apr 16, 2020
2020 Q1 Greater Phoenix Industrial Market Report
Greater Phoenix industrial net absorption peaked over 1 MSF in Q1 2020. Projects under construction increased 3.7 MSF from the end of 2019 to 14.3 MSF, while delivering 2.2 MSF this quarter. Sales volume reached $833 million during Q1. Vacancy rate remained low at 7.6 percent.
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Feb 11, 2020
2019 Q4 Greater Phoenix Industrial Market Report
Greater Phoenix industrial net absorption was 1.64 million square feet in Q4 and over 5 million square feet for all of 2019. Projects under construction increased to 10.5 million square feet, from Q2’s high of 8.9 million, with rents up 5.1 percent over-the-year to $0.59 per square foot.
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Featured News
Jul 13, 2020
Expanding online commerce drives industrial market growth
Colliers International reports the Greater Phoenix industrial real estate market remains healthy, despite business conditions during the pandemic. America’s growth in online purchasing is driving expanded demand for warehouse/distribution space.
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Apr 21, 2020
1Q 2020 industrial market report highlights strength before shutdown
Greater Phoenix Industrial market could be poised for a surge in demand for warehouse/distribution space, reports Colliers in Arizona. The stay-at-home orders from the coronavirus pandemic forced more people to shop online. Those lasting habits will increase online retailer demand for distribution space.
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Mar 10, 2020
Colliers International in Arizona announces 2019 top producers
Colliers International in Arizona announced its top producing agents for 2019. Four of the firm’s top producers were women. The company’s brokerage professionals exceeded 2018 performance by 13 percent, creating Colliers’ second-best year since entering the Arizona market.
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Feb 18, 2020
Phoenix industrial market maintains low vacancy
The Greater Phoenix industrial real estate market has a very healthy equilibrium in the midst of bringing millions of new square feet to its inventory, reports Colliers International. Vacancy remains below 10 percent after adding 6.4 MSF of new space in 2019, and 10.5 MSF under construction.
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