Top row (left to right) Lane Neville, Denise Nunez, Isy Sonabend, Mark Wilcke and Matt Harper. Bottom row (left to right) Andrew Warner, Laurel Lewis, Mike Kumelski, Troy Giammarco and Rick Foss.

      PHOENIX, ARIZONA (March 24, 2021) – NAI Horizon elevated a number of professionals to leadership positions as the brokerage and property management firm continued to grow in the midst of a trying year.

Lane Neville, who was promoted to Executive Vice President, was the office’s top producer for 2020. Denise Nunez, last year’s top producer was No. 2 on the list and was promoted to Managing Director.

Neville has been with NAI Horizon for 10 years. He is the brokerage team leader for the Investment Services Group (ISG) and the Special Asset Solutions group (SAS).   Besides garnering Top 10 producer honors in 2020, he also closed the firm’s largest sale transaction last year. Neville has been a Top 10 producer at NAI Horizon for the past 9 years.

Nunez, who has been with NAI Horizon for 6 years, leads the Nunez Self Storage Group. She possesses more than 28 years of self-storage expertise and $300 million in total sales. She was also the Top Producer for 2018 at NAI Horizon and has been in the Top 10 for the past five years.

Other brokerage professionals among the Top 10 producers of 2020 who were promoted include Mark Wilcke, to Executive Vice President; Matt Harper, CCIM, to Senior Vice President; and Troy Giammarco, Mike Kumelski, and Andrew Warner, to First Vice President.

“The performance of our Top 10 for 2020 was exceptional,” NAI Horizon CEO/Designated Broker Terry Martin-Denning said. “This group stayed engaged and focused, working hard to help their clients navigate the market and find opportunities in a very challenging year.”

NAI Horizon’s broker ownership platform allows agents to benefit from both personal achievement and the success of the company while encouraging a collaborative culture. This platform prioritizes broker needs while offering global reach and resources.

The list of 2020 Top Producers reflects the success of the broker ownership platform and the overall positive trends in the Phoenix commercial real estate market with a range of specialties represented: investment sales, industrial, office, self-storage and retail properties.

NAI Horizon’s 2020 Top Producers:

  1. Lane Neville, Investment Sales / Land
  2. Denise Nunez, Investment Sales – Self Storage
  3. Isy Sonabend, Industrial
  4. Mark Wilcke, Industrial / Land
  5. Matt Harper, CCIM, Retail
  6. Andrew Warner, Investment Sales – Manufactured Housing
  7. Laurel Lewis, Office
  8. Mike Kumelski, Retail
  9. Troy Giammarco, Office
  10. Rick Foss, Industrial

About NAI Horizon

Exceptional global commercial real estate solutions begin with local market leadership and expertise. Established in 1992, NAI Horizon is a full-service commercial real estate company serving Arizona with offices located in Phoenix and Tucson.  NAI Horizon is passionate about the commercial real estate business, providing Brokerage and Property Management Services for local, national and international clients. NAI Horizon is a member of the NAI Global commercial real estate network providing real estate solutions to 375+ offices worldwide. For more information visit

About NAI Global

 Advisory Services, Leasing, Property Management, Property & Note Sales and Tenant Representation

NAI Global is a leading global commercial real estate brokerage firm. NAI Global offices are leaders in their local markets and work in unison to provide clients with exceptional solutions to their commercial real estate needs. NAI Global has more than 375 offices strategically located throughout North America, Latin America and the Caribbean, Europe, Africa and Asia Pacific, with 6,000 local market professionals, managing in excess of 1.15 billion square feet of property and facilities. Annually, NAI Global completes in excess of $20 billion in commercial real estate transactions.

NAI Global professionals achieve extraordinary results for clients locally and globally through creativity, collaboration and the consistent delivery of exceptional knowledge and service that only market-leading firms can provide. NAI Global provides a full range of corporate real estate services, including brokerage and leasing, property and facilities management, real estate investment and capital market services, due diligence, global supply chain and logistics consulting and related advisory services. To learn more visit: