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Pete McNally is the founder and principal of The Grinnell Group.  Mr. McNally began in the industry during its infancy, working on market launches for Nextel in Boston and VoiceStream / T-Mobile in Denver.  Over the last twenty-four years, Mr. McNally has developed expertise in all phases of site acquisition and deployment.  Since 2014, Mr. McNally has been heavily involved in small cell master agreements and build outs.  Additional experience includes work for and consulting to local governments, providing a deep understanding of both public and private sector perspectives. His expertise includes project management, public hearing presentations, regulatory analysis, government relations, and lease negotiations. Mr. McNally is a 1990 graduate of Iowa State University with a B.S. in Community and Regional Planning.


Jenni Bowles has worked in the wireless industry for 12 years. Prior to joining the Grinnell Group in 2017, she worked for ten years at Iowa Wireless Services, LLC as a Project Coordinator in the Real Estate and Site Acquisition Department.  Ms. Bowles’ main responsibilities included coordinating and providing information to site acquisition consultants, tracking progress of wireless projects through the site acquisition process, routing real estate agreements, contracts and invoices through the signature process, maintaining the company facilities and site rent payables spreadsheets, as well as researching any rent discrepancies, and working with landlords and tenants on any issues that would arise. In 2015, she began building an online database for the Real Estate Department to organize and track the company’s portfolio of 400-plus tower lease and facilities agreements and their financial obligations. The database streamlined internal processes and became instrumental in the exchange of information during the T-Mobile acquisition in 2018.


Brian DePrez came to The Grinnell Group in 2018 and has extensive experience and expertise in wireless site acquisition, real estate development, and right of way acquisition and relocation services. In addition to site acquisition for the Grinnell Group, he previously worked for Wireless Facilitates, Inc. as a Site Acquisition Specialist acquiring tower space for SunCom/AT&T on their Iowa buildout. He also worked for US West Cellular, US Cellular, and VoiceStream for over 10 years in sales and sales management during the 1990’s and early 2000. Prior to joining The Grinnell Group, Mr. Perez worked at Snyder & Associates for four years as a Real Estate Acquisition & Relocation Agent and has been instrumental in the direct negotiations with owners and tenants, as well as creating and producing all necessary documents and correspondence.   He was previously employed by Casey’s General Stores as a Real Estate and Store Development Associate. His primary responsibility was acquisition of real estate for the expansion of new and existing locations.  Mr. DePrez has substantial experience working with government entities including city councils, as well as planning and zoning, to secure necessary approvals. In addition to his tenure with Casey’s, Mr. DePrez has over a decade of experience in residential real estate with Coldwell Banker. 


Rick Holpp has 29 years of Project Management experience in land use planning, site acquisition, entitlement management, construction management and real estate.  He has worked a total of 14 years performing site acquisition and project management for AT&T, T-Mobile, Nextel Communications, Western Wireless, VoiceStream and I-Wireless.   This work included project launches, new site builds, site modifications and easement procurement for fiber in numerous states from the east to west coast.   Many of these projects included the management of site acquisition teams.  Mr. Holpp has also worked as an employee or consultant for large and small homebuilders including KB Home, Lennar, Meritage, and Oakwood Homes.  He has performed overall project management, which included due diligence project start up, design, budgeting, scheduling, entitlement management, bid processing and construction management.   Most of this work included managing large projects from inception to completion over a 2- to 4-year period.  He has also operated a successful site acquisition and project management consulting Company, Site Dynamics Incorporated, since 1999. 

About: TeamMember


With project experience in 30 states, The Grinnell Group has garnered an in-depth understanding of the wireless industry and the site acquisition process. We couple this understanding with research and analysis of the unique circumstances and local conditions affecting each project. Our results-based approach successfully balances time constraints, business costs, and political realities to fulfill our clients' business objectives.

Wireless planning and development requires dynamic solutions. We rely upon flexibility and personal attention to ensure the highest responsiveness to our client's changing needs.

We provide a full range of site development and tower asset management services.


Want to experience the expertise of The Grinnell Group for yourself? Give us a call today and let’s discuss what we can do for you.

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