About Us

In addition to serving as Vice Chairman of Vertical Bridge, Marc Ganzi is Chief Executive Officer of DigitalBridge and has been an investor and operator in the digital infrastructure sector for more than 25 years. Mr. Ganzi has led DigitalBridge’s transformation to become a premier platform for digital infrastructure and real estate investment.

Mr. Ganzi originally founded Digital Bridge Holdings in 2013 and, as its CEO, built the firm into a leading global manager of digital infrastructure assets with more than $20 billion in AUM, until its merger in July 2019 into the current public company, DigitalBridge Group, Inc.

Previously, Mr. Ganzi founded Global Tower Partners (“GTP”), which grew to become one of the largest privately-owned tower companies in the U.S. under his leadership before being acquired by American Tower Corporation in 2013 for $4.8 billion. At GTP, Mr. Ganzi executed a series of strategic acquisitions, build-to-suit agreements with wireless carriers, and financings in the credit markets.

Prior to the formation of GTP, Mr. Ganzi worked as a consulting partner for DB Capital Partners from 2000 to 2002 where he oversaw the institution’s investments in the Latin American tower sector. Before joining DB Capital, Mr. Ganzi co-founded and served as President of Apex Site Management, one of the largest third-party managers of wireless and wireline communication sites in the United States. In 2000, Apex merged with SpectraSite Communications to create one of the largest telecommunications site portfolios in the United States at the time.

In 1990, Mr. Ganzi served as an assistant Commercial Attaché in Madrid for the U.S. Department of Commerce’s Foreign Commercial Service Department. He also served as a Presidential Intern in the White House for the George H.W. Bush administration with the Office of Special Activities and Initiatives for the Honorable Stephen M. Studdert in 1989.

Mr. Ganzi received a Bachelor of Science from the Wharton School of Business in 1993. He was a Board Member of the Wireless Infrastructure Association from 2008 to 2017 and served as Chairman from 2009 to 2011. He is a member of the Young Presidents’ Organization and the Broadband Deployment Advisory Committee of the Federal Communications Commission.

Alex Gellman is the Executive Chairman and Co-Founder of Vertical Bridge, the largest private owner and operator of wireless communications infrastructure in the U.S.

Mr. Gellman is also a Senior Advisor and Co-Founder of DigitalBridge (NYSE: DBRG), a leading global alternative asset manager dedicated to investing in digital infrastructure.

He currently serves as Chairman of the Board of Directors of the Wireless Infrastructure Association, and on the Boards of EdgePoint Infrastructure and Highline do Brasil, leading private tower companies serving Southeast Asia and Latin America, respectively.

Prior to co-founding Vertical Bridge, Mr. Gellman was President and COO of Global Tower Partners and was instrumental in growing the company into the largest privately held tower company in the U.S. at the time of its sale to American Tower Corporation in 2013. Previously, Mr. Gellman served as President and COO of Sonitrol Corporation, a leading provider of verified electronic security solutions in North America, which sold to Stanley Works (NYSE: SWK) in 2008.

Earlier in his career, Mr. Gellman co-founded Apex Site Management, the largest third-party manager of wireless and wireline communications sites in the U.S., which merged with SpectraSite Communications in 2000 to create the largest telecommunications site portfolio in the country. He also co-founded and served as VP of Development of Horizon Cellular Group, a McCaw Cellular-backed company that acquired, developed, and operated rural cellular franchises across the eastern U.S.

For his decades of service to the wireless industry, Mr. Gellman was named as a 2023 inductee into the Wireless History Foundation’s Wireless Hall of Fame.

Mr. Gellman is a graduate of The Wharton School of Business with a Master of Business Administration degree in Finance and Accounting and holds a Bachelor of Science in Biology from Tufts University.

Ron Bizick is the President and Chief Executive Officer of Vertical Bridge. He has more than 35 years of telecommunications industry experience and oversees the firm’s day-to-day operations, as well as overall strategy and growth initiatives.

Prior to joining Vertical Bridge, Mr. Bizick co-founded and served as the Chief Executive Officer of Tarpon Towers, LLC, which develops, acquires, and manages wireless communication sites throughout the United States. Earlier in his career, he served as the Executive Vice President and Chief Operating Officer of Global Signal, Inc., before its acquisition by Crown Castle in 2007. During his tenure at Global Signal, the company completed a successful IPO and tripled its portfolio from 3,500 to over 11,000 owned and managed communication sites. Prior to Global Signal, Mr. Bizick was the Executive Vice President and Chief Operating Officer of SBA Communications, where he played a significant role in its growth from a start-up to a nationwide public company.

He received his Bachelor of Arts from the University of Pittsburgh and completed executive education programs at The Wharton School and Harvard Business School.

Bob Glosson is the Executive Vice President and Chief Operating Officer of Vertical Bridge. Mr. Glosson is responsible for overseeing all engineering, operations, real estate, and information technology for the company.

Prior to joining Vertical Bridge, Mr. Glosson was the President and Chief Operating Officer of Eco-Site, a leading developer of wireless communication, tower sites, and infrastructure. As President and COO of Eco-Site, Mr. Glosson was responsible for nationwide sales, tower development, and operations. Earlier, Mr. Glosson served as Senior Vice President of Global Sales at Bandwidth.com, an enterprise cloud communications company, and as Executive Vice President of Sales and Marketing for Shared Access, a wireless tower operator in the U.K. and Ireland. Before Shared Access, Mr. Glosson held increasing roles of responsibility at SpectraSite Communications, including Vice President of Business Development for its Building division and Senior Vice President of Sales and Marketing for the Tower, Rooftop and In-Building division.

Mr. Glosson received a Bachelor of Science from Drexel University and a Master of Business Administration from Temple University.

Tim Shine serves as Chief Information Officer at Vertical Bridge. Mr. Shine oversees the implementation of advanced technology solutions, cybersecurity operations, and the integration of artificial intelligence across all facets of Vertical Bridge’s operations, aiming to deliver more streamlined and efficient processes for clients. With over 25 years of experience in information technology, cybersecurity, and strategic technology initiatives, he brings substantial expertise to Vertical Bridge.

Prior to joining Vertical Bridge, Mr. Shine served as Vice President of IT at Improving, formerly known as Innovative Architects. Mr. Shine led Improving’s expansion to South Florida and was responsible for directing IT-focused technology projects across the region. Previously, Mr. Shine served as Vice President of IT at NationsBuilders Insurance Services, where he planned, developed, and led IT initiatives enabling the company to more effectively manage itself. Earlier in his career, Mr. Shine spent 12 years with HomeBanc Mortgage in increasing roles of responsibility, most recently as VP of Application Development.

Mr. Shine holds a Bachelor of Science in Economics from Florida Atlantic University.  

Tom Guard is the Chief Financial Officer of Vertical Bridge. He has 30 years of experience in accounting, financial reporting, and corporate finance. Mr. Guard is responsible for all financial aspects of the company including accounting, finance, tax, treasury, budgeting, forecasting, and investor relations.  

Prior to joining Vertical Bridge, Mr. Guard served as Chief Financial Officer and Chief Corporate Development Officer at Carter Funds, which focuses on acquiring, developing, and managing real estate investments in high-growth industries and markets throughout the Southern and Mid-Atlantic U.S. Previously, Mr. Guard was Chief Financial Officer of Tower Cloud, Inc. prior to its merger with Uniti Fiber LLC.  

Earlier in his career, he was Senior Vice President and Treasurer of Global Signal, Inc. While at Global Signal, Mr. Guard led the treasury, corporate development, and contracts administration departments and was actively involved in structuring and raising $3.5 billion of CMBS and bank debt and its $145 million IPO used to finance its real estate, including the $1.3 billion acquisition of 6,600 towers from Sprint. Mr. Guard started his career with Price Waterhouse.  

Mr. Guard received his Master of Business Administration from the University of Florida. He also holds a Bachelor of Science in Business Administration in Accounting from the University of Missouri.  

Blair Crawford is the Executive Vice President of Leasing & Marketing at Vertical Bridge. With over two decades of experience in the telecommunications industry, Mrs. Crawford is responsible for overseeing all leasing, sales, marketing, site administration, and asset management activities for the company.

Prior to joining Vertical Bridge, Mrs. Crawford began her career with Kineticom, Inc., a consulting and staffing firm that focuses on the telecommunications, tower, and renewable energy sectors. During her tenure there, Mrs. Crawford held multiple positions, ultimately becoming the Vice President of Business Development, where she built effective and flexible workforces for enterprises in the wireless industry.  

Mrs. Crawford is a board member of the Wireless Infrastructure Association Foundation (WIA), a 501(c)(3) non-profit dedicated to advancing the wireless industry by encouraging and promoting education, research, and training programs.  

Mrs. Crawford holds a Bachelor of Science degree from the University of San Diego.  

Bob Paige is the Executive Vice President of Mergers & Acquisitions and Corporate Development of Vertical Bridge. Mr. Paige is responsible for all portfolio acquisitions, joint ventures, and other strategic transactions.

Prior to joining Vertical Bridge, Mr. Paige was a Principal and Telecom M&A Group Head at Brown Brothers Harriman, where he led all assignments for companies in the telecommunications industry with a specific focus on the wireline and wireless sector. Previously he served as the Managing Director at Falkenberg Capital Corporation where he advised wireline and wireless companies in M&A transactions. Prior to Falkenberg, Mr. Paige served as the Chief Executive Officer of a high-tech wireless equipment company, Superconducting Core Technologies. He started his career as a telecommunication lending executive with Northern Telecom and GE Capital.

Mr. Paige is a board member for Boingo Wireless, a company that simplifies complex wireless challenges to connect people, business, and things.

Mr. Paige graduated from Franklin & Marshall College with a Bachelor of Arts degree and Executive Master of Business Administration degree from Southern Methodist University.  

Dale Carey is the Executive Vice President of Strategy & Convergence at Vertical Bridge. Mr. Carey is responsible for identifying new convergence opportunities across the digital infrastructure ecosystem and coordinating with other providers to bring new infrastructure offerings to our customers, particularly those within the Digital Bridge portfolio.

Prior to joining Vertical Bridge, Mr. Carey was Founder, Chairman, and CEO of Eco-Site, a leading developer of wireless communication, tower sites, and infrastructure. As CEO of Eco-Site, Mr. Carey led the firm from its inception to become the sixth largest privately held tower company in the U.S. Before Eco-Site, Mr. Carey was President and COO of Shared Access, a wireless tower operator in the U.K. and Ireland. He also served as President of SpectraSite Communications’ U.S. Wireless division and was also President of its Building division, where he pioneered the firm’s use of the neutral host distributed antenna system model. Earlier in his career, Mr. Carey spent 11 years at AT&T/Vanguard Cellular Systems, most recently serving as Vice President for the mid-Atlantic region.

He serves on the Board of Directors at GridSource, Inc., a utility and fiber construction company, and the Board of Trustees at York College of Pennsylvania.

Mr. Carey received a Bachelor of Arts from Temple University.  

Johnny Crawford is the Executive Vice President of Development at Vertical Bridge. Mr. Crawford is responsible for overseeing all sales and delivery of build-to-suit opportunities for the company.

Prior to joining Vertical Bridge, Mr. Crawford was Vice President of Business Development Network Services at SBA Communications Corporation where he was responsible for sales to SBA’s national customers. Additionally, he has served as Vice President of Engineering and Operations for Airgate PCS, a Sprint PCS affiliate, and as Director of Engineering and Operations for Sprint, where he launched one of the first PCS markets. Mr. Crawford was also a co-owner of Optima Towers, a South Carolina-based regional tower owner. Additionally, he was recently appointed as a Board Member for Music-Movement.Org, a 501(c) 3 nonprofit organization that develops and funds music-centric programs for children and young adults living with autism.

Mr. Crawford holds a Bachelor of Science from Greenville Technical College.  

Michael Belski is the Co-Founder and Executive Vice President of Vertical Bridge. He is responsible for creating deep relationships with clients and working with some of the country’s largest carriers to develop leasing contracts.  

Prior to co-founding Vertical Bridge, Mr. Belski was the Senior Vice President of Leasing & Marketing at Global Tower Partners (GTP), where he was responsible for leasing and marketing the company’s portfolio of assets and securing build-to-suit contracts. Earlier in his career, Mr. Belski held senior positions at Morrison Hershfield Corporation and SBA Communications Corporation.  

He is the Chairman and Co-Founder of the Florida Wireless Association and a Warriors4Wireless board member.  

Mr. Belski holds a Bachelor of Arts degree from the Indiana University of Pennsylvania.  

Allison Cannella is Senior Vice President and General Counsel at Vertical Bridge. Ms. Cannella is responsible for leading the legal and compliance functions and oversees legal matters across company operations. Ms. Cannella brings 15 years of real estate and legal experience to Vertical Bridge and has played a leading role in the negotiation, drafting, due diligence, analysis, and consummation of more than $25 billion in real estate, corporate and other strategic transactions.    

Prior to joining Vertical Bridge, Ms. Cannella was the Associate General Counsel at Kayne Anderson Real Estate, where she led a variety of complex commercial real estate and corporate transactions, including mergers, acquisitions and dispositions, joint ventures, and financings. Previously, Ms. Cannella was an associate at Holland & Knight, where she represented clients in all phases of commercial real estate and corporate transactions.

Ms. Cannella graduated summa cum laude from the University of Florida with a Bachelor of Science and a Bachelor of Arts degree. She also earned her Juris Doctor degree, magna cum laude, from the University of Florida Levin College of Law, where she was inducted into the University of Florida Hall of Fame and is a recipient of the 40 Gators Under 40 award.

David Tripp is the Senior Vice President of Human Resources at Vertical Bridge. He brings over 30 years of Human Resource leadership experience focused on leveraging innovative human strategies that influence business strategy and deliver results. Mr. Tripp thrives on developing winning teams and partnerships centered on value creation and trust. In his role, he is responsible for the organization’s talent management practices and fostering an engaging work culture, including leadership and learning, total rewards, and diversity and inclusion initiatives.  

Mr. Tripp has worked with large and midsize companies in insurance, communication, customer service, healthcare, financial services, manufacturing, education, and athletics. Before joining Vertical Bridge, he was the Head of Human Resources at Sage Dental, a leading dental service organization, and Vision Group Holdings, the world’s leading laser eye surgery company.  

Mr. Tripp received his Bachelor of Science and a Master of Science in Human Resource Development from Clemson University.