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Zayo Appoints General Counsel and CTO

Wendy Cassity joins Zayo as general counsel and Dave Jones assumes CTO role

BOULDER, Colo. – February 22, 2016 – Zayo Group Holdings, Inc. (NYSE: ZAYO), the global leader in Communications Infrastructure, has named Wendy Cassity as general counsel and Dave Jones as chief technology officer (CTO). Cassity succeeds Scott Beer, who left the company in late 2015.

As general counsel, Cassity is responsible for Zayo’s legal and compliance functions including mergers and acquisitions, capital markets and financing transactions, regulatory compliance, corporate governance and crisis and risk management. “I joined Zayo because its mission is to accelerate the capabilities of the most innovative companies in the world by providing them with vast quantities of low cost bandwidth. Zayo is making a difference, and I wanted to be part of the team,” said Cassity.

Before joining Zayo, Cassity was vice president and general counsel of Thompson Creek Metals Company, a publicly-traded mining company, and in private practice at McDermott Will & Emery LLP and Cravath, Swaine & Moore LLP in New York, primarily focused on M&A and securities.

As chief technology officer, Jones is responsible for the overall technical direction of the company and for working with Zayo’s various product groups to execute on that direction. He is also responsible for cyber security and the enterprise IT infrastructure, ensuring compliance with regulatory requirements and industry standards. “I’m very excited about working with our internal teams and external partners to ensure that Zayo continues to provide innovative solutions that meet the rapidly evolving requirements of our customers,” he said.

Jones has more than 25 years of experience in the wireless and broadband industries. He previously served as executive president of Zayo’s Dark Fiber Solutions business segment and as senior vice president of Zayo’s Mobile Infrastructure product group. Prior to joining Zayo, Jones was senior vice president of Network Services at FiberTower Corporation. He has also held senior management and technical positions with Formus Communications Europe, Sprint PCS, US WEST and the National Telecommunications and Information Administration (NTIA).

“Both of these leaders bring the right talent and experience to Zayo as we move into the next chapter of global growth,” said Dan Caruso, chairman and CEO of Zayo. “Wendy is a highly skilled and respected attorney who brings with her years of business and legal experience on issues critical to our future growth and success. Her collaborative approach and great demeanor will be a strong addition to an already accomplished and remarkable team. Dave is already among Zayo’s strongest leaders and will have a broader platform to apply his vision for how we leverage technology in global markets, including a continued focus on the highest standards of cyber security.”

For more information about Zayo, please visit zayo.com.

About Zayo Group

Zayo Group Holdings, Inc. (NYSE: ZAYO) provides communications infrastructure services, including fiber and bandwidth connectivity, colocation and cloud services to the world’s leading businesses. Customers include wireless and wireline carriers, media and content companies and finance, healthcare and other large enterprises. Zayo’s 110,000-mile network in North America and Europe includes extensive metro connectivity to thousands of buildings and data centers. In addition to high-capacity dark fiber, wavelength, Ethernet and other connectivity solutions, Zayo offers colocation and cloud services in its carrier-neutral data centers. Zayo provides clients with flexible, customized solutions and self-service through Tranzact, an innovative online platform for managing and purchasing bandwidth and services. For more information, visit zayo.com.