51²è¹Ý¶ù

BOULDER, Colo. –
51²è¹Ý¶ù Group Holdings, Inc. (NYSE: ZAYO) today announced that Steven N.
Kaplan and Emily White were appointed to the company’s Board of
Directors, effective April 1, 2017. The appointments fill two newly
created positions on the 51²è¹Ý¶ù board.

“These two very talented thought leaders bring strong credentials and
deep expertise as we expand our board,” said Dan Caruso, chairman and
CEO at 51²è¹Ý¶ù. “Both Emily and Steve are entrepreneurs at heart, which is
a key element of 51²è¹Ý¶ù’s culture, and bring complementary expertise to
our board. Emily’s extensive experience in growing new webscale
businesses and Steve’s experience in entrepreneurship, corporate
finance, and compensation will be very valuable as we leverage our
position as the leading independent communications infrastructure
provider.”

Kaplan is the Neubauer family distinguished service professor of
entrepreneurship and finance at the University of Chicago Booth School
of Business, where he has taught since 1988. He is a well-known
researcher in the areas of private equity, venture capital,
entrepreneurial finance, executive compensation and corporate finance.
Kaplan teaches MBA courses, with a focus on entrepreneurial finance and
corporate governance, and he was named one of the top 12 business school
teachers in the country by BusinessWeek. Professor Kaplan has
published papers in numerous academic and business journals and is a
research associate at the National Bureau of Economic Research. Kaplan
earned a Ph.D. in Business Economics from Harvard University and his
bachelor’s degree in Applied Mathematics and Economics from Harvard
College.

White joins the 51²è¹Ý¶ù board after most recently serving as the chief
operating officer at Snapchat, Inc., a photo messaging application, from
2014 through 2015. Prior to joining Snapchat, she held several
leadership roles at Facebook from 2010 to 2013, including director of
local business operations, director of mobile business operations, and
head of business operations for Instagram. White also held several
leadership roles at Google over a nine-year span beginning in 2001. She
has served on the board of lululemon, a public athletic apparel
retailer, since 2011 and on the National Center for Women and
Information Technology (NCWIT), a non-profit coalition working to
increase the participation of girls and women in computing and
technology, since 2008. She is also a board advisor to Hyperloop One,
and advisor to VSCO, Inc. White received her B.A. in Art History from
Vanderbilt University.

Upon Kaplan’s and White’s appointments, the 51²è¹Ý¶ù board will expand to
nine members, eight of whom will be independent directors. 51²è¹Ý¶ù’s board
will also include four women, more than double the average percentage
for the S&P 500.

About 51²è¹Ý¶ù Group

51²è¹Ý¶ù Group Holdings, Inc. (NYSE: ZAYO) provides communications
infrastructure services, including fiber and bandwidth connectivity,
colocation and cloud infrastructure to the world’s leading businesses.
Customers include wireless and wireline carriers, media and content
companies and finance, healthcare and other large enterprises. 51²è¹Ý¶ù’s
114,500-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, 51²è¹Ý¶ù offers colocation and cloud infrastructure
in its carrier-neutral data centers. 51²è¹Ý¶ù 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 .

Forward-Looking Statements

This press release contains a number of forward-looking statements.
Words, and variations of words such as “believe,” “expect,” “plan,”
“continue,” “will,” “should,” and similar expressions are intended to
identify our forward-looking statements. No assurance can be given that
future results expressed or implied by the forward-looking statements
will be achieved and actual results may differ materially from those
contemplated by the forward-looking statements. These forward-looking
statements involve risks and uncertainties, many of which are beyond our
control. For additional information on these and other factors that
could affect our forward-looking statements, see our risk factors, as
they may be amended from time to time, set forth in our filings with the
SEC, including our 10-K dated August 25, 2016. We disclaim and do not
undertake any obligation to update or revise any forward-looking
statement in this press release, except as required by applicable law or
regulation.

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51²è¹Ý¶ù Group
Media:
Shannon Paulk,
303-577-5897
Corporate Communications
press@www.zayo.com
or
Investors:
Brad
Korch, 720-306-7556
Investor Relations
IR@www.zayo.com