B. Kevin Turner (born April 3, 1965) is an American businessman and investor who is the chairman of Zayo Group and the vice chairman of Albertsons/Safeway Inc.[2] During his nearly 20 years at Walmart, Turner rose through the ranks from a store cashier to become the company's global CIO, then CEO of Sam's Club, a $37 billion division of Walmart.

[3] He also managed Microsoft's partner channels and corporate support functions, including information technology, licensing, pricing, and operations.

[6] In 1987, Turner earned a Bachelor of Science in business administration with a concentration in management from East Central University in Ada, Oklahoma, where he was a member of the Pi Kappa Alpha fraternity.

[9] On Walton's advice, Turner joined the company's information systems division, where he worked his way through a succession of jobs: business analyst, strategy manager, director, and then assistant CIO.

[15] In 2002, Turner replaced Tom Grimm as the president and chief executive officer of the Walmart-owned retailer Sam's Club, which had over 46 million members and over US$37.1 billion in annual sales.

[19] In 2005, Turner was approached by Microsoft co-founder Bill Gates and CEO Steve Ballmer about overseeing the company's worldwide sales, marketing, services, and internal IT operations organization.

[15] Turner accepted the offer and moved his wife and three children to Washington state where, in September 2005, he became the chief operating officer of Microsoft (the previous COO, Rick Belluzzo, had left the company in 2002 and no replacement had been hired).

[20] From 2005 to 2016, Turner was responsible for the strategic and operational leadership of Microsoft's worldwide sales, field marketing and services organization.

[22] At Microsoft, Turner was known for his speeches at partner and sales events that amped up the rivalry with competitors like Oracle, Google and IBM.

"[3] After his departure for Citadel LLC, Turner's responsibilities were split across five different Microsoft executives: Jean-Philippe Courtois, Amy Hood, Chris Capossela, Kurt DelBene and Judson Althoff.

[30] His appointment occurred after Citadel Securities purchased the designated market-maker business of KCG Holdings and the Automated Trading Desk, a computer-based market making pioneer owned by Citigroup.

[36] In 2018 Turner was appointed president and CEO of Core Scientific, a blockchain hosting and infrastructure provider headquartered in Bellevue, Washington.

[39] In 2020, Turner was named chairman of the board of directors at Zayo Group,[40] which had been acquired by global investment firms EQT AB and Digital Colony for $14.3 billion.