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Sai Tunuguntla

Partner, Singapore
Brings deep expertise in large-scale operations transformation in the telecommunications and technology sectors

About Sai

Sai is a seasoned practitioner in the technology, media, and telecommunications (TMT) industry. He has more than 20 years of experience in the industry as an advisor and as an executive. During his 15-year consulting career, Sai has helped companies across multiple geographies address a diverse set of strategic, operational, and digital transformation challenges. At McKinsey, he is the global coleader of the technology strategy and operations domains within TMT. Across Asia–Pacific, he has driven large-scale transformations in both mature and emerging market contexts.

Sai works with primarily with telcos, OEMs, and in heavy infrastructure and field-intensive sectors—helping them transform their operating model—using strategy and customer-backed approaches and leveraging agile, analytics, and digital enablers.

Recent examples of Sai’s client work include the following:

  • leading operational efficiency improvement and cost transformation in the technology area for a leading telco
  • advising operators in multiple Asia–Pacific markets on infrastructure strategy, accelerating builds, and on infrastructure sharing and wholesaling
  • driving a comprehensive strategy-backed transformation program for a Southeast Asian mobile operator and driving operational efficiencies across technology, customer operations, and select corporate functions
  • advising an integrated operator on datacenter modernization and business model change for data storage
  • advising multiple operators on B2B and B2C growth and partnership strategy

In addition to his client service, Sai takes an active role in McKinsey’s knowledge and analytics asset development. He is the leader of cutting-edge solutions and propositions, including our digital transformation capability for telcos and the Network 360 analytics suite that has garnered recognition and expedited impact for companies in the telecom industry. Sai actively shares perspectives on telco strategy, infrastructure, and technology topics in the local business media and is also a regular speaker at industry forums and corporate board events in Southeast Asia.

Prior to joining McKinsey, Sai was a consultant with a global management consulting firm serving communications, media, and high-tech companies in Southeast Asia and in North America. For nine years, he oversaw product and technology development at a multinational communications provider headquartered in USA.

Published work

Unlocking enterprise efficiencies through zero-based design,” McKinsey & Company, June 2020

The case for committing to greener telecom networks,” McKinsey & Company, February 2020

Past experience

AT Kearney
Principal, Singapore and Dallas

Director, Product and Technology Development, Austin and Middletown


University of Texas at Austin

Virginia Tech at Blacksburg
MS, operations research