Bret Greenstein

Bret is Senior Vice President and Global Head of Data at Cognizant, leading Cognizant’s Global Data Practice. He is focused on helping chief data officers transform their businesses through data modernization. The Data Practice provides essential capabilities to help companies architect for and adopt cloud, embrace external data, increase accessibility of data and ensure data governance at scale. Bret also helps drive data transformation across Cognizant’s business units and participates in industry advisory boards to shape data policy, accelerate education and share best practices.

Prior to Cognizant, Bret led IBM Watson’s Internet of Things offerings, establishing new IoT products and services for Industrial IoT. He built his career in technology and business leadership across a range of roles throughout IBM in software, services, consulting, strategy and marketing, and as IBM’s CIO for Asia-Pacific. He has worked globally in these roles, including living in China for five years working with clients and transforming IBM’s IT environment.

Bret holds patents in the area of collaboration systems. He earned his bachelor’s degree in electrical engineering and master’s degree in manufacturing systems engineering from Rensselaer Polytechnic Institute. He can be reached at


The Search for COVID Answers Begins with the Right Data (Part 6)

When the COVID-19 pandemic struck, businesses had more questions than answers: Which policies would stem the spread? What’s the best way to distribute vaccines? How can we safely reopen? While many questions are still being debated, it’s clear what distinguishes leaders from laggards: preparedness with data, artificial intelligence (AI), the cloud and agile practices. The […]

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Collaboration Is Key to Unlocking the Power of AI (Part 3)

As the curtain opens on 2021, there’s plenty of uncertainty mixed in with the overall hope for a better year. Amid the unknown, however, one thing is sure: Artificial intelligence will play a major role in whatever the next 12 months may bring. Second, even as businesses and governments jostle for AI domination, those who […]

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It’s Not About AI – It’s About the Data

For most of us, 2020 has ushered in unwelcome chaos and uncertainty. Who would have guessed in early March that within days, personal decisions that were once mundane – like where, when and how to get groceries – would spur paralyzing anxiety. What was missing – and still is – is information and, in particular, […]

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A Look Ahead: AI Bright and Dark

Few technologies have sparked the human imagination like artificial intelligence has. Who among us couldn’t, on demand, conjure up a future scenario made possible through AI? The fact is, the technology has developed to the point that we can, with a fair degree of certainty, predict actual AI-driven events that will happen in the next […]

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What Do Clean Water and Clean Project Plans Have in Common? AI

Let’s start with water. Pumps and complex piping systems keep our houses, factories, schools and hospitals functioning. But if something goes wrong, it’s impossible to always have the right technical skills available at every pump installation. This is where AI can transform the process. We teamed up with Grundfos, one of the world’s largest pump […]

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