In 1999, a small group of technology industry veterans who were frustrated by traditional analyst firms founded ESG.

Using practical experience and quality market research to deliver pragmatic guidance remains our mission. 


 Accelerate your business’ engineering, marketing, and sales success by tapping into ESG’s comprehensive library of market research and network of expert analysts.


Gain a deeper understanding of technology trends, capitalize more effectively on market dynamics, and position your organization to capture emerging opportunities.


Increase awareness, educate customers, gain share, and become a market leader with compelling marketing content developed by ESG experts.

ESG Leadership Team

Steve Duplessie

Founder and Senior Analyst

Founder and Senior Analyst Steve Duplessie is an internationally recognized expert in IT infrastructure technologies and markets. An acclaimed speaker and author, Steve’s insights have been featured in Time Magazine, The Wall Street Journal, BusinessWeek, The Financial Times, USA Today, China Daily, The Moscow Times, and many other print and online publications. Steve is a valued strategic advisor to many of the largest technology providers in the world, including IBM, HPE, Dell EMC, NetApp, HDS, and other global IT organizations. A much sought-after speaker for conferences and industry events worldwide, Steve is known for his pull-no-punches, straight-shooting style. Steve’s presentations are renowned for being educational, opinionated, thought-provoking, and entertaining. They often draw standing-room-only capacity crowds.

Tony Prigmore

Managing Partner and Senior Analyst

Managing Partner and Senior Analyst Tony Prigmore joined ESG shortly after its founding in 2000. He is responsible for operations and oversees the firm’s analyst and research organizations, the validation team, and the client relations and programs team. During Tony’s tenure, ESG has grown to become a globally recognized analyst and strategy firm anchored in world-class research.

Mike Beaudet

Executive Vice President, Client Relations

Executive Vice President, Client Relations Mike Beaudet is responsible for client development and business development activities at ESG. Mike brings more than 35 years of sales and business development experience to his role, including time with IT market leaders such as EMC Corporation, Clearpoint Research Corporation, ITC, CLARiiON Advanced Storage Systems/Data General, StorageNetworks, and FilesX.

Brian Garrett

Executive Vice President, Validation Services

Executive Vice President, Validation Services Brian Garrett is committed to providing independent validation and analysis of the technical and economic benefits of emerging technologies throughout the IT industry. The values he strives to instill in his team are a customer-centric approach to ESG’s relationships and empathy with the end-users who rely on ESG’s guidance in purchase decisions.

Walter Mason

Executive Vice President & Chief Financial Officer

Executive Vice President & Chief Financial Officer Walter Mason oversees all aspects of ESG’s internal and external financial business. Working closely with his team, Walter oversees accounting, budgeting, financial planning, financial community interactions, financial analyses, and financial performance monitoring. His professionalism and extensive experience, combined with his attention to detail, make him a tremendous asset to ESG.

John McKnight

Executive Vice President, Research & Strategy

Executive Vice President, Research & Strategy John McKnight leads ESG’s analyst team and is responsible for all analyst services and market research operations. Under his leadership, ESG has become an established, respected, and trusted provider of research and advisory services, strategic consulting, and custom content solutions for the global IT community.

Doug Cahill

Vice President, Analyst Services and Senior Analyst

Vice President, Analyst Services and Senior Analyst Doug Cahill draws upon more than 25 years of industry experience across a broad range of cloud, host, and network-based products and markets to lead ESG's analyst team.

Noelle Marzullo

Senior Director of Business Operations

Senior Director of Business Operations, Noelle Marzullo works within all areas of ESG to drive continuous improvement and efficiency company-wide, focusing primarily on three areas: Business Operations, Finance, and Sales Operations.

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