Information Services Group Inc.

Unless the context otherwise requires, Information Services Group, Inc., the registrant, is referred to in this Annual Report on Form 10-K for the fiscal year ended December 31, 2025 (the Form 10-K ) as the Company, ISG , we, us and our. Our Company Information Services Group, Inc. (Nasdaq: III) is a global AI-centered technology research and advisory firm. A trusted partner to more than 900 clients, including 75 of the world’s top 100 enterprises, ISG is a long-time leader in technology and business services that is now at the forefront of leveraging AI to help organizations achieve operational excellence and faster growth. The firm, founded in 2006, is known for its proprietary market data and research, in-depth knowledge and governance of provider ecosystems, and the expertise of its approximately 1,500 professionals worldwide working together to help clients maximize the value of their technology investments. For more information, visit www.isg-one.com. The content on our website is available for informational purposes only. It should not be relied upon for investment purposes, nor is it incorporated by reference into this Annual Report on Form 10 K or any other filings. Our Company was founded with the strategic vision to become a leading, high-growth provider of information-based advisory services. We continue to believe that our vision will be realized through the acquisition, integration and successful operation of market-leading brands within the data, analytics and advisory industry.