HACKETT GROUP, INC.

BUSI NESS GENERAL In this Annual Report on Form 10-K, unless the context otherwise requires, The Hackett Group, Hackett, the Company, we, us, and our refer to The Hackett Group, Inc. and its subsidiaries and predecessors. We were originally incorporated on April 23, 1997. Our fiscal year ended December 26, 2025. OVERVIEW The Hackett Group, Inc. (NASDAQ: HCKT) is a global, IP platform-based generative artificial intelligence ( Gen AI ) strategic advisory, business transformation, and enterprise application implementation firm. We combine proprietary benchmarking and best-practice process intelligence intellectual property ("IP") with Gen AI enabled delivery platforms to help clients identify, prioritize, design, and implement high-impact improvements across enterprise functions, including supply chain and operations, finance, human resources, information technology, procurement and corporate services, as well as selected enterprise application implementation services, including Oracle, SAP, OneStream, and eProcurement applications. WHAT MAKES US DIFFERENT? Over the past two years, we have systematically developed a suite of IP Gen AI platforms delivery platforms, which are distinctly enabled by our Hackett Domain Specific Language Model, which we refer to as our Solution Language Model ("SLM"). The Hackett SLM does not produce generic ideas. It applies domain expertise, our process performance benchmarks and best practices intelligence IP, and a structured ideation and solution-design approach to rapidly turn AI opportunities into deployable, implementation-ready solutions.