Capgemini's business model is professional services at enterprise scale—a model where human expertise is packaged into consulting engagements, managed services contracts, and outsourcing relationships that generate recurring and project-based revenue. Unlike software companies where revenue scales without proportionate headcount growth, Capgemini's business requires continuous talent acquisition, development, and deployment to maintain its revenue base and grow organically. The revenue architecture spans five primary service lines. Strategy and Transformation consulting—the highest-margin offering—involves senior consultants advising C-suite clients on digital strategy, operating model design, and transformation roadmaps. These engagements are typically shorter in duration but higher in day rates, and they create the trusted advisor relationships that generate downstream delivery work. Applications and Technology services—the largest revenue contributor—encompasses custom software development, application modernization, ERP implementation, and systems integration. This is the operational backbone of Capgemini's business: large, multiyear programs with hundreds of consultants working on enterprise-scale technology transformation. Cloud services have become the fastest-growing service line as enterprises accelerate migration from on-premises infrastructure to public cloud platforms. Capgemini has invested heavily in cloud partnerships with AWS, Microsoft Azure, and Google Cloud, developing certified delivery capabilities that allow it to win large cloud migration contracts. The cloud market is attractive because migration programs are capital intensive for clients but generate substantial services revenue for implementation partners, and because post-migration managed services contracts create recurring revenue streams that are more predictable than project-based work. Capgemini's cloud revenue has grown from a small fraction of total revenue to a significant contributor as the market has expanded. Engineering services—significantly expanded through the Altran acquisition—represent the most differentiated revenue stream relative to pure IT services competitors. Engineering consulting addresses the digitalization of physical products and industrial processes: designing embedded software for autonomous vehicles, developing connected device platforms for industrial equipment, creating digital twin simulations of aerospace systems. These engagements require engineering expertise—in mechanical systems, electronic hardware, and specialized software domains—that IT services generalists cannot provide. The addressable market for engineering services is growing rapidly as every manufactured product becomes a connected software platform, and Capgemini's scale in this area is matched only by a small number of specialized competitors. Business process services—outsourcing of specific operational functions including finance and accounting, procurement, human resources, and customer service—provide recurring revenue with multi-year contract terms that stabilize the revenue base against project work cyclicality. These contracts are typically lower margin than consulting but more predictable, and they create deep operational relationships with clients that generate upsell opportunities for higher-value transformation work. The delivery model combines onshore client-facing consultants—who maintain client relationships and manage program quality—with offshore delivery centers in India (with major operations in Mumbai, Pune, Chennai, and Bangalore), Poland, Morocco, and other locations where engineering talent is available at lower cost than in Western European or North American markets. This hybrid model allows Capgemini to price competitively against Indian IT services firms on cost while offering the local presence, cultural competency, and senior advisory capabilities that large European enterprises value in their technology partners.