Accenture leads the ranking of largest IT service firms by market cap at $113.38 B. ADP follows in second place with $111.55 B. TCS takes third at $87.06 B, while Infosys holds fourth with $48.35 B. IQVIA ranks fifth…



Tata Consultancy Services, widely known as TCS, is a prominent Indian multinational information technology services and consulting company.