Leaders: Accenture, Cognizant, HCL Technologies, IBM, Infosys, NTT

Data, TCS, and Wipro

Major contenders: Atos, Capgemini, Deloitte, Deqode, DXC

Technology, EY, Fuj itsu, GFT, K PMG, LTI, Mphasis, PwC, Synechron,

Tech Mahindra, and Virtusa

Aspirants: 3 i-Infotech, Birlasoft, GAVS Technology, Innominds, NIIT

Technologies, U ST Global, and Z ensar

Star performers: Atos, Cognizant, DXC Technology, GFT, NTT DATA,

TCS, Tech Mahindra, and Wipro

Figure 7 .2: Blockchain service providers

ISO standards

ISO/ TC 3 07 defines a series of blockchain and DLT standards: terminology

and concepts, privacy and personally identifiable information protection

overview, security risks and vulnerabilities, an overview of identity, reference

architecture, taxonomy and ontology, and legally binding smart contracts, In

blockchain and DLT systems overview of and interactions between smart

contracts.

Unified terminologies