Archive · 13 Nov 2025
‘The S.I.S. Story’ Book Chronicles Entrepreneur Ravindra Kishore Sinha’s Journey
Imagine a journalist who wanted to help retired soldiers find jobs.
He started a small security company in 1973 called S.I.S. with just a little bit of money.
This book tells the amazing story of how that small company grew over 50 years into a giant global business.
Today, S.I.S. employs more people than live in some cities and has clients all over the world.
The book explains how the founder, who didn't study business in college, managed to grow the company so big.
It also talks about how they kept their caring work culture even as they got bigger and bought companies in other countries.
It's an inspiring story about following your dreams with passion and purpose.
HarperCollins Publishers India has released a new book titled ‘The S.I.S. Story’ by Prince Mathews Thomas.
The book chronicles the journey of Ravindra Kishore Sinha, who founded S.I.S. (Security and Intelligence Services) in 1973 with the aim of employing ex-servicemen.
S.I.S. has grown from a small firm into a global services conglomerate, now employing over 3 lakh people and serving more than 22,000 clients.
The book explores Sinha's entrepreneurial path, the company's growth through economic changes, its unique work culture, and its acquisitions.
Author Prince Mathews Thomas highlights that the business, which generates nearly Rs 15,000 crore annually, began as a social initiative.
- Who
- Prince Mathews Thomas (author) and Ravindra Kishore Sinha (founder of S.I.S.)
- What
- Publication of a book detailing the entrepreneurial journey of Ravindra Kishore Sinha and the growth of his company, S.I.S.
- When
- November 13, 2025
- Where
- India
- Why
- To capture the story of an accidental entrepreneur who built a global services conglomerate, highlighting themes of social good, industry shaping, work culture, and generational transition.
- Book Title
- The S.I.S. Story: How an Accidental Entrepreneur from Bihar Created a Global Services Conglomerate
- Author
- Prince Mathews Thomas
- Founder of S.I.S.
- Ravindra Kishore Sinha
- S.I.S. Founding Year
- 1973
- S.I.S. Current Employees
- Over 3 lakh
- S.I.S. Annual Revenue
- Nearly Rs 15,000 crore
- Publication Date
- November 13, 2025