The business story
Sridhar Vembu (b. 1968, Tamil Nadu) earned a B.Tech from IIT Madras and a PhD in electrical engineering from Princeton, worked at Qualcomm, then co-founded AdventNet in 1996 (renamed Zoho Corporation in 2009). He famously refused venture capital, building Zoho into a private, profitable software company with reported revenue around $1.4B, 1M+ paying organisations, and ~15,000 employees. He champions "transnational localism" (building from rural India), runs Zoho Schools of Learning (training engineers without college degrees), received the Padma Shri (2021), and stepped down as CEO to become Chief Scientist in January 2025.
The defining choice came around 2000, when a venture investor offered about $10 million at a valuation near $140 million.
Early life and background
Sridhar Vembu was born in 1968 in the Thanjavur district of Tamil Nadu, into a middle-class family; his father worked as a stenographer in the Chennai courts. He followed a familiar high-achiever's path: a B.Tech in electrical engineering from IIT Madras in 1989, then a master's and a PhD in electrical engineering at Princeton, where he worked on information theory under Sergio Verdú.
He joined Qualcomm in San Diego to work on advanced wireless systems. By most standards he had made it, but the work felt narrow and the upside belonged to someone else. In 1996 he left to start a company with his brothers and co-founder Tony Thomas.
Building Zoho
The company began as AdventNet, making network-management software for telecom and networking-equipment firms. It was unglamorous infrastructure, and that turned out to be useful. When the telecom and dot-com bust hit in 2001, AdventNet lost much of its customer base, but it had cash on hand, no investors pressing for an exit and low costs thanks to engineering in India. Rivals with heavy burn rates struggled; AdventNet could choose its next move calmly.
It moved up the stack. ManageEngine, an IT-management suite, launched in 2002, followed by cloud applications for businesses. In 2009 the company took the name Zoho Corporation. Today it offers more than fifty connected applications covering email, office tools, CRM, accounting, HR, support, analytics and project management, and it reports revenue of around $1.4 billion, more than a million paying organisations, over 150 million users and roughly 15,000 employees. Because Zoho is private, these are company-stated or third-party figures rather than audited ones.
