Zoho Corporation grew from AdventNet into a global bootstrapped SaaS company without external venture capital.
Discover how Sridhar Vembu and Tony Thomas built Zoho from AdventNet into a global SaaS powerhouse without venture capital, while maintaining profitable, self-funded growth.
Written by TFN Research Desk | covering startups, technology, venture capital, and business strategy
Quick Facts
| Founders | Sridhar Vembu, Tony Thomas |
| Education | Sridhar Vembu – B.Tech, IIT Madras; MS/PhD Electrical Engineering, Princeton University; Tony Thomas – IIT Madras |
| Prior Ventures | Sridhar Vembu – Wireless Engineer, Qualcomm |
| Role | Founder and Chief Scientist, Zoho Corporation (Sridhar Vembu); CEO, Zoho US (Tony Thomas) |
| Founded | 1996 |
| Sector | SaaS / Enterprise Software |
Introduction
Sridhar Vembu grew up in a village outside Thanjavur, studied in a Tamil-medium government school through the 10th grade, and eventually made it to IIT Madras and then Princeton for a PhD in Electrical Engineering. (StartupTalky) After a brief, unsatisfying stint as a professor in Australia and a job at Qualcomm, Vembu teamed up with his IIT Madras friend Tony Thomas in 1996 to found AdventNet, a company that would eventually become Zoho. (StartupTalky) Three decades later, Zoho has grown into one of the very few large-scale global software companies built without ever raising outside venture capital. (Krave)
The Zoho Story
Before founding AdventNet, Thomas had already drafted early networking software and needed help selling it, which is how he brought in Vembu, initially as Chief Evangelist. (StartupTalky) The two, along with Vembu’s brothers Kumar and Sekar, built the company nights and weekends while holding day jobs, eventually launching WebNMS, a network management tool that found early customers among telecom equipment makers like Cisco. (Forbes India)
AdventNet was quietly profitable almost from the start, which gave the founders something most startups never get: complete independence from outside investors and their timelines. (Krave) By the mid-2000s, as the broader software industry shifted toward cloud-delivered, subscription-based tools, the founders made a deliberate pivot, launching Zoho CRM and Zoho Writer in 2005 and officially rebranding the company to Zoho Corporation in 2009. (Inspirepreneur)
That pivot was paired with an unconventional hiring philosophy: rather than compete for elite-college graduates against larger tech companies, Vembu built the Zoho Schools of Learning to train talented young people straight out of high school, often from low-income, rural backgrounds. (Forbes India) That rural-first philosophy also shaped where Zoho built its offices, deliberately locating many of them in small towns rather than major metros. In 2026, Vembu transitioned from CEO to Chief Scientist, handing day-to-day leadership to newly appointed Group CEO Shailesh Kumar Davey, while co-founder Tony Thomas continues to lead Zoho’s US operations. (Entrackr)
Business Model
Zoho earns revenue almost entirely through recurring SaaS subscriptions across a wide product portfolio:
| Revenue Stream | How It Works |
|---|---|
| Zoho One and business apps | Per-user, tiered subscriptions across 55+ applications including CRM, Mail, and Books |
| ManageEngine | Enterprise IT management and cybersecurity software |
| Zoho Pay and Arattai | Newer consumer fintech and messaging products, monetised through India’s “Swadeshi” self-reliance push |
| Government and enterprise contracts | Email hosting and IT services for institutions including Indian government ministries |
(Sourced from ValueForStartups)
Funding History
Zoho has never raised outside venture capital or private equity funding. Aside from early informal investment from Vembu’s own family members, the company has been entirely self-funded and profitable since inception. (Krave) As of the most recent disclosures, Tony Thomas holds an 8% stake and Sridhar Vembu holds 5%, while Vembu’s sister Radha Vembu and brother Sekar Vembu together own the majority, at 47.8% and 35.2% respectively. (Wikipedia) Founder Vembu has stated the company will never pursue a public listing. (Krave)
Revenue and Growth
| Metric | FY24 | FY25 |
|---|---|---|
| Revenue | ₹10,453 crore (approx.) | ₹13,543 crore (up 21%) |
| Net Profit | Higher base | ₹3,191 crore (down slightly) |
(Sourced from Wikipedia and StartupPedia)
Notably, Zoho became the first bootstrapped Indian startup to cross ₹12,000 crore in revenue, even as profit dipped slightly on a 30.5% jump in expenses tied to heavy investment in AI and new consumer products like the Ulaa browser and Arattai messaging app. (Entrackr) Despite that investment phase, the company maintained an unusually disciplined 31.27% EBITDA margin, spending just ₹0.75 to earn every rupee of revenue. (ValueForStartups) Arattai, in particular, saw a dramatic surge in September 2025, growing from roughly 3,000 to 350,000 daily sign-ups within three days, amid a broader “Make in India” push for homegrown tech alternatives. (HandWiki)
Zoho vs Competitors
Zoho competes with Microsoft (Office 365 and Copilot), Google Workspace (Gemini), and Salesforce (Agentforce) across productivity, collaboration, and CRM software. (TamilTech) Unlike its heavily-capitalised rivals, Zoho competes without external funding, relying on decades of profitable, self-financed growth and a deliberately conservative approach to marketing spend.
Key Takeaways
- Sridhar Vembu and Tony Thomas founded Zoho (originally AdventNet) in 1996, building the company profitably without ever raising outside capital.
- The company pivoted from network management software to cloud-based SaaS products in the mid-2000s, rebranding to Zoho Corporation in 2009.
- Zoho became the first bootstrapped Indian startup to cross ₹12,000 crore in revenue, reporting ₹13,543 crore in FY25.
- Founder Sridhar Vembu transitioned from CEO to Chief Scientist in 2026, with Shailesh Kumar Davey taking over as Group CEO.
- The company competes with Microsoft, Google Workspace, and Salesforce across productivity and CRM software, while remaining privately held with no plans to go public.
FAQs
Who founded Zoho Corporation?
Sridhar Vembu and Tony Thomas founded the company as AdventNet in 1996.
Did Zoho ever raise venture capital?
No, the company has been entirely self-funded and profitable since inception, aside from early informal family investment.
Is Zoho a public company?
No, and founder Sridhar Vembu has said the company has no plans to go public.
Who are Zoho’s competitors?
Microsoft, Google Workspace, and Salesforce across productivity, collaboration, and CRM software.
© The Founder Nation | Written by TFN Research Desk
