Pieter
de Villiers

In November 2000, while the dot-com crash was still smoldering, Pieter de Villiers and three co-founders pushed a piece of software live. It was not elegant. It was four lines of code that let any website send an SMS to any mobile phone on earth. No one had done it before. Within three months, 76,000 websites had embedded it.

That was Clickatell's beginning - not a pitch deck, not a TED talk, not a press release. Just a quiet invention that spread because it solved an obvious problem that everyone had missed: email was too slow for time-sensitive information, and phones were already in everyone's pocket. The travel deals website de Villiers originally tried to build taught him this the hard way. SMS was the real play.

What followed was two decades of trench warfare - the kind of company building that doesn't make highlight reels. De Villiers started in optometry, a career path he describes as leaving him "perpetually unhappy," before pivoting into internet strategy at Micrologix in 1999. The tech pivot wasn't a dramatic calling. It was a recognition that retail - whether selling glasses or anything else - had a ceiling, and technology could take outcomes to a different scale entirely.

He co-founded Clickatell in Cape Town in February 2000 alongside his twin brother Casper de Villiers, best friend Danie du Toit, and Patrick Lawson. The company survived the dot-com crash by launching in its immediate aftermath - a timing that looked catastrophic but actually cleared the field of weaker competition. The original $67,000 angel investment grew the company to $11 million in revenue over six years on nothing but discipline and product-market fit.

De Villiers relocated to Silicon Valley around 2005-2006 to anchor the U.S. operation, spending nearly a decade in San Francisco. Early enterprise clients like Oracle and Visa validated the market. By 2011, DAG Ventures came in for a $12 million Series B. The company became profitable, global, and methodical about capital - never chasing inflated valuations that would create pressure the business couldn't sustain.

He returned to South Africa in 2015, settling eventually in Stellenbosch. The proximity to Cape Town's growing tech ecosystem, and to Africa's largest potential market for mobile financial services, was not accidental.

Clickatell's evolution from SMS gateway to chat commerce platform tracks the arc of how a billion people moved from SMS to WhatsApp, from static apps to conversational interfaces. The company launched what it calls the world's first chat banking solution - real financial services conducted entirely inside WhatsApp - with ABSA bank in South Africa. It then built the first in-channel tokenized payments within WhatsApp. These aren't features. They are infrastructure for commerce in markets where branch banking is scarce and smartphones are replacing everything.

By 2022, the Series C closed at $91 million. Total funding crossed $118 million. Annual revenue sits around $110 million. The platform now processes roughly 9 billion messages monthly, serving 5 billion users across 220+ countries through 10,000+ enterprise clients in banking, insurance, telecom, retail, and travel. The ambition is plain: get to $1 billion in annual revenue and stay there.

De Villiers talks about chat commerce the way early internet believers talked about e-commerce in 1999 - except this time the infrastructure exists. Messaging app open rates run around 75%. Click-through rates near 40%. Compare that to email. The math is not subtle. His vision is a world where customers never sit on hold again - where every business interaction, from checking a balance to disputing a charge to buying a ticket, resolves inside the chat thread the customer is already in.

The AI piece is no longer speculative. Clickatell's stack now includes agentic commerce capabilities, AI chat flows, and integrations with tools like Anthropic Claude, ChatGPT, and Copilot. The platform they are building - and the category they are defining - sits exactly where conversational AI and transactional commerce intersect.