Latest edition: 9 August 2026London — published continuously since 2026Free forever
The Founder Gazette
Startup news, held to newspaper standards
Founder stories

Mailchimp sold for $12bn without raising a round

Ben Chestnut and Dan Kurzius built an email tool as a side project inside their web design agency. Twenty years later Intuit bought it for about $12 billion.

By The Gazette desk9 August 202630
Ben Chestnut and Dan Kurzius
Ben Chestnut and Dan Kurzius

Mailchimp began as an internal tool, not a company. Ben Chestnut and Dan Kurzius were running a small web design agency in Georgia in the late 1990s, and clients kept asking the same question: can you help us send newsletters?

Email marketing at the time was built for large corporations. The two founders wrote a simple tool for themselves. Upload contacts, design an email, press send.

Then the clients started caring more about the tool than the websites.

The decision that followed was not clean. The agency paid the bills and the software barely made money, so they ran both at once for years — client work by day, code in the evenings. Progress was slow.

What they did not do is the part founders now study. There was no venture round, no funding announcement, no launch party. On the editor's account, investors were interested; Chestnut was not convinced their money would make the company better.

So customers funded the growth instead. Every feature had to pay for itself and every hire had to matter, because there was no balance sheet cushion to hide behind.

The customer choice was equally contrarian. While most software companies chased enterprise contracts and sales teams, Mailchimp built for photographers, coffee shops, independent retailers, musicians, charities and local gyms.

Chestnut has described Mailchimp as a company built for people like his parents: small business owners trying to make a living. That framing decided the interface, the tone and the smiling chimp mascot, Freddie.

The features were not individually novel — free plans, templates, simple automation, straightforward analytics. Together they meant a small business owner could start without training. Most of that list is now standard across the category.

For most of its life the company was largely absent from startup media, which was busy covering funding rounds. Mailchimp had revenue instead, and no investor clock counting down to an exit.

In 2021 Intuit announced it was buying the company for approximately $12 billion. It was widely treated as a sudden arrival. The company was twenty years old.

The lesson for a founder is narrower than the usual bootstrapping sermon. Bootstrapping did not make Mailchimp successful on its own; it removed the option of papering over a weak product with marketing spend, and it removed the deadline that forces a sale before a company is ready.

The trade is time. Chestnut spent two decades on a product most of the industry ignored, serving customers most of the industry did not want. If you are choosing that route, price the twenty years honestly before you start.

More: Mailchimp