INTERCOM

The four founders, Eoghan McCabe, Des Traynor, Ciaran Lee, and David Barrett, had already built and sold a company together. It was called Exceptional, an error-tracking tool for developers, and they sold it to Rackspace.

They used that money to bootstrap Intercom in 2011. The founding belief was that online businesses had lost the personal touch.

The story they tell is about a Dublin coffee shop owner who grew by actually knowing his customers. They wanted to build software that let internet companies feel that personal at scale.

They moved to San Francisco, raised a $600,000 seed from angels including Twitter co-founder Biz Stone and Naval Ravikant, and shipped a chat bubble that let companies talk to the people using their product.

Companies pay Intercom to talk to their customers right inside their own app or website. That little chat bubble in the bottom corner of so many websites?

Very often that is Intercom. It bundles live chat, a help desk, a support inbox, product tours, and automated messages into one tool.

Businesses use it for customer support and for guiding new users. Pricing used to scale mostly with the number of support seats.

The new money is in Fin, which charges per resolution. You pay Intercom when its AI actually solves a customer's problem, not just when it tries.

The classic product is the Intercom Messenger, the chat widget millions of people have clicked in the corner of an app. Around it sits a full support suite.

A shared inbox for support teams, a help center, product tours, and targeted in-app messages. The headline today is Fin, the AI agent.

Fin resolves customer questions from start to finish across chat, email, WhatsApp, SMS, and more, powered by Intercom's own AI model. By 2026 it was serving more than 30,000 companies.

Intercom grew by selling to startups, in the startups' own backyard. Its early customers were other venture-backed software companies in the San Francisco ecosystem, and the chat bubble spread until it felt like every app had one.

The company also built a famous content engine. Its blog and books on product management, largely driven by Des Traynor, became required reading for the industry and pulled in customers for free.

Then came the big bet. When ChatGPT-era AI arrived in 2023, Intercom moved faster than almost any incumbent, shipping the Fin agent and reorganizing the entire company around it.

That speed is exactly what turned it into a $3.6 billion target.

Intercom had to eat its own lunch. The old business charged companies per human support agent.

Fin charges per AI resolution, which means customers need fewer human agents. In other words, Intercom's flagship AI product attacks the very support jobs its old software was sold to support.

Betting the company on Fin meant betting against its own legacy revenue. On top of that, the competition is brutal.

Zendesk, Salesforce, and a swarm of AI startups are all chasing AI customer service. Renaming the company to Fin in 2026 made the message clear.

There is no going back to being just a chat bubble.

Intercom bootstrapped first, then raised a $600,000 seed from notable angels, including Twitter co-founder Biz Stone and Naval Ravikant. Bigger checks followed from Social Capital, Bessemer Venture Partners, Index Ventures, and ICONIQ.

In 2018, Mary Meeker's Kleiner Perkins led a $125 million round that valued Intercom at $1.275 billion. The cap table reads like a Silicon Valley who's-who betting that a Dublin startup could win in San Francisco.

They were right.