He wants your Microsoft Teams to message a colleague's Slack the way you text across phone networks. He has been building improbable things since he was twelve.
Right now Tom Hadfield is selling plumbing. Not the copper kind - the digital kind that nobody notices until it leaks. His company, Mio, sits invisibly between Microsoft Teams, Slack, Google Chat, Webex and Zoom, translating messages so a person on one platform can talk to a person on another without anyone switching apps. It is unglamorous, deeply technical, and exactly the sort of problem he likes: a wall everyone has agreed to live behind, waiting for someone stubborn enough to knock a door in it.
His pitch is a single sentence anyone can repeat at a dinner party. "It would be like Verizon customers only being able to SMS other Verizon customers." That is the world enterprise chat currently lives in, and Hadfield's bet is that the walls come down the same way they did for email and phone numbers - not with a grand standard, but with a stubborn middleman doing the dirty translation work in the background.
Mio is backed by Y Combinator and Khosla Ventures. Then, in 2021, something strange happened: Cisco and Zoom - companies that compete fiercely - both put money into the same $8.7 million Series A. Getting two rivals to fund the same plumbing is its own kind of diplomacy, and it tells you what Hadfield actually sells. Not a feature. A truce.
What makes the position believable is the resume underneath it. Most founders pitching enterprise software have shipped one or two things. Hadfield has been shipping since the mid-nineties, across categories that share almost nothing - sport, education, biotech, communications - which means he has watched several technology waves crest and break from the inside. He is not guessing about how walled gardens eventually open. He has lived through it before, and he is patient enough to wait for it to happen again on his timeline.
Before the web grew up, a twelve-year-old in Wakefield, England, started typing football statistics into a website. His co-founder was his father, Greg Hadfield. The site was Soccernet, and it arrived early enough that it became indispensable to a sport with the most obsessive fan base on earth. TIME magazine ran a profile under the headline "This Boy's Life." He was, briefly, the most famous teenage entrepreneur in Britain.
Then ESPN bought it for $40 million. Hadfield was seventeen - too young to sign most contracts, old enough to sell a company to a sports network. Most people would coast on that. He did the opposite. He and his father founded Schoolsnet.com, a database of British schools where parents could compare test scores and students could find revision notes. New Media Age named it 2000 Start-up of the Year. By nineteen he was at Davos, named a Global Leader of Tomorrow by the World Economic Forum, shaking hands with heads of state who had grandchildren his age.
The expected next move was more internet. Instead he went to Harvard and graduated in 2008 - finishing college roughly a decade after selling his first company, an order of operations almost no one runs. Then he founded AeroDesigns, a biotech firm, and ran it as CEO. Football stats to school league tables to inhalable biotech: there is no tidy narrative arc here, and that seems to be the point. Hadfield once described himself as a business geek who cares more about the entrepreneurial process than the profit. He chases the puzzle, not the category.
In 2013 he moved to Silicon Valley. In 2015 he co-founded Message.io - later just Mio - with James Cundle, and ran it through Y Combinator, the accelerator that has minted a generation of software companies. The early version was tooling for building apps on top of chat platforms; the company eventually sharpened that into the harder, more valuable problem of making the platforms themselves interoperate. And then he did the contrarian thing again: he left the Valley for Austin, Texas, telling CNBC the move let him build the company on his own terms instead of the Valley's - a choice that looked eccentric in 2016 and looked prophetic a few years later when half of tech followed him there.
Interoperability is a boring word for a radical idea: that the tools you use to talk to people should not decide who you are allowed to talk to. Email does not care which provider you use. Phone numbers do not care which carrier you chose. Enterprise chat is the glaring exception, a set of walled gardens where switching platforms means losing your conversations. Hadfield's aspiration is to make that exception disappear - to let Teams, Slack, Google Chat, Webex and Zoom users find each other and message natively, ending the vendor lock-in that keeps them apart.
It is a patient bet. The plumbing only matters if it works every time, invisibly, for years. That suits a founder who has been at this since before some of his engineers were born, and who measures his career in decades rather than quarters. Away from the keyboard he sits on the board of Heifer International, the anti-hunger and anti-poverty nonprofit - a reminder that the business geek keeps at least one project where the return is not measured in funding rounds.
There is a reason interoperability is hard, and it is not technical. The big collaboration vendors have every incentive to keep their gardens walled - a customer who cannot easily message outside Teams is a customer who buys more Teams. Mio's product makes the lock-in optional, which is precisely why a neutral third party had to build it rather than any of the platforms themselves. Hadfield's framing keeps coming back to networks that already solved this. Email did it with open protocols. Phone numbers did it with carrier agreements. Enterprise chat, he argues, is simply running a couple of decades behind, and somebody has to do the unglamorous translation work in the meantime.
For someone whose ventures jump between categories, one thread does recur: a belief in people the establishment underestimates. As a teenage founder he became a patron of the UK National Youth Agency and a youth advisor to NESTA, the National Endowment for Science, Technology and the Arts - lending his improbable resume to the argument that young people can build serious things. It is a logical position for a man who shipped a product worth tens of millions before he could legally drive.
In 2006 Goldman Sachs named him a Global Leader, a club of people the bank bets will shape the next few decades. By then he had already collected the Davos badge and the ESPN exit, and the conventional move would have been to cash the credibility in - a fund, a board seat, an advisory shingle. Instead he kept founding things, kept getting his hands dirty in product, and kept choosing problems that look boring from the outside. The pattern is not money. It is the refusal to stop building.
Co-founds Soccernet with his father Greg Hadfield, age 12, from Wakefield.
Soccernet is acquired by ESPN for $40 million. Hadfield is 17.
Co-founds Schoolsnet.com; named Start-up of the Year by New Media Age.
Named a Global Leader of Tomorrow by the World Economic Forum at Davos.
Selected as a Goldman Sachs Global Leader.
Graduates from Harvard University.
Founds biotech firm AeroDesigns, Inc.; becomes CEO.
Co-founds Mio with James Cundle; goes through Y Combinator.
Relocates the company from Silicon Valley to Austin, Texas.
Mio raises an $8.7M Series A with Cisco and Zoom as investors.
He sold a company to ESPN before he was old enough to vote.
His first business partner was his own father. The family startup, before family startups were cool.
Football stats, then school league tables, then inhalable biotech, then chat plumbing. The only theme is "build the thing nobody else will."
He got Cisco and Zoom - direct rivals - to invest in the same funding round.
He sits on the board of Heifer International, fighting hunger and poverty between product cycles.
"Effective communication across various platforms is essential for organizations that rely on diverse tools."