Tech

Buzzy British startup Improbable just got a huge $500 million cash injection

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Rob Whitehead and Herman Narula of Improbable
Rob Whitehead (left) and Herman Narula (right) of Improbable.  Improbable

LONDON — Improbable, a buzzy British startup that builds tech underpinning virtual reality worlds, has landed a $500 million (£389 million) cash injection.

The investment was led by Japanese firm Softbank and it's a huge round of funding for a British startup. The cash is going towards tech development and hiring in its London HQ and San Francisco office, which it opened earlier this year.

What does Improbable actually do? Basically, it builds tech that does the heavy lifting required for huge simulations — whether that's online gaming or scientific research. This frees up the people using the virtual reality software to get on with the business of modelling whatever it is they want to model.

"Today in computer science, people have mastered apps to build things for a single computer," CEO Herman Narula previously told Business Insider. "And all the power of a single computer, people can use it to do really good things. But there’s this whole other wonderful set of problems that we want to solve — like recreating whole cities, or creating beautiful virtual worlds for us to explore, or being able to recreate economies, or being able to model all the processes in company — things that if we could do, we could do really great things."

Founded in 2012, Improbable's initial focus was on gaming — but has since broadened its view to everything from science to defence. In late 2015, it unveiled SpatialOS, an operating system for simulations, and launched a beta version in February 2017.

Narula says in a statement on Friday announcing the investment: "We believe that the next major phase in computing will be the emergence of large-scale virtual worlds which enrich human experience and change how we understand the real world. At Improbable we have spent the last few years building the foundational infrastructure for this vision."

There's no word yet on exactly what this week's $502 million (£390 million) funding round values Improbable's overall worth at. TechCrunch only reports that the company is worth more than $1 billion (£780 million) and that Softbank's investment is a minority stake in the company — meaning it owns less than 50% of the company.

The investment is an order of magnitude larger than any previous funding Improbable has taken. Its last publicised round was in March 2015, when it brought in $20 million (£16 million), led by Silicon Valley venture capital firm Andreessen Horowitz (also known as a16z). a16z also contributed to this more recent round of funding, Improbable says, along with Horizons Ventures, another previous investor.

By any standard, it's a huge amount of cash for a British firm to raise. According to Bloomberg, it is the fifth-largest VC investment in the UK in the last 10 years.

Tech startups with valuations of $1 billion are more are sometimes referred to as "unicorns" due to their rarity — and Improbable has now been propelled into their ranks, alongside the likes of TransferWise and Funding Circle in the UK.

In a statement, Softbank managing director Deep Nishar was (predictably) effusive. He said: "Improbable is building breakthrough technologies that are becoming vital and valuable platforms for the global gaming industry.

"Beyond gaming, this new form of simulation on a massive scale has the potential to help us make better decisions about the world we live in. Improbable’s technology will help us explore disease, improve cities, understand economies and solve complex problems on a previously unimaginable scale."

Improbable says it has already done a proof-of-concept to recreate an unnamed British city, based on open-source map, traffic, gas and electricity, water and sewage, Internet and mobile connectivity data.

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Rob Price was a senior correspondent at Business Insider, based in San Francisco. He wrote investigations and long-form features about platforms, people, and power in Silicon Valley.His stories variously led to attorney general investigations, large-scale internal reviews at major tech companies, high-profile personnel departures, citation by state and federal lawmakers, and the closure of a well-funded startup. His 2022 story on the Bitfinex hack is being adapted into a feature film, and in 2024 he received an SPJ NorCal Excellence in Journalism award for his reporting on AI and relationships.Rob's scoops and exclusive stories were cited by The New York Times, Bloomberg, the BBC, Associated Press, Reuters, CNBC, Politico, The Guardian, Axios, and many other national and international publications. His writing has also been published in or syndicated by The Washington Post, The Independent, Vice, Slate, and elsewhere, and he appeared on CNN, the BBC, CBS, Reuters, ABC Australia, and other broadcast media to discuss technology, business, and culture.He worked for Business Insider from 2015 to 2025. Prior to joining the features team, Rob covered Facebook and Silicon Valley, and before that wrote about tech business, policy, and the gig economy in London. Between September and October 2019, he was acting executive editor for Business Insider's UK bureau. He also sat on the board of directors for the San Francisco Press Club, the leading non-profit media advocacy group in the Bay Area, and was a volunteer crew member at the Marine Mammal Center, the world's largest animal hospital for marine mammals. You can contact Rob Price via email at robaeprice@gmail.com, or +1 650-636-6268 (Signal / WhatsApp / Cell). Selected stories:— They spoke out against their employer. Then they were hit with trade secrets suits. The rise of 'shadow stand-ins'App, Lover, Muse: Inside a 47-year-old Minnesota man's three-year relationship with an AI chatbotDeel Speed: The inside story of a $12 billion HR startup's breakneck growthPrivate islands, flying cars, and psychedelic parties: Inside the wild post-Google lives of Larry Page and Sergey Brin'I want your Instagram account': First came the threatening texts, followed by the SWAT teams. Then someone wound up dead.Inside Iconiq: How Mark Zuckerberg's banker built a secret Silicon Valley empire and made billionsGaia was a wildly popular yoga brand. Now it's a publicly traded Netflix rival pushing conspiracy theories while employees fear the CEO is invading their dreamsA drunken late-night assault allegation has roiled the secretive world of Mark Zuckerberg's private family office. Personal aides are speaking out about claims that household staff endured sexual harassment and racism from their colleagues.