How Thought Machine Makes Money: The Core Banking Platform Powering Global Banks

Paul Taylor sold two speech-technology companies, Rhetorical Systems to Nuance in 2004 and Phonetic Arts to Google in 2010, then spent three years at Google. In 2014 he left to fix banking's plumbing.

That decision now underpins a business with revenue above $100 million, according to the company. This is how Thought Machine makes money, and what its numbers do and don't tell us.

How Thought Machine Makes Money

Thought Machine makes money through long-term contracts with banks, with fees tied in part to usage on its platform, including the number of customer accounts live on Vault.

That is the CEO's own description. Paul Taylor told Tech.eu in July 2026 that a bank client "will start small with a few hundred thousand accounts live and they put more and more traffic through it".

Banks pay. Consumers never see the company at all.

The exact price per account is not public, and we won't guess at it. What the company does describe is "a highly predictable revenue model of long-term contracts". That is the clearest answer available to how Thought Machine makes money.

Two Products, One Platform

Thought Machine's Vault platform has two core products: Vault Core, a cloud-native core banking platform, and Vault Payments, which processes payments across all types and schemes.

A core banking platform sits at the centre of a bank's everyday products and processes, including accounts, deposits, lending and transaction processing. Vault Core separates cloud hosting from product logic, which lets banks retire legacy systems progressively.

Taylor's reasoning was simple. In a 2020 interview with Authority Magazine, he said banking "still runs on ancient mainframe technology" while other industries had moved to the cloud. Cloud-native core banking was his answer.

Flat for Two Years, Then a Jump

Thought Machine revenue reached £74.8 million in 2025, up 57% on the previous year, according to FinTech Futures' reporting on the filed accounts.

The company described this as exceeding $100 million when it reported its audited results. Annual recurring revenue also crossed $100 million as of Q2 2026, "driven by multi-year commitments for several tier 1 bank migrations".

The story before that was flat.

The company also reports positive free cash flow in the second half of 2025. Taylor credits rising deal values, telling Tech.eu that costs have been "broadly even" for four years while revenue climbed.

Paid Per Live Account

Under Thought Machine's usage-based model, revenue can rise as more customer accounts go live on the platform.

That is why timing matters. Deutsche Bank signed a global licensing agreement with Thought Machine in August 2026, but under the announced German rollout, products only begin migrating from 2027. Old and new systems run in parallel during the transition.

Signing a contract and going live are different things. For a founder building infrastructure software, that gap is the business. It explains why Thought Machine revenue tends to trail the headlines about new deals.

One caveat, stated plainly: the per-account fee comes from a single interview. No published contract terms confirm it.

Why Banks Are Leaving Legacy Behind

Banks are moving to cloud-native core banking because their legacy systems are fragmented, costly to change and slow to launch new products on.

Deutsche Bank's Private Bank is the clearest recent example. It plans to cut its core banking systems from 15 to two, with Vault Core as the first selection. Its broader transformation programme, not spent on Thought Machine, involves around €600 million in IT, operations and AI by the end of 2028 (Deutsche Bank, 27 August 2026).

Taylor frames the shift as a change in ambition. Large banks, he said in July 2026, "are no longer thinking of cloud-native core technology as being solely for greenfield business". That is the company's view, but the Deutsche Bank deal fits it.

A $2.7 Billion Number From 2022

The last Thought Machine valuation on record is $2.7 billion, set in May 2022 after a $160 million Series D led by Temasek.

Since then, the company has declined to name a new figure. Taylor told Tech.eu: "We are trying to put less emphasis on valuation and more emphasis on commercial success." Any Thought Machine valuation quoted today is therefore a 2022 number.

Later funding is reported differently by different outlets. Tech.eu, citing filings, reported £44.8 million from existing investors in July 2025. FinTech Futures, reporting on the audited accounts, described a £51 million Series E in the same month. We can't reconcile the two figures, so we cite both.

A further £30 million transaction was completed on 27 May 2026. Only £9 million was new money, through convertible loan notes. The other £21 million was a secondary sale of employee share options (FinTech Futures). Founders reading headlines should note the difference.

Who Signs the Cheques

Thought Machine said in July 2026 that it had signed 68 banks across more than 30 countries, including 18 of the world's largest institutions. Its August Deutsche Bank announcement put the tier 1 count at 20.

Those are the company's own figures, and we haven't independently verified them. Named clients include Lloyds, JPMorgan Chase, Intesa Sanpaolo and Danish challenger bank Lunar. Lloyds and SEB have also been investors.

Geography surprises people. Only around 15% of revenue comes from the UK, with the US the biggest market. Thought Machine revenue is far more American than a London address suggests.

Crowded Field, Bigger Rivals

Companies operating in cloud-native core banking include 10x Banking, Mambu and Starling's Engine, alongside established providers such as Temenos and Finastra (Tech.eu, July 2026).

Crassula's 2026 vendor guide identifies Temenos Transact as the most widely deployed core in its assessment, a reminder of the scale Thought Machine is up against.

Thought Machine claims more tier 1 contracts than all next-generation rivals combined. We can report the claim. We cannot verify it.

What Could Go Wrong

The main risk is that revenue depends on banks completing long, complex migrations, and Thought Machine has not yet reached sustained accounting profitability.

Deutsche Bank's product migrations start in 2027, so the commercial impact will develop over the rollout rather than immediately. Delivery also leans on partners: Deutsche Bank chose GFT as its system integrator.

The company reported positive free cash flow in the second half of 2025 and says its losses have narrowed. Outlets report different loss figures, so we won't quote one here.

Several major banks are both customers and shareholders. That is an unusual overlap.

The Slow Build Founders Should Study

Thought Machine shows that a UK-built infrastructure company can sell to the world's largest banks, though it took more than a decade of product development, bank contracts and multiple funding rounds.

Its revenue is US-led, and Taylor described London IPO conditions as "difficult", saying a listing would not come before 2028.

For founders, the lesson is unglamorous. Infrastructure sales run on multi-year contracts and slow rollouts. The story is less a sudden breakthrough than a long build that has begun to compound, and cloud-native core banking is where it now shows.

It is also the plainest answer to how Thought Machine makes money: patiently, one migration at a time.

FAQs

1. How does Thought Machine charge banks?

Thought Machine charges banks a usage fee based on the number of accounts live on its platform, according to CEO Paul Taylor. Deals are structured as licensing agreements and long-term contracts. The company does not publish its prices.

2. Who are Thought Machine's competitors?

Companies in cloud-native core banking include 10x Banking, Mambu and Starling's Engine, alongside established providers such as Temenos and Finastra (Tech.eu, July 2026). No reliable market-share data is publicly available.

3. How much funding has Thought Machine raised?

Thought Machine has announced a $125 million Series B in 2020 (an $83 million round plus a $42 million extension), a $200 million Series C in 2021 and a $160 million Series D in 2022, plus later transactions. No single reliable total is published, so we haven't stated one.

Also read: James Dyson Inventions and the Mistake That Built Dyson

Sources: Thought Machine press releases (2020 to 2022, July 2026, August 2026); Deutsche Bank (27 August 2026); Tech.eu; FinTech Futures; Crassula; Authority Magazine. Figures reflect the most recent available data at the time of writing.

The EP+ Editorial Desk covers UK startups, founders stories, and venture capital. All editorial content is independently produced and human-reviewed before publication.