Quantum has agreed to acquire Cashback.co.uk, JoinCustard.co.uk and the Custard mobile app from Submission Technology, with the transaction set to complete on 1 July 2026. The deal adds two consumer rewards brands to Quantum’s portfolio and marks its entry into the digital rewards and cashback segment.
Cashback.co.uk operates as a UK cashback platform, while JoinCustard.co.uk launched in October 2024 as a digital rewards and gifting platform. The Custard mobile app is included as part of the acquisition.
Quantum said the acquisition expands its footprint beyond affiliate marketing into direct-to-consumer rewards products. The buyer pointed to 36% year-on-year revenue growth in 2025 and recent launches in Ireland, South Africa and multiple US states, adding that it now operates across the UK, US, Ireland and South Africa.
Jamie Walters, CEO of Quantum International Holdings, said: “Cashback and Custard are proven platforms with loyal users, clear product-market fit, and strong commercial potential. What they need now is scale, and that is where Quantum can add real value.
“We have the data, technology, and performance mindset to grow these platforms quickly and responsibly. This is a bold move into a fast-growing consumer rewards space, and a natural next step in our ambition to connect more people with better value across the digital economy.”
Quantum said its Qi Platform will support the acquired assets through faster product iteration, improved personalisation and deeper insight into user behaviour, with its in-house data engineering, machine learning and software engineering teams supporting integration.
Neil Durrant, CEO of Submission Technology, said: “We built Cashback and Custard from the ground up, and we are incredibly proud of what the team has achieved. Quantum is the right home for these platforms.
“Their technology, commercial relationships and ambition make them well placed to take Cashback and Custard to a much bigger audience. It is an exciting next chapter for both businesses.” Financial terms were not disclosed.
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