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Plum, a smart money and investment platform serving customers in Britain and Europe, has relied on multiple providers including Winterflood, Alpaca and Quai for elements of its investment operations. That fragmented setup can add integration work and operational complexity as a fintech expands across markets. Moving to a unified infrastructure is therefore significant for Plum’s ability to offer consistent products, streamline its technology stack and support growth under different UK and European market requirements.

Plum said it will adopt Upvest’s API and gradually retire its multi-vendor UK investment stack, replacing arrangements involving Winterflood, Alpaca and Quai. The change is intended to bring the company’s UK and European investment infrastructure onto a common underlying platform. Plum has not disclosed the value of the agreement, the number of customers affected or a final migration date. The transition will instead be conducted in stages, with Upvest becoming the central infrastructure provider for investment services across the two regions.