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August 20, 2025

Openbank partners with Upvest to deliver modern investing at scale

Julieta Varsano
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B2B Marketing
  • Openbank, the digital bank of the Santander Group, has chosen Upvest to power its investment offering and has successfully completed the migration of its existing end users.
  • The partnership begins with fractional stocks and ETFs for German end users, with further asset classes on the roadmap.
  • The move marks a major milestone in Upvest’s journey toward being the leading enterprise-grade investment infrastructure provider for Europe.

Berlin/ Madrid, 20. August 2025Openbank, part of the Santander Group, has chosen Upvest as its new investment infrastructure provider. By integrating Upvest’s Investment API, Openbank is strengthening its investment offer with a modern experience and deep localisation in the German market. This enables Openbank to offer a comprehensive, digital-first product range and a competitive user experience across all major asset classes to rival neo propositions.

The migration of Openbank’s investment products to Upvest marks a major vote of confidence in Upvest’s enterprise readiness and its ability to support some of Europe’s largest financial institutions. The partnership starts with fractional stocks and ETFs in Germany, providing end users with the ability to invest with as little as 1 Euro.

This strategic shift allows Openbank to benefit from cost-efficient investment infrastructure and pass those savings to their end users by offering low trading fees (only 0.20% of the transaction volume, starting from a minimum of 1 euro) and no custody fees.

The partnership underscores a growing trend among banks to move away from traditional providers and adopt API-first, modular investment infrastructures that support rapid innovation, cross-market scalability, and provide resiliency even during market instability.

This partnership with Openbank proves that modern investment infrastructure can meet the rigorous requirements of large financial institutions, while still offering the flexibility and speed needed to scale across markets. As the backbone of some of Europe’s fastest-growing fintechs, we’ve demonstrated our ability to provide stable services through market volatility. Now, we’re enabling established players like Openbank to stay ahead in an increasingly competitive landscape.

As Europe’s largest 100% digital bank by deposits, Openbank serves over 2 million end users and operates under the umbrella of Santander, one of the world’s leading banking groups. By partnering with Upvest, Openbank gains access to an end-to-end investment infrastructure that covers everything from brokerage, settlement and custody to regulatory compliance, all via a single API.

About Openbank

Openbank is the 100% digital bank of the Santander Group. It has over 2 million customers in Spain, Germany, the Netherlands and Portugal, and holds over €18.5 billion in deposits. The bank offers a wide range of products, from loans and mortgages to a fully automated digital investment platform that customers can sign up to 24/7 through the website or app. Openbank maintains its position as the most highly recommended Spanish bank among its customers thanks to its simplicity, agility and security. The bank recently launched in the United States and Mexico as part of its international growth strategy.

About Upvest

Upvest is on a mission to make investing money as easy as spending it. The company empowers businesses to offer a wide range of investment products and the best user experience in the fields of capital market investment and retirement planning. Upvest’s Investment API is easy to integrate so that fintechs and enterprises alike can save resources and fully focus on their core business.

Upvest is one of the few fintechs in Europe that can provide its B2B clients with the full range of investment opportunities in the areas of principal broking business, proprietary trading, and safe custody business. The company was founded in 2017 by Martin Kassing and currently employs more than 220 people across its hubs in Berlin, London, and Tallinn.

Upvest Press Contact:

Julieta Varsano

press@upvest.co