One Mortgage System (OMS) has announced a groundbreaking full API integration with Nationwide Building Society, marking a significant leap into the mainstream mortgage market for OMS and its first collaboration with one of the UK’s major high street lenders.
As of March 25, 2025, this integration empowers OMS users to access Nationwide’s comprehensive mortgage product range, thereby supporting faster, more informed decisions for brokers and their clients. Neal Jannels, managing director of One Mortgage System, underscored the importance of this step, noting, “The influence of Nationwide on the UK lending landscape continues to grow, at pace, and it’s reassuring to see a lender of its size and scale constantly looking to improve efficiencies, accessibility and product availability through tech partnerships which are hugely beneficial to advisers and their clients.”
This collaboration also signifies OMS’s momentous entry into the mainstream mortgage sector after a notable presence in more niche lending markets. Jannels enthusiastically added, “This integration represents a real breakthrough for OMS in the mainstream mortgage market following our rise to prominence across the more specialist lending sectors.”
With the integration of Nationwide’s application programming interface (API), brokers utilizing OMS can now seamlessly access a wealth of mortgage options. The technology firm reported that this enhancement would facilitate quicker decision-making processes for brokers, ultimately benefiting their clients by delivering “swift and informed” answers.
Andy Tilsley, head of intermediary digital at Nationwide Building Society, shared his insights on the significance of these technical integrations. He stated, “New technical integrations, like this one with One Mortgage System, makes it easier for brokers to do business with us and improves the service overall.” Tilsley emphasized that the use of data, combined with the capabilities of the API, assures brokers that they possess all necessary information in one place, enabling a more efficient mortgage process.
The move places OMS in a strategic position within the UK mortgage landscape and aligns with its wider objectives to become the preferred CRM solution for intermediary firms nationwide. Currently, OMS supports a broad array of mortgage products, including residential, buy-to-let, second charge, equity release, bridging, commercial loans, general insurance, and protection.
This connection with Nationwide also underscores the platform's ambition to ensure that brokers have access to reliable data and efficient processes in an increasingly competitive market. The integration promises to facilitate a Decision-in-Principle faster than ever before, demonstrating a commitment to enhancing user experience and service delivery.
As one of the UK’s six largest lenders, Nationwide is stepping up in terms of its technological partnerships, which are increasingly integral to modern lending solutions. This effort not only strengthens its own market position but also adds significant operational benefits for brokers working with OMS.
The rise of fintech solutions in the mortgage industry has catalyzed a transformation in how mortgage sourcing and processing is handled. With this improvement, brokers are not just equipped to meet current market demands, but to exceed their clients’ needs and expectations, thereby advancing the overall efficiency of the lending process.
In an environment where technology increasingly dictates market dynamics, the collaboration between OMS and Nationwide signals a proactive approach to harnessing digital capabilities for improved accessibility and service. It highlights the essential role that innovation plays in contemporary finance.
This partnership is likely to result in a surge of interest from other lenders seeking to enhance their own systems and integrations, potentially reshaping the landscape of mortgage lending in the UK. It paints a hopeful picture for brokers and clients who are looking for streamlined processes that facilitate quicker and more effective service.
The integration of One Mortgage System with Nationwide Building Society serves as a testament to the evolving nature of the lending market and the increasing reliance on technology to create solutions that support brokers and their clients effectively.
