The Open Finance Association (OFA) is a not-for-profit trade association dedicated to promoting secure, open application programming interfaces (APIs) in the financial services sector. OFA represents companies that advocate for innovative solutions through enhanced access to financial accounts via these APIs. Operating from Brussels and London, OFA actively influences key developments in open finance in both regions. The organization serves as a champion for competition and innovation within the financial industry.

Ostia is a technology company that specializes in creating on-demand testing systems and sandboxes through its Portus technology and Extended Virtual Service Framework (EVS). The company offers services that allow organizations to test the integration of complex back office systems with applications, focusing on Big Data and Business Information Systems. Ostia's flagship project, the PSD2 Open Banking Ecosystem, provides a fully functional transactional sandbox for testing end-to-end transaction processes for Open Banking products, facilitating compliance with the Open Banking Implementation Entity's API standards. The company operates within the information technology services sector, emphasizing data integration, real-time data extraction, service virtualization, and hybrid cloud solutions.

OpenIT is a service provider focused on delivering an Open Data platform that ensures rapid compliance with global Open Banking FAPI and Open Finance regulations. The platform addresses security and digital identity requirements associated with PSD2, Modified Customer Interface (MCI), and PSD2 Fallback. OpenIT specializes in Information Technology and Services, enabling seamless integration and compliance for financial institutions.

Falcker is a high-tech company that specializes in digitalized drone-based inspection services for the petro-chemical industry. Utilizing advanced technologies such as photogrammetry, 3D modeling, FLIR imaging, robotics, artificial intelligence, and the Internet of Things, Falcker integrates cutting-edge equipment with traditional inspection methods. The company focuses on providing smart business applications that enhance insights into asset status, with capabilities in measuring ovality, setting and tilt, heat loss and hotspot detection, and altitude measurements. As a service provider, Falcker is committed to helping customers implement innovative inspection techniques in the oil and energy sectors.

C Zero Life is a GreenTech company that specializes in developing SaaS solutions for Zero Carbon adoption aimed at both individuals and corporations. The company offers an assurance framework that includes an independent approved verifier for greenhouse gas emissions based on primary data and distributed ledger technology (DLT) transparency, alongside sector-specific criteria. Their Open API and Open Data Platform enable interoperability with other SaaS applications and NGO projects, focusing on ESG data services, sustainable finance, climate risk management, and sustainable reporting.

OpenPower Systems is a small and responsive IT service provider based in Bishop's Stortford, United Kingdom. The company specializes in delivering affordable and effective software solutions by leveraging open-source software to meet critical business functionality. OpenPower Systems focuses on understanding, enhancing, and maintaining these solutions to ensure quality and industry-wide acceptance.