Maesn Unified API secures funding to accelerate the future of software integration
- Dr. Themo Voswinckel ⎪Co-Founder
- Nov 5
- 3 min read
Düsseldorf, 04.11.2025 – Maesn, the Integration Platform and Unified API enabling seamless data flows across business and financial software, today announced the successful closing of a 2.3 Mio. € funding round. The new capital will be used to expand the platform, strengthen AI capabilities, accelerate go-to-market, and further scale partnerships with SaaS companies and implementation service providers.
Solving one of today’s biggest SaaS challenges
Companies rely on more software systems than ever before – from ERP and accounting to CRM, payroll, time-keeping, billing, AP/AR and so on. But as software stacks grow, so does the demand for interoperability and integrations between these systems. But Integrations are still slow, expensive, and resource-intensive, often becoming the bottleneck for product teams and a source of frustration for customers.
Maesn is removing this friction. With a single unified API, Software teams can integrate, synchronize, and orchestrate financial and business data across systems in a fraction of the time. Platforms like HubSpot, Tipalti, Findity, Hero or clockin already rely on Maesn to offer seamless financial data transfer to platforms as DATEV, Sage or Exact Online to their customers - without needing to build and maintain dozens of individual integrations.
Welcoming get.de – a long-term company-building partner
Maesn proudly welcomes get.de as the newest investor in this round. What sets get.de apart from typical venture investors is their long-term company-builder DNA. They don’t invest based on a 3–5 year fund cycle, they invest to scale companies and stay for the full journey.
This gives Maesn the long-term security to focus on what matters most: building the best product to create the happiest customers.
Robin Tschöpe, Managing Partner at get.de: “Maesn is a software solution we as entrepreneurs have searched for many times ourselves. With its abstracted data model and API-first approach, ERP systems and business software such as Sage, DATEV or Visma eAccounting can be integrated easily. Especially B2B SaaS companies that need to transfer data into their customers' systems benefit from Maesn. Instead of integrating many systems individually, they use the Maesn API, which handles the integration for them. We are excited to actively support Maesn in their growth.”
Returning and existing investors we are proud to build with
Alongside get, we are happy to continue our journey with highly respected investors that bring both capital and deep strategic value:
Known for backing developer-focused infrastructure and API-driven startups. tiny.vc has a reputation for being one of Europe’s most founder-friendly early-stage funds, backing multiple unicorn companies from the first minute and empowering technical founders building the next generation of software tooling.
About NRW.BANK
A powerhouse in the German innovation ecosystem and one of the most impactful public funding partners for high-growth tech ventures. With a total funding volume of around €6.9 billion in the first half of 2025 alone, NRW.BANK plays a crucial role in shaping the economic and technological landscape of North-Rhine Westphalia. Their support enables Maesn to innovate and scale from a strong regional foundation into Europe and beyond.
About our exceptional Private Investors
Successful entrepreneurs and industry operators who have built and scaled companies themselves. They are actively supporting Maesn with hands-on expertise, network access, and operational mentorship. Their guidance significantly accelerates our learning curve and strategic execution.
What’s next for Maesn Unified API
The investment will further accelerate the roadmap, with focus on:
Expanding Maesn’s Unified API Integration Platform
Adding more ERP, Accounting, Payroll, POS, invoicing systems, ... to the unified API
Growing our partner ecosystem with implementation and integration service providers
Scaling Customer Success, Engineering, and GTM teams
Our ambition with the funding is clear:
Maesn is building the leading integration platform for financial and business software in Europe, enabling software teams from SaaS companies, enterprises and service consultancies to finally achieve true interoperability without complexity.
About Maesn
Maesn was founded in 2022 with the mission of enabling seamless interoperability across financial and business software. With its Unified API, Maesn empowers software teams to connect, synchronize and orchestrate data across ERP, accounting, payroll and other business systems in a fast, scalable and reliable way.
Today, hundreds of companies transfer their data through Maesn every day - embedded in solutions provided from SaaS providers to enterprises and consultancies. By replacing complex, slow and costly point-to-point integrations, Maesn helps its customers launch integrations faster, deliver superior product experiences and scale their business without technical overhead.
