Cisbox and Millum have agreed to merge, creating a pan-European source-to-pay software provider backed by Main Capital. The combined entity will operate as a majority-owned Main Capital portfolio company, bringing together two complementary procurement platforms with strong recurring revenue profiles.

Cisbox, founded in 2005 and headquartered in Solingen, Germany, provides AI-powered procure-to-pay software serving over 17,500 customers across the DACH region. Millum, established in 2002 in Fornebu, Norway, offers Nordic procurement and order management SaaS with more than 450 direct customers and 18,000 end users across Scandinavia.

The merger significantly expands the group's geographic footprint across the DACH and Nordic regions, creating a broader, fully integrated product suite tailored to SME and mid-market customers. Main Capital invested in Cisbox in February 2024 and in Millum in January 2024, positioning the firm to build market-leading software groups in attractive product markets.