sidion

Who owns sidion?

sidion was owned by Auctus Capital Partners through Auctus V (2019 vintage) from 2020 to 2025, exited via MBO.

Buyer identity available on Pro.

Hand-verified · updated 2026-08-10

About sidion

Sidion is a Stuttgart-based IT services provider that focuses on the design, implementation and operation of integrated solutions for digital business processes. Its portfolio spans IT strategy and consulting, integration and development, DevOps and cloud, and application services, positioning the firm in the mid-market IT integration and agile software development segment. The company serves large corporations, including DAX-listed groups, alongside mid-sized clients, running its delivery from three sites in Stuttgart, Munich and Frankfurt. According to the sponsor's disclosures, sidion employs more than 150 people across those locations.

Ownership journey

Sidion was founded in Stuttgart in 2001 and built a reputation as a specialist IT integration and software engineering house serving blue-chip German corporates. In 2020, Auctus Capital Partners backed the business through its Auctus V fund, structuring the deal as a buy-and-build platform in the IT services sector. Auctus V held the investment as its majority position through the subsequent years, supporting the company's expansion across its three German locations. In 2025, Auctus exited via a management buyout, and the fund is now listed among its former investments.

Under PE ownership

Under Auctus V ownership the business was run as a buy-and-build platform, with the sponsor's mandate centred on scaling the IT services offering rather than a single organic push. Over the holding period sidion consolidated a national footprint of three sites in Stuttgart, Munich and Frankfurt and grew to a workforce of more than 150 staff, per the sponsor's disclosures. Its service mix was broadened across consulting, integration, DevOps and cloud, and application services, anchoring the firm with large corporate and DAX clients. The investment cycle closed in 2025 when the management team took over the company through a buyout.