Bryan, Garnier & Co acts as Sole Financial Advisor to SII Group backed by Blackstone, on the sale of SII Precision Parts GmbH, to Callista Private Equity

Founded in 1993, SII Precision Parts GmbH is a leading player in the manufacturing of high-precision components, primarily serving the automotive and industrial sectors, based in Germany.

Equipped with state-of-the-art machinery, including five-axis machining centers and twin-spindle machines, the company produces prototypes, individual parts, and series components, all adhering to exceptional quality standards.

Initially a secondary activity within the SII Group, which specializes in IT and engineering services, SII Precision Parts GmbH was not part of the long-term strategic vision of its previous owner. Despite solid operational performance in recent years, the decision to sell the company to a new owner, capable of fully realizing its potential, became a natural and strategic evolution.

This acquisition aims to fully leverage the company’s existing strengths and drive targeted growth. A name change and complete rebranding will be implemented to position SII Precision Parts GmbH as a key player in a promising market.

Bryan, Garnier & Co acts as Sole Financial Advisor to SII Group backed by Blackstone, on the sale of SII Precision Parts GmbH, to Callista Private Equity.

Bryan, Garnier & Co conducted a dual-track competitive process involving Tier-1 German and international private equity investors and engineering companies.

This marks another landmark transaction for Bryan, Garnier & Co’s Business & Tech-enabled Services practice, and it is a further demonstration of its expertise in engineering sector. Other notable transactions include the sale of Technic Assistance to NEO2, supported by CAPZA and Turenne Groupe, and the acquisition of Iplan Gestión Integral by Vulcain Engineering, backed by Equistone and Sagard.

Founded in 1993, SII Precision Parts GmbH, headquartered in Augsburg and employing approximately 40 people, specializes in the development and production of high-precision components made from a wide range of materials.

Equipped with a state-of-the-art machinery fleet, including five-axis machining centers, twin-spindle machines, and milling machines, the company stands for the highest quality standards. Prototypes, individual parts, and series components are manufactured with the utmost commitment to customer satisfaction.

SII Precision Parts GmbH operates mainly in the automotive and industrial sectors. It has become the preferred partner of several blue chip clients including SEW, Vitronic Evoqua Mercedes Benz and Technotrans.


Callista Private Equity focuses on acquiring struggling group subsidiaries, non-core affiliated companies, and business units in special situations. The firm drives success through strategic restructuring, ensuring long-term profitability.

Callista Private Equity’s experienced international team swiftly takes control of acquired companies, focusing on carve-outs and rapid restructuring to drive early recovery, long-term profitability, and potential divestment. It targets companies with revenues between €10m and €200m.