COTESA

COTESA GmbH is a German manufacturer of fibre composite components for aviation and the automotive industry. It describes itself as an owner-managed company, working from three sites with more than 400 employees, and it develops and builds components and assemblies to customer specifications.

The company concentrates on complex carbon fibre reinforced plastic parts such as profiles and stiffeners, multidimensional glass fibre sandwich structures, and hybrid parts such as drive shafts. Its offer runs from technology development and process design through to series production, under EN 9100:2018 certification.

Sites and capacity

The registered address is in Mittweida, Saxony. A second production site opened in Mochau in 2015 and brought the production area to 32,000 square metres, and the company also runs a plant in Döbeln. A plant in Changzhou, China, passed its EN 9100 audit in 2020.

Quality and approvals

• Nadcap accreditation for composite manufacturing since 2016, renewed with Merit status in 2024 and 2025
• Nadcap accreditation for non-destructive testing, first granted for ultrasonic testing in 2013 and recertified in 2024
• An accredited materials laboratory, recognised as a testing laboratory under DIN EN ISO/IEC 17025:2018
• First certification to ISO 50001:2018 for energy management in June 2026

Customers and recognition

The company reports delivering painted and assembled components to Airbus from 2017, and says Boeing placed an order for component manufacturing with it in June 2017. In October 2017 it received the Liebherr-Aerospace award as Best Improver of the year. It also takes part in regional training events to attract and keep young skilled workers.

Shows

COTESA appears in the exhibitor lists of JEC World 2027 and Paris Air Show 2027.

Contact

Bahnhofstraße 67, 09648 Mittweida, Germany
Listed under Manufacturers, Aircraft Manufacturers.
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