APTIV (Delphi Tunisia) is the Tunisian subsidiary of the global Aptiv Group, a leader in automotive technologies. Based in Tunisia, the company specializes in manufacturing wiring systems and electrical and electronic components for major international automotive manufacturers. It operates according to the most demanding industrial and quality standards, fully integrated into the global automotive industry value chain, with a strong emphasis on industrial performance, reliability, and local integration.

PEM Tunisia is part of the international industrial group APEM, specializing in the design and manufacture of high-quality human-machine interfaces (HMIs) (buttons, joysticks, keyboards, etc.) for various applications, with strong industrial integration and processes focused on innovation and digitalization, while respecting high environmental standards, notably through certifications such as ISO 9001 and ISO 14001. Their site in Tunisia (Ariana) participates in this global production by integrating the group's methods and tools to serve demanding customers.

Casco Automotive Tunisia, established in 2004 and located in the Bizerte Economic Activity Park in Menzel Bourguiba (north of Tunis, near Lake Bizerte), manufactures power supplies and sensors for major global automotive manufacturers (OEMs). Casco Tunisia is also a key supplier of automotive components to other Casco Group entities internationally, particularly in the United States, China, Germany, and Italy. In its manufacturing processes, Casco Tunisia utilizes both manual and semi-automated production equipment for its production lines, as well as semi-automated equipment for printed circuit board manufacturing, stamping, and overmolding operations.

Following the 2004 acquisition of the FILEC group, a specialist in the manufacture of automotive wiring harnesses with facilities in France and Tunisia, LECTRIC Tunisia became a subsidiary of the Amphenol group. In 2007, the Amphenol group opened a second production site to meet the growing demand in the automotive market.

Amphenol Corporation is one of the world's largest manufacturers of connectors and interconnect systems for a variety of applications in the military, aerospace, telecommunications, and industrial markets. Following the 2004 acquisition of the FILEC Group, a specialist in the manufacture of automotive wiring harnesses with facilities in France and Tunisia, LECTRIC Tunisia became a subsidiary of the Amphenol Group. In 2007, the Amphenol Group opened a second production facility to meet the growing demand in the automotive market.

The Tunisian Tire Manufacturing Company (STIP) was established on July 21, 1980. Its purpose is the manufacture and sale of tires. STIP is the sole tire manufacturer in Tunisia. The company has two production facilities: one in M'saken and one in Menzel Bourguiba. Production capacity is approximately 650,000 tires per year, or 15,100 tons, with the potential to increase this to 1 million tires per year.

ALIF Tunisia is a leading Tunisian company in the manufacture and distribution of automotive fluids and car care products, including brake fluid, coolant, windshield washer fluid, battery electrolyte, and engine additives, positioning itself as a trusted brand for vehicle performance and reliability in Tunisia.

The company "Nexans Autoelectric Tunisia" is an offshore company, a subsidiary of the German Nexans Autoelectric group.

AB INJECT SA is a company specializing in tooling development and plastic injection molding, serving demanding sectors such as automotive, medical, cosmetics, industry, agriculture, electronics, and bicycle accessories & reflective systems (AVR). Founded in 2020, the company is driven by the extensive expertise of its founders in the technical plastic injection molding industry.

AAF Production SARL is a Tunisian company specializing in cable assembly for the automotive industry. With over 25 years of experience and leveraging more than 100 years of pioneering expertise in high-frequency technologies through its German partner WISI Automotive GmbH & Co. KG, AAF Production supplies high-quality products that automotive manufacturers worldwide rely on for their RF communications, particularly automotive antennas.