BASSETTI publishes and integrates TEEXMA®, software designed to capitalize on the technical data of industrial companies within a collaborative work environment. Beyond data management, TEEXMA® enables the leveraging of high-value technical expertise. In addition to its software publishing activities, the company offers consulting services in the field of enterprise knowledge management. Technical data management is essential for businesses; therefore, Technical Expertise Management® focuses on implementing methods, processes, and tools aimed at structuring, capitalizing on, and disseminating high-value technical data within the company.

Autoliv Tunisia is the Tunisian subsidiary of the Autoliv Group, a world leader in automotive safety systems (airbags, seat belts, steering wheels, and occupant protection solutions). It operates several industrial sites in El Fahs and Nadhour (Zaghouan Governorate) and employs several thousand people to produce high-security components for major automakers, particularly for European markets. The company is strengthening its presence with factory projects integrating advanced technologies and clean energy, confirming Tunisia's position as a strategic hub for the global automotive industry.

ASSAD Tunisia is a leading Tunisian industrial group specializing in the manufacturing, distribution, and recycling of electric batteries for the automotive, industrial, and energy sectors. With decades of expertise, ASSAD operates according to high standards of quality and sustainability, and has a strong presence in both local and international markets, particularly in Africa and Europe.

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.

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