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EGIS is a global engineering and consulting group based in France, specializing in the fields of transportation, urban development, buildings, water, and the environment. Here is an overview of EGIS:

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Supplier & manufacturer of tunneling mining and specialist ground support products.

Mott MacDonald is a global engineering, management, and development consultancy firm headquartered in the United Kingdom.

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Maintenance and repair services of other machinery and equipments

SYSTRA is a global engineering and consulting firm that specializes in transportation and mobility solutions.

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RINA S.p.A., commonly referred to as RINA, is an Italian multinational company that provides engineering and certification services to various industries. The company offers a wide range of services, including testing, inspection, certification, and consulting, to support businesses in achieving compliance, quality, and sustainability goals.