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

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

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AYESA is a Spanish engineering and consulting firm that provides a wide range of services in the fields of engineering, architecture, and information technology. Here is an overview of AYESA:

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.