Tunnelbuilder Competitors

We are an engineering, management and development consultancy and one of the largest wholly employee-owned firms of our kind. We plan, design, deliver and maintain the transport, energy, water, defence and security, and buildings infrastructure that is integral to people's daily lives. Our core strength is using our expertise to overcome complex challenges to deliver benefits for our clients and the communities they serve.

Sika is a specialty chemicals company with a globally leading position in the development and production of systems and products for bonding, sealing, damping, reinforcing, and protection in the building sector and industry. Sika has subsidiaries in 103 countries around the world, produces in over 400 factories, and develops innovative technologies for customers worldwide. In doing so, it plays a crucial role in enabling the transformation of the construction and transportation industries toward greater environmental compatibility. In 2025, Sika’s 33,700 employees generated annual sales of CHF 11.20 billion. On Sika's LinkedIn page we share our most important corporate news and job openings, as well as a broad mix of content from our Sika subsidiaries around the world. Your Career at Sika: https://www.sika.com/en/career.html Privacy Notice: https://www.sika.com/en/footer/privacy-notice.html

VINCI is a world leader in concessions, energy solutions and construction, operating in more than 120 countries. We are at the centre of the challenges facing today’s world, and our ambition is to play an active part in the energy and environmental transition of living spaces, infrastructure and mobility, while fostering social progress as a humanist group that stands for inclusion and solidarity. We harness our fields of expertise, our quest for innovation, our business model’s strength and our teams’ engagement to strive towards a goal that our 294,000 employees share: serving a useful purpose and caring for the planet. Take part in projects that are helping to sustainably transform local areas and urban ecosystems. Join us! 2025 key figures: - Revenue: €74.6bn - Business units: 4,300 in more than 120 countries - Employees worldwide: 294,000 - Worksites worldwide: 386,00