Ethos is a multidisciplinary consultancy shaping high-performing buildings across Ireland and EMEA. As Ireland’s largest MEP practice and a recognised European design leader, we combine technical depth with a strong client focus and a culture grounded in ambition and innovation. Our work drives mission-critical data centres and advanced industrial environments, delivering the critical systems that form the core of our clients’ buildings.
Founded in 2005, Ethos has grown into a versatile team of more than 240 people. From our new Dublin HQ in Bankside, our regional office in Galway and our presence in London, we excel across mechanical and electrical engineering, sustainability services, digital delivery, ICT, AV and security solutions, BIM modelling, and design and project management. With the integration of SimStudio, our capability extends further into advanced simulation and CFD studies.
Backed by Exponent, Ethos has delivered projects in 19 countries and maintains strong relationships with more than 400 repeat clients. Our recognition as a Deloitte Best Managed Company reflects this commitment to strong delivery and organisational excellence. As members of the First Q network of leading European consultancies, we contribute and benefit from shared best practice, strengthening the insight we bring to complex projects.
Our culture is shaped by the values of Excellence, People, Innovation and Clients. Sustainability is a core driver of our engineering approach. Our specialist team advises on carbon, energy, certification frameworks and wider ESG priorities, and guides Ethos’ own environmental commitments. This technical focus is strengthened through innovation, where proprietary digital tools and AI-enabled systems enhance performance modelling, design efficiency and decision-making across projects.

Ethos is defined by the partnerships it builds, the performance of its teams and the technical confidence behind every design. With continued global growth, Ethos remains focused on serving clients with excellence and positively contributing to the built environment.