Ethos Engineering Expands Footprint with 3DEC Acquisition
Ethos Engineering, a prominent Irish leader in sustainable data centre design, has recently announced its acquisition of 3DEC Ltd., a technology design consultancy based in the UK. This strategic move marks a significant expansion of Ethos Engineering's capabilities and service offerings, particularly within the technology design sector.
The acquisition was reported on January 15, 2026, and represents Ethos' second acquisition since receiving investment from private equity firm Exponent in 2024.
Strengthening Expertise in Sustainable Design
Founded in Ireland in 2005, Ethos Engineering has established itself as a Dublin-based engineering consultancy specializing in designs for sustainable buildings, with a particular focus on data centres. The company has experienced substantial growth, expanding its team to 259 employees and opening offices in the UK and the Netherlands, alongside its new purpose-built headquarters in Dublin.
Ethos is recognized as a market leader in data centre delivery across EMEA, having designed over 90 data centres across 19 countries, representing more than 2 GW of capacity. The firm's commitment to sustainability and energy efficiency in data centre design is a core aspect of its operations.
3DEC Ltd.: A UK Technology Design Specialist
3DEC Ltd., founded in 2011 and based in London, is a technology design consultancy known for its services to data centres, commercial workplaces, and educational environments. The company brings specialized expertise in:
- ICT (Information and Communications Technology)
- Audiovisual (AV) systems
- BIM-led design (Building Information Modelling)
- Project management
With a team of over 40 engineers, 3DEC also offers comprehensive IT design and consultancy, documentation, and infrastructure management services.
Strategic Rationale and Future Outlook
The acquisition of 3DEC is a pivotal step for Ethos Engineering, aligning with its strategy to accelerate growth, broaden its service offerings, and increase its headcount. Anthony Clegg, a Partner at Exponent, commented on the acquisition, stating, 'This acquisition is an important milestone for Ethos as the company continues to accelerate growth, broaden its service offering and increase headcount.'
This integration will enhance Ethos' ability to provide end-to-end design solutions for complex technological infrastructures, particularly in the rapidly expanding data centre market. Ethos Engineering has indicated its intention to continue exploring strategic acquisition opportunities to further expand and enhance its service portfolio for clients.
5 Comments
Comandante
Private equity is behind this. Expect layoffs and cost-cutting soon.
Africa
While it's good to see Ethos expanding its reach and capabilities, the environmental footprint of data centers, even sustainable ones, remains a concern. I hope they truly prioritize green practices over sheer scale.
Bermudez
Huge companies getting huger. Where's the benefit for the average consumer?
Habibi
This move solidifies Ethos' position as a market leader, which is impressive for an Irish firm. Yet, I wonder if such rapid expansion, especially through acquisitions, can maintain the quality and specialized focus that made both companies successful individually.
ZmeeLove
What about 3DEC's unique culture? It'll just be absorbed into a larger machine.