Who we are
About Us
Delivering critical project support with expert teams and structured procedures across global markets
Client-Centric Commitment
Building Better Projects for You
DECI is an engineering, commissioning, and project delivery partner that supports the successful completion of complex infrastructure projects. Rather than acting as a construction contractor, DECI provides specialist technical expertise, management, and quality oversight to ensure critical systems are designed, installed, and commissioned correctly before handover.
Founded in 1994 and headquartered in Limerick, Ireland, the company works internationally across sectors such as data centres, life sciences, energy generation, and industrial infrastructure. By embedding experienced teams within client projects, DECI helps coordinate vendors, manage risk, and validate system performance so facilities are delivered safely, reliably, and fully operational from day one.
Our excellence in numbers
Our track record is built on measurable performance and dependable delivery across critical infrastructure projects worldwide.
YEARS OF EXPERIENCE
30+
Over 30 years of proven execution in complex, high-stakes environments.
Countries Operated
20+
Embedding experienced engineers within project teams across Europe, the Middle East, North America, and Asia-Pacific
COMPLEX SYSTEMS TESTED, VERIFIED, & COMMISSIONED
300+
Ensuring critical infrastructure performs reliably from day one.
Values That Define How We Deliver
Our core values
Our values are the foundation of how we operate on every project. They guide our decisions, shape our culture, and ensure we deliver the level of quality and partnership our clients depend on. These principles anchor our work in mission-critical environments where precision, trust, and accountability matter most.
Quality
We hold our work to the highest standards because our clients rely on systems that can’t fail. Every task, from design review to handover, is executed with precision, consistency, and a commitment to continuous improvement.
Delivery
We deliver with reliability and focus, ensuring projects stay on schedule and aligned with scope and expectations. Our teams are equipped to anticipate challenges early and resolve them quickly, keeping momentum without compromising quality.
Safety
We protect our people, our partners, and the environments we work in through rigorous processes, disciplined execution, and a culture that prioritizes safe outcomes above all else.
People
Our people are the core of our capability. We invest in developing skilled, confident teams who collaborate openly, think critically, and uphold the integrity that DECI is known for across complex global projects.
Leadership
Experienced professionals driving engineering innovation
Mission
Community involvement
Our work extends beyond project delivery. We are mindful of the communities that surround our sites and offices, and we take a measured approach to engagement that reflects our values of responsibility, safety, and long-term thinking.
Work With DECI
From early engagement through to completion, we collaborate closely with clients to deliver reliable, well-executed projects across global markets.