DECI Limited

With a vision to elevate engineering standards, DECI is a specialist engineering and commissioning firm operating across Ireland, mainland Europe, Middle East, and United States. We provide critical project support through expert personnel, structured procedures, robust controls, and industry-leading experience. DECI partners with clients in the mission-critical, infrastructure, life sciences, energy, and utilities sectors, supporting complex projects from design through to systems handover. Our highly skilled teams work closely with general contractors, developers, and facility owners to ensure project delivery is safe, efficient, and aligned with the highest quality standards. Our core offering includes: - Commissioning Management and Support - Project and Construction Management - Quality Assurance and Quality Control - HSE Oversight - OFCI Coordination and Vendor Management - MEP Systems Review and Compliance - Engineering and Technical Advisory Services With a growing team of professionals across multiple international sites, DECI brings agility, accountability, and long-term commitment to every engagement. Our approach is based on deep integration with project teams, fostering collaboration, transparency, and a shared goal of operational excellence. At DECI, we don’t just fill roles, we become embedded partners, delivering reliability, insight, and value at every stage of the project lifecycle.