DENIS O'SULLIVAN & COMPANY LIMITED

Denis O'Sullivan & Company Limited (DOSA Consulting Engineers) is a multidisciplinary engineering practice dedicated to delivering design-led solutions that enhance the built environment. Drawing on a dynamic team of passionate professionals, DOSA provides a full suite of services-from structural and civil engineering to fire-safety design, health and safety compliance, and project management-tailored to the unique challenges of each project.

The firm's portfolio spans residential, commercial, healthcare, hospitality, education, renewable energy and industrial sectors, with notable projects such as the Sandycove development in Kinsale, Carnew Nursing Home in Wicklow, and the award-winning Sheen Falls Lodge in Kerry. DOSA also offers specialised roles as an Assigned Certifier, ensuring compliance with BCAR and other statutory requirements, and delivers PSD-based health-and-safety solutions across all works.

Serving clients throughout Ireland, DOSA combines cutting-edge technology with sustainable practices to create resilient, future-ready infrastructure while fostering lasting relationships and a positive impact on communities and the environment.