Founded by Engineer Edward J. Davies
Engineer Edward J. Davies established EDA in 1963, beginning a consulting practice grounded in engineering service and Sierra Leone's infrastructure development.
About EDA
Engineering continuity with deep respect for Sierra Leone.
Edward Davies & Associates Ltd. is a Sierra Leone-based consulting engineering practice with experience across infrastructure design, supervision, surveying, geotechnical engineering, mapping, and related advisory support.
Leadership of Engineer Sam Leigh
Engineer Samuel Leigh, P.E. joined the practice in 1975 and succeeded Engineer Davies as Chief Executive Officer in 1978. His service as CEO/MD through 2025 represents 47 years of sustained leadership.
Future readiness
EDA is carrying its engineering experience forward through stronger project administration, responsible record keeping, and practical digital systems that support staff, contractors, associates, and management.
Sierra Leone Commitment
Infrastructure work shaped by place, patience, and field knowledge.
EDA's project history includes roads, bridges, drainage, water infrastructure, geotechnical engineering, mapping, dam inspection, and community-linked urban assignments across Sierra Leone.