Your local engineering partner in West Africa.
AWSE supports institutional clients and international consortia across water, infrastructure and environmental & social safeguards — from feasibility to construction supervision.
Fluent in World Bank ESF · AfDB ISS/OS · IFC Performance Standards
The regional partner international groups rely on.
AWSE is the West-Africa engineering firm international consortia team up with to bid and deliver donor-financed projects across the region. Headquartered in Freetown, with operations across Sierra Leone, Guinea, Liberia, Ghana and Mauritania — direct relationships with public administrations, and fluent command of World Bank, AfDB and IFC environmental & social frameworks.
Regional presence, rooted locally
Permanent Freetown base and direct relationships across West African administrations — ministries, utilities and road authorities. Operating footprint: Sierra Leone, Guinea, Liberia, Ghana and Mauritania.
Command of donor frameworks
Deep familiarity with World Bank ESF/ESS, AfDB ISS/OS and IFC Performance Standards — the frameworks that govern donor-financed projects.
Multidisciplinary engineering
Water, transport infrastructure, structures, hydrology, geomatics and environmental & social safeguards under one roof.
Fields of operation
Nine complementary engineering fields, one integrated team.
Environmental & Social Safeguards
The competency that makes AWSE the preferred local partner for donor-financed consortia: deep familiarity with World Bank, AfDB and IFC environmental and social frameworks.
Feasibility, Design & Tender Support
The engineering studies backbone international consortia rely on — from feasibility to tender documents, to international standards.
Hydrogeology & Borehole Drilling
Evidence-led groundwater siting, drilling, testing and equipping — from desk study to a tested production borehole.
Geomatics & UAV
LiDAR, GNSS/IMU direct georeferencing and high-resolution photogrammetry from UAV platforms, delivered as an end-to-end workflow.
Water Supply
Feasibility, design and tender support for drinking-water supply schemes serving large and small towns as well as rural communities.
Water Treatment
Conventional, advanced and membrane treatment lines, from concept to commissioning — including modular containerised systems.
Roads & Transport
Traffic engineering, feasibility studies, corridor and alignment studies, road design and traffic analysis for Sierra Leone’s strategic road network.
Bridges & Structures
Structural design, bridge and culvert sizing, cost estimates and field inspections for bridges, retaining walls and hydraulic drainage structures.
Water Resources
Resource assessment, watershed management and natural-hazard engineering — including climate-change adaptation and mitigation.
Environmental & Social Safeguards, a framework we command.
AWSE knows the donor safeguards inside out — World Bank ESF/ESS, AfDB ISS/OS and IFC Performance Standards — and helps international consortia navigate them on the ground in Sierra Leone and across West Africa.
Delivered experience
Sierra Leone track record.
- 21
- References delivered
- 4
- Institutional clients
- WB · AfDB
- Donor-financed programmes
- Since 2015
- EPA-SL registered
- 18
- Road corridors studied
- 100,000 m³/day
- Largest water scheme designed
Feasibility, design, tender documents & ESIA across water and roads (2018–2022).
Ministry of Water Resources, Ministry of Finance, SLRA and Guma Valley Water Company.
Missions under World Bank and African Development Bank frameworks.
Environment Protection Agency of Sierra Leone — environmental & social practice.
Feasibility, design & ESIA on SLRA Strategic Roads (Package III) sections.
Rokel River treatment plant & 60 km transmission (phase II: 200,000).
Working under the frameworks of
Frameworks that govern the donor-financed projects AWSE has worked on.
Across the full project cycle
We accompany our clients from the earliest studies through construction supervision and capacity building.
Feasibility & Studies
Feasibility Study Reports, due-diligence and options analysis to secure funding decisions.
Engineering Design
Preliminary, final and detailed design, technical specifications, work drawings and Bills of Quantities.
Tender & Procurement Support
Preparation of international-standard tender documents and support to bid evaluation.
Construction Supervision
On-site supervision, quality assurance and reporting to clients and donors.
Technical Assistance & Capacity Building
Institutional support, technical assistance missions and training of local counterparts.
Rokel River Water Supply Project
Feasibility, preliminary and detailed design, and tender documents for a 100,000 m³/day drinking-water treatment plant and a 60 km transmission main supplying Freetown East.
- client
- Ministry of Water Resources
- location
- Rokel intake to Freetown, Sierra Leone
- scale
- 100,000 m³/day (phase II: 200,000) · 60 km transmission
- year
- 2018 – 2019
Building your next mission in Sierra Leone or across West Africa?
Whether you are an institutional client, a donor or an international consortium, AWSE brings the regional presence and the donor-framework fluency to deliver.