Decrown was founded to provide Engineering Services in Nigeria and West Africa Sub-region and develop indigenous expertise in an area previously dominated by Foreign Companies.
The Company operates as multi-sector engineering Consultancy Company. It is structured into six main departments as following:

i. Water Resources Engineering (Dam, Irrigation and Water Supply Schemes)
ii. Civil and Highway Engineering
iii. Construction Management and Supervision
iv. Environmental Assessment Department
v. Hydropower and Electromechanical Engineering
vi. Information Technology Department

Technical Personnel
Decrown is led by Eng. (Dr) J. B. O. Adewumi Ph.D, M.Sc, DIC, B.Sc C. Eng. The company has a pool of highly experienced indigenous and expatriate technical personnel to handle its range of products and services. In-house personnel include:-
Technical Personnel
• Civil Engineers                 
• Mechanical Engineers       
• Electrical Engineers         
• Surveyors                        
• Irrigation Engineers           
• Water Engineers
• Hydrologist                       
• Geologist                          
• Agricultural Engineers        

Our Engineers are trained and competent on the latest state-of-the art facilities for field investigation, Engineering Design and Management in our area of specialization. Notable among our design tools software's are:
• CivilCAD: Earthworks and Roads
• AutoCAD: All encompassing design tools
• Pipeflow: Pipe flow analysis for municipal water supply and sprinkler irrigation design