Class One Engineering Contractor · Since 2011
Powering Tanzania's Landmark Buildings & Infrastructure
Electrical, ICT, fire-detection, air-conditioning, mechanical-ventilation, solar and rural-electrification works for government, institutional and corporate clients.
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Years of experience
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Km of MV power line
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Transformers installed
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Solar street lights
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Customer connections
What we do
Engineering services under one roof
Electrical Installations & Power Distribution
LV/MV/HV electrical installation, main distribution boards and power supply — supplied, installed, tested and commissioned.
Learn moreICT & Structured Cabling
Structured cabling and ICT/ELV infrastructure for institutional and commercial buildings.
Learn moreFire Detection & Alarm Systems
Fire detection, alarm and heat-detector systems for safe, code-compliant buildings.
Learn moreAir Conditioning & Mechanical Ventilation (HVAC)
Air conditioning and mechanical ventilation systems — registered CRB Specialist Contractor, Class One in HVAC.
Learn moreSolar Street Lighting
Supply, concrete-base construction and installation of solar street lights at scale.
Learn moreRural Electrification & Power Lines
Medium and low voltage power lines, transformers and customer connections for rural electrification.
Learn moreOur work
Featured projects
Msalato International Airport — Electrical, ICT, Fire Alarm & HVAC
Dodoma, Tanzania · 2026
Pan African Postal Union (PAPU) — 19-Floor Multi-Purpose Building
Sekei, Arusha · 2023
Tabora Airport — Electrical, ICT, Fire Alarm & HVAC
Tabora, Tanzania · 2026
Tanzania Bureau of Standards (TBS) Laboratories
Plot 260 Block G, Ubungo, Dar es Salaam · 2018–2019
Mkwawa University College of Education (MUCE)
Iringa, Tanzania · 2018–2019
Rural Electrification — Lot 13 Priority Works, Western & Rwenzori, Uganda
Kabarole, Kakumiro, Kamwenge, Kasese, Mitooma & Rubirizi Districts · 2024
Why DIEYNEM
Built to be trusted on critical works
Class One registration
Licensed to bid and deliver the largest electrical and building-services contracts.
In-house teams
Multidisciplinary engineers and technicians across electrical, ICT, fire and HVAC.
Compliance & safety
OSHA and WCF registered, with documented standards on every site.
Nationwide delivery
Projects delivered for clients in Dar es Salaam, Arusha and across Tanzania.
Trusted by
Clients & partners
Have a project or tender? Let’s talk.
Send us your scope and we’ll prepare a detailed quotation — or invite DIEYNEM to tender on your next electrical, ICT, fire, HVAC or power-infrastructure works.