About us
A Class One engineering contractor, building Tanzania since 2011
Multi-disciplinary electrical, ICT, fire, HVAC and power-infrastructure works — installed, tested and commissioned for government, institutional and corporate clients.
Who we are
One contractor, accountable end to end
DIEYNEM Co. Limited is a Dar es Salaam–based multi-disciplinary engineering contractor, incorporated in 2011 and registered with the Contractors Registration Board as a Specialist Contractor, Class One. Our work spans complete building services — electrical, ICT, fire-detection, air-conditioning and mechanical ventilation — alongside large-scale rural electrification and solar street-lighting infrastructure across Tanzania and Uganda.
We supply, install, test and commission complete electrical and electronic building systems — and we build the power infrastructure that energises them. One contractor, accountable from the 33kV switchgear to the last light fitting.
Our journey
Milestones
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2011 — Incorporated
Registered under the Companies Act 2002 and accredited by the Contractors Registration Board as a Specialist Contractor, Class One.
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Cross-border delivery
Rural-electrification works delivered in Uganda — extending our power-infrastructure capability beyond Tanzania.
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Landmark buildings
Complete electrical, ICT and HVAC systems for the 19-floor Pan African Postal Union building in Arusha and the Tanzania Bureau of Standards laboratories.
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2026 — National airports
Active works across national airport projects — installation, testing and commissioning at infrastructure scale.
“Quality is our Motto”
Documented standards, certified compliance and tested-and-commissioned delivery on every contract — from the largest tower to the last connection.
Our people
Leadership & technical team
A registered, multi-disciplinary team of directors, engineers and technicians.
Leadership
Maulidy Ngaiwa Juma
Managing Director & Board Chairman
Eng. Novatus Peter Lyimo
Technical Director & Company Board Secretary
Dickson Nathaniel Chungu
Finance, Human Resources & Administration Director
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.