- ABOUT US
Where the Partnership Began
SPEK began as a partnership between four founding companies,
symbolizing a shared commitment to quality, integrity, and innovation.
Skyline Properties Limited
Skyline Properties Limited is a part of DERM GROUP and a Class One contractor focused on the real estate sector in Tanzania. They own several buildings, including Sky City, Mwanga Tower, and Derm Plaza.
Pioneer Builders Limited
Registered as a class one contractor. The company has been involved in affordable housing, commercial, retail, residential, civil, and wastewater treatment projects. They have a sister company dealing with supply chain and logistics.
Emirate Builders Co. Limited
Emirate Builders is a class one contractor focusing on water infrastructure. They have sister companies such as Emirate Aluminum (with a market share of greater than 40% in Aluminum manufacturing and distribution in Tanzania) and Kadoo Bureau de change
Kings Builders Limited
Kings Builders Limited is a class one contractor focusing on infrastructure projects, including roads and equipment hire. They have a sister company, Quality Asphalt Limited, focused on the supply of asphalt, and KB Equipment, dealing with construction equipment.
SPEK is strategically affiliated with Mwanga Hakika Bank through major shareholding, strengthening its financial position and Market reach
- WHERE WE COME FROM
Know Our Story
Every great company begins with a conversation. For SPEK, it began with a recognition among four of Tanzania’s leading Class 1 contractors that the nation’s growing infrastructure demands required more than individual effort — they required unified strength.
Skyline Properties Limited (part of DERM Group), Pioneer Builders Limited, Emirates Builders Co. Limited, and Kings Builders Limited had each established remarkable track records independently. Skyline built a reputation in real estate and high-end construction, including the landmark SkyCity Mall, Mwanga Tower, and DERM Plaza. Pioneer earned its name in affordable housing, commercial, retail, and civil projects. Emirates Builders is an industry leader in water infrastructure, backed by Emirates Aluminium, controlling over 40% of Tanzania’s aluminium market. Kings drives forward road construction and infrastructure equipment hire through their sister company, Quality Asphalt Limited.
In 2021, these four companies formalized their alliance under SPEK. The group was built with a clear ambition: to pursue the largest, most complex projects in Tanzania and East Africa—the kind that only a combined force could credibly deliver.
Currently, SPEK Limited serves as an umbrella company overseeing JV SPEK, Silo Power, and SPEK Industries. Together, this group of companies delivers a diverse range of services across construction, manufacturing, energy, and power sectors in Tanzania.
Within just a few years, SPEK Group had secured landmark contracts including the East Africa Crude Oil Pipeline (EACOP) project — valued at over TZS 100 billion — the Julius Nyerere Hydropower Station (JHNNP) with Arab Contractors, and the Standard Gauge Railway (SGR) with Yapi Merkezi. Silo Power brought national electrification contracts with REA and TANESCO to the portfolio, while SPEK Industries established a state-of-the-art pipe manufacturing facility to serve the booming water, oil, and agriculture sectors.
Today, SPEK Group operates with over 340 pieces of equipment, a workforce of more than 1,000 skilled professionals, and a project portfolio exceeding TZS 200 billion in combined value. The group is positioned for continued growth — both within Tanzania and across the East African region.
SPEK Group Companies
Currently, SPEK Limited serves as an umbrella company overseeing JV SPEK, Silo Power, and SPEK Industries. Together, this group of companies delivers a diverse range of services across construction, manufacturing, energy, and power sectors in Tanzania.
JV SPEK is a registered Class 1 civil, building, mechanical, and electrical contractor. The main focus is on large infrastructure projects and the mining and oil & gas sectors.
- Focused areas
- Oil and gas sector
- Mining sector
- Large infrastructure projects
Silo Power is a class one contractor licensed to operate across three key sectors: Electrical, Heating, Ventilation, Air Conditioning (HVAC), and Telecommunications.
- Focused areas
- Government sectors power infrastructure projects
- Private sectors power infrastructure projects
Manufacturer of HDPE, PPR, and HDRC pipes. Our strength lies in having the latest technology, advanced manufacturing equipment, advanced raw material technology, combined with the most skilled manpower within the industry
- Focused Market
- Oil and gas sector
- Mining sector
- Agriculture sector
- Water infrastructure projects