International Energy Services Limited (IESL) is a pan-African energy services company incorporated in 1990. It provides engineering design, technical support, and supply chain services primarily within the oil and gas, power, and public sectors. The company operates in Nigeria, Mozambique, and Equatorial Guinea, with offices in Lagos, Port Harcourt, and Warri in Nigeria, as well as Maputo and Malabo.
IESL’s service areas include engineering design from conceptual studies to detailed engineering, oilfield supply and logistics, technical consultancy, and environmental testing. It operates certified environmental laboratories in Port Harcourt and Lagos that serve the oil and gas and manufacturing sectors. The company also offers support for conventional and renewable power projects, including feasibility studies and construction management. IESL states it has maintained technical collaborations with partners such as Doris Engineering and STAT Marine for over 15 years and serves a portfolio of international oil companies.
The company’s workforce includes engineers from various disciplines and administrative staff. Recent project work has involved engineering design for clients such as TotalEnergies, Shell, and SNEPCO, as well as project management for power plant emergency gas supply. IESL describes its management team as having over 200 cumulative years of experience.
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