IESL Global
Beyond engineering
About Us
Our Story
Incorporated in 1990, International Energy Services Limited (IESL) is a pan-African energy services company dedicated to delivering top-tier engineering and technical support services within the energy sector. Our operations extend beyond Nigeria to encompass other African countries, including Mozambique, and Equatorial Guinea.
Our Services
Engineering Design
We provide comprehensive engineering design and technical services across oil and gas, power, and public sector projects. We also deliver end-to-end solutions, from conceptual studies and FEED to detailed engineering, procurement support, and construction supervision.
Oilfield Supply & Services
This business unit delivers end-to-end procurement, supply chain, and operations services, including logistics, EPC solutions for offshore living quarters and helidecks, ensuring cost-effective, safe, and compliant project execution.
Technical Services
We offer flexible consultancy, technical support and project management services tailored to client needs. Our solutions combine expertise, training, and skilled personnel to strengthen workforce capability and ensure safe, reliable, and efficient operations.
Environmental & Laboratory Services
We operate fully equipped, certified and government and NUPRC-approved environmental laboratories in Port Harcourt and Lagos, delivering high-quality environmental testing and monitoring services to the oil and gas and manufacturing sectors for over 25 years.
Power & Renewable Energy
We provide engineering design, construction management, and support for conventional and renewable power projects, delivering tailored solutions—from feasibility studies and substations to renewable systems and energy management—for reliable, efficient, and future-ready power infrastructure.
Our Services
Engineering Design
We provide comprehensive engineering design and technical services across oil and gas, power, and public sector projects. We also deliver end-to-end solutions, from conceptual studies and FEED to detailed engineering, procurement support, and construction supervision.
Oilfield Supply & Services
This business unit delivers end-to-end procurement, supply chain, and operations services, including logistics, EPC solutions for offshore living quarters and helidecks, ensuring cost-effective, safe, and compliant project execution.
Technical Services
We offer flexible consultancy, technical support and project management services tailored to client needs. Our solutions combine expertise, training, and skilled personnel to strengthen workforce capability and ensure safe, reliable, and efficient operations.
Environmental & Laboratory Services
We operate fully equipped, certified and government and NUPRC-approved environmental laboratories in Port Harcourt and Lagos, delivering high-quality environmental testing and monitoring services to the oil and gas and manufacturing sectors for over 25 years.
Power & Renewable Energy
We provide engineering design, construction management, and support for conventional and renewable power projects, delivering tailored solutions—from feasibility studies and substations to renewable systems and energy management—for reliable, efficient, and future-ready power infrastructure.
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Come work with us
200+ cumulative years of experience of the Management Team, 160+ Engineers from all disciplines and 80+ Administrative and operational staff
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