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We provide a wide variety of engineering, planning and environmental services for your municipal, commercial, residential, oil and gas projects such as. Engineering studies which may include, according to the type of project: Process, pressure vessels, rotating equipment, instrumentation, electrical facilities, piping, civil works, cost control and scheduling.

The Engineering studies include:
  • - Basic Engineering Design (BED) covering
  • - Oil and Gas Infrastructure Desgin
  • - Front End Engineering Design
  • - Detail Engineering Covering

Line Pipes, Structural Steel & OCTG

We supply line pipes of various diameter. Structural Steel such as Beams, Plates, Tubulars and Casings. We are in partnership with a number of internationally recognized and approved mills.

We supply large bore welded pipe in ERW, LSAW, HFI and Spiral DSAW, in varuing qualities and grades as high as X80
  • - Valves
  • - Fittings/Flanges
  • - Rotating Equipment


We undertake construction of residential, commercial and industrial building projects.

Procurement & Supply Chain Management

We procure oil field equipment and materials. We have established strong relationships with a huge array of Original Equipment Manufacturers (OEMs) as well as buying houses worldwide.

Here is a list of products and services we are able to offer from strong alliances with reputable international companies:
  • - Control Components Inc
  • - Jiuli Pipes
  • - Hengyang Vallin Steel Tube Co. Ltd.
  • - Xiamen Landee Industries Co. Ltd.
  • - Zhejiang Feipu Explosion-Proof Lectric Co. Ltd.
  • - Spencer Coating Co. Uk.

Construction & Fabrication

We fabricate structures such as: tanks, pipe racks, pipe supports, platforms, shelters. Our Construction and Fabrication strategic business unit engages in the following services such as:
  • - HP, LP Separators, and surge vessels
  • - Fabrication of Steel Structures, piping, Tanks
  • - Construction of Flow lines in Land and Swamp Areas
  • - Calibration of tanks
  • - Flare systems
  • - Pressure testing of hook up arm
  • - Installation and Commissioning of PD Metering Facilities
  • - See our PROFILE for more

NDT Inspection & Offshore Surface Protection

We are involved in all activities relating to surface preparation, cleaning, coating and environmental rotection. We work with all types of metals, including carbon steel, stainless steel, alloy steels, aluminum and brass, in thickness from sheet metal to plate. We have expertise in both traditional abrasive and high pressure hydro blasting.

Geotechnical & Surveying Services

We support all phases of a project, from preliminary design through completion of the building process, including Making judgments and advising owners on the structural and economic feasibility of a project from the standpoint of subsurface conditions and determining the physical and engineering characteristics of the soil/rock and their probable behavior under stress, interpreting this data and recommending design parameters.

Manpower Supply

Efficient manpower is the key to success for every organization. Harmonie provides a combination of global perspective with deep knowledge of our local market to deliver a unique experience in the supply of highly skilled technical manpower to the upstream sector.

Harmonie specializes in the recruitment of highly skilled technical personnel to Oil & Gas companies in Nigeria. We have a team of recruitment experts who are skilled at matching a client's specific requirement with a suitable candidate.