Trans Amadi Industrial Layout is the operational heart of Nigeria’s petroleum services sector. Located in Port Harcourt, Rivers State, this thousand-hectare industrial zone is home to fabrication yards, engineering contractors, drilling support firms, and logistics operators serving the wider Niger Delta.
For operators running pipeline projects, offshore support activities, drilling operations, or facility maintenance, Trans Amadi is a strategic base of operations. Below is a directory of oil and gas servicing companies with a confirmed presence in the layout, followed by a practical guide to the occupational health and HSE requirements that come with operating a workforce there.
This directory is actively maintained and expanded as new listings are verified — see the submission box below if your company should be included.
Trans Amadi Servicing Firms Directory
An alphabetical directory of indigenous and international servicing firms with verified operations in the Trans Amadi industrial corridor.Verified Company Listings
AOS Orwell Limited
One of Nigeria’s largest indigenous oilfield servicing companies, formed from the 2011 merger of Africa Oilfield Services and Orwell International.- Location: Plot 52/53, Trans Amadi Industrial Layout, Port Harcourt
- Core Focus: Wellbore construction, process automation & control, oilfield tubular and accessories manufacturing & repair.
- Website: aosorwell.com
Airyolk
An established industrial services company supporting engineering and operational activities across Nigeria’s oil and gas industry.- Location: 129–132 Trans-Amadi Industrial Layout, Old Michelin Yard, Oginigba, Port Harcourt
- Core Focus: Engineering services, industrial support solutions, project execution support.
Almasi Oil and Gas Services
Specializes in drilling support products and casing accessories designed to improve drilling efficiency and operational performance.- Location: Port Harcourt Almasi Base, Trans-Amadi Industrial Layout Road, Port Harcourt
- Core Focus: Casing accessories, tubular products, drilling operations support.
B.G. Technical Limited
An indigenous servicing company delivering pipeline and well intervention services to upstream operators.- Location: Plot 149, Trans Amadi Industrial Layout, Port Harcourt
- Core Focus: Pipeline pigging, wireline services, facility engineering, well intervention support.
Kenth Integrated Services Limited
A wholly Nigerian-owned company providing servicing and solutions to oil and gas operators in Port Harcourt and beyond.- Location: 107, Trans Amadi Industrial Layout, Port Harcourt
- Core Focus: Oilfield support services for upstream operators.
Oilchem Group
One of Nigeria’s leading providers of drilling fluid systems, completion chemicals, and wellbore solutions.- Location: Plot 202, Trans Amadi Industrial Layout, Port Harcourt
- Core Focus: Drilling fluids, completion chemicals, production chemistry, wellbore cleanout services.
Prelude Oil & Gas Limited
An indigenous company focused on tubular maintenance, inspection services, and quality assurance.- Location: Plot 226 High Street, Off Ordinance Road, Trans Amadi Industrial Layout, Port Harcourt
- Core Focus: Tubular inspection, rental tools, non-destructive testing (NDT), asset integrity services.
Servon Nigeria Limited
A major engineering services company supporting upstream, midstream, and industrial projects.- Location: Plot 144 (Opposite Michelin), Trans Amadi Industrial Layout, Port Harcourt
- Core Focus: Engineering services, project management, EPC solutions, industrial support operations.
Substrata Oil and Gas Limited
Delivers technical consulting, compliance support, and inspection services to operators across the energy sector.- Location: 59 Professor Okujagu Street, Trans Amadi Industrial Layout, Port Harcourt
- Core Focus: Rig inspections, compliance management, tendering support, technical consulting.
Is Your Trans Amadi Workforce Compliant?
Operating a fabrication yard, logistics base, or engineering facility in Trans Amadi comes with real health, safety, and regulatory obligations.
Citron Health provides:
- On-site occupational medicals
- OEUK (formerly OGUK) medical examinations
- Fitness-to-Work assessments
- Mobile clinic deployment
- Audiometry and spirometry testing
- Drug & alcohol screening
- Emergency ambulance support
- Corporate occupational health retainers
Our mobile occupational health teams deploy directly to Trans Amadi facilities, helping companies reduce downtime and maintain HSE compliance without transporting workers across Port Harcourt.
Why Trans Amadi Remains Critical to Nigeria’s Oil & Gas Industry
- Offshore support operations
- Major pipeline corridors
- Port Harcourt’s marine logistics infrastructure
- Upstream production assets across the Niger Delta
Occupational Health & HSE Compliance in Trans Amadi
For HR managers, HSE professionals, and operations teams, workforce compliance is as important as selecting the right engineering contractor. Below are the most common occupational health requirements for oil and gas companies operating in Trans Amadi.What Medical Certifications Are Required for Oil & Gas Workers?
Personnel deploying from Trans Amadi facilities to offshore installations or remote project locations typically need a valid Fitness-to-Work certification. For offshore personnel, an Offshore Energies UK (OEUK) medical certificate remains one of the most widely recognized industry standards. These assessments determine whether a worker is medically fit for offshore environments, where emergency evacuation can be difficult. The OEUK medical typically includes:- Medical history review
- Physical examination
- Hearing assessment
- Vision screening
- Lung function testing (spirometry)
- Blood pressure evaluation
- Urinalysis
- Drug and alcohol testing where required by the employer
How Do Fabrication Yards Handle On-Site Emergencies?
Heavy industrial operations carry an inherent risk of workplace incidents. Fabrication yards routinely manage hot work, welding, confined space entry, heavy lifting, and mechanical equipment hazards — and delays in emergency response can significantly increase operational risk. High-performing industrial facilities typically maintain occupational health retainers and emergency ambulance arrangements that provide immediate access to trained medical responders when incidents occur.Where Can Companies Obtain NipeX-Compliant Occupational Health Screening?
NipeX compliance requires organizations to maintain strong health, safety, and environmental standards. Many employers now use mobile occupational health services that deploy directly to the work site, reducing the productivity losses associated with transporting workers off-site for medical assessments. Typical workplace screening services include:- Audiometry testing
- Spirometry testing
- Vision screening
- Drug & alcohol testing
- Fitness-to-Work assessments
- Pre-employment medical examinations
- Periodic employee medicals
