Onstream Group is an industrial service provider founded in 1978 by two British engineers. The company describes itself as having over 40 years of global experience in the oil and gas and industrial markets. It serves major operators and contractors internationally, with a focus on delivering cost-effective and operationally efficient solutions.
The group’s core service lines include manpower and recruitment, logistics, and asset integrity. These services cover both onshore and offshore projects, including pipeline inspection and subsea construction support. Onstream states that it adheres to international quality standards and holds ISO 9001, ISO 14001, and ISO 45001 certifications, as well as verified membership with Achilles.
In Nigeria, the company operates through ASC Nigeria Ltd, which is based in Lagos. The local office provides manpower and recruitment services. The group maintains a presence in other regions, including the Netherlands, Kazakhstan, Gabon, and Mozambique.



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