Design, construction, maintenance, and operation of pipeline networks. Assessing the performance of pipes subject to extreme conditions. Perform failure investigations.

Rental services for compressed air and on site nitrogen generation equipment for oil field and pipeline dewatering, drying, cleaning and testing. Based in the United Kingdom, offering global services.

Manufacturer of concrete river weights, concrete pipeline coatings and steel repair sleeves for all pipelines. Consultancy for pipeline bouyancy calculations. Offers on-site custom concrete coating services. Based in Tulsa, Oklahoma, USA.

Engineering and manufacturing of unique products for pipeline leak location and sealing of leaks from inside the pipeline. Also offers consultancy on pipeline integrity management and related services. Based in Aberdeen, Scotland.

Cardinal Gas Services provides natural gas processing, treating, and production services downstream of the wellhead to producers and pipeline companies. Headquarters in Texas, USA.

Provides cleaning pigs, intelligent geometry pigs and ultrasonic wall thickness inspection pigs and related services. Provides comprehensive pipeline survey reports of each inspection. Also manufactures ultrasonic material test equipment. Headquarters in Warsaw, Poland.

Provides pipeline repair, well surveillance and corrosion protection services for on shore and offshore installations. Based in Sarawak, Malaysia.

Manufacturing, installation training, and field installation of fiberglass composite pipeline repair sleeves. These sleeves are approved as permanent repairs for both liquid and gas pipelines in the USA. International services from a home base in Houston, Texas, USA.

Provides field management and project estimating for pipeline construction and maintenance projects. Also provides right-of-way and permitting services. Based in Tulsa, Oklahoma, USA.

Custom and field pipeline coating and project management services for onshore and offshore pipelines. Also offers pipeline maintenance services. Worldwide offices.

Offers internal cleaning and internal epoxy coating services for all pipelines. Custom services include cleaning, drying and preparation for pipeline abandonment. Based in Mansfield, Texas, USA.

Pipeline integrity management, regulatory compliance and site remediation services for pipeline operators. Based in Houston, Texas, USA.

General contractor for small and large diameter pipelines. Operating primarily in Canada.

Company holds patents and markets technology relating to the Buoyant Drum Lay System, which involves a flexible pipe, buoyant reel ship for installing marine pipelines. Licenses technology to third parties and provides support services for the construction, installation and operation of the Buoyant Drum Lay System in support vessels. Based in London, UK.

Cleaning, testing and comissioning piping and its control systems. Also maintenance and refurbishment of hydraulic systems.

Provides a diverse range of pipeline maintenance, inspection and specialist services to the gas, oil, petrochemical and water industries. Headquartered in Chesterfield, UK.

Provides worldwide hydro-mechanical pipe cleaning services and custom cleaning tool fabrication. Can handle difficult pipeline cleaning or restoration projects. Based in Switzerland.

Specializes in technology-based exploration and production products and services for pipeline, petrochemical and industrial markets worldwide. Manufacturing and service facilities globally.

Natural gas pipeline contractor offering a broad variety of construction and maintenance services. Headquartered in Bemidji, Minnesota, USA.

International manufacturer and services provider for hot tap and hot tapping as well as other pipeline maintenance equipment and services.

International provider of pipeline instrumented pig inspection and data management tools and services for all pipelines. Offers instrumented geometry, metal loss and crack detection tools. Based in Houston, Texas, USA.