The offshore drilling rig installation industry is largely comprised of specialized companies that cater to the global energy sector. They play a pivotal role in the extraction of oil and natural gas reserves from beneath the seabed, deploying rigs that can operate in both shallow and deepwater environments. With advancements in technology, their capabilities often extend to functioning within harsh and challenging conditions. As global energy demand remains high, these companies continue to be at the forefront of exploration and production activities. The industry is progressively focusing on safety, efficiency, environmental sustainability, and the reduction of carbon footprints in their operations.


Top 25 Offshore Drilling Rig Installation Companies

1. Seadrill

  • Website: seadrill.com
  • Headquarters: London, England, United Kingdom
  • Founded: 1972
  • Headcount: 5001-10000
  • Latest funding type: Ipo
  • LinkedIn

Seadrill is an offshore drilling company focused on building a safer, stronger, and smarter future for the industry. They offer a young, smart, and strong fleet to meet the needs of operators in both shallow and ultra-deep water environments. Their goal is to maximize value for investors.


2. Diamond Offshore

  • Website: diamondoffshore.com
  • Headquarters: Houston, Texas, United States
  • Founded: 1989
  • Headcount: 1001-5000
  • Latest funding type: Ipo
  • LinkedIn

Diamond Offshore Drilling, Inc. is an offshore drilling company that provides drilling services for the oil and gas industry. With a diverse fleet of rigs and advanced technology, the company offers safe and efficient drilling operations in ultra-deepwater and harsh environments. Diamond Offshore aims to unlock energy resources responsibly, prioritizing safety and environmental sustainability.


3. Valaris Limited

  • Website: valaris.com
  • Headquarters: Houston, Texas, United States
  • Founded: 1975
  • Headcount: 5001-10000
  • Latest funding type: Ipo
  • LinkedIn

Valaris is a global organization specializing in offshore drilling operations. With a focus on safety and quality, they provide responsible solutions to deliver energy worldwide. Their diverse rig fleet, including ultra-deepwater drillships and versatile semisubmersibles, allows them to meet a wide range of customer well program requirements. Valaris is known for their technologically advanced rigs and well-trained crews. They offer exciting opportunities for their employees to succeed and foster a culture of collaboration and teamwork.


4. Transocean

  • Website: deepwater.com
  • Headquarters: Zug, Zug, Switzerland
  • Founded: 1953
  • Headcount: 1001-5000
  • Latest funding type: Post Ipo Debt
  • LinkedIn

Transocean Ltd. is a global offshore drilling contractor. They provide ultra-deepwater and harsh-environment floaters for drilling operations worldwide. With a focus on efficiency, safety, and environmental sustainability, Transocean delivers reliable and high-quality drilling services. Their fleet includes various rig types and newbuilds, ensuring they can meet the demands of any job. They prioritize the protection of people, the environment, and equipment throughout their operations.


5. Gulf Drilling International

  • Website: gdi.com.qa
  • Headquarters: Doha, Baladiyat Ad Dawhah, Qatar
  • Founded: 2004
  • Headcount: 1001-5000
  • LinkedIn

Gulf Drilling International (GDI) is the first onshore and offshore oil and gas drilling company in Qatar. Established in 2004 as a joint venture between Qatar Petroleum and Japan Drilling Co., GDI offers drilling services to the oil and gas industry. With a focus on efficiency and safety, GDI operates a fleet of offshore and onshore drilling units, offering a range of support services. Committed to excellence, GDI aims to provide world-class drilling services and maintain a safe workplace for its employees.


6. Vantage Drilling

  • Website: vantagedrilling.com
  • Headquarters: Dubai, United Arab Emirates, United States
  • Founded: 2007
  • Headcount: 501-1000
  • Latest funding type: Ipo
  • LinkedIn

Vantage Drilling International is an offshore drilling contractor that operates and manages a fleet of modern, high specification drilling rigs on a worldwide basis. The company is committed to conducting activities in a way that protects the health and safety of personnel, the environment, and the trust of clients.


7. GSP Holding SA

GSP Holding is an offshore drilling services company that offers drilling operations for oil and gas producers. They specialize in drilling services for gas fields, particularly in the SASB gas field offshore Turkey. With a fleet of vessels, including AHTS and jack-up rigs, GSP Holding provides construction and crew vessels as well as crane barges for their operations.


8. Global Petro Tech

GPT is a global offshore drilling company that offers services and expertise in the oil and gas industry. They provide drilling rigs, technical support, and specialized solutions to operators and rig owners worldwide.


9. Ocean Oilfield

Ocean Oilfield Drilling specializes in the supply, management, and operation of offshore and onshore drilling rigs, advanced hydraulic workovers, and a fleet of support vessels. They offer well intervention services utilizing their own equipment and crew, providing a single point of contact for all related requirements.


10. TSC Offshore Group

TSC Offshore is a company that provides high-end equipment and solutions for onshore and offshore rigs in the drilling industries. They aim to maximize performance, safety, and reliability in drilling operations.


11. Northern Offshore Ltd

Northern Offshore is a company that provides rigs and crews to meet the needs of its customers quickly and flexibly. With a commitment to collaboration, innovation, and safety, they understand and address the challenges faced by their customers. They specialize in jackup rigs and offer services related to rig design, QHSE training, and fleet management.


12. Caspian Drilling Company Ltd.

Caspian Drilling Company is a leading drilling contractor providing high-quality drilling services to the oil and gas industry. We offer a wide range of drilling services, including exploration drilling, directional drilling, and well completion. Our advanced drilling equipment and experienced team ensure efficient and safe operations for our clients.


13. Sevan Drilling ASA

Sevan Drilling Limited is a company that offers drilling services to the oil and gas industry. They specialize in providing offshore drilling rigs and associated services to their clients worldwide.


14. Bintang Subsea

Bintang Subsea is a company specializing in offshore construction support and survey services for the oil and gas industry. They offer a wide range of services including subsea pipeline and umbilical installation, drilling rig positioning, and platform and subsea structure installation. With a strong and experienced management team, Bintang Subsea is committed to providing reliable and cost-effective solutions for their customers.


15. Polar Rig Specialties Inc.

  • Website: polarrig.com
  • Headquarters: New Caney, Texas, United States
  • Founded: 2000
  • Headcount: 11-50
  • LinkedIn

Polar Rig Specialties, Inc. is a successful drilling rig derrick erection company that provides manufacturing, repair, and maintenance services for offshore and land drilling contractors worldwide. Since 1996, Polar Rig has established itself as a force in the industry, prioritizing safety in all its operations.


16. Enerpro Group

Enerpro Group is a global company offering multi-discipline services to the Oil & Gas, Marine, Renewable Energy, and Nuclear sectors. They provide turnkey project services, specializing in drilling rig upgrades and installation contracts. They offer a complete repair and upgrade service to the renewable energy industry. Enerpro is certified to ISO 9001-14001 and is a member of the NDA Supply Chain Charter.


17. DrillTec GUT GmbH

  • Website: drilltec.de
  • Headquarters: Deggendorf, Bayern, Germany
  • Founded: 2000
  • Headcount: 11-50
  • LinkedIn

DrillTec GUT GmbH Großbohr- und Umwelttechnik is a leading drilling contractor for the oil, gas, and geothermal industry. They specialize in deep drilling, horizontal drilling, and challenging HDD projects. Their services include exploration of hydrocarbons and geothermal resources, repair and redevelopment of wells, and trenchless pipeline installation.


18. Gregg Drilling, LLC

Gregg Drilling is a company that offers a wide range of drilling and testing solutions for environmental, geotechnical, and marine purposes. With a diverse range of equipment and capabilities, they provide innovative solutions and sound technical advice to tackle diverse soil conditions and terrain.


19. DAK Drilling and Well Service

Dak Drilling is a specialized drilling company offering a wide range of onshore and offshore drilling services to the oil and gas industry.


20. Bassoe Offshore

  • Website: bassoe.no
  • Headquarters: Oslo, Oslo, Norway
  • Founded: 1978
  • Headcount: 11-50
  • LinkedIn

Bassoe is a leading service provider for offshore oil and gas industry offering a range of services including rig brokerage, advisory, project development, and market intelligence. They also provide market intelligence, rig valuation, transportation and consulting services to E&P companies, shipyards, financial institutions, and asset owners.


21. Horizon Geosciences

Horizon Geosciences is a company that offers geotechnical investigation, construction support, and foundation engineering services for offshore assets. They provide comprehensive survey and geotechnical services to the marine industry, supporting every stage of the development of marine facilities. With a network of offices worldwide, they offer a wide range of services.


22. ICON Engineering Pty Ltd

ICON Engineering is an oil and gas engineering company based in Western Australia. They specialize in providing practical solutions and innovative engineering services for offshore projects, including drilling rigs, subsea installations, and lifting equipment.


23. Kim Heng Ltd

  • Website: kimheng.com.sg
  • Headquarters: Singapore, Singapore, Singapore
  • Founded: 1968
  • Headcount: 201-500
  • Latest funding type: Ipo
  • LinkedIn

Kim Heng Ltd is a company specialized in expediting the procurement and transportation of equipment and spares from shore to offshore rigs and vessels at remote locations.


24. William Jacob Management, Inc.

William Jacob Management is an independently owned full life cycle Design and Project Management service provider in the oil and gas industry. They offer critical capabilities, disciplined expertise, and technical support for onshore and offshore facilities, including drilling rigs. With a multi-national workforce and years of executive experience, they ensure success for high-stakes capital projects.


25. AKOFS Offshore

AKOFS Offshore is a company that provides subsea equipment support vessel services in the Well Intervention and P&A industry. They offer vessel contract services to clients, focusing on subsea services for Petrobras in Brazil. AKOFS Offshore is known for their collaboration and success stories in the industry.


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