The subsea drilling systems industry is fast-paced, technically complex and continually evolving. Companies operating in this industry are typically engaged in designing, manufacturing, and maintaining essential drilling equipment utilized in offshore exploration and production. Offering a suite of services ranging from well construction to completion, they serve both oil and gas operators. Services offered can vary from company to company but generally revolve around subsea drilling, well intervention, and subsea production. In terms of future trends, the push towards renewable energy sources and the need for greater health and safety measures are expected to drive continuous innovation within the industry.


Top 22 Subsea Drilling Systems Companies

1. Subsea7

  • Website: subsea7.com
  • Headquarters: London, England, United Kingdom
  • Founded: 1970
  • Headcount: 10001+
  • Latest funding type: Ipo
  • LinkedIn

Subsea 7 is a global leader in subsea engineering and IRM (Inspection, Repair, and Maintenance) services, specializing in the design and development of innovative intervention tooling solutions. With over 40 years of experience, our expertise and capabilities enable us to enhance production, ensure asset integrity, and provide comprehensive offshore operational expertise for the safe removal of platforms and subsea infrastructure. We offer fully-integrated solutions, engineering services, and enabling technologies to optimize the performance and lifespan of subsea infrastructure.


2. 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.


3. 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.


4. Forum Energy Technologies

  • Website: f-e-t.com
  • Headquarters: Houston, Texas, United States
  • Founded: 2005
  • Headcount: 1001-5000
  • Latest funding type: Ipo
  • LinkedIn

Forum Energy Technologies is a company that specializes in providing ROV spare parts, vehicles, submarine rescue systems, work class ROVs, and observation class ROVs. They also offer trenchers, tether management systems, and various mechanical equipment for upstream and downstream oil and gas operations. Additionally, they provide drilling instrumentation, monitoring systems, gas processing and treating solutions, and various other products and services for the oil and gas industry.


5. 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.


6. Velesto Energy Berhad

Velesto Energy Berhad is a leading player in the oil and gas industry, specializing in offshore drilling services. They offer innovative and engaging technical training programs, along with workover services, threading, repair, and inspection services. The company is committed to sustainability and upholding core values. Velesto Energy Berhad has a strong governance structure and prioritizes health and safety. They provide career opportunities for dynamic individuals seeking to excel in the energy sector.


7. Nymo - Part of the J.J Ugland Companies

  • Website: nymo.no
  • Headquarters: Grimstad, Aust-Agder, Norway
  • Founded: 1946
  • Headcount: 201-500
  • LinkedIn

NYMO is a company based in Norway that specializes in engineering and drilling packages, process modules, gas turbine systems, subsea structures, rig completion and upgrade, drilling and mud modules. They offer reliable and efficient EPCI services, catering to various industries.


8. The Subsea Company

The Subsea Company designs and manufactures equipment for marine drilling risers including risers, riser clamps, thrust collars, mux clamps, storage racks and buoyancy design application.


9. Dril-Quip

  • Website: dril-quip.com
  • Headquarters: Houston, Texas, United States
  • Founded: 1981
  • Headcount: 1001-5000
  • Latest funding type: Ipo
  • LinkedIn

Dril-Quip is a company that specializes in providing a wide range of products and equipment for the drilling and production of oil and gas. They offer specialty casing connectors, mudline suspension equipment, downhole tools, surface equipment, subsea equipment, control systems, and dry tree systems. Their innovative solutions and reliable field performance contribute to measurable time and cost savings, as well as the mitigation of installation risks.


10. Aquaterra Energy

  • Website: aquaterraenergy.com
  • Headquarters: Norwich, Norfolk, United Kingdom
  • Founded: 2005
  • Headcount: 51-200
  • Latest funding type: Private Equity
  • LinkedIn

Aquaterra Energy is an offshore engineering company that specializes in providing equipment, tools, and services for the oil and gas industry. They offer solutions for well construction, platform and riser systems, field development, decommissioning, and carbon capture and storage. Their expertise in engineering excellence helps them support the energy transition and improve offshore operations.


11. Pag Oilfield Engineering CO.,LIMITED

PAG OilfieldI Engineering Co., Ltd was founded in October 2008. Incipiently the company was named “United Marine”, and two years later, officially changed the name to “PAG Oilfield Engineering Co., Ltd“ (short name “PAG”), was engaged in Marine Engineering equipment sales and services. In 2014, PAG began entering into the Market of Deep Water. PAG provides Technical Support, Design, Project Management, Tools Development, Equipment Leasing, Consulting and Services, etc. for Deep Sea Research, Oil and Gas Exploration, Seabed Mineral Exploration, Combustible Ice Test Producing and other fields. The company had also cooperated with Enhance Drilling (Norway), introduced the technology of Managed Pressure Drilling and Suction Anchor. In 2016, PAG had built a Branch Office in Egypt, established Maintenance Center and Spare Parts Supply Center there. Egypt Branch mainly provide Maintenance, Heavy Equipment Rental, Product Sales and Spare Parts Supply for Land Oil/Gas Market of Middle East and North Africa.


12. Allrig

  • Website: allriggroup.com
  • Headquarters: Houston, Texas, United States
  • Founded: 2015
  • Headcount: 201-500
  • Latest funding type: Acquired
  • LinkedIn

Allrig Group is a global company in the energy industry that offers a wide range of services and solutions for rig owners. Their services include jacking systems, drilling equipment, rope access services, inspection and testing, and fleet support. With a refreshing "can-do" attitude and hands-on personal approach, Allrig Group aims to deliver genuine bottom-line efficiency and cost savings to their customers.


13. SMST Designers & Constructors

SMST Designers & Constructors BV is an internationally oriented company based in the Netherlands that designs and builds offshore equipment. They offer innovative solutions for offshore access, including gangways, access and cargo towers, and telescopic access bridges. Their products cover a wide range of systems for access, lifting, drilling, pipelaying, and specials. With their in-house design and engineering expertise, production facilities, and worldwide installation and service, SMST delivers complete, turnkey systems built to customer's specifications.


14. ABCO Subsea.

ABCO Subsea is a leading provider of BOP hydraulic shuttle valves and other hydraulic products to the offshore industry. With over 40 years of experience, the company offers a range of engineered solutions for offshore energy, including drilling systems, production systems, and umbilical management systems. ABCO Subsea's products are trusted by energy companies and engineering firms worldwide.


15. Gce Node

  • Website: gcenode.no
  • Headquarters: Kristiansand S, Kristiansand, Norway
  • Founded: 2004
  • Headcount: 11-50
  • LinkedIn

GCE NODE is an industry-driven cluster for ocean technologies located in Kristiansand. They focus on developing autonomous operation and condition monitoring of topside drilling systems in the offshore industry. They provide funding instruments, conferences, projects, news, and training through their academy. They aim to increase competitiveness and facilitate the transition to new market segments.


16. Electrical SubSea & Drilling

Electrical Subsea & Drilling AS delivers innovative solutions and technology for the land, subsea and offshore industry.


17. Environmental Management Authority

  • Website: ema.co.tt
  • Headquarters: Port Of Spain, City Of Port Of Spain, Trinidad and Tobago
  • Founded: 1995
  • Headcount: 51-200
  • LinkedIn

ARCO Trinidad Exploration and Production Limited is an oil and gas company based in Trinidad. They specialize in exploration and production of oil and natural gas resources. The company offers services such as drilling operations, establishment of facilities for production, and modification and expansion of existing facilities. Their customer base includes energy companies, offshore drilling contractors, and oil and gas exploration firms. They operate both onshore and offshore, and may outsource certain activities such as site surveying. The company operates in the oil and gas industry and serves customers in the energy sector.


18. Island Drilling Company AS

Island Drilling Company is a fully equipped semi-submersible drilling unit designed for North Sea operations. They provide drilling services to oil and gas companies, with a focus on efficiency and adaptability. With their competent and experienced employees, they are able to take on new challenges and deliver high-quality results.


19. Seaowl Group

  • Website: seaowlgroup.com
  • Headquarters: Levallois Perret, Ile-De-France, France
  • Founded: 1999
  • Headcount: 1001-5000
  • Latest funding type: Private Equity
  • LinkedIn

Seaowl Group is a marine and energy services company that provides customized solutions to clients in the marine and energy markets. They offer a wide range of services including commissioning, operation and maintenance, navy training, maritime surveillance, asset protection, and depollution and salvage.


20. Swift Drilling B.V.

Swift Drilling is an innovative drilling contractor that offers high value drilling solutions. With over 10 years of experience worldwide, we have built long-standing relationships with well-known operators in the Oil and Gas industry. Our self-elevating mobile offshore drilling unit is versatile and suitable for a wide range of drilling and plug & abandonment projects. We strive to be the partner of choice, providing services that exceed customer expectations.


21. Hole Group

The HOLE Group provides professional support, placement, project management, and logistical services for the oil and gas industry. With over 1000 years of combined oilfield knowledge and expertise, they offer engineering solutions and quick problem-solving for drilling and completion operations.


22. innovoil

  • Website: innovoil.co.uk
  • Headquarters: Singapore, Central Singapore, Singapore
  • Founded: 2008
  • Headcount: 11-50
  • LinkedIn

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