Subseaquence provides specialized engineering and maintenance services to the offshore drilling industry, with core expertise in well control, and electrical and mechanical support—particularly for subsea equipment such as Blowout Preventers (BOPs).

Our offerings include project management, in-between well maintenance (IBWM), subsea inspections, commissioning, and Special Periodic Surveys (SPS), conducted on a five-year cycle.

Since our founding in 2013, Subseaquence has earned a strong reputation for excellence, supporting leading drilling contractors with critical well control and maintenance services. Our experience spans platforms, jack-ups, semi-submersibles, and drillships. Headquartered in London, we are committed to delivering high-quality work with a focus on safety and technical expertise.

OFFSHORE ASSETS

Through early engagement, our multi-disciplinary teams can deliver the right solutions for customers who want quality workmanship at an optimised cost. We provide various approaches for all assets, including UDW rigs, such as drillships, semi-submersibles, and surface equipment for platforms and jack-ups. Our engineering services and enabling technologies protect the integrity and optimise the performance of your well control equipment.

PEOPLE ARE OUR BUSINESS

Offering a team of 80 industry-renowned contractors, we have completed over 1000 projects over the past eleven years. Our dedicated team performs to the highest legislative API 53 standards, covering a wide range of international projects. Our customers include 15 of the world’s leading multinational drilling contractors and operators. In one of today’s most safety-critical industries, we have a 100% safety record with over 700,000 completed man-hours and a perfect Total Recorded Incident Rate (TRIR) of 0.00.

GLOBAL COVERAGE

We provide a full range of logistic services support to our customers. With over 800 completed projects, we have the experience, resources and travel coordination to assist with requirements in often high-risk and complex international locations. Together with our partners, we can ensure that our customers are fully supported and informed about crew travel, visas and any challenging unique regional legislation.