Who are McDermott International, Ltd.'s core customers in the energy infrastructure market?
McDermott International, Ltd. serves major national oil companies, large international oil majors, and integrated energy firms needing complex EPCI projects. This matters because a project backlog of 28.5 billion USD in 2025 ties revenue to a few high-credit clients and long capital cycles.

Focus on clients funding multi-year offshore and LNG projects; winning repeat work from these players cuts bid-to-award lead time and reduces margin volatility. See McDermott BCG Matrix Analysis.
Who Is McDermott Trying to Win?
McDermott International, Ltd. targets large National Oil Companies (NOCs) and International Oil Companies (IOCs) that run multi-year upstream and midstream projects, plus growing business from LNG and subsea developers; the firm prefers long-term agreement partners for steadier, repeatable work.
McDermott target customers are dominated by NOCs and IOCs – notably Middle Eastern giants such as Saudi Aramco and QatarEnergy – which together account for over 55% of revenue in fiscal 2025; these clients commission large EPC packages, FPSO work, and brownfield maintenance.
Secondary targets include independent oil companies as McDermott customers, LNG project owners, and energy infrastructure developers focused on subsea and low – carbon projects; these segments drive incremental EPC and subsea installation volume.
McDermott core customers are institutional buyers – oil and gas operators and utility-scale project owners – seeking engineering, procurement, and construction (EPC) services for offshore facilities, LNG construction, and subsea systems rather than retail consumers.
The most important segment is Middle East NOCs and IOCs contracting long-term agreements (LTAs) and multi-year brownfield scopes; LTAs and repeat work underpin a more predictable revenue profile and represented the bulk of McDermott International, Ltd.'s secured backlog in 2025.
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What Do McDermott's Customers Care About Most?
McDermott core customers prioritize execution certainty, top-tier safety, and technical reliability; for projects >1.5 billion USD they demand industry-leading TRIR/LTIR and carbon-neutral EPCI options, plus transparent supply chains and demonstrable financial stability.
Project owners – Oil and gas operators, LNG project owners, and Energy infrastructure developers – need contractors who deliver schedules and specifications on mega-projects. For typical client profiles in the McDermott target market for offshore engineering projects, missing milestones by weeks can cost hundreds of millions.
Customers pick contractors based on safety metrics (top-decile TRIR/LTIR), ability to manage long-lead procurement, and firm price commitments. For McDermott target customers, transparency on long-lead items reduces contingency needs and lowers the chance of cost overruns.
In the 2025/2026 fiscal environment, LNG construction owners and petrochemical plant operators increasingly require Carbon-Neutral EPCI and CCS integration. Clients ask for low-emission construction vessels and measurable scope 1/2/3 plans as contract prerequisites.
Customers value demonstrable safety records, engineering certainty, and contractual mechanisms that limit schedule and cost exposure. For commercial buyers looking to contract McDermott for large-scale projects, a clear Earned Value baseline and mitigation plan are decisive.
Repeat demand comes from consistent on-time delivery, low incident rates, and proven CCS/low-carbon execution. National oil companies that hire McDermott and independent oil companies as McDermott customers prefer vendors with multi-project governance and transparent supply chains.
Clients in the McDermott target customers segment choose firms that combine engineering depth with project delivery systems that hit safety and schedule targets while offering carbon-neutral options. Read more on operational and revenue drivers in this company overview: How McDermott Company Works and Makes Money
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Where Is Demand Strongest for McDermott?
Demand for McDermott International, Ltd. is strongest in the Middle East and the U.S. Gulf Coast, with active offshore programs in Saudi Arabia and Qatar and onshore LNG and hydrogen work on the Gulf Coast.
The Middle East drives the McDermott target customers base via large EPCI award opportunities tied to Saudi Arabia's offshore expansion and Qatar's North Field expansion, which together represent a material share of the global EPCI tender pipeline in 2026; national oil companies and LNG project owners lead demand.
The U.S. Gulf Coast concentrates on onshore LNG export terminals and hydrogen hubs where McDermott core customers include LNG project owners and energy infrastructure developers; subsea and deepwater activity in the North Sea and Brazil shows a 12 percent year-over-year increase in demand as operators optimize brownfield assets.
McDermott International, Ltd. is strongest where modularization and integrated EPCI (engineering, procurement, construction, and installation) add value – particularly for large LNG and offshore projects – serving oil and gas operators, independent oil companies, and utility companies as repeat McDermott customer segments.
Growth in 2025 – 2026 concentrates in Qatar's North Field and Saudi offshore expansions plus subsea/deepwater brownfield work in the North Sea and Brazil; combined, these geographies underpin rising EPCI tender volume and attract commercial buyers seeking McDermott customers for subsea installation projects and FPSO work. See the company outlook for more detail: Growth Outlook of McDermott Company
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How Does McDermott Keep Its Audience Growing?
McDermott International, Ltd. grows its audience by deepening NOC contracts while expanding Energy Transition offerings, and by deploying digital twin and subsea robotics to win adjacent IOC and LNG project owners, improving retention and lifecycle value.
McDermott target customers include national oil companies, independent oil companies, LNG project owners, and energy infrastructure developers; the firm wins new clients by leveraging the Saudi Aramco LTA for recurring work and marketing digital twin and advanced subsea robotics that cut lifecycle costs by 10 – 15% over five years, attracting deepwater operators and LNG construction project owners.
Retention hinges on long-term LTAs with NOCs, proven asset utilization from large EPC contracts, and technology-led cost reduction; maintaining a book-to-bill of 1.15x in 2025/2026 supports steady backlog conversion and repeat awards from Oil and gas operators and Energy infrastructure developers.
Repeat demand comes from multi-year EPC and subsea installation programs, FPSO and offshore facilities work, and renewals under strategic LTAs; ecosystem stickiness increases as McDermott embeds digital twins into operator O&M workflows, creating switching costs for typical client profiles for McDermott EPC services.
The single biggest growth lever is the dual-track strategy: securing high-utilization NOC contracts (e.g., Saudi Aramco LTA) while delivering measurable efficiency gains via subsea robotics and digital twins – this keeps national oil companies that hire McDermott and independent oil companies as McDermott customers engaged as they balance production and decarbonization.
For background on corporate strategy and client mix see History and Background of McDermott Company
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Frequently Asked Questions
McDermott's primary customers are major National Oil Companies and International Oil Companies. The blog says these large operators, especially Middle Eastern giants such as Saudi Aramco and QatarEnergy, account for more than 55% of revenue in fiscal 2025 and commission major EPC, FPSO, and brownfield work.
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