Oil & Gas
Upstream, drilling and subsea equipment design, manufacture, inspection, repair and recertification to API specifications.
Subseazen Engineering Services Ltd delivers engineering design, manufacturing, inspection, repair, calibration and safety-equipment support across oilfield, drilling, subsea, marine, nuclear and industrial operations — from a single datasheet to a full project scope.
Concept, detail & API product design
Fabrication, machining & skids
NDT, OCTG & lifting inspection
Equipment manufacture & supply
A trusted one-stop-shop technical partner.
Since 2017, Subseazen has been the trusted technical partner for the oil & gas, marine, nuclear, chemical, shipbuilding and EPC industries — covering engineering design, manufacturing, inspection, maintenance and compliance across oilfield, drilling, subsea, marine, nuclear and industrial assets.
150+ clients in 20+ countries — multinationals and specialists across India, Asia, the Middle East, the UK and the USA. Cost-effective. Timely. Reliable. Every time.
We work to the codes and documentation standards each sector demands — including nuclear, where traceability and qualification requirements are absolute.
Upstream, drilling and subsea equipment design, manufacture, inspection, repair and recertification to API specifications.
Vessel concept design, stability, scantling, sea-fastening, load-out and offshore installation engineering.
Engineering, inspection, calibration and supply support for nuclear projects, delivered under quality arrangements aligned to ISO 19443 principles.
Valve overhaul and testing, rotating-equipment repair, pressure-vessel fabrication and shutdown support.
Structural and mechanical design, skid fabrication, third-party inspection and site safety-equipment supply.
Lined and corrosive-service valves, process piping, calibration and PAT testing across plant assets.
A single technical partner across the asset lifecycle — from concept design through fabrication, inspection, maintenance and certification.
Multi-discipline design for marine, offshore, subsea, structural and oilfield equipment — from concept through fabrication support.
Turnkey fabrication of skids, pressure equipment, structural steel, subsea components and process piping.
Overhaul, repair and recertification of wellhead, BOP, valves, pumps, compressors and rotating equipment.
NDT, third-party inspection, rig audit, OCTG, BHA and lifting equipment inspection to API and client standards.
API Q1/Q2, Monogram licensing, ISO management systems, gap analysis and end-to-end certification support.
Certified materials, flow-iron products, safety equipment and skilled short/long-term manpower on demand.
A complete range of fire-protection products — portable, mobile and automatic extinguishers, hose reels, fire blankets, flame-resistant coveralls, brackets, signage and servicing accessories — certified to AS/NZS and EN standards.