Subsea100 Global Limited Navigating the seas

Knowing the
sea beneath
your project.

We map what's underwater so the people building above it can plan, build and maintain with confidence. Hydrographic surveys, underwater inspection and subsea engineering — delivered by experienced hydrographers, geologists, geophysicists and engineers.

View capabilities → Recent work →
ROV inspection operations
Multibeam survey
3D laser scan model
USBL transducer install
Underwater structural inspection
PSL DOVE barge positioning services
Navigation equipment setup
Subsea inspection · ROV Inspection-class ROV
01 / 07
2012
Established
50+
Projects delivered
4,000m
ROV working depth
§ 01 / What we do

Clear answers
about what's
underwater.

We provide marine geophysical surveys and subsea solutions — the data and systems offshore energy, renewables and infrastructure projects rely on to make confident decisions.

01 / Hydrographic surveys

Mapping the seabed in detail

Accurate underwater maps for ports, pipelines, cable routes and coastal projects — so engineers know exactly what's down there before work begins.

Hydrographic survey
Hydrographic surveys
02 / Seismic surveys

Reading the layers below

Sound-based imaging that shows what the seabed is made of — essential before drilling, foundation work or major construction.

Seismic surveys
03 / Subsea inspection

Eyes on underwater assets

Our inspection-class ROVs go up to 4,000 m deep, capturing HD/4K video and millimetre-accurate 3D models of pipelines, platforms and infrastructure.

Inspection ROV
04 / Geotechnical

Knowing the ground before you build

Soil and seabed sampling that tells you whether the ground can hold what you plan to put on it — for foundations, anchors and cables.

Geotechnical
05 / Data analysis & engineering

Turning measurements into decisions

We process and analyse survey data, then deliver clean reports, 3D models and recommendations your team can act on — not raw files you still have to interpret.

3D modelling
Audited & certified —
independently verified.
9001
ISO 9001:2015
45001
ISO 45001:2018
SURCON
Surveyors Council NG
NIMASA
Maritime Authority NG

Our underwater
mission.

§ 02 / Who we are

Subsea100 Global Limited is a Survey and Construction Support Company incorporated in January 2012, registered as an indigenous company in Nigeria with a global presence in Houston, Texas, USA. We are at the forefront of hydrographic survey, underwater mapping and subsea engineering, delivering high-precision data and innovative solutions for offshore industries and coastal infrastructure projects.

Our team of experienced hydrographers, geologists, geophysicists and engineers commits to high standards in quality, health, safety and the environment — working closely with clients to understand the parameters and objectives of each project, while bringing international experience in inspection, repair, maintenance and decommissioning.

Subsea100 — Navigating the seas.

20+
Years of experience
Industry experience across offshore energy, renewables and infrastructure.
50+
Projects delivered
A track record across oil & gas, renewable energy and marine infrastructure.
4,000m
Maximum ROV depth
Inspection-class ROVs with Voyis stereo photogrammetry and HD/4K imaging.
ISO
Certified standards
ISO 9001:2015, ISO 45001:2018, SURCON and NIMASA certified.
PSL DOVE barge positioning services
Recent project Chevron Nigeria Limited
PROJECT
PSL DOVE
SCOPE
DGPS · Positioning · Navigation
Recent project

PSL DOVE — DGPS positioning and navigation services.

Positioning services to the barge "PSL DOVE" and its associated Anchor Handling Vessels for Chevron Nigeria Limited (CNL), providing DGPS positioning and navigation coverage of the lay barge's anchor pattern and accurate positioning during pipeline, spool and mattress installation.

All working drawings and coordinates were provided by CNL, and the project was delivered in line with CNL's approved Health, Safety and Environment plan.

ClientChevron Nigeria Limited
PositioningDGPS & navigation
ScopeAnchor pattern coverage
HSECNL-approved plan
See the project →
§ 03 / Approach

How a campaign
actually runs.

Every Subsea100 program follows the same four-phase rhythm — calibrated to the asset, the season and the dataset that has to leave the field.

01
Technical Excellence

Advanced technology

We deliver superior results through advanced technology and methods — a commitment to precision, innovation and quality that exceeds expectations on every project.

02
Expert Team

People with experience

Our success is built on our people. We invest in continuous training and a collaborative environment that attracts and keeps the industry's top talent.

03
Operational Excellence

Safety and efficiency

Rigorous planning, risk management and quality control. We hold ourselves to the highest standards while completing projects on time.

04
On Record

Clear deliverables

You receive clean reports, 3D models and validated data — not raw files you still have to interpret. The information leaves us ready to act on.

§ 04 / Who we work with

Industries we support.

Oil & gas — pipeline inspections and offshore platform support. Renewable energy — offshore wind farm surveys and cable routing. Marine construction — seabed mapping and structural assessments. Environmental — habitat monitoring and impact assessments.

Industries served →
§ 05 / Working with us

Talk to a real specialist.

Whether you're planning a subsea project, need expert advice or want to know how our ROV fleet can support your operations — reach out and you'll speak to someone who actually does the work.

Get in touch →
Let's connect

Unlock
expert
insights.

Planning a subsea project, need expert consultation, or want to know how our ROV fleet can support your operations? Reach out — our team is here to help.

info@subsea100.com → +234 706 177 0589 →