Welcome to Spectrum

Spectrum is an independent group founded in 2010 that consists of two business units:


Spectrum Vessel Services

Spectrum Vessel Services, based in Ramsgate, UK, are a leading provider of marine services in the UK and Northwest Europe, specialising in crew transfer and survey vessel operations. Our commitment to safety, efficiency, and professionalism sets us apart in the industry. Spectrum Vessel Services own and operate five crew transfer vessels that operate in the offshore renewable and cables sectors.

All Spectrum vessels have been purposefully modified to accommodate a survey capability that does not impact their original design to conduct safe, fast, comfortable transport and transfer of personnel and cargo to offshore assets.


Spectrum Geosurvey

Spectrum Geosurvey conduct high resolution hydrographic, geophysical and UXO surveys for offshore renewables, construction, marine aggregates and nautical charting sectors.

Based in Lymington, UK survey operations are conducted throughout the UK, Europe and North America.

"Spectrum are one of a few companies that over the years have conducted the work scope, economically, efficiently and on time with only minor client supervision."

- UK offshore wind farm construction package manager

Geosurvey Services

Our experienced team are committed to providing the highest quality marine survey solutions to our clients.


About Us

Our team has many years' experience in the offshore, renewable energy and survey sectors.


Vessel Services

Our team have a wealth of knowledge, experience and contacts in the marine industry.


Past Projects

View our current and past projects here.



We are proud of our pro-active QHSE culture.



We are looking to recruit focused and driven individuals to our diverse organisation.




AeroMAG® Unmanned Aerial Magnetometer (UAMS) system

A sneak peek of some data collected with our AeroMAG® Unmanned Aerial Magnetometer (UAMS) system over two test objects.

This residual total field example shows the results from only a single magnetometer flown at an altitude of 8 metres above ground @ 5 m/s survey speed and a 6 metre sensor spacing.

The data shows the ability for the system to detect potential UXO at considerable distances, enabling the platform to fly higher, or the water to be deeper.

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Hornsea Projects

Spectrum supported Ørsted Hornsea projects during the construction phase which are record-breaking offshore wind farms off the East Coast of the North Sea.

A new generation of offshore power stations, Hornsea is part of the future and the Spectrum team provided support on projects one and two:

Construction support hydrographic and geophysical surveys, oulder identification and clearance campaign support

These wind farms are further from the coastline than ever before, and at a scale which is a step-change in size from current offshore power stations.

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Spectrum 4

Spectrum 4 has arrived!

Spectrum 4 is our newest crew transfer/survey vessel and has:

·         BV Classification

·         23.3m LOA

·         2,900 horsepower

·         Capacity for 12 passengers and 3 crew

·         8 tonne deck cargo capacity

·         Survey capability

A big thank you to Alicat Workboats Ltd for all their support and helping Spectrum with the refit.

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