The Gardline Group

Gardline was established in 1969, to provide marine support to the offshore oil and gas industry. Today, Gardline comprises a diverse group of multi-disciplinary organisations, operating in a wide variety of business areas and locations worldwide which have grown and developed over time. Gardline's principal offices are based in Great Yarmouth, Norfolk, UK. The major business areas by volume are geophysical, geotechnical, environmental, hydrographic and oceanographic survey services. 

The success of the Gardline Group is attributable to its very loyal customer base, strong HSSE culture, dedicated management teams and the loyalty and professionalism of those who spend their working lives within Gardline.

Gardline is primarily a science and technology based group and progresses with considered enthusiasm when investing in technology and new ideas. However we are constantly aware of the possibility of unanticipated change and the consequent impact upon our activities. This careful use of technology underpins our growth; using judgement developed from experience. 

Please see below for a full list of Gardline Group Companies:

Gardline Geosurvey Limited

Gardline Geosurvey Limited is a multidisciplinary marine survey company, providing a comprehensive range of marine services including geophysical, hydrographic, geotechnical, geochemical, environmental and oceanographic surveys. 

Alpine Ocean Seismic Survey, Inc

Alpine Ocean Seismic Survey, Inc. (Alpine), founded in 1957 and a Gardline Company since 2009, provides industry and government with the technical expertise to plan, acquire and interpret scientific data from marine and freshwater environments. Company capabilities include geophysical, geotechnical, hydrographic, oceanographic, environmental and positioning services. 

Marine Planning Consultants

Marine Planning Consultants (MPC) is a leading source of expertise and advice on marine policy, planning, sustainability, licensing and impact assessment. We pride ourselves on our high quality, impartial advice and ability to offer innovate solutions to clients within the public, private and NGO sectors. MPC offer a full range of services; from policy advice, socio-economic analysis and stakeholder engagement to an end-to-end service on all aspects of marine planning, impact assessment, licensing, monitoring and enforcement.

Gardline Marine Sciences do Brasil, S.A

Gardline Marine Sciences do Brasil S.A (Gardline Marine Sciences do Brasil) are fully qualified to offer a range of international services including marine geophysical, geotechnical, environmental and oceanographic surveys to a wide range of industry sectors. 

Minerva Technical Solutions Limited

Minerva Technical Solutions Limited (MTSL) offer a comprehensive package of services to support the Oil, Gas, Nuclear, Renewables and Marine industries. Utilising their extensive worldwide experience, MTSL deliver solution focused services, aimed at reducing risks, costs and environmental impact, whilst increasing quality, efficiency and response time. MTSL has the flexibility and capability to deliver services from small, single person solutions, through to the provision of large, multi-layered projects, which utilise all facets of the Gardline Group.

Marine Ecological Surveys Limited

Marine Ecological Surveys Limited (MESL) provide authoritative scientific advice on the impacts of major industrial and construction developments in the marine environment. MESL have specialist expertise in the design and implementation of monitoring programmes, the preparation of multi-disciplinary reports, primary research and the provision of strategic advice. 

Titan Environmental Surveys Limited

Titan Environmental Surveys Limited (Titan) is a marine contractor for nearshore data acquisition. Titan provide geophysical, hydrographic, oceanographic and environmental surveys to its clients. With its own fleet of coastal and nearshore vessels and industry experience spanning more than 30 years, Titan is now one of the UK’s leading environmental survey and monitoring contractors. 


Lankelma are one of the UK’s leading cone penetration testing (CPT) companies specialising in in-situ ground investigation methods and engineering consultancy for construction projects around the world. Lankelma's experienced staff deliver quality data in a timely, safe and cost-effective manner. With their large fleet of CPT rigs and ingrained knowledge, Lankelma are able go beyond simply supplying accurate and reliable data, and provide their clients with high-value interpretation and engineering input for their projects.

Gardline Pte Ltd

Gardline Pte Ltd offer a true multi role survey vessel solution from a single mobilisation. Options that can be mobilised and utilised on a single cruise include: 2D seismic exploration acquisition, multi beam bathymetry acquisition, high resolution hull mounted sub bottom profiler data, environmental sampling acquisition, high resolution seismic acquisition and geotechnical seabed sampling. Gardline Pte Ltd offers a wide range of multidisciplinary marine site survey and 2D exploration seismic survey capabilities.

Gardline Australia Pty Ltd

Gardline Australia Pty Ltd is a Gardline Group company with its head office facility based in Perth, Western Australia. The company delivers a wide variety of specialist vessel management and associated services in the Australian and Asia Pacific region. We specialise in the provision of vessels and marine support to both government and commercial clients. Our service offerings include: Ships and crew, vessel build and supervision, marine project management and in service support. Gardline combines its experience and proficiency in these specialist services to deliver effective, efficient and safe maritime solutions. 

Gardline Surveys Inc

Gardline Surveys Inc, based in in Houston Texas, is Gardline’s project management and marketing office for clients based in North and South America, with a primary focus on clients based in Houston. In addition, Gardline Surveys Inc. undertakes data interpretation, reporting and consulting, particularly for Houston based clients operating worldwide. The geophysical team specializes in 3D geohazard assessments; identify the presence of shallow hazards utilizing existing 3D seismic data, typically in water depths over 300m. 

Dardan Security

Dardan Security is an industry leading provider of integrated security systems and services and is the only company capable of delivering a true solution comprising the spectrum of security elements in the East of England. Experience has enabled Dardan Security to understand their clients' security needs and provide the optimum and appropriate cost effective level of security solution to suit every size and type of organisation. 

Gardwell Secure Systems

Gardwell Secure Systems have over fifteen years’ experience in the electronic security systems industry, installing state-of-the-art CCTV, intruder alarms and access control systems to help protect businesses against the threats of crime. The company was originally founded in Great Yarmouth to help secure the properties and assets of companies created during the boom years of the offshore gas industry. Gardwell Secure Systems have provided quality yet cost-effective security installations for many businesses including churches, hospitals and national retailers. Their electronic security systems are effective deterrents to intruders and have in the past provided crucial video evidence during court prosecutions. 

Howards Estate Agents Limited

Founded in 1926, Howards (Estate Agents) Limited (Howards Group) has established itself as a leading Estate Agent in Norfolk and North Suffolk. Through a combination of innovative marketing strategies and a transparent communicative approach, Howards Group endeavour to sell your property at the best possible price within your desired timescales.

Tranship B.V

Tranship B.V. is a ship-management company. Their ships can be deployed in the maritime survey market to carry out pipeline surveys, cable route surveys, hydrographic work and geotechnical/geophysical inspections. Tranship B.V. is committed to offering clients a quality service and a high level of safety on board their ships. 

Alicat Workboats Limited

Alicat Workboats Limited (Alicat) are builders and repairers of aluminium boats, with designs from 14m to 30m. The company specialises in the construction of class and non-class wind farm support vessels servicing the offshore energy sector. The Great Yarmouth based company also operates arguably the UK's most comprehensive small vessels repair facility, boasting a 200 tonne mobile vessel lift and onsite services including specialist marine design and installation, fabrication, precision engineering, naval architecture, mechanical engineering, hydraulic services, joinery, painting and shipwrights. 

South Boats IOW Limited

South Boats IOW Limited (South Boats IOW) has a strong heritage of ship building and repair and has been at the forefront of offshore wind farm crew transfer vessel design and construction for many years. South Boats IOW have experience of building a large range of service vessels, including wind farm support, police and patrol and survey and research vessels. The company prides itself on industry leading build quality and attention to detail and of course delivering vessels on time and on budget.

East Coast Diesel Limited

East Coast Diesel Limited (East Coast Diesel) are diesel engine repair specialists and parts suppliers for all major brands of industrial and marine diesel engines. East Coast Diesel have over 30 years experience in the overhaul, repair, servicing and fault diagnosis of engine brands such as Detroit Diesel, Cummins, Caterpillar, Rolls Royce, Scania, Volvo, Alco, E.M.D., Doosan and many other engine types. Ideally located quayside within the Richards Dry Dock facility, East Coast Diesel offers an exceptionally high standard of service to any industry, offshore or onshore, anywhere in the world.

C A Design Services

C A Design Services, part of CADS Group have over 25 years’ experience and are one of the UK’s leading companies specialising in the creation, management and publication of design and building data. Their UK based in-house teams offer a range of services including retail space planning, 2D drawings & 3D visualisation, mapping, surveying & building consultancy supported by our team of dedicated software developers.


Photo: The original Gardline office in Whapload Road, Lowestoft in 1969.