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Semco Maritime

Design, Fabrication and Servicing of Turnkey Offshore Equipments

Dedicated to the energy sector, Semco Maritime is an international contracting and engineering company.

Stenhuggervej 12-14,
PO Box 3029,
DK-6710 Esbjerg V,
Fax Number

Dedicated to the energy sector, Semco Maritime is an international contracting and engineering company.

For more than 30 years, we have been facilitating design, fabrication, service and maintenance of our clients’ assets, providing comprehensive project management across all phases of energy projects.

From turnkey engineering solutions to operation support and delivery of components, systems and solutions, we make sure our clients and partners in the energy sector experience safe, cost-efficient operations.

Semco Maritime is an international company with branches in Denmark, Norway, the UK, the UAE, Singapore, Vietnam, Australia, Central America and the US.

Semco Maritime is one of the major companies that services the offshore sector in the North Sea and other international markets.
Semco Maritime delivers offshore cables to all major Danish offshore fields and has considerably expanded its international activities in recent years.
Semco Maritime provides truly integrated communication solutions for the offshore industry. Our flexible system concept offers a wide range of subsystems such as Satellite, Radio and Fibre based Transmission Systems, Mobile Radio and Navigation Systems and many more.
Semco Maritime is capable of solving almost every project requirement within the field of fire and gas. This is mainly due to extensive experience and the company's own production and supply of a wide range of special equipment.
Semco Maritime are highly experienced in production and prefabrication of construction and piping spools.

Project execution – EPCI

Semco Maritime offers full turnkey project management services.

Our large team of project managers, project control specialists, engineers and technicians manages multi-disciplinary projects across their entire lifecycle.

We are ISO 9001 certified, and our stringent quality assurance means that all Semco Maritime processes meet our clients’ needs and comply with international safety and environmental standards and regulations.

We work together to ensure that your project runs safely and efficiently.

Find out how we can help your business realise the full commercial and technical potential of its assets with EPCI:

  • Engineering and design services
  • Procurement services
  • Construction and fabrication facilities
  • Installation and commissioning

Engineering and design services

Our multi-disciplined engineering teams encompass process, mechanical and electrical systems, structures, piping, instrumentation, controls and documentation.

Procurement services

Regardless of project size or location, Semco Maritime can supply what you need.

Our procurement specialists apply their knowledge of the industry to source the best products and services with one goal in mind: to meet the client’s precise technical and budget specifications.

Construction services

From modification and repair to new-building, we are involved in every stage of the construction of modules, rigs and platforms around the world, both onshore and offshore.

We design, purchase, fabricate and test a wide range of modules, skids, steel structures and piping for final delivery, offshore commissioning and start-up.

Thanks to our in-house engineering and fabrication capabilities, cooperation between engineers and production personnel is seamless.

With all this expertise under one roof, we are able to provide an increased degree of flexibility, swiftly moving resources where they’re needed most. With so much focus on effective teamwork, we maintain a low margin of error and high rate of production

Rig upgrades and refurbishments

We have extensive experience with rig upgrades and refurbishments, from accommodation modules to cranes and complete shale shaker modules.

We minimise downtime, prefabricating the key elements at our yard before your rig arrives.

Our shipyard-in-a-box concept provides full mobility and flexibility during rig-upgrade operations, anywhere in the world.

By managing the entire yard stay and utilising the yard as a nominated subcontractor, we limit your lost revenue by ensuring that your MODU is back in operation in a fast and efficient manner.Installation servicesSemco Maritime is used to running fast installation projects for electrical systems, structure and piping. We can complete installations while keeping your platform operational 24/7.

Mobile service provision

Our highly skilled, mobile workforce uses the latest technology to set the industry benchmark for high-quality service anywhere that they are needed. Clients all over the world can benefit from our expertise and equipment either on their own premises or at ours.

Operation support

Renowned for our safety record, well-qualified staff and professional approach, Semco Maritime’s operational support lets you focus on your operations, while we keep your offshore or onshore facility and staff in good shape.

Everyone in our manpower and operation support division has passed comprehensive safety courses, and has first-hand experience working in the oil and gas industry.

Offshore products and technology

We have been supplying the international offshore and energy sectors with an extensive range of standard and explosion-proof components, systems and solutions for more than 30 years. We work closely with trusted manufacturers and suppliers and can tailor our products to meet your needs.

We deliver of our systems and services all over the world, including:

  • Telecommunication systems
  • Firefighting systems
  • Nitrogen generation
  • Wellhead control systems
  • Chemical injection systems
  • Produced water systems
  • Component sales – equipment and cables

The Semco Maritime difference

We go the extra mile to make sure our customers get the right solution at the right price. That means we listen to your needs. And we respond fast.

Our experienced, well-qualified teams have the processes, equipment and attitude essential to running projects on schedule and on budget – anywhere in the world.

Projects, Solutions and Competences: the Energy Sector

Dedicated to the global energy sector, Semco Maritime is an international project engineering company. We facilitate the design, fabrication, service and maintenance of our customers' assets, providing comprehensive project management across all phases of energy projects.

Girassol FPSO, Luanda, Angola

Girassol is one of the four major production hubs of Block 17, which is operated by Total and its consortium partners.

Culzean Gas Condensate Field, North Sea

Culzean is a high-pressure / high-temperature (HP/HT) gas condensate field located in Block 22/25a (License P111) of the UK continental shelf (UKCS), approximately 233.35km east of Aberdeen, in 90m of water.

Bayu-Undan, Timor Sea

Bayu-Undan is located 500km offshore Darwin, Australia, in the Timor Sea, and is 250km south of East Timor.

Kashagan Offshore Oil Field

Discovered in July 2000, Kashagan was described as the largest field found in the past 30 years, the largest outside of the Middle East, with a projected output close to that of the Ghawar field in Saudi Arabia.

Ekofisk II

The original Ekofisk area development consisted of eight oil and gas fields, namely Cod, Ekofisk, West Ekofisk, Tor, Albuskjell, Eldfisk, Edda and Embla.

Serrano and Oregano

Serrano and Oregano are Shell's 14th and 15th deepwater projects in the Gulf of Mexico respectively.

Jade Oil and Gas Platform

The high-pressure / high-temperature Jade field is located in block 30 / 2c of the UK North Sea, 17.7km north of the Judy project.


Glitne lies in block 15/5 and 15/6 in the Sleipner area of the Norwegian sector of the North Sea about 40km north-west of the Sleipner East development.

Hickory Oil & Gas Field, Gulf of Mexico, USA

The Hickory field is operated by Anadarko, which owns a 50% working interest in the Grand Isle blocks 110, 111 and 116, along with partners Shell (37.5%) and Ocean Energy (12.5%).

TotalFinaElf Gas Field Project

The Northern Underwater Gas Gathering Export and Treatment System (Nuggets) is located in blocks 3 / 18c, 3 / 19a, 3 / 19b, 3 / 20a, 3124a, 3 / 24c and 3125a in the UK sector of the northern North Sea, south of Dunbar in water depths of 120m.

Marlim Oil Field

Marlim is located in the north-eastern part of Campos Basin roughly 110km offshore Rio de Janeiro, in water depths ranging from 650m to 1,050m.

PROCAP 2000 Oil Field Project, Campos Basin

Petrobras originally set up the PROCAP 2000 project in order to enable the company to produce oil and gas from offshore fields situated in ultra deep waters (of 1,000m-3,000m), with the aim of incorporating the reserves located at these water depths.

Petro-Canada oilfield project

The Terra Nova field is located 350km east-south-east (ESE) of St John's Newfoundland and 35km south-east of Hibernia.

Cantarell Oilfield, Gulf of Mexico

The Cantarell field is Pemex Exploración y Producción's heavy oilfield, located 100km off the coast of the Yucatan Peninsula in the Gulf of Mexico.

Jotun Oil and Gas Field Project

The Jotun field is located on the Utsira High, between the Balder and Heimdal fields, approximately 200km west of Stavanger, Norway.

Neptune Field, Gulf of Mexico

The Neptune Field is located in the Gulf of Mexico in Atwater blocks 573, 574, 575, 617, and 618, approximately 120 miles from the coast of Louisiana in water depths ranging from 4,200ft to 6,500ft.

Ram Powell Oil and Gas Field Project

Ram Powell lies in the Viosca Knoll area in the Gulf of Mexico, approximately 125 miles south-east of New Orleans and around 80 miles south of Mobile, Alabama, in water depths ranging from 2,000ft to 4,000ft.

Sable Island Offshore Energy Project

The Sable Offshore Energy Project lies near Sable Island, 10km to 40km north of the edge of the Scotian Shelf, offshore Nova Scotia, in water depths ranging between 20m and 80m.

Liverpool Bay Oil and Gas Development Project

The Liverpool Bay Development is BHP Petroleum's largest global single project. It comprises four oil and gas fields, together with significant offshore and onshore facilities for extracting, transporting and processing the reserves.

Mobil oil and gas field project

Zafiro is located in the 500,000-acre Block B, 68km (42 miles) WNW of Bioko island, Equatorial Guinea, adjacent to the international border with Nigeria.

Balder Oil and Gas Field Project, Norway

Balder is located in blocks 25 / 10 and 25 / 11, 165km west of Haugesund, in a water depth of 125m. The field was discovered in 1967, but it was only during the appraisal drilling in 1974 that the major part of the field was discovered.

Bruce Phase II, North Sea

The Bruce field was originally developed under phase I, using two bridge-linked platforms, both connected to the main 32in Frigg trunkline by a 6km, 32in-diameter gas-export pipeline taking gas to the St Fergus Terminal.

Gannet Oil and Gas Field Project

Since the original field was first discovered in 1973, a number of satellite fields have been tied into the Gannet facilities. In mid-1999, the latest phase saw Gannet G going into production with a £40m project.

Semco Maritime’s Turnover Increases by 40%

2011 was a good year for Semco Maritime, with a large volume of orders and a strong growth in almost all business units. Consequently, a new strategy has been implemented to ensure continued progress with intensified focus on international growth markets.

17 April 2012

Semco Maritime Releases New Free White Paper

Semco Maritime, a leading engineering and contracting company, operating internationally within the marine and energy sectors offshore and onshore, has released a free white paper on the Offshore-Technology website. The company is specialised in fixed oil and gas installations, floating and

21 November 2010

Semco Maritime to Attend OSEA 2010 Exhibition in Singapore

The oil and gas technology trade exhibition - OSEA, was established three decades ago to be the number one industry event for Asia. In 2010 this international event is projected to bring together 22,000 industry professionals to address the strategic, operational and technological aspects of the

8 November 2010

Project South Arne Phase 3 Development

South Arne Phase 3 Development is a project initiated by HESS Denmark and partners in order to utilise more oil and gas from their present license. The project consists of several sub-projects, among others a greenfield and a brownfield project. The projects will be concluded by the end of 2012.<

12 August 2010

Semco Maritime Achieved Good Results in a Pressed Market

In 2008 Semco Maritime achieved a growth in sales of 22%, from DKK1,282 billion to DKK1,569 billion. A pressed oil and gas market made it difficult to achieve the goals set for 2008, as the result before tax was reduced from DKK61.3 million to DKK45.1 million. COO Erik Gaj Nielsen said:

19 May 2009

Rødsand Transformer Platform

In 2002 Semco Maritime has entered into a contract with Bladt Industries A/S on the establishment of a transformer platform for the Rødsand Wind Farm for SEAS Distribution A.m.b.A. The project comprises establishment of a wind farm located in the Baltic in Denmark, approx. 8 km south of N

12 August 2002

Semco Maritime A/S

Stenhuggervej 12-14
PO Box 3029
DK-6710 Esbjerg V

Semco Maritime A/S

Trafikhavnskaj 9
P.O. Box 3029
DK-6700 Esbjerg

Semco Maritime A/S

Staget 1
P.O. Box 3029
DK-6700 Esbjerg

Semco Maritime A/S

Niels Bohrs Vej 3
P.O. Box 3029
DK-6700 Esbjerg

Semco Maritime A/S

Ellekær 9
DK-2730 Herlev

Semco Maritime Kristiansand

Sagmyra 27
N-4624 Kristiansand

Semco Maritime Ltd

Tern Place, Denmore Industrial Estate
Bridge of Don
AB23 8JX
United Kingdom

Semco Maritime Protobase Ltd.

Unit 16 Philip Ford Way
Oak Tree Business Park
NR18 9AQ
United Kingdom

Semco Maritime Ltd

Port Office
Shore Road
IV18 0HD
United Kingdom

Semco Maritime Inc.

3151 Briarpark Drive, Suite 225
Texas 77042
United States of America

Semco Maritime

9 Ernest Clark Road
Canning Vale
WA 6155

Seguco S.A.

3 Av. 12-38 Zona 10
Edificio Paseo Plaza Nivel 9 oficina 902
Guatemala Ciudad

Semco Maritime Pte. Ltd.

20 Toh Guan Road
#07-03 CJ Korea Express Building
Singapore 608839

Semco Maritime Vietnam JSC

Petrovietnam Marine shipyard facility
65A2, Road 30/4, Thang Nhat Ward
Vung Tau City, Ba Ria – Vung Tau

Semco Maritime

Rm.1703, 1277 Beijing Xi Rd.
Shanghai 200040

Semco Maritime

Rm. 1932, Changjiang Office Building
No.123 Changjiang Road
Zhongshan District, Dalian

Semco Maritime Middle East LLC

Hamdan Street
P.O. Box 114552
Abu Dhabi
United States of America

Semco Maritime Middle East LLC

Al Quoz Industrial Area 4
P.O.Box 52898
United Arab Emirates

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