# The 46 largest Maritime Transportation companies in England

Tamtam tracks 46 Maritime Transportation companies headquartered in England. This list ranks all of them by number of employees on LinkedIn, led by V.Group, Lloyd's Register and Zodiac Maritime. Their median headcount is 353. Half of them were founded in 1971 or later. The most common headquarters are London (22), Southampton (3) and Plymouth (2).

These companies are primarily large and mid-sized firms in maritime transportation, encompassing a range of activities from ship management to safety and logistics. They include V.Group, a partner in maritime innovations; Lloyd's Register, providing engineering and technology services; Zodiac Maritime, a global ship operating company; and Clarksons, offering extensive maritime services. Several companies also focus on specialized areas like luxury yacht manufacturing or cruise lines.

A notable pattern is the concentration of headquarters in London, indicating its role as a central hub for the maritime industry in England. Other significant locations include Southampton and Birkenhead. The founding dates range widely, from established entities like Trinity House (1514) and Lloyd's Register (1760) to newer companies such as Ambassador Cruise Line (2021).

🇬🇧 England · 46 companies · Updated Nov 13, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [V.Group](https://www.tamtam.ai/c/v-group) (vgrouplimited.com)<br>A dedicated partner advancing maritime activities and innovations | Maritime Transportation | 🇬🇧 London | 5,889 | 1984 |
| 2 | [Lloyd's Register](https://www.tamtam.ai/c/lloyd-s-register) (lr.org)<br>Provides professional engineering and technology services to improve safety and performance of critical infrastructures worldwide, supporting engineering research and education. | Maritime Transportation | 🇬🇧 London | 5,881 | 1760 |
| 3 | [Zodiac Maritime](https://www.tamtam.ai/c/zodiac-maritime) (zodiac-maritime.com)<br>A global ship operating company headquartered in London, managing a diverse fleet of bulk carriers, tankers, container ships, and car carriers with over 6,500 crew members | Maritime Transportation | 🇬🇧 London | 2,257 | 1976 |
| 4 | [Clarksons](https://www.tamtam.ai/c/clarksons) (clarksons.com)<br>Global maritime services company offering shipbroking, research, finance, digital tools, port services, and green advisory services for smarter, sustainable shipping solutions | Maritime Transportation | 🇬🇧 St. Katharine Docks | 1,991 | 1852 |
| 5 | [Merchant Navy](https://www.tamtam.ai/c/merchant-navy)<br>Global maritime industry employing professional seafarers on commercial vessels to facilitate international trade across the world | Maritime Transportation | 🇬🇧 London | 1,869 |  |
| 6 | [Survitec Group Ltd.](https://www.tamtam.ai/c/survitec-group-ltd) (survitecgroup.com)<br>Global leader in survival technology providing liferafts, marine evacuation systems, offshore PPE, and critical safety solutions worldwide. | Maritime Transportation | 🇬🇧 Birkenhead | 1,425 | 1854 |
| 7 | [Princess Yachts](https://www.tamtam.ai/c/princess-yachts) (princessyachts.com)<br>Design and manufacture luxury yachts with skilled craftsmanship, focusing on detailed perfection to deliver exceptional boating experiences. | Maritime Transportation | 🇬🇧 Plymouth | 1,132 | 1965 |
| 8 | [Maritime and Coastguard Agency](https://www.tamtam.ai/c/maritime-and-coastguard-agency) (linktr.ee)<br>This organization implements maritime safety policies in the UK, provides search and rescue services, inspects ships, certifies seafarers, and responds to pollution incidents | Maritime Transportation | 🇬🇧 Southampton | 1,056 |  |
| 9 | [PD Ports](https://www.tamtam.ai/c/pd-ports) (pdports.co.uk)<br>Operate major UK ports and logistics centers, manage vessel traffic, support apprenticeships, and maintain supply chain efficiency across key locations. | Maritime Transportation | 🇬🇧 Middlesbrough | 676 |  |
| 10 | [SSY](https://www.tamtam.ai/c/ssy) (ssyglobal.com)<br>140 years of experience as a trusted independent broking partner, shaping the industry with 500 experts globally, committed to moving maritime forward | Maritime Transportation | 🇬🇧 London | 672 | 1880 |
| 11 | [Braemar](https://www.tamtam.ai/c/braemar) (braemar.com)<br>Specializing in investment, chartering, and risk management advice for the shipping and energy industries, Braemar offers integrated services for sustainable returns | Maritime Transportation | 🇬🇧 London | 598 | 1972 |
| 12 | [LOC](https://www.tamtam.ai/c/loc) (loc-group.com)<br>Global consultancy with specialists worldwide offering expertise in shipping, renewables, oil & gas, and marine sectors for urgent and complex challenges | Maritime Transportation | 🇬🇧 London | 534 | 1979 |
| 13 | [HM Coastguard](https://www.tamtam.ai/c/hm-coastguard) (gov.uk)<br>Responsible for initiating and coordinating all maritime search and rescue operations within the UK Maritime Search and Rescue Region | Maritime Transportation | 🇬🇧 Southampton | 531 | 1822 |
| 14 | [Trinity House](https://www.tamtam.ai/c/trinity-house) (trinityhouse.co.uk)<br>A maritime charity dedicated to safeguarding shipping and seafarers, providing education, support, and aids to navigation services for mariners' safety and welfare | Maritime Transportation | 🇬🇧 London | 517 | 1514 |
| 15 | [Ambassador Cruise Line](https://www.tamtam.ai/c/ambassador-cruise-line) (ambassadorcruiseline.com)<br>A new British cruise line focused on authentic, sustainable experiences, with friendly, diverse staff creating a community at sea for guests | Maritime Transportation | 🇬🇧 Purfleet | 438 | 2021 |
| 16 | [Port of London Authority](https://www.tamtam.ai/c/port-of-london-authority) (pla.co.uk)<br>A trust port operating along the River Thames, prioritizing safety, environmental protection, and promoting trade and travel for current and future stakeholders | Maritime Transportation | 🇬🇧 Gravesend | 434 | 1909 |
| 17 | [Navigator Gas](https://www.tamtam.ai/c/navigator-gas) (navigatorgas.com)<br>A leading shipping company with the world's largest fleet of liquefied gas carriers, providing international transportation and distribution of LPG, petrochemical gases, and ammonia | Maritime Transportation | 🇬🇧 London | 408 | 1997 |
| 18 | [James Fisher and Sons plc](https://www.tamtam.ai/c/james-fisher-and-sons-plc) (james-fisher.com)<br>A leading provider of specialist services to marine, oil & gas, and high assurance industries worldwide, delivering solutions to technical challenges | Maritime Transportation | 🇬🇧 Barrow-in-Furness | 400 | 1847 |
| 19 | [James Fisher Subtech](https://www.tamtam.ai/c/james-fisher-subtech) (james-fisher.com)<br>Specializing in marine support for construction, O&M, and decommissioning projects in oil & gas, civil, and marine industries worldwide | Maritime Transportation | 🇬🇧 Lowestoft | 398 | 1995 |
| 20 | [S5 Agency World Ltd](https://www.tamtam.ai/c/s5-agency-world-ltd) (s5agencyworld.com)<br>Global shipping agency offering comprehensive services to charterers, ship managers, owners/operators worldwide with a focus on detail, transparency, and efficiency | Maritime Transportation | 🇬🇧 London | 392 | 2004 |
| 21 | [Global Ports Holding](https://www.tamtam.ai/c/global-ports-holding) (globalportsholding.com)<br>One of the world's largest cruise port operators, managing numerous ports globally for both cruise and commercial purposes, serving millions of passengers annually | Maritime Transportation | 🇬🇧 London | 365 | 2004 |
| 22 | [OneOcean](https://www.tamtam.ai/c/oneocean) (oneocean.com)<br>provides a comprehensive digital platform integrating people, data, and workflows to enhance maritime operations, performance, and sustainability worldwide. | Maritime Transportation | 🇬🇧 London | 357 | 1992 |
| 23 | [Sperry Marine](https://www.tamtam.ai/c/sperry-marine) (sperrymarine.com)<br>Sperry Marine offers advanced navigation solutions for commercial and defense maritime industries, ensuring efficiency, reliability, and safety worldwide with over 100 years of expertise | Maritime Transportation | 🇬🇧 New Malden | 353 |  |
| 24 | [Institute of Marine Engineering, Science & Technology (IMarEST)](https://www.tamtam.ai/c/institute-of-marine-engineering-science-and-technology-imarest) (imarest.org)<br>Global membership organization for marine professionals, offering recognition and resources to sustainably manage and develop marine resources for humanity's benefit | Maritime Transportation | 🇬🇧 London | 329 | 1889 |
| 25 | [The Nautical Institute](https://www.tamtam.ai/c/the-nautical-institute) (nautinst.org)<br>International body promoting professionalism, best practices, and safety in maritime Offers services, accreditation for training schemes, and discounts on specialist maritime books for members | Maritime Transportation | 🇬🇧 London | 326 | 1971 |
| 26 | [Wightlink \| Isle of Wight Ferries](https://www.tamtam.ai/c/wightlink-isle-of-wight-ferries) (wightlink.co.uk)<br>A leading domestic ferry operator linking the Isle of Wight to the mainland, providing easy, frequent service for residents and holidaymakers | Maritime Transportation | 🇬🇧 Portsmouth | 325 |  |
| 27 | [Port of Dover](https://www.tamtam.ai/c/port-of-dover) (portofdover.com)<br>The company operates Europe's busiest ferry port, handling up to £122 billion of trade annually, supporting jobs, and undertaking major projects for port enhancement | Maritime Transportation | 🇬🇧 Dover | 311 | 1606 |
| 28 | [Howe Robinson Partners](https://www.tamtam.ai/c/howe-robinson-partners) (howerobinson.com)<br>A global shipbroking group providing comprehensive services in tanker, containership, dry bulk, LNG, and offshore markets, with over 330 employees worldwide | Maritime Transportation | 🇬🇧 London | 300 | 1883 |
| 29 | [Merchant Navy](https://www.tamtam.ai/c/merchant-navy-london) (fleetship.com)<br>A marine services company providing officer recruitment and manning services with locations in Mumbai and Lucknow, India | Maritime Transportation | 🇬🇧 London | 225 |  |
| 30 | [W K Webster and Co Ltd](https://www.tamtam.ai/c/w-k-webster-and-co-ltd) (wkwebster.com)<br>With a legacy dating back to 1861, this company offers top-notch marine and transit claims consultancy services worldwide, focusing on quality and innovation | Maritime Transportation | 🇬🇧 Sidcup | 185 | 1861 |
| 31 | [Royal Institution of Naval Architects](https://www.tamtam.ai/c/royal-institution-of-naval-architects) (rina.org.uk)<br>International society for naval architects involved in ship design, construction, and repair worldwide Organizes conferences, training courses, and publishes technical journals for the maritime industry | Maritime Transportation | 🇬🇧 London | 182 | 1860 |
| 32 | [NYK Group Europe Ltd](https://www.tamtam.ai/c/nyk-group-europe-ltd) (nykeurope.com)<br>A global transportation company operating a large fleet of ocean vessels, planes, and trucks, with diverse shipping services and worldwide presence | Maritime Transportation | 🇬🇧 London | 173 | 1885 |
| 33 | [Spot Ship](https://www.tamtam.ai/c/spot-ship) (spot-ship.com)<br>technology platform offering chartering solutions to increase profitability and reduce administrative workload for shipbroking businesses | Maritime Transportation | 🇬🇧 London | 168 | 2019 |
| 34 | [Hull Blyth Group](https://www.tamtam.ai/c/hull-blyth-group) (hull-blyth.com)<br>A British-owned ship agency with 170 years experience in West Africa, offering a wide range of services in various sectors Proud member of Multiport Ship Agencies Network | Maritime Transportation | 🇬🇧 London | 166 | 1844 |
| 35 | [E.A. Gibson Shipbrokers](https://www.tamtam.ai/c/e-a-gibson-shipbrokers) (gibsons.co.uk)<br>International Shipbroking House offering premium services for various shipping markets including Tanker, Dry Cargo, Offshore, Gas, and Sale & Purchase Also provides consultancy and research services | Maritime Transportation | 🇬🇧 London | 164 | 1893 |
| 36 | [MDL Marinas Ltd](https://www.tamtam.ai/c/mdl-marinas-ltd) (mdlmarinas.co.uk)<br>Specialists in marina development and operations with over 40 years of experience, offering comprehensive in-house resources and expertise internationally | Maritime Transportation | 🇬🇧 Southampton | 163 | 1973 |
| 37 | [INTERCARGO](https://www.tamtam.ai/c/intercargo) (intercargo.org)<br>Representing dry cargo shipowners by providing a forum for discussing regulatory challenges, safety, environmental concerns, and promoting free and fair competition in the industry | Maritime Transportation | 🇬🇧 London | 158 | 1980 |
| 38 | [Lewmar](https://www.tamtam.ai/c/lewmar) (lewmar.com)<br>Global supplier of yacht equipment, including glass, roofing systems, winches, anchoring, thrusters, hatches, and portlights for boat builders worldwide Prioritizes innovation, reliability, and customer service | Maritime Transportation | 🇬🇧 Havant | 153 | 2021 |
| 39 | [Njord Offshore Ltd.](https://www.tamtam.ai/c/njord-offshore-ltd) (njordoffshore.com)<br>The company operates crew transfer vessels tailored for offshore windfarms, offering services beyond typical vessels, all classed to DNV standards | Maritime Transportation | 🇬🇧 Tendring | 149 | 2011 |
| 40 | [Ghana Shippers' Authority](https://www.tamtam.ai/c/ghana-shippers-authority) (shippers.org.gh)<br>State agency protecting and promoting shippers' interests in Ghana regarding port, ship, and inland transport, ensuring safe, reliable, and cost-effective cargo handling. | Maritime Transportation | 🇬🇧 Accra | 145 | 1974 |
| 41 | [Graypen Group](https://www.tamtam.ai/c/graypen-group) (graypen.com)<br>A leading tanker agency company known for superior service, operational excellence, strict compliance with health and safety, and experienced teams | Maritime Transportation | 🇬🇧 Immingham | 62 | 1969 |
| 42 | [Ancasta International Boat Sales](https://www.tamtam.ai/c/ancasta-international-boat-sales) (ancasta.com)<br>Professional ABYA brokers helping buyers with boat purchases worldwide, offering a comprehensive service including viewings, negotiations, finance, insurance, and more for FREE | Maritime Transportation | 🇬🇧 Hamble | 55 |  |
| 43 | [FIBRE Mechanics Ltd](https://www.tamtam.ai/c/fibre-mechanics-ltd) (fibremechanics.com)<br>This company based in UK specializes in building custom carbon fibre performance yachts, lightweight components, and structures in Lymington and Hythe | Maritime Transportation | 🇬🇧 Lymington | 51 | 2016 |
| 44 | [Star Reefers UK Limited](https://www.tamtam.ai/c/star-reefers-uk-limited) (siemshipping.com)<br>A leading reefer ship owner and operator listed on the Oslo Stock Exchange, providing modern tonnage for global perishable produce transportation | Maritime Transportation | 🇬🇧 London | 46 |  |
| 45 | [PME POWER SYSTEMS GROUP LIMITED](https://www.tamtam.ai/c/pme-power-systems-group-limited) (pmegroup.co.uk)<br>Specialist engineering company in the UK and Ireland importing MAN marine engines, providing technical advice and products to the marine industry | Maritime Transportation | 🇬🇧 Plymouth | 17 | 1984 |
| 46 | [Graypen](https://www.tamtam.ai/c/graypen) (graypen.com)<br>A leading tanker agency excelling in service, scale, operational excellence, and compliance with a well-trained, experienced team | Maritime Transportation | 🇬🇧 Immingham | 10 | 1969 |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 13, 2026.

## More company lists in England

- [The largest companies in England](https://www.tamtam.ai/l/largest-companies-england) (32,641)
- [Retail chains in England](https://www.tamtam.ai/l/retail-chains-england) (2,917)
- [Manufacturers in England](https://www.tamtam.ai/l/manufacturers-england) (1,794)
- [Companies with in-house R&D in England](https://www.tamtam.ai/l/r-and-d-companies-england) (1,703)
- [Retail companies in England](https://www.tamtam.ai/l/retail-companies-england) (1,415)
- [Hotel and hospitality groups in England](https://www.tamtam.ai/l/hospitality-groups-england) (1,273)
- [Education providers in England](https://www.tamtam.ai/l/education-companies-england) (1,081)
- [Hardware manufacturers in England](https://www.tamtam.ai/l/hardware-companies-england) (1,067)
- [Wellness and Fitness Services companies in England](https://www.tamtam.ai/l/wellness-and-fitness-services-companies-england) (1,032)
- [Critical infrastructure operators in England](https://www.tamtam.ai/l/critical-infrastructure-operators-england) (1,029)
- [Hospitality companies in England](https://www.tamtam.ai/l/hospitality-companies-england) (1,025)
- [Family-owned companies in England](https://www.tamtam.ai/l/family-owned-companies-england) (1,014)
- [Distributors and wholesalers in England](https://www.tamtam.ai/l/distributors-and-wholesalers-england) (938)
- [Healthcare providers in England](https://www.tamtam.ai/l/healthcare-providers-england) (810)
- [Insurance companies in England](https://www.tamtam.ai/l/insurance-companies-england) (699)
- [Consumer goods companies in England](https://www.tamtam.ai/l/consumer-goods-companies-england) (671)
- [Construction companies in England](https://www.tamtam.ai/l/construction-companies-england) (667)
- [Hospitals and Health Care companies in England](https://www.tamtam.ai/l/hospitals-and-health-care-companies-england) (649)
- [Public sector organisations in England](https://www.tamtam.ai/l/public-sector-organisations-england) (638)
- [Food and beverage companies in England](https://www.tamtam.ai/l/food-and-beverage-companies-england) (635)
- [Food and Beverage Services companies in England](https://www.tamtam.ai/l/food-and-beverage-services-companies-england) (606)
- [Food and Beverage Manufacturing companies in England](https://www.tamtam.ai/l/food-and-beverage-manufacturing-companies-england) (582)
- [Corporate groups and holding companies in England](https://www.tamtam.ai/l/holding-companies-england) (578)
- [Restaurants companies in England](https://www.tamtam.ai/l/restaurants-companies-england) (506)

## The same list elsewhere in United Kingdom

- [Maritime Transportation companies in the United Kingdom](https://www.tamtam.ai/l/maritime-transportation-companies-united-kingdom) (59)

## The same list elsewhere

- [Maritime Transportation companies in the world](https://www.tamtam.ai/l/maritime-transportation-companies-in-the-world) (860)
- [Maritime Transportation companies in Europe](https://www.tamtam.ai/l/maritime-transportation-companies-in-europe) (516)

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Source: https://www.tamtam.ai/l/maritime-transportation-companies-england