CompanyTrack
High-Growth Sector

Marine & Maritime Technology

A market overview of active UK companies in Marine & Maritime Technology. Figures exclude dormant and dissolved companies. Data refreshed 30 Apr 2026.

Browse all 967 companies →
Active companies
967
trading & on register
Reporting turnover
128
13% of active
Reporting employees
875
90% of active
Register health
10%
of 1,102 on register are dormant

Company size (employees)

Active companies reporting employee counts

1-9
619
10-49
189
50-249
52
250+
15

Turnover distribution

Active companies reporting turnover

<£100k
8
£100k-£1m
15
£1m-£10m
36
£10m-£100m
55
£100m+
14

Where they're based

Active companies by major UK city (30km London, 15–20km elsewhere)

Greater London
114
Liverpool
25
Glasgow
17
Manchester
15
Edinburgh
14
Birmingham
11
Cardiff
8
Belfast
6
Bristol
4
Leeds
3

New formations by year

Active companies incorporated under this category (dormant shells excluded)

46
17
58
18
45
19
48
20
33
21
42
22
17
23
6
24
3
25
0
26

Largest by turnover

#CompanyTurnoverEBITDAEmployees3y growth
1LLOYD'S REGISTER GROUP LIMITED£667.7M£93.8M4,1135%
2CLARKSON PLC£631.4M£99.1M-2%
3JAMES FISHER AND SONS PUBLIC LIMITED COMPANY£437.7M£69.3M--4%
4GARDLINE LIMITED£173.1M£57.0M42522%
5H. CLARKSON & COMPANY LIMITED£166.1M£19.6M40110%
6CAMMELL LAIRD SHIPREPAIRERS & SHIPBUILDERS LIMITED£162.8M£11.9M703-
7GLOBAL MARINE HOLDINGS LIMITED£141.4M£43.8M371-10%
8GLOBAL MARINE GROUP HOLDINGS LIMITED£141.4M£40.6M371-13%
9GLOBAL MARINE SYSTEMS LIMITED£141.4M£43.7M371-10%
10CSL EUROPE LIMITED£141.2M£2.1M53-
11RAYMARINE UK LIMITED£141.2M£24.5M18631%
12SMG EUROPE HOLDINGS LIMITED£131.6M£15.5M2,49042%
13SONARDYNE HOLDINGS LIMITED£122.3M£26.1M61943%
14ORCA MARINE LEISURE GROUP LIMITED£111.5M£5.5M1895%
15SEAMAP LIMITED£91.4M£6.1M1,41512%
16NATIONAL OCEANOGRAPHY CENTRE£86.2M£9.5M7229%
17SRT MARINE SYSTEMS PLC£78.0M£9.7M12237%
18BRIGGS COMMERCIAL LIMITED£76.5M£7.3M7437%
19BRIGGS MARINE CONTRACTORS LIMITED£72.4M£3.7M6248%
20SONARDYNE INTERNATIONAL LIMITED£67.9M£16.1M30928%

Fastest-growing

Active companies with turnover ≥ £1m, sorted by 3-year turnover CAGR

#CompanyTurnoverEmployees3y turnover growth
1BIBBY MARINE SERVICES LIMITED£5.7M61046%
2AVANTIS MARINE LIMITED£35.4M33211%
3OCEAN INSTALLER LIMITED£36.7M57108%
4NATIONAL OCEANOGRAPHY CENTRE INNOVATIONS LIMITED£8.3M-95%
5SONARDYNE HOLDINGS LIMITED£122.3M61943%
6SEDNA SYSTEMS EUROPE LIMITED£10.6M8443%
7SMG EUROPE HOLDINGS LIMITED£131.6M2,49042%
8SRT MARINE SYSTEMS PLC£78.0M12237%
9VERIPOS LIMITED£20.8M10335%
10PHAROS MARINE AUTOMATIC POWER LIMITED£16.3M6232%
11RAYMARINE UK LIMITED£141.2M18631%
12SONARDYNE INTERNATIONAL LIMITED£67.9M30928%
13MACARTNEY UK LIMITED£22.0M5927%
14BIBBY MARITIME LIMITED£5.9M1326%
15C R ENCAPSULATION LIMITED£17.3M8625%
16GARDLINE LIMITED£173.1M42522%
17CLARKSONS OFFSHORE AND RENEWABLES LIMITED£12.3M3121%
18ROYSTON LIMITED£22.1M6221%
19OCEAN INSTALLER CREWING LIMITED£7.7M3721%
20MAKEFAST LIMITED£13.6M11920%

Newest formations

Most recently incorporated active companies

#CompanyLocationIncorporated
1LANCING MARINE HOLDINGS LTDBrighton2025
2POLE STAR GLOBAL LTDLondon2025
3PHAROS MARINE HOLDINGS LIMITEDHampton2025
4SOLIS MARINE (UK) LIMITEDLondon2024
5SOLIS MARINE GROUP 2 LIMITEDLondon2024
6SOLIS MARINE HOLDINGS LIMITEDLondon2024
7VIEW ENGINEERING LTDBristol2024
8THE MARINE GROUP SERVICES LTDCardiff2024
9CLARKSON GROUP HOLDINGS LTDGlasgow2024
10BETA MARINE HOLDINGS LIMITEDQuedgeley2023
11ONLINE OCEANS ROBOTICS LIMITEDLondon2023
12FLEET MANAGEMENT LTDNewcastle Upon Tyne2023
13DEEP RESEARCH LABS LIMITEDChepstow2023
14VECTIS MARINE HOLDINGS LTDRyde2023
15FLOW MARINE LIMITEDSherborne2023
16OSMOTECH U.K. GROUP LIMITEDSouthampton2023
17CONCEPT YACHTS SHIPYARD LIMITEDSouthampton2023
18CYBERMASTER LTDHolborn2023
19AP MARINE CONSULTANTS LTDBraunton2023
20SEASCAPE SURVEILLANCE LTDGateshead2023
Browse all 967 active companies in Marine & Maritime Technology →