Company lists · Data refreshed September 2026

Top 25 Oceanographic instrument manufacturers based in the United Kingdom

Name: Oceanographic instrument manufacturers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 68 companies tracked

RevenueBase identified 68 oceanographic instrument manufacturers headquartered in the United Kingdom as of September 2026 and tracks 1,112 professional contacts across them, including 458 with verified work emails. Aberdeen is the largest hub.

This list covers oceanographic instrument manufacturers headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

68Companies

1,112Contacts tracked

458Verified emails

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The 25 largest oceanographic instrument manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 68 oceanographic instrument manufacturers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to oceanographic instrument manufacturers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Sonardyne International LTD	Indirect evidence	Yateley, United KingdomHQ checked Sep 17, 2026	201-500	273 contacts →
	Indirect evidence “Underwater innovations for energy, defence and science.” Source: RevenueBase Database · checked Sep 17, 2026
2	Seiche	Indirect evidence	Holsworthy, United KingdomHQ checked Sep 17, 2026	51-200	59 contacts →
	Indirect evidence “Seiche provides marine technology and environmental service solutions for the offshore marine industries.” Source: RevenueBase Database · checked Sep 17, 2026
3	Gill Instruments Limited	Partial evidence	Lymington, United KingdomHQ checked Sep 17, 2026	51-200	55 contacts →
	Partial evidence “Gill is a world leading designer and manufacturer of ultrasonic anemometers and integrated weather stations.” Source: RevenueBase Database · checked Sep 17, 2026
4	Teledyne Valeport	Strong evidence	Totnes, United KingdomHQ checked Sep 17, 2026	51-200	43 contacts →
	Strong evidence “Valeport is an independently owned manufacturer of Oceanographic & Hydrometric Equipment and Instrumentation.” Source: RevenueBase Database · checked Sep 17, 2026
5	Coda Octopus Products	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 17, 2026	51-200	41 contacts →
	Indirect evidence “Coda Octopus is a global leader and specialist in underwater technologies including being the patent holder for the real-time 3D sonar, the Echoscope®.” Source: RevenueBase Database · checked Sep 17, 2026
6	Chelsea Technologies LTD	Indirect evidence	Yateley, United KingdomHQ checked Sep 17, 2026	51-200	32 contacts →
	Indirect evidence “We solve the environmental challenges of today and tomorrow, designing and manufacturing best-in-class sensing solutions to make oceans, rivers and lakes safer and cleaner.) Deep…” Source: RevenueBase Database · checked Sep 17, 2026
7	Actisense	Indirect evidence	Poole, United KingdomHQ checked Sep 17, 2026	11-50	21 contacts →
	Indirect evidence “Actisense aim to be the installers product of choice by making navigation safer with the most reliable boat electronic systems.” Source: RevenueBase Database · checked Sep 17, 2026
8	Geoacoustics LTD	Indirect evidence	Great Yarmouth, United KingdomHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “Excellence in Sound.” Source: RevenueBase Database · checked Sep 17, 2026
9	Otaq Connectors	Strong evidence	Lancaster, United KingdomHQ checked Sep 17, 2026	11-50	19 contacts →
	Strong evidence “OTAQ is a manufacturer of hi-tech products and solutions for the offshore energy, oceanographic and diving industries.” Source: RevenueBase Database · checked Sep 17, 2026
10	Blueprint Subsea	Indirect evidence	Low Wood, United KingdomHQ checked Sep 17, 2026	11-50	18 contacts →
	Indirect evidence “Driven by innovation, Blueprint Subsea's leading range of compact, robust, intuitive and affordable underwater acoustic products have been meeting the rigorous demands of the…” Source: RevenueBase Database · checked Sep 17, 2026
11	Covelya Group	Indirect evidence	Saxony Way, United KingdomHQ checked Sep 17, 2026	201-500	17 contacts →
	Indirect evidence “COVELYA GROUP LIMITED is a technology group company based out of OCEAN HOUSE BLACKBUSHE BUSINESS PARK, SAXONY WAY, YATELEY, United Kingdom.” Source: RevenueBase Database · checked Sep 17, 2026
12	RS Aqua	Indirect evidence	Portsmouth, United KingdomHQ checked Sep 17, 2026	11-50	17 contacts →
	Indirect evidence “We help ocean scientists and engineers explore further and discover more by providing powerful technologies and unparalleled expertise.” Source: RevenueBase Database · checked Sep 17, 2026
13	Alba Ultrasound Limited	Indirect evidence	Glasgow, United KingdomHQ checked Sep 17, 2026	11-50	16 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
14	C-Tecnics LTD	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 17, 2026	11-50	13 contacts →
	Indirect evidence “C-Tecnics has specialised in the design and development of underwater imaging and video recording systems for over 20 years.” Source: RevenueBase Database · checked Sep 17, 2026
15	John Lilley & Gillie LTD	Indirect evidence	North Shields, United KingdomHQ checked Sep 17, 2026	51-200	13 contacts →
	Indirect evidence “In 1812, John Lilley, aged 24, founded John Lilley and Son in London.” Source: RevenueBase Database · checked Sep 17, 2026
16	Biral UK	Partial evidence	Bristol, United KingdomHQ checked Sep 17, 2026	11-50	13 contacts →
	Partial evidence “Founded in 1975, Biral designs and manufactures high quality meteorological sensors for use in industrial, research and monitoring applications.” Source: RevenueBase Database · checked Sep 17, 2026
17	Oceantools LTD	Partial evidence	Aberdeen, United KingdomHQ checked Sep 17, 2026	11-50	12 contacts →
	Partial evidence “OceanTools is a world leading subsea engineering company specialising in the design and manufacture of equipment for the professional offshore and underwater markets.” Source: RevenueBase Database · checked Sep 17, 2026
18	Impact Subsea	Partial evidence	Aberdeen, United KingdomHQ checked Sep 17, 2026	11-50	11 contacts →
	Partial evidence “Impact Subsea designs and manufactures innovative, high-performance underwater sensing solutions, specialising in sonars, altimeters, depth sensors, attitude and heading reference…” Source: RevenueBase Database · checked Sep 17, 2026
19	Rovtech	Indirect evidence	Barrow-in-furness, United KingdomHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “Rovtech Solutions have a proud history of providing solutions to some of industries most difficult remote engineering challenges.” Source: RevenueBase Database · checked Sep 17, 2026
20	Oceanic Systems UK LTD	Indirect evidence	New Milton, United KingdomHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “Oceanic Systems is a specialist marine control and monitoring brand within the Energy Solutions group.” Source: RevenueBase Database · checked Sep 17, 2026
21	Edinburgh Designs LTD	Partial evidence	Edinburgh, United KingdomHQ checked Sep 17, 2026	11-50	8 contacts →
	Partial evidence “Edinburgh Designs is a world leader in hydrodynamic test equipment and has been specialising in the design, manufacture and installation of a wide range of wave and tidal…” Source: RevenueBase Database · checked Sep 17, 2026
22	North SEA Systems	Indirect evidence	Bristol, United KingdomHQ checked Sep 17, 2026	1-10	8 contacts →
	Indirect evidence “North Sea Systems designs, build and operates innovative survey solutions to support the marine renewable energy and offshore construction industries.” Source: RevenueBase Database · checked Sep 17, 2026
23	Catchcam Technologies	Indirect evidence	Cottingham, United KingdomHQ checked Sep 17, 2026	1-10	8 contacts →
	Indirect evidence “Underwater monitoring solutions for commercial fishing and marine research.” Source: RevenueBase Database · checked Sep 17, 2026
24	A T Instruments LTD	Strong evidence	Lymington, United KingdomHQ checked Sep 17, 2026	11-50	7 contacts →
	Strong evidence “A+T design and manufacture the best-engineered instrument systems for wind, speed, heading, position, depth and a wide range of other sensors such as load and pressure.” Source: RevenueBase Database · checked Sep 17, 2026
25	Aquaread	Strong evidence	Broadstairs, United KingdomHQ checked Sep 17, 2026	11-50	6 contacts →
	Strong evidence “Aquaread are the UK's multi award winning, designer and manufacturer of cutting edge water quality monitoring instruments.” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: oceanographic instrument manufacturers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names oceanographic instrument manufacturers.
Partial evidence: Its own public description names part of oceanographic instrument manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oceanographic instrument manufacturers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 68 oceanographic instrument manufacturers based in the United Kingdom

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Oceanographic instrument manufacturers based in the United Kingdom at a glance

As of Sep 17, 2026

41.2%Verified-email coverage

16.4Average contacts per company

11-50Median size (employees)

8.8%Largest-city concentration · Aberdeen

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 68 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among oceanographic instrument manufacturers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “oceanographic instrument manufacturers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names oceanographic instrument manufacturers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among oceanographic instrument manufacturers, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 458 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names oceanographic instrument manufacturers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many oceanographic instrument manufacturers are there based in the United Kingdom?

RevenueBase identified 68 oceanographic instrument manufacturers headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Sonardyne International LTD, headquartered in Yateley, tops this list with the largest team on record.

Which city has the most oceanographic instrument manufacturers?

Aberdeen leads with 6 headquartered companies, followed by Great Yarmouth (3) and Yateley (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 458 verified decision-maker contacts tracked across these 68 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.