Company lists · Data refreshed September 2026

Top 25 Calibration instrument manufacturers based in the United Kingdom

Name: Calibration 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 30, 2026 164 companies tracked

RevenueBase identified 164 calibration instrument manufacturers headquartered in the United Kingdom as of September 2026 and tracks 2,097 professional contacts across them, including 766 with verified work emails. London is the largest hub.

This list covers calibration 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 30, 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 30, 2026 86% judged on-target in blind review

164Companies

2,097Contacts tracked

766Verified emails

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The 25 largest calibration instrument manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 164 calibration instrument manufacturers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to calibration 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	Spectris PLC	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	5,001-10,000	132 contacts →
	Indirect evidence “Spectris combines precision with purpose, delivering progress for a more sustainable world.” Source: RevenueBase Database · checked Sep 30, 2026
2	Horiba UK Limited	Partial evidence	Northampton, United KingdomHQ checked Sep 30, 2026	51-200	97 contacts →
	Partial evidence “HORIBA UK Limited, part of the HORIBA Group of worldwide companies, provides an extensive array of instruments and systems for applications ranging from automotive R&D, process…” Source: RevenueBase Database · checked Sep 30, 2026
3	Mitutoyo UK LTD	Partial evidence	Andover, United KingdomHQ checked Sep 30, 2026	51-200	84 contacts →
	Partial evidence “Mitutoyo is the world's leading manufacturer of precision measuring equipment, offering a huge range of products from micrometers, calipers and dial gauges to hardness testers…” Source: RevenueBase Database · checked Sep 30, 2026
4	PST IS NOW Dwyeromega	Indirect evidence	Ely, United KingdomHQ checked Sep 30, 2026	1,001-5,000	81 contacts →
	Indirect evidence “Process Sensing Technologies (PST) is now DwyerOmega!” Source: RevenueBase Database · checked Sep 30, 2026
5	Kane International Limited	Indirect evidence	Welwyn Garden City, United KingdomHQ checked Sep 30, 2026	51-200	74 contacts →
	Indirect evidence “Since 1963, Kane International Ltd has been in Welwyn Garden City, Hertfordshire, and has a long history and broad experience designing and manufacturing portable test equipment.” Source: RevenueBase Database · checked Sep 30, 2026
6	Delta Mobrey LTD	Strong evidence	Camberley, United KingdomHQ checked Sep 30, 2026	51-200	73 contacts →
	Strong evidence “Performance process instrumentation With a proud history spanning over 100 years, Delta Mobrey Limited is a globally recognised specialist in the design & manufacture of Level…” Source: RevenueBase Database · checked Sep 30, 2026
7	Stanhope-Seta	Strong evidence	Surrey, United KingdomHQ checked Sep 30, 2026	51-200	66 contacts →
	Strong evidence “Stanhope-Seta design and manufacture Laboratory test instruments for quality control, product consistency, research, calibration and analysis.” Source: RevenueBase Database · checked Sep 30, 2026
8	TORUS	Indirect evidence	Telford, United KingdomHQ checked Sep 30, 2026	51-200	57 contacts →
	Indirect evidence “The Torus name has been recognized as a leader in measurement, automation, metrology and manufacturing for over 20 years.” Source: RevenueBase Database · checked Sep 30, 2026
9	Bowers Group	Indirect evidence	Camberley, United KingdomHQ checked Sep 30, 2026	51-200	51 contacts →
	Indirect evidence “Bowers Group specialises in delivering a comprehensive range of precision measuring solutions to some of the most competitive and demanding shop-floor environments.” Source: RevenueBase Database · checked Sep 30, 2026
10	British Rototherm Group	Indirect evidence	Port Talbot, United KingdomHQ checked Sep 30, 2026	201-500	50 contacts →
	Indirect evidence “We are the British Rototherm Group and we have been designing the world's most accurate measurement solutions since the 1840's.” Source: RevenueBase Database · checked Sep 30, 2026
11	Stewart-Buchanan Gauges LTD	Indirect evidence	Glasgow, United KingdomHQ checked Sep 30, 2026	51-200	42 contacts →
	Indirect evidence “At Stewart-Buchanan Gauges Ltd, our aim is to continually develop a company which is already dedicated to the needs of its customers through our Market-leading product innovation…” Source: RevenueBase Database · checked Sep 30, 2026
12	Isotech	Strong evidence	Southport, United KingdomHQ checked Sep 30, 2026	51-200	35 contacts →
	Strong evidence “Temperature Calibration Equipment & Services Isotech is a world leader in temperature calibration with over 45 years' experience in the design, manufacture and use of temperature…” Source: RevenueBase Database · checked Sep 30, 2026
13	Avon-Dynamic Calibration LTD	Partial evidence	Bristol, United KingdomHQ checked Sep 30, 2026	51-200	32 contacts →
	Partial evidence “As a part of the NMi Group, Avon-Dynamic stands as a leading UK calibration and dimensional measurement specialist since 1985.” Source: RevenueBase Database · checked Sep 30, 2026
14	Ccpi Europe	Partial evidence	Sheffield, United KingdomHQ checked Sep 30, 2026	51-200	30 contacts →
	Partial evidence “Founded in 1984 near Sheffield, UK - the historic “Steel City” - CCPI Europe brings over 40 years of expertise in temperature sensor manufacturing and thermal calibration.” Source: RevenueBase Database · checked Sep 30, 2026
15	Scotia Instrumentation Limited	Strong evidence	Aberdeen, United KingdomHQ checked Sep 30, 2026	51-200	29 contacts →
	Strong evidence “Scotia Instrumentation is a specialist calibration, repair, hire & sales organisation providing services across a range of precision instrumentation and test equipment.” Source: RevenueBase Database · checked Sep 30, 2026
16	Micro Precision	Partial evidence	Maidstone, United KingdomHQ checked Sep 30, 2026	51-200	27 contacts →
	Partial evidence “Offering a comprehensive solution to meet the demands of Test & Measurement professionals both nationally and internationally, including Test Equipment Sales, Calibration…” Source: RevenueBase Database · checked Sep 30, 2026
17	Gen3	Indirect evidence	Farnborough, United KingdomHQ checked Sep 30, 2026	11-50	22 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
18	Electroserv	Partial evidence	Macclesfield, United KingdomHQ checked Sep 30, 2026	11-50	20 contacts →
	Partial evidence “Electroserv has five decades of experience and expertise in the supply of process control instrumentation.” Source: RevenueBase Database · checked Sep 30, 2026
19	Turnkey Instruments LTD	Strong evidence	Northwich, United KingdomHQ checked Sep 30, 2026	11-50	17 contacts →
	Strong evidence “Turnkey Instruments Ltd is a leading designer and manufacturer of quality industrial and scientific instrumentation ranging from heavy vehicle brake testers to air quality…” Source: RevenueBase Database · checked Sep 30, 2026
20	Inov8 Systems LTD	Partial evidence	Belfast, United KingdomHQ checked Sep 30, 2026	11-50	15 contacts →
	Partial evidence “Inov8s Systems designs, manufactures and sells market leading Oil & Gas measurement equipment.” Source: RevenueBase Database · checked Sep 30, 2026
21	Wallace Instruments	Strong evidence	Dorking, United KingdomHQ checked Sep 30, 2026	11-50	14 contacts →
	Strong evidence “Wallace Instruments is a manufacturer of precision materials testing equipment for measuring physical properties such as hardness, plasticity, viscosity, cure, compression.” Source: RevenueBase Database · checked Sep 30, 2026
22	SJ Electronics LTD	Partial evidence	Kettering, United KingdomHQ checked Sep 30, 2026	11-50	14 contacts →
	Partial evidence “Technical distributor of electronic and electrical test and measurement equipment and electrical, temperature and pressure calibration systems.” Source: RevenueBase Database · checked Sep 30, 2026
23	Evolution Measurement LTD	Indirect evidence	Andover, United KingdomHQ checked Sep 30, 2026	11-50	13 contacts →
	Indirect evidence “Evolution Measurement is a provider of physical and consultative solutions to your measurement problems.” Source: RevenueBase Database · checked Sep 30, 2026
24	Astles Control Systems LTD	Indirect evidence	Princes Risborough, United KingdomHQ checked Sep 30, 2026	11-50	13 contacts →
	Indirect evidence “Design and production of on-line integrated chemical control systems, specialising in conductivity, pH, Fluoride, redox and temperature.” Source: RevenueBase Database · checked Sep 30, 2026
25	Gmc-I Prosys	Indirect evidence	Skelmersdale, United KingdomHQ checked Sep 30, 2026	11-50	13 contacts →
	Indirect evidence “Founded in January 2008, located in Skelmersdale (Lancashire) in North West England.” Source: RevenueBase Database · checked Sep 30, 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: calibration 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 calibration instrument manufacturers.
Partial evidence: Its own public description names part of calibration instrument manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name calibration 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 164 calibration instrument manufacturers based in the United Kingdom

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Calibration instrument manufacturers based in the United Kingdom at a glance

As of Sep 30, 2026

36.5%Verified-email coverage

12.8Average contacts per company

11-50Median size (employees)

6.1%Largest-city concentration · London

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

5,001-10,000

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 164 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 calibration 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 “calibration 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 calibration 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 calibration 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, 766 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 30, 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 calibration 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 calibration instrument manufacturers are there based in the United Kingdom?

RevenueBase identified 164 calibration 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?

Spectris PLC, headquartered in London, tops this list with the largest team on record.

Which city has the most calibration instrument manufacturers?

London leads with 10 headquartered companies, followed by Bolton (3) and Derby (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 766 verified decision-maker contacts tracked across these 164 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 30, 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.