Company lists · Data refreshed September 2026
Top 25 Marine instrumentation calibration services worldwide
RevenueBase identified 1,658 marine instrumentation calibration services worldwide as of September 2026 and tracks 21,033 professional contacts across them, including 4,921 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers marine instrumentation calibration services worldwide, 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 20, 2026. Country and city lists for marine instrumentation calibration services follow the table.
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.
The 25 largest marine instrumentation calibration services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,389 contacts → | ||||
Partial evidence “As the global leader in calibration services, we provide precision calibration expertise in every industry, geography and instrument across the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 673 contacts → | ||||
Partial evidence “At Transcat, we are the global leader in test and measurement equipment and calibration services for highly technical industries, including life sciences, power generation…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 480 contacts → | ||||
Partial evidence “Micro Precision Calibration is a global leader offering customers around the world an easy path to instrument calibration services, standards compliance testing, equipment repair…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 408 contacts → | ||||
Partial evidence “A maritime enterprise with expertise in a variety of services and a dedication to delivering forward-thinking solutions for the industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 391 contacts → | ||||
Partial evidence “SIMCO Electronics is a leading provider of calibration, repair, and software services for manufacturing, life science, and technology organizations.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 349 contacts → | ||||
Partial evidence “Founded in 1962, CONAUT is today a reference in the automation and instrumentation segments, operating in various industrial segments.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 288 contacts → | ||||
Partial evidence “Formerly Elcome Marine Services Pvt.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 253 contacts → | ||||
Partial evidence “Founded in 1978, SE Laboratories is committed to providing the industry with quality test equipment calibration, repair, and preventative maintenance.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 243 contacts → | ||||
Partial evidence “Since its founding in 1975, Beamex has been a trusted partner for calibration excellence, helping its customers to continuously improve efficiency, ensure compliance, and increase…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 198 contacts → | ||||
Partial evidence “PCI provides calibration, commissioning, and consulting solutions for the life sciences industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 127 contacts → | ||||
Partial evidence “Since 1967, Rothe has delivered precision-driven solutions in calibration & metrology, engineering, and IT services to a wide range of commercial and industrial sectors.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 114 contacts → | ||||
Strong evidence “Nagman is a 3 decade old Instrumentation company based in Chennai, India manufacturing & marketing Portable Temperature, Pressure & Signal Calibrators, Calibration Hand Pumps…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 111 contacts → | ||||
Indirect evidence “Who is TMI?” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 111 contacts → | ||||
Partial evidence “Arabcal is an ISO/IEC 17025:2005 accredited calibration facility in the UAE.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 106 contacts → | ||||
Strong evidence “Metromac is a leader in providing Oil & Gas, Marine, Industrial and Electrical Instrumentation solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 102 contacts → | ||||
Partial evidence “Aage Hempel Group is a company specialized in maritime services mainly for the shipping industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 98 contacts → | ||||
Indirect evidence “Megasteam empresa de prestação de serviços fundada em 1992 e tem como principais atividades: Instrumentação Calibração de válvulas e instrumentos; Recepção, testes e preservação…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 95 contacts → | ||||
Indirect evidence “Every Measurement Matters.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 92 contacts → | ||||
Indirect evidence “A RioFlow é o maior complexo de calibração de vazão da América Latina, dedicado a fornecer serviços de qualidade excepcional para a indústria de Óleo & Gás.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 91 contacts → | ||||
Indirect evidence “For over 25 years, Sentinel-TDS, based in Dallas/Ft.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 88 contacts → | ||||
Strong evidence “We supply instruments, calibration and service to industry Insatech has provided instrumentation, calibration and services to Danish industry since 1989.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 87 contacts → | ||||
Indirect evidence “Kalibra helpt organisaties om te vertrouwen op betrouwbare metingen, processen en installaties.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 87 contacts → | ||||
Indirect evidence “Scientific Mes-Technik Private Limited, established in 1963, is leading manufacture of Electronic Instruments.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 86 contacts → | ||||
Partial evidence “MT-Enterprises are offering calibration, Mechanical, Electrical, Bolting and Hydrotest services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 84 contacts → | ||||
Partial evidence “VAF Instruments BV is a worldwide supplier of equipment for maritime and process industries: • Viscosity Control Systems: Viscotherm and ViscoSense; • Liquid Flowmeters; • Oil…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
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: marine instrumentation calibration services. 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 marine instrumentation calibration services.
- Partial evidence
- Its own public description names part of marine instrumentation calibration services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name marine instrumentation calibration services. 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 1,658 marine instrumentation calibration services worldwide
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Marine instrumentation calibration services worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 marine instrumentation calibration services, 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.
- Coverage
- Every country. Country and city lists for marine instrumentation calibration services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “marine instrumentation calibration services”. 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 marine instrumentation calibration services), 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 marine instrumentation calibration services, and records with no verified work email.
- 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, 4,921 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 20, 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.
Marine instrumentation calibration services by location
13 lists · largest firstEvery Marine instrumentation calibration services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Marine instrumentation calibration services based in the United States234
- Marine instrumentation calibration services based in Brazil165
- Marine instrumentation calibration services based in India165
- Marine instrumentation calibration services based in the United Kingdom87
- Marine instrumentation calibration services based in Türkiye49
- Marine instrumentation calibration services based in the United Arab Emirates49
- Marine instrumentation calibration services based in Germany44
- Marine instrumentation calibration services based in Australia41
- Marine instrumentation calibration services based in Canada41
- Marine instrumentation calibration services based in France33
- Marine instrumentation calibration services based in the Netherlands33
- Marine instrumentation calibration services based in Spain32
- Marine instrumentation calibration services based in Saudi Arabia25
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 marine instrumentation calibration services, 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 marine instrumentation calibration services are there worldwide?
RevenueBase identified 1,658 marine instrumentation calibration services worldwide 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?
Trescal, headquartered in Paris, tops this list with the largest team on record.
Which country has the most marine instrumentation calibration services?
The United States leads with 234 companies, followed by Brazil (165) and India (165). Every marine instrumentation calibration services list by country and city is linked on this page.
Which city has the most marine instrumentation calibration services?
Sao Paulo leads with 35 headquartered companies, followed by Singapore (26) and Dubai (19).
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 4,921 verified decision-maker contacts tracked across these 1,658 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 20, 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.