Company lists · Data refreshed November 2026

Top 25 Directional coupler calibration services worldwide

RevenueBase identified 400 company matches for directional coupler calibration services worldwide as of November 2026 and tracks 4,962 professional contacts across them, including 888 with verified work emails. The United States is the largest market and Chennai the largest hub.

This list covers company matches for directional coupler calibration services worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026. Country and city lists for directional coupler calibration services follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
400Companies
4,962Contacts tracked
888Verified emails
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The 25 largest directional coupler calibration services worldwide

Ranked by team size
Top 25 of 400 company matches for directional coupler calibration services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchGrass Valley, United StatesHQ recorded Nov 5, 2026201-500539 contacts →

Exact match

“Micro Precision Calibration is a global leader offering customers around the world an easy path to instrument calibration services, standards compliance testing, equipment repair…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchUnited StatesHQ recorded Nov 5, 202651-200254 contacts →

Exact match

“Founded in 1978, SE Laboratories is committed to providing the industry with quality test equipment calibration, repair, and preventative maintenance.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchPorto Alegre, BrazilHQ recorded Nov 5, 202651-200155 contacts →

Exact match

“LABELO is the complex of Specialized Laboratories in Electro-Electronics of PUCRS.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchChesapeake, VA, United StatesHQ recorded Nov 5, 202651-200100 contacts →

Exact match

“Every Measurement Matters.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchChelmsford, MA, United StatesHQ recorded Nov 5, 202651-20087 contacts →

Exact match

“Essco Calibration Laboratory provides calibration services for a wide variety of commercial test equipment.Capabilities include electronic, mechanical, fiber-optic…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchEichenau, GermanyHQ recorded Nov 5, 2026201-50086 contacts →

Exact match

“Präzise Kalibrierprozesse für höchste Qualität und Sicherheit Die esz AG calibration & metrology gehört zu den führenden europäischen Kalibrierlaboren.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchSao Paulo, BrazilHQ recorded Nov 5, 202651-20072 contacts →

Exact match

“Fundado em 1992, o CTM - Centro Tecnológico de Metrologia destaca-se como uma empresa líder na prestação de serviços metrológicos, abrangendo uma ampla gama de áreas, tais como…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchCoatesville, IL, United StatesHQ recorded Nov 5, 202651-20067 contacts →

Exact match

“Constellation PowerLabs has been performing quality calibrations and testing services since 1911.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchSucy-en-brie, FranceHQ recorded Nov 5, 202651-20061 contacts →

Exact match

“ASERTI Metrology et MI Métrologie assurent la conformité de vos appareils de mesure, quelle que soit leur marque, selon les spécifications constructeur ou vos propres exigences.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchPiracicaba, BrazilHQ recorded Nov 5, 202651-20060 contacts →

Exact match

“A Aferitec está no mercado de calibração e ensaio desde 1994.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchIztapalapa, MexicoHQ recorded Nov 5, 202651-20052 contacts →

Exact match

“Laboratorio líder en México en instrumentación, metrología y calibración, con más de 40 años de experiencia brindando soluciones confiables al sector industrial a nivel nacional.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchCanoas, BrazilHQ recorded Nov 5, 202611-5049 contacts →

Exact match

“A Metroquality é uma empresa especializada nas áreas de Metrologia e Ensaios, atuando desde novembro de 1996.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchChennai, IndiaHQ recorded Nov 5, 202651-20044 contacts →

Exact match

“Hi Tech Calibration Services is an independent calibration laboratory established in 2003 by focusing strongly and consistently with single minded dedication to quality and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchChandivali, IndiaHQ recorded Nov 5, 202651-20042 contacts →

Exact match

“About Karandikar Laboratories (KLPL) Since our establishment in 1994, Karandikar Laboratories Pvt Ltd (KLPL) has been at the forefront of Testing and Calibration in India.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchBogota, ColombiaHQ recorded Nov 5, 202651-20038 contacts →

Exact match

“Set and Gad is a provider of calibration services for measurement equipment in the pharmaceutical, life sciences, defense, manufacturing, power generation and other high-tech…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchAtizapan De Zaragoza, MexicoHQ recorded Nov 5, 202611-5038 contacts →

Exact match

“La Propuesta Única de Venta de CalPro es proporcionar a nuestros clientes Seguridad, Ahorros, Calidad, Cuidado al medio ambiente, Inocuidad, por medio de la aplicación de la…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchMilwaukie, OR, United StatesHQ recorded Nov 5, 202611-5036 contacts →

Exact match

“Cal-Cert has provided high quality, professional calibration services to the materials testing industry for over 40 years and is currently accredited to ISO/IEC17025 through IAS…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchZoetermeer, NetherlandsHQ recorded Nov 5, 202611-5035 contacts →

Exact match

“Since its foundation in 1963, Tradinco Instruments designs, manufactures, distributes, repairs and calibrates high quality test and calibration equipment for industry and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchFrederick, MD, United StatesHQ recorded Nov 5, 202651-20034 contacts →

Exact match

“Electrical Test Instruments (ETI) is a leader in the calibration, repair, and sale of test and measurement equipment.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchElgin, IL, United StatesHQ recorded Nov 5, 202611-5032 contacts →

Exact match

“Assurance Technologies, Inc.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchFox River Grove, IL, United StatesHQ recorded Nov 5, 202611-5029 contacts →

Exact match

“American Calibration Inc.(ACI), part of the Concept family of companies, is proudly expanding and has been serving the industry coast-to-coast for over 30 years.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Nov 5, 202611-5029 contacts →

Exact match

“VIPRO Technical Services oers expert quality service in the calibration of all major types of equipment (electrical, mechanical, pressure, temperature, force, and more).”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchDakar, SenegalHQ recorded Nov 5, 202611-5025 contacts →

Exact match

“Situé dans la région de DAKAR, le LAME – Laboratoire Africain de MEtrologie est spécialisé dans l’étalonnage et la vérification d’instruments de mesure.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchBorculo, NetherlandsHQ recorded Nov 5, 202611-5023 contacts →

Exact match

“CIJ Borculo is de onafhankelijke en deskundige partij voor het uitvoeren van kalibraties, certificatie, service en installatie van meetmiddelen en meetinstallaties.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchPune, IndiaHQ recorded Nov 5, 202611-5019 contacts →

Exact match

“Zeal Manufacturing & Calibration Services Pvt.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 400 directional coupler calibration services worldwide

See the full list, filter by size, metro and specialty, and access 888 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Directional coupler calibration services worldwide at a glance

As of Nov 5, 2026
17.9%Verified-email coverage
12.4Average contacts per company
11-50Median size (employees)
1.8%Largest-city concentration · Chennai
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
152
11-50
187
51-200
49
201-500
6

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for directional coupler calibration services are linked below.
What qualifies
Company records worldwide whose business descriptions match “directional coupler calibration services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 888 professional contacts with verified work emails across the full matched dataset. 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 November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Directional coupler calibration services by location

1 lists · largest first

Every Directional coupler calibration services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “directional coupler calibration services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many directional coupler calibration services are there worldwide?

RevenueBase identified 400 company matches for directional coupler calibration services worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Micro Precision Calibration tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most directional coupler calibration services?

The United States leads with 76 companies. Every directional coupler calibration services list by country and city is linked on this page.

Which city has the most directional coupler calibration services?

Chennai leads with 7 company records, followed by Lima (7) and Faridabad (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 888 professional contacts with verified work emails tracked across these 400 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 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 SmartSearch, 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.