Company lists · Data refreshed November 2026

Top 25 Calibration and testing services based in India

RevenueBase identified 366 company matches for calibration and testing services associated with India as of November 2026 and tracks 4,506 professional contacts across them, including 284 with verified work emails. Pune is the largest hub.

This list covers company matches for calibration and testing services associated with India, 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 6, 2026.

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 6, 2026 How this list was built
366Companies
4,506Contacts tracked
284Verified emails
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The 25 largest calibration and testing services based in India

Ranked by team size
Top 25 of 366 company matches for calibration and testing services based in India, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchNavi Mumbai, IndiaHQ recorded Nov 6, 20261,001-5,000774 contacts →

Exact match

“We are committed to strengthening safety systems with the most reliable Testing and Auditing Solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchIndore, IndiaHQ recorded Nov 6, 2026201-500298 contacts →

Exact match

“Oorja Technical Services Pvt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchUdaipur, IndiaHQ recorded Nov 6, 2026201-500269 contacts →

Exact match

“YMPL offers its customers the benefits of fast turnaround time and traceable, trustworthy certificates at competitive prices for its services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchHyderabad, IndiaHQ recorded Nov 6, 202651-20086 contacts →

Exact match

“Sanray Laboratories is the leading inspection, verification, testing and certification laboratory based out of Hyderabad.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchChennai, IndiaHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“Unique Measurement Service has a leading quality Measurement, Scanning & Calibration services provider in India.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchGurgaon, IndiaHQ recorded Nov 6, 202611-5046 contacts →

Exact match

“Krishna Metallurgical Laboratories Pvt Ltd, an ISO 17025:2017 and NABL accredited testing laboratory, has been in this business since 2010 and have been catering to the companies…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchPune, IndiaHQ recorded Nov 6, 202611-5044 contacts →

Exact match

“Driving Industrial Trust Through Precision Testing Founded in 1995 and based in Pune, Chem-Tech Laboratories is one of India’s leading NABL-accredited testing and calibration labs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchChennai, IndiaHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
9Exact matchKolkata, IndiaHQ recorded Nov 6, 20261,001-5,00031 contacts →

Exact match

“MSK is a leading Independent Inspection, Testing and Certification Expert, with a global network of offices and laboratories in 31 countries across 5 continents, with headquarters…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBangalore, IndiaHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“Unique Instruments & Mfrs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchGurgaon, IndiaHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“Widmans Laboratory Pvt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchPune, IndiaHQ recorded Nov 6, 202651-20022 contacts →

Exact match

“We “Reliable Technical Services (Division of Reliable Technocare Pvt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBangalore, IndiaHQ recorded Nov 6, 202651-20021 contacts →

Exact match

“TransCal is a well established organization in the field of testing and calibration for the past 13 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchAurangabad, IndiaHQ recorded Nov 6, 202651-20020 contacts →

Exact match

“KCP has been in the field of metrology for more than two decade.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchManesar, IndiaHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Ono Sokki India Private Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchNavi Mumbai, IndiaHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“High Quality Test & Measuring Instruments and Analytical Equipments from USA, UK, Europe, Russia & Japan you can trust.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchPune, IndiaHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Zeal Manufacturing & Calibration Services Pvt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Inosystek Group is an integrated industrial technology group comprising Solutions, Engineering, and Services, delivering end-to-end solutions for modern industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBangalore, IndiaHQ recorded Nov 6, 20261-1016 contacts →

Exact match

“Sarvashree is an independent organization with primary focus on one stop calibration services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchCoimbatore, IndiaHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“SINETEC AUTOMATION PVT LTD is involved in the field of Electronic Test and Measurement, Calibration Products, Condition Monitoring Products with a well equipped support facility…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchGuindy, IndiaHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“We are a leading metrology services provider, having state-of-the-art NABL accredited laboratory with ISO 17025 certification that can help our customers meet all their business…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchVadodara, IndiaHQ recorded Nov 6, 20261-1014 contacts →

Exact match

“Welcome to our state-of-the-art TCQA Labs Private Limited!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchAhmadabad, IndiaHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Excellence in testing for everyone We strive to achieve best quality monitoring for your business to keep it competitive.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchChennai, IndiaHQ recorded Nov 6, 202651-20014 contacts →

Exact match

“Bombay Tools Supplying Agency Private Limited is a pioneer in the field of metrology and inspection gauges.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchChennai, IndiaHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“ABS Instruments Pvt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 366 calibration and testing services based in India

See the full list, filter by size, metro and specialty, and access 284 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Calibration and testing services based in India at a glance

As of Nov 6, 2026
6.3%Verified-email coverage
12.3Average contacts per company
11-50Median size (employees)
7.9%Largest-city concentration · Pune
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
101
11-50
149
51-200
98
201-500
10
501-1,000
1
1,001-5,000
5
10001+
1

Email recency for this list is measured worldwide rather than for India, so it is reported there. Company counts and contact totals on this page are exact for India, over 366 companies.

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.
What qualifies
Company records associated with India whose business descriptions match “calibration and testing 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 284 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 6, 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.

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 “calibration and testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many calibration and testing services are there based in India?

RevenueBase identified 366 company matches for calibration and testing services associated with India 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?

Equinox Labs tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most calibration and testing services?

Pune leads with 29 company records, followed by Bangalore (28) and Chennai (26).

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 284 professional contacts with verified work emails tracked across these 366 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 6, 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.