Company lists · Data refreshed September 2026

Top 25 Transformer diagnostics companies based in India

Name: Transformer diagnostics companies based in India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 381 companies tracked

RevenueBase identified 381 transformer diagnostics companies headquartered in India as of September 2026 and tracks 5,874 professional contacts across them, including 459 with verified work emails. Vadodara is the largest hub.

This list covers transformer diagnostics companies headquartered in India, 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 22, 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 22, 2026 86% judged on-target in blind review

381Companies

5,874Contacts tracked

459Verified emails

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The 25 largest transformer diagnostics companies based in India

Ranked by team size

Top 25 of 381 transformer diagnostics companies based in India, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to transformer diagnostics companies: 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	Voltamp Transformers Limited	Partial evidence	Vadodara, IndiaHQ checked Sep 22, 2026	501-1,000	444 contacts →
	Partial evidence “Voltamp Transformers Limited is a Oil filled Power, Distribution and Dry type Transformer manufacturing company based in Vadodara, Gujarat State in India since year 1967.The…” Source: RevenueBase Database · checked Sep 22, 2026
2	Atlanta Electricals Limited	Indirect evidence	Anand, IndiaHQ checked Sep 22, 2026	51-200	342 contacts →
	Indirect evidence “ATLANTA ELECTRICALS is an electrical/electronic manufacturing company based out of India.” Source: RevenueBase Database · checked Sep 22, 2026
3	Telawne Power Equipments PVT LTD	Partial evidence	Navi Mumbai, IndiaHQ checked Sep 22, 2026	201-500	240 contacts →
	Partial evidence “We are a leading manufacturer of power transformers and other electronics.” Source: RevenueBase Database · checked Sep 22, 2026
4	GK Power Expertise PVT LTD	Partial evidence	Chennai, IndiaHQ checked Sep 22, 2026	201-500	173 contacts →
	Partial evidence “GK EXPERTISE is a Leading Manufacture in Transmission & Distribution Equipment of Power Transformer, Current Transformer, OLTC, Control & Relay Panels, MV Switchgears, Lighting…” Source: RevenueBase Database · checked Sep 22, 2026
5	Kanohar Electricals Limited	Partial evidence	Meerut, IndiaHQ checked Sep 22, 2026	201-500	161 contacts →
	Partial evidence “Kanohar Electricals Limited is a leading manufacturer of reliable, cost effective and high quality Transformers for generation, transmission and distribution of electric power…” Source: RevenueBase Database · checked Sep 22, 2026
6	Indo Tech Transformers LTD	Indirect evidence	Illuppapattu Village, IndiaHQ checked Sep 22, 2026	201-500	125 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
7	Shree Abirami Enggineering Works	Partial evidence	Chennai, IndiaHQ checked Sep 22, 2026	501-1,000	123 contacts →
	Partial evidence “Shree Abirami Enggineering Works has consolidated its position in the Indian electrical industry as a Re-Manufacturer of a wide range of Transformers and Hydro Generators, which…” Source: RevenueBase Database · checked Sep 22, 2026
8	Isosceles Sales & Services Pvt. LTD	Indirect evidence	Pune, IndiaHQ checked Sep 22, 2026	201-500	118 contacts →
	Indirect evidence “is the Sustain vertical of SCOPE Group.” Source: RevenueBase Database · checked Sep 22, 2026
9	Wilson Power Solutions, India	Indirect evidence	Chennai, IndiaHQ checked Sep 22, 2026	201-500	90 contacts →
	Indirect evidence “As part of the -built on a legacy since 1946-we combine over seven decades of global experience with cutting edge innovation.” Source: RevenueBase Database · checked Sep 22, 2026
10	System Protection Electrical Engineers & Consultants	Indirect evidence	Vadodara, IndiaHQ checked Sep 22, 2026	51-200	89 contacts →
	Indirect evidence “Design & Consulting Engineering Services : 1.” Source: RevenueBase Database · checked Sep 22, 2026
11	Impelco Electric Company	Partial evidence	Bangalore, IndiaHQ checked Sep 22, 2026	51-200	83 contacts →
	Partial evidence “Impelco Electric Company Manufacturer of ac transformers, dc transformers & transformers in Delhi.” Source: RevenueBase Database · checked Sep 22, 2026
12	Taurus Powertronics PVT LTD	Indirect evidence	Bangalore, IndiaHQ checked Sep 22, 2026	51-200	79 contacts →
	Indirect evidence “Taurus Powertronics Pvt Ltd was established in 1985 as a part of the Taurus group of companies, whose head office is in Bangalore, India.Taurus has established itself, over the…” Source: RevenueBase Database · checked Sep 22, 2026
13	Esennar Transformers	Partial evidence	Hyderabad, IndiaHQ checked Sep 22, 2026	201-500	65 contacts →
	Partial evidence “ESENNAR is one of the reputed Transformer manufacturers in India, with a comprehensive World class design and manufacturing facility in Hyderabad.” Source: RevenueBase Database · checked Sep 22, 2026
14	Diagnostic Technologies India Pvt. LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 22, 2026	51-200	57 contacts →
	Indirect evidence “DIATECH was founded in 1990 by Mr.” Source: RevenueBase Database · checked Sep 22, 2026
15	GTB Group	Partial evidence	Ludhiana, IndiaHQ checked Sep 22, 2026	201-500	56 contacts →
	Partial evidence “GTB Transformers (Certified 9001:2015) A leading Transformer Manufacturing and Distribution Company.” Source: RevenueBase Database · checked Sep 22, 2026
16	Melcon	Partial evidence	Alwar, IndiaHQ checked Sep 22, 2026	11-50	55 contacts →
	Partial evidence “Manufacturers & Exporters of Power, Distribution, Dry type & Specialized Transformers.” Source: RevenueBase Database · checked Sep 22, 2026
17	Mufront Technologies	Indirect evidence	Nashik, IndiaHQ checked Sep 22, 2026	11-50	46 contacts →
	Indirect evidence “We at Mufront Technologies are engaged in adding value to global electrical equipment manufacturers by supporting their testing and automation requirements with our testing…” Source: RevenueBase Database · checked Sep 22, 2026
18	Electro-Tech Transmission PVT LTD	Indirect evidence	Indore, IndiaHQ checked Sep 22, 2026	201-500	40 contacts →
	Indirect evidence “Electro-Tech Transmission Pvt.” Source: RevenueBase Database · checked Sep 22, 2026
19	Indcoil Transformers Private Limited	Partial evidence	Thane, IndiaHQ checked Sep 22, 2026	51-200	38 contacts →
	Partial evidence “Indcoil Transformers Pvt Ltd and Smisen Controls Pvt Ltd have a strong presence in the Indian manufacturing industry, with- 6 manufacturing units across Mumbai MIDC - Over 5…” Source: RevenueBase Database · checked Sep 22, 2026
20	Elmas Magnetics Pvt. LTD	Partial evidence	Hyderabad, IndiaHQ checked Sep 22, 2026	201-500	37 contacts →
	Partial evidence “ELMAS, your trusted partner in the global transformer industry, delivering excellence for about 3 decades.” Source: RevenueBase Database · checked Sep 22, 2026
21	Power Electronical	Partial evidence	Nashik, IndiaHQ checked Sep 22, 2026	11-50	31 contacts →
	Partial evidence “Power Electronical is a reputed name in the Electrical Maintenance industry in India and synonymous with High Voltage Dielectric Diagnostic Products and Testing Services…” Source: RevenueBase Database · checked Sep 22, 2026
22	NDL Power Limited	Partial evidence	Delhi, IndiaHQ checked Sep 22, 2026	201-500	31 contacts →
	Partial evidence “Established in 1984, NDL is one of the leading transformer asset & life-cycle management organisations and, one that is held in high esteem even by our competitors.” Source: RevenueBase Database · checked Sep 22, 2026
23	Excel-Par Electronics Private Limited	Partial evidence	Mysore, IndiaHQ checked Sep 22, 2026	201-500	22 contacts →
	Partial evidence “Excel-Par Electronics specialises in manufacturing high-quality transformers and chokes for sensing and power applications.” Source: RevenueBase Database · checked Sep 22, 2026
24	Herco Transformers LTD	Indirect evidence	Pune, IndiaHQ checked Sep 22, 2026	51-200	20 contacts →
	Indirect evidence “HERCO was started in mid-1952, trading in speakers used in public address systems.” Source: RevenueBase Database · checked Sep 22, 2026
25	MSC Transformers PVT LTD	Partial evidence	Pune, IndiaHQ checked Sep 22, 2026	51-200	19 contacts →
	Partial evidence “MSC Transformers Pvt.” Source: RevenueBase Database · checked Sep 22, 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: transformer diagnostics companies. 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 transformer diagnostics companies.
Partial evidence: Its own public description names part of transformer diagnostics companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name transformer diagnostics companies. 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 381 transformer diagnostics companies based in India

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Transformer diagnostics companies based in India at a glance

As of Sep 22, 2026

7.8%Verified-email coverage

15.4Average contacts per company

11-50Median size (employees)

7.9%Largest-city concentration · Vadodara

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

142

51-200

108

201-500

501-1,000

1,001-5,000

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 381 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 transformer diagnostics companies, 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 India whose own description of what they do matches “transformer diagnostics companies”. 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 transformer diagnostics companies), 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 transformer diagnostics companies, and records with no verified work email. Companies headquartered outside India 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, 459 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 22, 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.

Transformer diagnostics companies by metro

Transformer diagnostics companies in Vadodara30

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 transformer diagnostics companies, 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 transformer diagnostics companies are there based in India?

RevenueBase identified 381 transformer diagnostics companies headquartered in India 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?

Voltamp Transformers Limited, headquartered in Vadodara, tops this list with the largest team on record.

Which city has the most transformer diagnostics companies?

Vadodara leads with 30 headquartered companies, followed by Bangalore (23) and Chennai (21).

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 459 verified decision-maker contacts tracked across these 381 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 22, 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.