Company lists · Data refreshed November 2026

Top 18 Transformer oil or insulating oil suppliers based in India

RevenueBase identified 199 company matches for transformer oil or insulating oil suppliers associated with India as of November 2026 and tracks 2,655 professional contacts across them, including 93 with verified work emails. Vadodara is the largest hub.

This list covers company matches for transformer oil or insulating oil suppliers 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 2, 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 2, 2026 How this list was built
199Companies
2,655Contacts tracked
93Verified emails
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The 18 largest transformer oil or insulating oil suppliers based in India

Ranked by team size
Top 18 of 199 company matches for transformer oil or insulating oil suppliers based in India, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 2, 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 matchHyderabad, IndiaHQ recorded Nov 2, 20265,001-10,000952 contacts →

Exact match

“Vijai Electricals Ltd.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
2Exact matchVadodara, IndiaHQ recorded Nov 2, 2026501-1,000508 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
3Exact matchHyderabad, IndiaHQ recorded Nov 2, 2026201-50080 contacts →

Exact match

“ESENNAR is one of the reputed Transformer manufacturers in India, with a comprehensive World class design and manufacturing facility in Hyderabad.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
4Exact matchIndore, IndiaHQ recorded Nov 2, 2026201-50052 contacts →

Exact match

“Electro-Tech Transmission Pvt.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
5Exact matchHyderabad, IndiaHQ recorded Nov 2, 2026201-50047 contacts →

Exact match

“ELMAS, your trusted partner in the global transformer industry, delivering excellence for about 3 decades.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
6Exact matchAhmedabad, IndiaHQ recorded Nov 2, 202651-20032 contacts →

Exact match

“A Recognized leader in the field of Process Vacuum equipment particularly high voltage Insulation drying.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
7Exact matchAgra, IndiaHQ recorded Nov 2, 202651-20028 contacts →

Exact match

“Trafo Power & Electricals Pvt.Ltd.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
8Exact matchJaipur, IndiaHQ recorded Nov 2, 2026201-50026 contacts →

Exact match

“UMANG BOARDS, is the one of the India`s leading technology companies established in 2001, Umang Boards successfully developed manufacturing of most competitive and advanced…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
9Exact matchHyderabad, IndiaHQ recorded Nov 2, 202651-20020 contacts →

Exact match

“Transguard Electrical Systems is a dynamic, research oriented organisation bringing innovative products and technologies to the transformer industry.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
10Exact matchJaipur, IndiaHQ recorded Nov 2, 202651-20014 contacts →

Exact match

“At Pristine Technologies & Industries, we specialize in the manufacturing and export of gaskets and insulation materials for electrical oil-filled transformers.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
11Exact matchVishakapatnam, IndiaHQ recorded Nov 2, 202651-20014 contacts →

Exact match

“At Winwin Speciality Insulators Limited, we take pride in being at the forefront of cutting-edge technology in the world of Electro-Ceramic production.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
12Exact matchVadodara, IndiaHQ recorded Nov 2, 202611-5013 contacts →

Exact match

“Micro-Mech Engineers, based in Gujarat, India, is engaged in the design and manufacturing of high-quality engineering and electrical products.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
13Exact matchNew Delhi, IndiaHQ recorded Nov 2, 202611-5012 contacts →

Exact match

“NDL is one of the leading company in India expertise in Transformer Oil testing and analysis services.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
14Exact matchKadi, IndiaHQ recorded Nov 2, 202611-5011 contacts →

Exact match

“Rishabh Technologies Pvt.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
15Exact matchHyderabad, IndiaHQ recorded Nov 2, 202611-506 contacts →

Exact match

“Epoxy Terminal & Equipment Pvt.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
16Exact matchPune, IndiaHQ recorded Nov 2, 202651-2004 contacts →

Exact match

“Since 2013, its inception as registered company in less than year time MSC TRANSFORMERS developed and proven its technical strength, financial capability and ability to complete…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
17Exact matchVadodara, IndiaHQ recorded Nov 2, 20261-103 contacts →

Exact match

“VISION EXIM is a reliable source of components for power and infrastructure industries, based at Vadodara, an electrical hub of India.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
18Exact matchBangalore, IndiaHQ recorded Nov 2, 202651-2001 contacts →

Exact match

“Suppliers of DAKSHIN TRANSFORMER OIL MULTI STAGE GAS EXTRACTOR, D-TOMGET,MODEL:1207 for Dissolved Gas Analysis of Transformer Oil.We also supply Transformer Oil Sampling Tubes in…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase

Showing 18 of 199 transformer oil or insulating oil suppliers based in India

See the full list, filter by size, metro and specialty, and access 93 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Transformer oil or insulating oil suppliers based in India at a glance

As of Nov 2, 2026
3.5%Verified-email coverage
13.3Average contacts per company
11-50Median size (employees)
7.5%Largest-city concentration · Vadodara
Nov 2, 2026Page data refreshed

Companies by employee count

1-10
46
11-50
59
51-200
65
201-500
22
501-1,000
4
1,001-5,000
1
5,001-10,000
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 199 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 “transformer oil or insulating oil suppliers” 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 93 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 2, 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 “transformer oil or insulating oil suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many transformer oil or insulating oil suppliers are there based in India?

RevenueBase identified 199 company matches for transformer oil or insulating oil suppliers 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?

Vijai Electricals Limited, Hyderabad tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most transformer oil or insulating oil suppliers?

Vadodara leads with 15 company records, followed by Bangalore (14) and Jaipur (13).

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 93 professional contacts with verified work emails tracked across these 199 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 2, 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.