Company lists · Data refreshed September 2026
Top 25 Isolator manufacturers based in India
RevenueBase identified 379 isolator manufacturers headquartered in India as of September 2026 and tracks 4,022 professional contacts across them, including 462 with verified work emails. Hyderabad is the largest hub.
This list covers isolator manufacturers 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 30, 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.
The 25 largest isolator manufacturers based in India
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 281 contacts → | ||||
Indirect evidence “Largest Company in India for Clean Rooms on Turnkey Basis catering to requirements of Pharmaceuticals, Semionductor, Food & Beverage and Research Laboratories.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 235 contacts → | ||||
Partial evidence “Modern Insulators ltd is India’s largest manufacturer and exporter of equipment porcelain insulators, working closely with OEMs, Indian Railways, National and Regional Utilities…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 201 contacts → | ||||
Partial evidence “Klenzaids manufactures benchmark Aseptic, Bioclean and Containment equipment which are elemental to plants established by the pharmaceutical, biological, life science, healthcare…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 158 contacts → | ||||
Indirect evidence “Saint-Gobain India – Insulation Business, as part of the global Saint-Gobain Group, carries a legacy woven from innovation and purpose.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 144 contacts → | ||||
Indirect evidence “IAC Electricals Pvt.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 105 contacts → | ||||
Strong evidence “Schematic Engineering Industries manufacture world class specialized Isolator, Glove Box and Containment equipment conforming to cGMP standards for sectors such as the…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 79 contacts → | ||||
Indirect evidence “S&S Power (BSE Scrip Code 517273, NSE Symbol S & SPOWER), is a global engineering and technology group with over 60-year legacy.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 67 contacts → | ||||
Partial evidence “EPOXY HOUSE, Growth through Innovation, Manufacturer of switchgear and transformer products Product Range, Exporting to 50+ countries worldwide, 50+ Years of Experience.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 59 contacts → | ||||
Indirect evidence “Manufacturing company specialized in the production of thermal and acoustic flexible elastomeric insulation materials.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 59 contacts → | ||||
Indirect evidence “Viat is a part of a group of companies manufacturing transformer accessories in India for the last 50 years.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 54 contacts → | ||||
Partial evidence “In the field of Energy Conservation since 1993.> Subodhan is ISO 9001:2015 Certified Company.> High Quality Products.> One of the Complete In House Manufacturers of Oil Filled…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 54 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 50 contacts → | ||||
Indirect evidence “Electrical Insulation for rotating and static machines.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 46 contacts → | ||||
Partial evidence “Insulator And Electrical Company Manufacturer of 800 kva insulator, insulator & utrla high power insulator in Bhopal, Madhya Pradesh.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 37 contacts → | ||||
Indirect evidence “ELMAS, your trusted partner in the global transformer industry, delivering excellence for about 3 decades.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 31 contacts → | ||||
Partial evidence “CJI PORCELAIN is a manufacturer, supplier and exporter of electrical insulators in India.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 26 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 26 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 25 contacts → | ||||
Partial evidence “Company Profile Senapathy Whiteley is the flagship enterprise of the Senapathy Group and a pioneer manufacturer of insulation materials that are essential for the power supply and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 24 contacts → | ||||
Indirect evidence “Osna Electronics Pvt.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 23 contacts → | ||||
Indirect evidence “S&S Power Switchgear Equipment Limited (SSPSE) specialises in Medium Voltage (MV) and High Voltage (HV) Disconnectors.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 22 contacts → | ||||
Indirect evidence “Transguard Electrical Systems is a dynamic, research oriented organisation bringing innovative products and technologies to the transformer industry.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 19 contacts → | ||||
Indirect evidence “DDE is a leading enterprise engaged in designing, manufacturing, qualification and commissioning of sterile process systems.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 17 contacts → | ||||
Indirect evidence “Transmission Line Products (TLP), an ISO certified company, was established in 1977 to cater to the demand of Insulator Hardware Fittings and Accessories for Conductor and Earth…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 17 contacts → | ||||
Partial evidence “Alutix is a Prominent Manufacturer of Thermal Insulation in India.” Source: RevenueBase Database · checked Sep 30, 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: isolator manufacturers. 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 isolator manufacturers.
- Partial evidence
- Its own public description names part of isolator manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name isolator manufacturers. 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 379 isolator manufacturers based in India
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Isolator manufacturers based in India at a glance
As of Sep 30, 2026Companies by employee count
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 379 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 isolator manufacturers, 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 “isolator manufacturers”. 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 isolator manufacturers), 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 isolator manufacturers, 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, 462 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 30, 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.
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 isolator manufacturers, 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 isolator manufacturers are there based in India?
RevenueBase identified 379 isolator manufacturers 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?
Integrated Cleanroom Technologies Limited, headquartered in Hyderabad, tops this list with the largest team on record.
Which city has the most isolator manufacturers?
Hyderabad leads with 32 headquartered companies, followed by Bangalore (26) and Delhi (25).
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 462 verified decision-maker contacts tracked across these 379 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 30, 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.