Company lists · Data refreshed September 2026

Top 13 Power plant maintenance services based in India

RevenueBase identified 223 power plant maintenance services headquartered in India as of September 2026 and tracks 10,159 professional contacts across them, including 327 with verified work emails. Hyderabad is the largest hub.

This list covers power plant maintenance services 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 20, 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 20, 2026 86% judged on-target in blind review
223Companies
10,159Contacts tracked
327Verified emails
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The 13 largest power plant maintenance services based in India

Ranked by team size
Top 13 of 223 power plant maintenance services based in India, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to power plant maintenance services: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceUp, IndiaHQ checked Sep 20, 2026501-1,000632 contacts →

Strong evidence

“Our Vision: To provide world class solutions for the renovation and modernization of power plants & other related businesses areas whilst improving our clients environmental…”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceChennai, IndiaHQ checked Sep 20, 2026501-1,000510 contacts →

Partial evidence

“Toshiba JSW Power Systems Private Limited (Toshiba JSW) is a joint venture between Japan's Toshiba Group and India's JSW Group.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceKolkata, IndiaHQ checked Sep 20, 20265,001-10,000331 contacts →

Partial evidence

“While we keep on hearing about non availability of coal from Coal India leading to increase in power cost due to procurement of imported coal, we rarely speak about coal logistic…”

Source: RevenueBase Database · checked Sep 20, 2026
4Strong evidenceNavi Mumbai, IndiaHQ checked Sep 20, 202651-20083 contacts →

Strong evidence

“consultants,service providers,operation & maintenance,project executors,spare part suppliers,reconditioning agents for heavy duty diesel/gas based power plants in india & abroad”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceChennai, IndiaHQ checked Sep 20, 2026201-50072 contacts →

Indirect evidence

“AVR O&M Services (P) Limited, established in 2021 in Chennai, Tamil Nadu, is spearheaded by an ex-Promoter/Director of ENMAS o&m services pvt ltd, along with the core team from…”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceMumbai, IndiaHQ checked Sep 20, 202651-20057 contacts →

Indirect evidence

“DIATECH was founded in 1990 by Mr.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceBhilai, IndiaHQ checked Sep 20, 2026501-1,00039 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
8Strong evidenceNadiad, IndiaHQ checked Sep 20, 2026201-50023 contacts →

Strong evidence

“Gupta Industrial Maintenance Services (GIMS) is a leading engineering services company providing specialized maintenance solutions for thermal power plants, renewables, and other…”

Source: RevenueBase Database · checked Sep 20, 2026
9Strong evidenceNoida, IndiaHQ checked Sep 20, 20261,001-5,00022 contacts →

Strong evidence

“We are a diverse organization involved in providing comprehensive operation and maintenance, of Power Plants, Steel Plants, Aluminum, Zinc, Carbon Plants Mines, Cement Plant etc.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceVadodara, IndiaHQ checked Sep 20, 2026201-50018 contacts →

Indirect evidence

“At Zero Discharge Systems we have always believed that it is very easy to design and sell equipment, however the crux lies in operating and maintaining the equipment at the…”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceVapi, IndiaHQ checked Sep 20, 202651-2008 contacts →

Partial evidence

“Yash Engineering has emerged as a pacesetter and leader in the Electrical Construction & Maintenance field since industry realized that a single source turn-key electrical group…”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceIndiaHQ checked Sep 20, 202611-507 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
13Strong evidenceBangalore, IndiaHQ checked Sep 20, 20261-103 contacts →

Strong evidence

“AFILA Engineering Solutions LLP includes and provides the solutions for Turnkey Engineering Project Services & Operation and Maintenance Services in Thermal Power Plants, Captive…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 13 of 223 power plant maintenance services based in India

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Power plant maintenance services based in India at a glance

As of Sep 20, 2026
3.2%Verified-email coverage
45.6Average contacts per company
51-200Median size (employees)
6.7%Largest-city concentration · Hyderabad
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
45
11-50
65
51-200
64
201-500
18
501-1,000
16
1,001-5,000
9
5,001-10,000
3
10001+
2

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 223 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 power plant maintenance services, 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 “power plant maintenance services”. 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 power plant maintenance services), 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 power plant maintenance services, 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, 327 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 20, 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 power plant maintenance services, 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 power plant maintenance services are there based in India?

RevenueBase identified 223 power plant maintenance services 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?

Ntpc GE Power Services Limited, headquartered in Up, tops this list with the largest team on record.

Which city has the most power plant maintenance services?

Hyderabad leads with 15 headquartered companies, followed by Chennai (11) and Mumbai (10).

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 327 verified decision-maker contacts tracked across these 223 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 20, 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.