Company lists · Data refreshed September 2026

Top 25 Energy efficiency contractors based in India

Name: Energy efficiency contractors based in India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 164 companies tracked

RevenueBase identified 164 energy efficiency contractors headquartered in India as of September 2026 and tracks 1,455 professional contacts across them, including 318 with verified work emails. Pune is the largest hub.

This list covers energy efficiency contractors 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 16, 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 16, 2026 86% judged on-target in blind review

164Companies

1,455Contacts tracked

318Verified emails

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The 25 largest energy efficiency contractors based in India

Ranked by team size

Top 25 of 164 energy efficiency contractors based in India, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy efficiency contractors: 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	D2o	Strong evidence	Jaipur, IndiaHQ checked Sep 16, 2026	51-200	217 contacts →
	Strong evidence “Design2Occupancy Services LLP (D2O) is a leading organization providing a platform and solutions in Energy Efficiency Analysis and Energy Code Compliances, Climate Change…” Source: RevenueBase Database · checked Sep 16, 2026
2	Kamal Cogent Energy Pvt. LTD	Partial evidence	Jaipur, IndiaHQ checked Sep 16, 2026	11-50	74 contacts →
	Partial evidence “Kamal Cogent Energy Pvt.” Source: RevenueBase Database · checked Sep 16, 2026
3	Energeia	Strong evidence	New Delhi, IndiaHQ checked Sep 16, 2026	11-50	56 contacts →
	Strong evidence “Energeia is working on the frontlines of sustainable development to transition energy and emission-intensive factories and commercial buildings into cleaner and energy-efficient…” Source: RevenueBase Database · checked Sep 16, 2026
4	See-Tech Solutions Pvt. LTD	Strong evidence	Nagpur, IndiaHQ checked Sep 16, 2026	11-50	56 contacts →
	Strong evidence “SEE-Tech Solutions is an Energy Service Company (ESCo) engaged in delivering energy cost reduction through state-of-the-art Energy Efficient (EE) technologies with attractive ROI…” Source: RevenueBase Database · checked Sep 16, 2026
5	Consergy Systems And Technologies LLP	Partial evidence	Mumbai, IndiaHQ checked Sep 16, 2026	11-50	39 contacts →
	Partial evidence “Consergy Systems and Technologies LLP is an energy savings & environmental solutions provider for centrally air-conditioned Buildings with a view to reduce the carbon footprint on…” Source: RevenueBase Database · checked Sep 16, 2026
6	Aerosys Hvac Solutions	Partial evidence	Pune, IndiaHQ checked Sep 16, 2026	11-50	36 contacts →
	Partial evidence “Aerosys is a young, dynamic, enchanting Organization to Define, Design and Execute Energy Saving solutions to operational Chiller plants.” Source: RevenueBase Database · checked Sep 16, 2026
7	Sustenergy Foundation	Partial evidence	Kottayam, IndiaHQ checked Sep 16, 2026	n/a	32 contacts →
	Partial evidence “Sustenergy Foundation - promoters of Sustainable energy conservation through cost effective measures.” Source: RevenueBase Database · checked Sep 16, 2026
8	Yantra Harvest Energy Pvt. LTD	Partial evidence	Pune, IndiaHQ checked Sep 16, 2026	11-50	28 contacts →
	Partial evidence “Yantra Harvest is committed to provide unique and innovative energy saving solutions under ESCO to customers and they are cost effective.” Source: RevenueBase Database · checked Sep 16, 2026
9	Bigeta Energy Solutions	Partial evidence	Bengaluru, IndiaHQ checked Sep 16, 2026	11-50	27 contacts →
	Partial evidence “Bigeta Energy Solutions is an ISO 9001:2015 certified Energy & Sustainability Management company.” Source: RevenueBase Database · checked Sep 16, 2026
10	Enspar Sustainability PVT Ltd. Enspar Energy Solutions P LTD	Partial evidence	Bangalore, IndiaHQ checked Sep 16, 2026	11-50	16 contacts →
	Partial evidence “ENSPAR offers a unique range of Energy Saving Solutions that could save you up to 40% of your energy costs.” Source: RevenueBase Database · checked Sep 16, 2026
11	Scoop Energy Solutions PVT LTD	Strong evidence	Pune, IndiaHQ checked Sep 16, 2026	1-10	16 contacts →
	Strong evidence “We provide solutions for improving energy efficiency in Buildings, Factories, Hotels, Hospitals, Airports, Malls and more.” Source: RevenueBase Database · checked Sep 16, 2026
12	Athul Energy Consultants Pvt. LTD	Partial evidence	Thrissur, IndiaHQ checked Sep 16, 2026	1-10	15 contacts →
	Partial evidence “Founded in 2008 as Athul Engineering Systems & Energy Consultants (AESEC) comprise of a group of professionals who have strong background in engineering sector.” Source: RevenueBase Database · checked Sep 16, 2026
13	Namdhari ECO Energies P LTD	Strong evidence	Connaught Place, IndiaHQ checked Sep 16, 2026	1-10	14 contacts →
	Strong evidence “Eco Energies specializes in solving energy efficiency challenges in today’s highly demanding environments.” Source: RevenueBase Database · checked Sep 16, 2026
14	Stiledivita India PVT LTD	Partial evidence	Bengaluru, IndiaHQ checked Sep 16, 2026	1-10	13 contacts →
	Partial evidence “Stile Di Vita is a leading Energy Management consulting company, offering Technology Solutions and concepts towards Healthy Living for Integrated Residential & Commercial spaces.” Source: RevenueBase Database · checked Sep 16, 2026
15	Zenith Energy Services PVT LTD	Indirect evidence	Hyderabad, IndiaHQ checked Sep 16, 2026	1-10	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
16	Encosym Solutions Private Limited	Strong evidence	Thane, IndiaHQ checked Sep 16, 2026	11-50	11 contacts →
	Strong evidence “ENCOSYM Solutions Private Limited is a leading ESCO (Energy Services Company) committed to delivering innovative, end-to-end energy solutions that drive efficiency, conservation…” Source: RevenueBase Database · checked Sep 16, 2026
17	Green Flame PVT Ltd, India	Partial evidence	Pune, IndiaHQ checked Sep 16, 2026	11-50	11 contacts →
	Partial evidence “We help organizations to save energy cost up to 40% year on year.” Source: RevenueBase Database · checked Sep 16, 2026
18	Paul Shantanu Engineering Pvt. LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 16, 2026	11-50	10 contacts →
	Indirect evidence “Paul Shantanu Engineering Pvt.” Source: RevenueBase Database · checked Sep 16, 2026
19	ASG Energy Solutions PVT LTD	Partial evidence	Bangalore, IndiaHQ checked Sep 16, 2026	11-50	6 contacts →
	Partial evidence “ASG ENERGY SOLUTIONS PVT LTD offering complete energy saving solutions with our products and services implementing in effort of energy conservation and sustainability, helping to…” Source: RevenueBase Database · checked Sep 16, 2026
20	SENSS	Strong evidence	Mumbai, IndiaHQ checked Sep 16, 2026	11-50	6 contacts →
	Strong evidence “Sharp Energy Saving Solutions is the identity of the energy efficiency and green infrastructure solutions by Sharp Power and Communication Equipments (India) Pvt.” Source: RevenueBase Database · checked Sep 16, 2026
21	Mark Electricals	Indirect evidence	Surat, IndiaHQ checked Sep 16, 2026	1-10	6 contacts →
	Indirect evidence “Mark Electricals provides you with all the services regarding, power conservation, reduced electricity bills, safety audits, pf improvment.” Source: RevenueBase Database · checked Sep 16, 2026
22	Neev Energy And Sustainable Solutions	Partial evidence	Ahmedabad, IndiaHQ checked Sep 16, 2026	1-10	5 contacts →
	Partial evidence “Established in 2018, Neev Energy and Sustainable Solutions is an energy consultancy firm based out in Ahmedabad.” Source: RevenueBase Database · checked Sep 16, 2026
23	Alenso Energy	Partial evidence	Kochi, IndiaHQ checked Sep 16, 2026	1-10	5 contacts →
	Partial evidence “Alenso Energy offers services that identify opportunities for optimisation of resources, particularly pertaining to energy.” Source: RevenueBase Database · checked Sep 16, 2026
24	Quasar Enviro Solutions PVT LTD	Partial evidence	New Delhi, IndiaHQ checked Sep 16, 2026	1-10	4 contacts →
	Partial evidence “Quasar Enviro Solutions “Energy Environment Nexus” QuasaR Enviro is a dynamic new company with a sharp focus on using technology for customised, practical solutions aimed at…” Source: RevenueBase Database · checked Sep 16, 2026
25	Power Norm	Partial evidence	Solapur, IndiaHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “Power Norm provides an energy conservation solution that embodies new paradigms, principles, and inexpensive diagnostics to produce sizeable electricity cost savings in commercial…” Source: RevenueBase Database · checked Sep 16, 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: energy efficiency contractors. 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 energy efficiency contractors.
Partial evidence: Its own public description names part of energy efficiency contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy efficiency contractors. 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 164 energy efficiency contractors based in India

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Energy efficiency contractors based in India at a glance

As of Sep 16, 2026

21.9%Verified-email coverage

8.9Average contacts per company

1-10Median size (employees)

9.1%Largest-city concentration · Pune

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 164 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 energy efficiency contractors, 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 “energy efficiency contractors”. 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 energy efficiency contractors), 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 energy efficiency contractors, 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, 318 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 16, 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 energy efficiency contractors, 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 energy efficiency contractors are there based in India?

RevenueBase identified 164 energy efficiency contractors 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?

D2o, headquartered in Jaipur, tops this list with the largest team on record.

Which city has the most energy efficiency contractors?

Pune leads with 15 headquartered companies, followed by Hyderabad (10) and New Delhi (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 318 verified decision-maker contacts tracked across these 164 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 16, 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.