Company lists · Data refreshed September 2026

Top 25 Energy efficiency consultants based in India

RevenueBase identified 232 energy efficiency consultants headquartered in India as of September 2026 and tracks 2,342 professional contacts across them, including 549 with verified work emails. Pune is the largest hub.

This list covers energy efficiency consultants 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
232Companies
2,342Contacts tracked
549Verified emails
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The 25 largest energy efficiency consultants based in India

Ranked by team size
Top 25 of 232 energy efficiency consultants 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 consultants: 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 evidenceJaipur, IndiaHQ checked Sep 16, 202651-200217 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
2Partial evidenceBengaluru, IndiaHQ checked Sep 16, 202651-200174 contacts →

Partial evidence

“LEAD Consultancy & Engineering Services (India) Private Limited (LCES) has been started by a team of qualified professionals with vast experience and expertise in the areas of…”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceJaipur, IndiaHQ checked Sep 16, 2026501-1,000144 contacts →

Partial evidence

“Greenfinch Real Estate Engineers and Consultants Pvt.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceMumbai, IndiaHQ checked Sep 16, 202651-20084 contacts →

Indirect evidence

“Idam Infrastructure Advisory Pvt.”

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceJaipur, IndiaHQ checked Sep 16, 202611-5074 contacts →

Partial evidence

“Kamal Cogent Energy Pvt.”

Source: RevenueBase Database · checked Sep 16, 2026
6Strong evidenceNew Delhi, IndiaHQ checked Sep 16, 202611-5056 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
7Partial evidenceMumbai, IndiaHQ checked Sep 16, 202611-5039 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
8Partial evidencePune, IndiaHQ checked Sep 16, 202611-5036 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
9Partial evidenceKottayam, IndiaHQ checked Sep 16, 2026n/a32 contacts →

Partial evidence

“Sustenergy Foundation - promoters of Sustainable energy conservation through cost effective measures.”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceBengaluru, IndiaHQ checked Sep 16, 202611-5027 contacts →

Partial evidence

“Bigeta Energy Solutions is an ISO 9001:2015 certified Energy & Sustainability Management company.”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceMumbai, IndiaHQ checked Sep 16, 202611-5024 contacts →

Partial evidence

Energy Advisory Services Pvt.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceChennai, IndiaHQ checked Sep 16, 20261-1023 contacts →

Indirect evidence

“At Earthonomics, we work towards developing sustainable environments for homes and organizations.”

Source: RevenueBase Database · checked Sep 16, 2026
13Strong evidenceSector 33, IndiaHQ checked Sep 16, 202611-5022 contacts →

Strong evidence

“We at EnerGeo™ are a team of professionals with an expertise in “Energy Management To Improve Building Efficiency”.”

Source: RevenueBase Database · checked Sep 16, 2026
14Strong evidenceMumbai, IndiaHQ checked Sep 16, 202611-5021 contacts →

Strong evidence

“MP Ensystems Advisory Private Limited is a niche energy and environmental sector consultancy and advisory firm.”

Source: RevenueBase Database · checked Sep 16, 2026
15Partial evidenceSurat, IndiaHQ checked Sep 16, 202611-5021 contacts →

Partial evidence

“RECARE is established by team of techno-commercials with most relevant and vast experience in energy sector consulting.”

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidencePune, IndiaHQ checked Sep 16, 202611-5018 contacts →

Partial evidence

“RDT LLP is a forward-thinking consultancy firm specialising in Building Performance Analytics.”

Source: RevenueBase Database · checked Sep 16, 2026
17Partial evidencePune, IndiaHQ checked Sep 16, 20261-1018 contacts →

Partial evidence

“SHASHWAT is a Sustainability Advisory firm offering Green Building design assistance, Green building Certification Facilitation Services, Energy Simulations and Energy Auditing &…”

Source: RevenueBase Database · checked Sep 16, 2026
18Partial evidenceBangalore, IndiaHQ checked Sep 16, 202611-5016 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
19Partial evidenceAndheri West, IndiaHQ checked Sep 16, 202611-5016 contacts →

Partial evidence

“Sustainability Consultants

Source: RevenueBase Database · checked Sep 16, 2026
20Strong evidenceThrissur, IndiaHQ checked Sep 16, 20261-1015 contacts →

Strong 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
21Indirect evidenceChennai, IndiaHQ checked Sep 16, 202611-5015 contacts →

Indirect evidence

“CGS was established in the year 1992.”

Source: RevenueBase Database · checked Sep 16, 2026
22Strong evidenceConnaught Place, IndiaHQ checked Sep 16, 20261-1014 contacts →

Strong evidence

“Eco Energies specializes in solving energy efficiency challenges in today’s highly demanding environments.”

Source: RevenueBase Database · checked Sep 16, 2026
23Partial evidenceBengaluru, IndiaHQ checked Sep 16, 20261-1013 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
24Indirect evidenceHyderabad, IndiaHQ checked Sep 16, 20261-1013 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidencePune, IndiaHQ checked Sep 16, 202611-5011 contacts →

Partial evidence

“We help organizations to save energy cost up to 40% year on year.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 232 energy efficiency consultants based in India

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Energy efficiency consultants based in India at a glance

As of Sep 16, 2026
23.4%Verified-email coverage
10.1Average contacts per company
1-10Median size (employees)
6.9%Largest-city concentration · Pune
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
125
11-50
82
51-200
22
201-500
2
501-1,000
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 232 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 consultants, 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 consultants”. 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 consultants), 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 consultants, 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, 549 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 consultants, 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 consultants are there based in India?

RevenueBase identified 232 energy efficiency consultants 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 consultants?

Pune leads with 16 headquartered companies, followed by Mumbai (14) and New Delhi (13).

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 549 verified decision-maker contacts tracked across these 232 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.