Company lists · Data refreshed September 2026

Top 25 Energy efficiency consulting firms based in India

RevenueBase identified 304 energy efficiency consulting firms headquartered in India as of September 2026 and tracks 2,987 professional contacts across them, including 666 with verified work emails. Pune is the largest hub.

This list covers energy efficiency consulting firms 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 14, 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 14, 2026 86% judged on-target in blind review
304Companies
2,987Contacts tracked
666Verified emails
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The 25 largest energy efficiency consulting firms based in India

Ranked by team size
Top 25 of 304 energy efficiency consulting firms based in India, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to energy efficiency consulting firms: 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 14, 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 14, 2026
2Indirect evidenceBengaluru, IndiaHQ checked Sep 14, 202651-200174 contacts →

Indirect 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 14, 2026
3Indirect evidenceJaipur, IndiaHQ checked Sep 14, 2026501-1,000144 contacts →

Indirect evidence

“Greenfinch Real Estate Engineers and Consultants Pvt.”

Source: RevenueBase Database · checked Sep 14, 2026
4Strong evidenceNoida, IndiaHQ checked Sep 14, 202651-200143 contacts →

Strong evidence

“GreenTree Global is one of the leading Sustainability Consulting organisations providing Energy Efficiency & Climate Change Services like Integrated Sustainability Services…”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceMumbai, IndiaHQ checked Sep 14, 202651-20084 contacts →

Indirect evidence

“Idam Infrastructure Advisory Pvt.”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceChennai, IndiaHQ checked Sep 14, 202651-20080 contacts →

Indirect evidence

“Conserve Consultants Pvt.”

Source: RevenueBase Database · checked Sep 14, 2026
7Partial evidenceJaipur, IndiaHQ checked Sep 14, 202611-5074 contacts →

Partial evidence

“Kamal Cogent Energy Pvt.”

Source: RevenueBase Database · checked Sep 14, 2026
8Partial evidenceBangalore, IndiaHQ checked Sep 14, 2026201-50057 contacts →

Partial evidence

“Racanaa Energy is focused on helping commercial establishments achieve their objective of becoming sustainable from an energy and environmental standpoint.”

Source: RevenueBase Database · checked Sep 14, 2026
9Strong evidenceNew Delhi, IndiaHQ checked Sep 14, 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 14, 2026
10Partial evidenceMumbai, IndiaHQ checked Sep 14, 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 14, 2026
11Partial evidencePune, IndiaHQ checked Sep 14, 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 14, 2026
12Partial evidenceKottayam, IndiaHQ checked Sep 14, 2026n/a32 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
13Partial evidencePune, IndiaHQ checked Sep 14, 202611-5028 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 14, 2026
14Partial evidenceBengaluru, IndiaHQ checked Sep 14, 202611-5027 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
15Partial evidenceMumbai, IndiaHQ checked Sep 14, 202611-5024 contacts →

Partial evidence

Energy Advisory Services Pvt.”

Source: RevenueBase Database · checked Sep 14, 2026
16Indirect evidenceChennai, IndiaHQ checked Sep 14, 20261-1023 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
17Partial evidenceMumbai, IndiaHQ checked Sep 14, 202611-5021 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
18Strong evidenceSurat, IndiaHQ checked Sep 14, 202611-5021 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
19Indirect evidencePune, IndiaHQ checked Sep 14, 202611-5018 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
20Partial evidencePune, IndiaHQ checked Sep 14, 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 14, 2026
21Partial evidenceBangalore, IndiaHQ checked Sep 14, 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 14, 2026
22Partial evidenceJamnagar, IndiaHQ checked Sep 14, 202611-5016 contacts →

Partial evidence

“IZZI Business Services (IZZIBS) is a proficient consulting and implementation service provider since 2016.”

Source: RevenueBase Database · checked Sep 14, 2026
23Partial evidenceGurugram, IndiaHQ checked Sep 14, 202611-5016 contacts →

Partial evidence

“JB Power Consultants, an independent Renewable Energy and Decarbonization company can assist you on its journey to a sustainable, long-term application of renewable energy and…”

Source: RevenueBase Database · checked Sep 14, 2026
24Strong evidencePune, IndiaHQ checked Sep 14, 20261-1016 contacts →

Strong evidence

“We provide solutions for improving energy efficiency in Buildings, Factories, Hotels, Hospitals, Airports, Malls and more.”

Source: RevenueBase Database · checked Sep 14, 2026
25Indirect evidenceAndheri West, IndiaHQ checked Sep 14, 202611-5016 contacts →

Indirect evidence

“Sustainability Consultants”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 304 energy efficiency consulting firms based in India

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Energy efficiency consulting firms based in India at a glance

As of Sep 14, 2026
22.3%Verified-email coverage
9.8Average contacts per company
1-10Median size (employees)
7.2%Largest-city concentration · Pune
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
160
11-50
106
51-200
33
201-500
4
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 304 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 consulting firms, 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 consulting firms”. 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 consulting firms), 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 consulting firms, 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, 666 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 14, 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 consulting firms, 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 consulting firms are there based in India?

RevenueBase identified 304 energy efficiency consulting firms 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 consulting firms?

Pune leads with 22 headquartered companies, followed by New Delhi (21) and Chennai (19).

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 666 verified decision-maker contacts tracked across these 304 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 14, 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.