Company lists · Data refreshed September 2026

Top 25 Decarbonization consultancies based in Indonesia

Name: Decarbonization consultancies based in Indonesia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 137 companies tracked

RevenueBase identified 137 company matches for decarbonization consultancies associated with Indonesia as of September 2026 and tracks 1,246 professional contacts across them, including 188 with verified work emails. Jakarta is the largest hub.

This list covers company matches for decarbonization consultancies associated with Indonesia, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

137Companies

1,246Contacts tracked

188Verified emails

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The 25 largest decarbonization consultancies based in Indonesia

Ranked by team size

Top 25 of 137 company matches for decarbonization consultancies based in Indonesia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Institute For Essential Services Reform Iesr	Exact match	Jakarta Selatan, IndonesiaHQ recorded Sep 28, 2026	51-200	100 contacts →
	Exact match “The Institute for Essential Services Reform (IESR) is a homegrown, prominent Indonesian think tank dedicated to accelerating the nation’s transition toward a low-carbon energy…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Fairatmos	Exact match	Jakarta Selatan, IndonesiaHQ recorded Sep 28, 2026	11-50	56 contacts →
	Exact match “Meet Fairatmos.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Ailesh	Exact match	Sleman, IndonesiaHQ recorded Sep 28, 2026	11-50	42 contacts →
	Exact match “Ailesh is dedicated to promoting sustainability through innovative, tailored solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	PT Peakglobal Resources Consulting Peakglobal	Exact match	South Jakarta, IndonesiaHQ recorded Sep 28, 2026	51-200	36 contacts →
	Exact match “PT Peakglobal Resources Consulting (PEAKGLOBAL) is a international business and technical consulting firm headquartered out of Jakarta Indonesia with branch offices in Singapore…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	PT Hexa Integra Electrica	Exact match	Jakarta Selatan, IndonesiaHQ recorded Sep 28, 2026	11-50	31 contacts →
	Exact match “hire was established on 8 of August 2008 with the strategic intent of improving the competitiveness of domestic resources in power sector.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Gaia Indonesia	Exact match	Jakarta Selatan, IndonesiaHQ recorded Sep 28, 2026	11-50	31 contacts →
	Exact match “Gaia Indonesia is a leading consultancy company specializing in sustainable commodities onforestry & palm oil sectors and in carbon project development on Nature & Technology…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Su-Re.co Sustainability & Resilience	Exact match	Kabupaten Badung, IndonesiaHQ recorded Sep 28, 2026	11-50	25 contacts →
	Exact match “Sustainability and Resilience (su-re.co) is a newly established environmental consulting company based in Bali, Indonesia.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	PT Abirama Prinsipa Indonesia	Exact match	Jakarta Selatan, IndonesiaHQ recorded Sep 28, 2026	11-50	25 contacts →
	Exact match “Professional consultant for Solar PV, Oil and Gas, & Subsea Projects” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Ecobuild Green Building Consultant	Exact match	Jakarta, IndonesiaHQ recorded Sep 28, 2026	11-50	21 contacts →
	Exact match “Ecobuild is a professional consulting firm specialized in green building practice founded on the mission to solve the climate-related issue through green & sustainable building.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Geoenergis	Exact match	Jakarta Selatan, IndonesiaHQ recorded Sep 28, 2026	11-50	21 contacts →
	Exact match “Geoenergis is an engineering and management consulting company in the field of energy and was officially established on November 5, 2020.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	TRI Hita Consulting	Exact match	Denpasar, IndonesiaHQ recorded Sep 28, 2026	11-50	20 contacts →
	Exact match “Tri Hita Consulting is a sustainability consulting firm based in Bali, serving both public and private sectors.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Synergy Efficiency Solutions	Exact match	Jakarta Pusat, IndonesiaHQ recorded Sep 28, 2026	11-50	18 contacts →
	Exact match “About Synergy Efficiency Solutions Synergy Efficiency Solutions is a company founded on the principles of integrity and loyalty.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Enthalphy Environergy Consulting	Exact match	Sleman Yogyakarta, IndonesiaHQ recorded Sep 28, 2026	1-10	18 contacts →
	Exact match “Enthalphy is an energy and environmental consulting firm that is committed to providing a positive impact through our services to achieve sustainability aspects, in terms of…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Trucarbon	Exact match	Jakarta, IndonesiaHQ recorded Sep 28, 2026	11-50	17 contacts →
	Exact match “We were founded in 2022 as TruClimate.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Sustainahaus	Exact match	South Jakarta, IndonesiaHQ recorded Sep 28, 2026	11-50	15 contacts →
	Exact match “Sustainahaus is a sustainability consultancy specialising in green building certification and ESG advisory across Asia Pacific.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Enercon Equipment Company	Exact match	Jakarta, IndonesiaHQ recorded Sep 28, 2026	11-50	15 contacts →
	Exact match “PT.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Bestari Sustainability	Exact match	South Jakarta, IndonesiaHQ recorded Sep 28, 2026	11-50	11 contacts →
	Exact match “Bestari Sustainability (PT Sumberdaya Dunia Lestari) is a private advisory and implementation partner to address critical challenges that the world must overcome in order to…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	NOL Karbon	Exact match	Jakarta, IndonesiaHQ recorded Sep 28, 2026	11-50	7 contacts →
	Exact match “Nol Karbon is a project developer specializing in carbon credits through planning, feasibility studies, carbon project implementation, carbon trading, and building a tech-based…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Mahardika Energy Partners	Exact match	Jakarta, IndonesiaHQ recorded Sep 28, 2026	1-10	5 contacts →
	Exact match “Mahardika's vision is centered on transformation, innovation, and sustainability.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Geni Buana Nusantara	Exact match	Jakarta Pusat, IndonesiaHQ recorded Sep 28, 2026	1-10	5 contacts →
	Exact match “Geni Energi is an engineering consultancy rooted in deep expertise and structured methodology.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	GEO Rumbia	Exact match	Jakarta Selatan, IndonesiaHQ recorded Sep 28, 2026	1-10	5 contacts →
	Exact match “We are an energy efficiency and sustainability consulting firm.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	GWA Design Technology	Exact match	Semarang, IndonesiaHQ recorded Sep 28, 2026	11-50	4 contacts →
	Exact match “Our Vision Become a consultant that prioritizes innovation and technology Our Mission We are committed to deliver qualified solution based on the principle of Science and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	PT Asian Delta Sagala	Exact match	Jakarta Selatan, IndonesiaHQ recorded Sep 28, 2026	1-10	2 contacts →
	Exact match “PT.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Tanah AIR Bentala	Exact match	Jakarta Selatan, IndonesiaHQ recorded Sep 28, 2026	1-10	2 contacts →
	Exact match “Perusahaan konsultan bidang pengembangan proyek dekarbonisasi sektor Energi dan FOLU” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Muller Karbon Kapital	Exact match	South Jakarta, IndonesiaHQ recorded Sep 28, 2026	51-200	1 contacts →
	Exact match “Muller Karbon Kapital Indonesia (Muller) is a company established in Indonesia in 2021.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “decarbonization consultancies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 137 decarbonization consultancies based in Indonesia

See the full list, filter by size, metro and specialty, and access 188 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Decarbonization consultancies based in Indonesia at a glance

As of Sep 28, 2026

15.1%Verified-email coverage

9.1Average contacts per company

11-50Median size (employees)

13.9%Largest-city concentration · Jakarta

Sep 28, 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 Indonesia, so it is reported there. Company counts and contact totals on this page are exact for Indonesia, over 137 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Indonesia whose business descriptions match “decarbonization consultancies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 188 professional contacts with verified work emails across the full matched dataset. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “decarbonization consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many decarbonization consultancies are there based in Indonesia?

RevenueBase identified 137 company matches for decarbonization consultancies associated with Indonesia as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Institute For Essential Services Reform Iesr tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most decarbonization consultancies?

Jakarta leads with 19 company records, followed by Dki Jakarta (13) and Jakarta Pusat (10).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 188 professional contacts with verified work emails tracked across these 137 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 SmartSearch, 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.