Company lists · Data refreshed September 2026

Top 20 Geothermal exploration companies based in Indonesia

RevenueBase identified 106 company matches for geothermal exploration companies associated with Indonesia as of September 2026 and tracks 7,321 professional contacts across them, including 1,076 with verified work emails. Jakarta is the largest hub.

This list covers company matches for geothermal exploration companies 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 20, 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 20, 2026 How this list was built
106Companies
7,321Contacts tracked
1,076Verified emails
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The 20 largest geothermal exploration companies based in Indonesia

Ranked by team size
Top 20 of 106 company matches for geothermal exploration companies based in Indonesia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchGambir, IndonesiaHQ recorded Sep 20, 2026201-5001,242 contacts →

Exact match

“Indonesia Geothermal Company”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchSouth Jakarta, IndonesiaHQ recorded Sep 20, 20261,001-5,0001,200 contacts →

Exact match

“PT Pertamina Drilling Services Indonesia (Pertamina Drilling) was established on June 13th, 2008.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchJakarta Selatan, IndonesiaHQ recorded Sep 20, 20261,001-5,000590 contacts →

Exact match

“PT.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchJakarta Selatan, IndonesiaHQ recorded Sep 20, 2026201-500501 contacts →

Exact match

“PT Geo Dipa Energi (Persero) is a State-Owned Company specializing in Geothermal Energy”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchJakarta, IndonesiaHQ recorded Sep 20, 20261,001-5,000481 contacts →

Exact match

“PT Medco Energi Internasional Tbk (“MedcoEnergi”) is a leading Southeast Asian energy and natural resources company listed on the Indonesia Stock Exchange (MEDC-IDX).”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchJakarta Selatan, IndonesiaHQ recorded Sep 20, 2026201-500271 contacts →

Exact match

“Supreme Energy Group of Companies (SEML/SERD/SERB), a growing Multinational Energy Companies with its core business on renewable energy Geothermal Power Plant.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchJakarta Selatan, IndonesiaHQ recorded Sep 20, 202651-20080 contacts →

Exact match

“PT PLN Gas & Geothermal is a subsidiary of PT PLN (Persero) which was established on January 28, 2009 to carry out the development of geothermal aspect in Indonesia with a…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchJakarta, IndonesiaHQ recorded Sep 20, 202611-5072 contacts →

Exact match

“Welcome to PT OPAC Barata, your guide through the petroleum jungle, delivering a wide range of services tailored to the unique demands of the oil and gas, mining, and geothermal…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchJakarta, IndonesiaHQ recorded Sep 20, 202651-20035 contacts →

Exact match

“Puncakbaru Jayatama (PJ) is a highly accredited exploration company based in Indonesia.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchSouth Jakarta, IndonesiaHQ recorded Sep 20, 202611-5024 contacts →

Exact match

“Rigsis is a national private consulting company in Indonesia for the geothermal industry.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchJakarta Selatan, IndonesiaHQ recorded Sep 20, 202611-5021 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 20, 2026 · View company records in RevenueBase
12Exact matchTangerang Selatan, IndonesiaHQ recorded Sep 20, 202611-5020 contacts →

Exact match

“WHO WE ARE?”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchJakarta Selatan, IndonesiaHQ recorded Sep 20, 202611-5017 contacts →

Exact match

“PT Arka Data Pratama (Arka Data), founded in 2021, is a drilling technology and consultancy company committed to provide accessible geothermal, oil, and gas energy through…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchJakarta Timur, IndonesiaHQ recorded Sep 20, 202651-20014 contacts →

Exact match

“Prasadha Drilling Company first started in September 2017 and currently has 20+ clients throughout the Indonesian archipelago.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchBandung, IndonesiaHQ recorded Sep 20, 20261-1012 contacts →

Exact match

“ABOUT US PT.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchBabakan Madang, IndonesiaHQ recorded Sep 20, 202611-509 contacts →

Exact match

“Gemintang Prima Mineral provides a wide range of mineral exploration and mining services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchPalembang, IndonesiaHQ recorded Sep 20, 202611-506 contacts →

Exact match

“Geosriwijaya Nusantara (GN) was formed in early 2016.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchJakarta, IndonesiaHQ recorded Sep 20, 202611-504 contacts →

Exact match

“Early and Intermediate Exploration Solutions for Oil & Gas, Minerals, Geothermal or any subsurface structure that will give an indication of depth, position, and content that will…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchCilandak Timur, IndonesiaHQ recorded Sep 20, 202611-504 contacts →

Exact match

“ASHA MITRA NUSANTARA, perusahaan yang bergerak di bidang Drilling Balasting, Drilling Exploration, Drilling RS, Drilling Geothermal dan Catering”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchDki Jakarta, IndonesiaHQ recorded Sep 20, 202651-2001 contacts →

Exact match

“Incorporated in 2006 as a subsidiary of the distinguished Air Drilling Associates, PT Air Drilling swiftly emerged as a pioneering force in the drilling services sector.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 20 of 106 geothermal exploration companies based in Indonesia

See the full list, filter by size, metro and specialty, and access 1,076 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geothermal exploration companies based in Indonesia at a glance

As of Sep 20, 2026
14.7%Verified-email coverage
69.1Average contacts per company
11-50Median size (employees)
14.2%Largest-city concentration · Jakarta
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
16
11-50
48
51-200
21
201-500
9
501-1,000
5
1,001-5,000
6
5,001-10,000
1

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 106 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 “geothermal exploration companies” 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 1,076 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 20, 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 “geothermal exploration companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geothermal exploration companies are there based in Indonesia?

RevenueBase identified 106 company matches for geothermal exploration companies 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?

PT Pertamina Geothermal Energy TBK tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most geothermal exploration companies?

Jakarta leads with 15 company records, followed by Dki Jakarta (11) and Jakarta Selatan Dki Jakarta (5).

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 1,076 professional contacts with verified work emails tracked across these 106 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 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 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.