Company lists · Data refreshed September 2026

Top 17 Hydrogeological consulting firms based in Indonesia

RevenueBase identified 133 hydrogeological consulting firms headquartered in Indonesia as of September 2026 and tracks 2,072 professional contacts across them, including 107 with verified work emails. Jakarta is the largest hub.

This list covers hydrogeological consulting firms headquartered in Indonesia, 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
133Companies
2,072Contacts tracked
107Verified emails
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The 17 largest hydrogeological consulting firms based in Indonesia

Ranked by team size
Top 17 of 133 hydrogeological consulting firms based in Indonesia, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to hydrogeological 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
1Indirect evidenceBandung, IndonesiaHQ checked Sep 14, 2026201-500255 contacts →

Indirect evidence

“KWARSA HEXAGON is an independent consultant company founded in the year of 1982.”

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidenceJakarta, IndonesiaHQ checked Sep 14, 202651-20049 contacts →

Indirect evidence

“Oryx maintains a comprehensive inventory of national and expatriate consultants to support the professional expertise essential for today’s high standard requirements in a highly…”

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceTangerang Selatan, IndonesiaHQ checked Sep 14, 202651-20048 contacts →

Indirect evidence

“PT Hydrocore an Indonesian company was established in 2006, have many experiences in geotechnical work (including Resistivity Survey) in Indonesia.”

Source: RevenueBase Database · checked Sep 14, 2026
4Partial evidenceJakarta Selatan, IndonesiaHQ checked Sep 14, 202651-20038 contacts →

Partial evidence

“KAGARA is an integrated geology, mining, and environmental consulting firm providing end-to-end technical solutions across the mining value chain.”

Source: RevenueBase Database · checked Sep 14, 2026
5Partial evidenceSouth Jakarta, IndonesiaHQ checked Sep 14, 202651-20036 contacts →

Partial evidence

“PT Peakglobal Resources Consulting (PEAKGLOBAL) is a international business and technical consulting firm headquartered out of Jakarta Indonesia with branch offices in Singapore…”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceBandung, IndonesiaHQ checked Sep 14, 202651-20035 contacts →

Indirect evidence

“PT.”

Source: RevenueBase Database · checked Sep 14, 2026
7Strong evidenceBogor (kab.), IndonesiaHQ checked Sep 14, 202651-20030 contacts →

Strong evidence

“PT Geo Sinergi Utama, through its brand GeoSynergy Solution, is a Jakarta-based engineering and consulting company specializing in geotechnical, hydrogeological, environmental…”

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceSurabaya, IndonesiaHQ checked Sep 14, 202611-5027 contacts →

Indirect evidence

“Rizqu Konsultan is a mining, environmental, and water resources consultancy providing integrated, data-driven solutions to support smarter and more responsible mining operations.”

Source: RevenueBase Database · checked Sep 14, 2026
9Partial evidenceBandung, IndonesiaHQ checked Sep 14, 202611-5025 contacts →

Partial evidence

“Reka Elang Inovasi is a consulting firm specializing in engineering services in the oil and gas sector.”

Source: RevenueBase Database · checked Sep 14, 2026
10Partial evidenceSouth Jakarta, IndonesiaHQ checked Sep 14, 202611-5024 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
11Indirect evidenceJakarta, IndonesiaHQ checked Sep 14, 202651-20023 contacts →

Indirect evidence

“GDA Group of Companies is a national private company in the field of research-based geology consultancy mainly in oil and gas industry.”

Source: RevenueBase Database · checked Sep 14, 2026
12Indirect evidenceJakarta Selatan, IndonesiaHQ checked Sep 14, 202651-20020 contacts →

Indirect evidence

“PT Mining One Indonesia merupakan perusahaan jasa konsultasi yang fokus dalam memberikan solusi dan dukungan teknis kepada perusahaan eksplorasi dan pertambangan.”

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceTangerang Selatan, IndonesiaHQ checked Sep 14, 202611-5020 contacts →

Indirect evidence

“WHO WE ARE?”

Source: RevenueBase Database · checked Sep 14, 2026
14Partial evidenceJakarta, IndonesiaHQ checked Sep 14, 202611-5014 contacts →

Partial evidence

“SMG Consultants (SMGC) are leaders in the fields of geological and mine planning consulting and in providing advisory services to the global minerals industry.”

Source: RevenueBase Database · checked Sep 14, 2026
15Indirect evidenceKota Makassar, IndonesiaHQ checked Sep 14, 202611-5013 contacts →

Indirect evidence

“Mineral resources and minerals are assets that are limited and non-renewable in the process of utilization.”

Source: RevenueBase Database · checked Sep 14, 2026
16Indirect evidenceJakarta, IndonesiaHQ checked Sep 14, 202611-5011 contacts →

Indirect evidence

“PT MINEVESTING KONSULTAN INDONESIA (MIKA) Is a company part of MINEVESTING GROUP (PT MINEVESTING RESOURCES INDONESIA| PT.MRI ), a holding end-to-end that related to the mining…”

Source: RevenueBase Database · checked Sep 14, 2026
17Indirect evidenceBali, IndonesiaHQ checked Sep 14, 202611-5010 contacts →

Indirect evidence

“PT.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 17 of 133 hydrogeological consulting firms based in Indonesia

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Hydrogeological consulting firms based in Indonesia at a glance

As of Sep 14, 2026
5.2%Verified-email coverage
15.6Average contacts per company
11-50Median size (employees)
6.8%Largest-city concentration · Jakarta
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
32
11-50
73
51-200
23
201-500
5

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 133 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 hydrogeological 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 Indonesia whose own description of what they do matches “hydrogeological 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 hydrogeological 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 hydrogeological consulting firms, and records with no verified work email. Companies headquartered outside Indonesia 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, 107 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 hydrogeological 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 hydrogeological consulting firms are there based in Indonesia?

RevenueBase identified 133 hydrogeological consulting firms headquartered in Indonesia 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?

Pt. Kwarsa Hexagon, headquartered in Bandung West Java, tops this list with the largest team on record.

Which city has the most hydrogeological consulting firms?

Jakarta leads with 9 headquartered companies, followed by Dki Jakarta (7) and Bandung West Java (6).

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 107 verified decision-maker contacts tracked across these 133 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.