Company lists · Data refreshed September 2026

Top 25 Offshore environmental consulting based in Indonesia

RevenueBase identified 179 offshore environmental consulting headquartered in Indonesia as of September 2026 and tracks 3,769 professional contacts across them, including 303 with verified work emails. Jakarta is the largest hub.

This list covers offshore environmental consulting 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 20, 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 20, 2026 86% judged on-target in blind review
179Companies
3,769Contacts tracked
303Verified emails
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The 25 largest offshore environmental consulting based in Indonesia

Ranked by team size
Top 25 of 179 offshore environmental consulting based in Indonesia, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to offshore environmental consulting: 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 evidenceKota Batam, IndonesiaHQ checked Sep 20, 20261,001-5,000609 contacts →

Indirect evidence

“Engineering Our Future Together”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceJakarta, IndonesiaHQ checked Sep 20, 202651-200339 contacts →

Partial evidence

“Java Offshore, established in 2010, is a leading independent Offshore Services Contractor providing a range of Geophysical, Geotechnical and Subsea related solutions to marine…”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceBandung, IndonesiaHQ checked Sep 20, 2026201-500255 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceCentral Jakarta, IndonesiaHQ checked Sep 20, 2026n/a249 contacts →

Indirect evidence

“PT.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceJakarta Selatan, IndonesiaHQ checked Sep 20, 202651-200152 contacts →

Indirect evidence

“Bintang Subsea - a DeepOcean Company - is a technology-driven, independent solution provider in the ocean space.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceJakarta, IndonesiaHQ checked Sep 20, 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 20, 2026
7Indirect evidenceTangerang Selatan, IndonesiaHQ checked Sep 20, 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 20, 2026
8Partial evidenceBandung, IndonesiaHQ checked Sep 20, 202651-20047 contacts →

Partial evidence

“Ganeca Environmental Services was established in early 2014, located in Bandung.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceJakarta Selatan, IndonesiaHQ checked Sep 20, 202651-20042 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceIndonesiaHQ checked Sep 20, 202651-20035 contacts →

Indirect evidence

“PT.”

Source: RevenueBase Database · checked Sep 20, 2026
11Strong evidenceBogor (kab.), IndonesiaHQ checked Sep 20, 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 20, 2026
12Partial evidenceBogor, IndonesiaHQ checked Sep 20, 202651-20027 contacts →

Partial evidence

“Hatfield is a pioneer in the field of environmental services in Indonesia, with our first local office established in 1990 in Bogor, West Java.”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceSurabaya, IndonesiaHQ checked Sep 20, 202611-5027 contacts →

Partial 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 20, 2026
14Strong evidenceKabupaten Badung, IndonesiaHQ checked Sep 20, 202611-5025 contacts →

Strong evidence

“Sustainability and Resilience (su-re.co) is a newly established environmental consulting company based in Bali, Indonesia.”

Source: RevenueBase Database · checked Sep 20, 2026
15Partial evidenceBandung, IndonesiaHQ checked Sep 20, 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 20, 2026
16Indirect evidenceJakarta Selatan, IndonesiaHQ checked Sep 20, 202611-5025 contacts →

Indirect evidence

“Professional consultant for Solar PV, Oil and Gas, & Subsea Projects”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceJakarta, IndonesiaHQ checked Sep 20, 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 20, 2026
18Partial evidenceBekasi, IndonesiaHQ checked Sep 20, 202611-5019 contacts →

Partial evidence

“Perusahaan yang bergerak di Environmental, yang meliputi HSE Consultant & Tranning Service, Online water monitoring, Environmental permitting, AMDAL/UKL/UPL dan Trading…”

Source: RevenueBase Database · checked Sep 20, 2026
19Strong evidenceSleman Yogyakarta, IndonesiaHQ checked Sep 20, 20261-1018 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceJakarta Selatan, IndonesiaHQ checked Sep 20, 202611-5012 contacts →

Indirect evidence

“PT.”

Source: RevenueBase Database · checked Sep 20, 2026
21Partial evidenceJakarta Selatan, IndonesiaHQ checked Sep 20, 20261-1011 contacts →

Partial evidence

“Ekologika is a emerging company providing innovative solutions to the most critical challenges in environmental survey or study, and sustainable development.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceJakarta Selatan, IndonesiaHQ checked Sep 20, 202611-5011 contacts →

Indirect evidence

“PT.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceBali, IndonesiaHQ checked Sep 20, 202611-5010 contacts →

Indirect evidence

“PT.”

Source: RevenueBase Database · checked Sep 20, 2026
24Strong evidenceSemarang, IndonesiaHQ checked Sep 20, 20261-108 contacts →

Strong evidence

“PT Cakrawala Buwana Lestarindo is a company that provides environmental consulting services established by professionals in their fields.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceJakarta Selatan, IndonesiaHQ checked Sep 20, 202611-507 contacts →

Indirect evidence

“PT WIS Energi Nusantara, officially incorporated in November 2013.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 179 offshore environmental consulting based in Indonesia

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Offshore environmental consulting based in Indonesia at a glance

As of Sep 20, 2026
8.0%Verified-email coverage
21.1Average contacts per company
11-50Median size (employees)
10.6%Largest-city concentration · Jakarta
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
59
11-50
79
51-200
30
201-500
7
1,001-5,000
3
10001+
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 179 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 offshore environmental consulting, 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 “offshore environmental consulting”. 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 offshore environmental consulting), 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 offshore environmental consulting, 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, 303 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 20, 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 offshore environmental consulting, 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 offshore environmental consulting are there based in Indonesia?

RevenueBase identified 179 offshore environmental consulting 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 Smoe Indonesia, headquartered in Kota Batam, tops this list with the largest team on record.

Which city has the most offshore environmental consulting?

Jakarta leads with 19 headquartered companies, followed by Jakarta Selatan Dki Jakarta (14) and Dki Jakarta (12).

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 303 verified decision-maker contacts tracked across these 179 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 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 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.