Company lists · Data refreshed September 2026

Top 9 Petroleum engineering companies based in China

Name: Petroleum engineering companies based in China
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 125 companies tracked

RevenueBase identified 125 company matches for petroleum engineering companies associated with China as of September 2026 and tracks 7,195 professional contacts across them, including 127 with verified work emails. Dongying is the largest hub.

This list covers company matches for petroleum engineering companies associated with China, 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 17, 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 17, 2026 How this list was built

125Companies

7,195Contacts tracked

127Verified emails

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The 9 largest petroleum engineering companies based in China

Ranked by team size

Top 9 of 125 company matches for petroleum engineering companies based in China, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Sinopec International Petroleum Service Corporation	Exact match	北京市, ChinaHQ recorded Sep 17, 2026	10001+	1,952 contacts →
	Exact match “Sinopec International Petroleum Service Corporation SSC” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	BGP	Exact match	Hebei, ChinaHQ recorded Sep 17, 2026	10001+	1,160 contacts →
	Exact match “BGP is one of the world's leading geophysical service companies, delivering a wide range of technologies, services and equipment to the oil and gas industry worldwide.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Yantai Cimc Raffles Offshore LTD	Exact match	Yantai, ChinaHQ recorded Sep 17, 2026	10001+	720 contacts →
	Exact match “Yantai CIMC Raffles Offshore Technology Group Co, Ltd.(“CIMC Raffles”) is a leading offshore engineering and high-end marine equipment group in China, with a strong focus on the…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Antonoil Ifms	Exact match	Beijing, ChinaHQ recorded Sep 17, 2026	1,001-5,000	521 contacts →
	Exact match “Anton Oilfield Services Group (hereinafter as “Anton”) is the world's leading integrated oilfield technology service company that provides clients with a full range of products…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Bomesc Offshore Engineering Company Limited	Exact match	Teda, ChinaHQ recorded Sep 17, 2026	5,001-10,000	167 contacts →
	Exact match “BOMESC Offshore Engineer Company Limited, known as BOMESC, was founded in 1996, Located at Tanggu by Bohai Bay in the Tianjin Economic-Technological Development Area (TEDA), which…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Richtech International Engineering	Exact match	上海市青浦区, ChinaHQ recorded Sep 17, 2026	51-200	72 contacts →
	Exact match “Shanghai Richtech Engineering Co, Ltd.(Stock Code: 832547; “RICHTECH” for short) is an international engineering service company featured by diversified business models and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Petro-Offshore Engineering	Exact match	Teda, ChinaHQ recorded Sep 17, 2026	51-200	11 contacts →
	Exact match “Engineering company specialized in offshore engineering including preliminary, detail, shop design and installation engineering for platforms and pipelines with offices in…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Colchis Petroconsulting	Exact match	Beijing, ChinaHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “Colchis PetroConsulting is an integrated E&P solutions provider with offices in Houston, Beijing and ChengDu.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	高恩船舶维护技术咨询上海有限公司	Exact match	上海, ChinaHQ recorded Sep 17, 2026	11-50	2 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 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 “petroleum engineering companies”. 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 9 of 125 petroleum engineering companies based in China

See the full list, filter by size, metro and specialty, and access 127 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Petroleum engineering companies based in China at a glance

As of Sep 17, 2026

1.8%Verified-email coverage

57.6Average contacts per company

11-50Median size (employees)

8.0%Largest-city concentration · Dongying

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for China, so it is reported there. Company counts and contact totals on this page are exact for China, over 125 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 China whose business descriptions match “petroleum engineering 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 127 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 17, 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 “petroleum engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many petroleum engineering companies are there based in China?

RevenueBase identified 125 company matches for petroleum engineering companies associated with China 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?

Sinopec International Petroleum Service Corporation tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most petroleum engineering companies?

Dongying leads with 10 company records, followed by Beijing (7) and Shang Hai Shi (3).

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 127 professional contacts with verified work emails tracked across these 125 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 17, 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.