Company lists · Data refreshed September 2026

Top 25 Petroleum refinery engineers worldwide

RevenueBase identified 223 company matches for petroleum refinery engineers worldwide as of September 2026 and tracks 24,370 professional contacts across them, including 3,914 with verified work emails. The United States is the largest market and Tehran the largest hub.

This list covers company matches for petroleum refinery engineers worldwide, 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. Country and city lists for petroleum refinery engineers follow the table.

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
223Companies
24,370Contacts tracked
3,914Verified emails
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The 25 largest petroleum refinery engineers worldwide

Ranked by team size
Top 25 of 223 company matches for petroleum refinery engineers worldwide, 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 matchRabigh, Saudi ArabiaHQ recorded Sep 20, 20261,001-5,0003,005 contacts →

Exact match

“Rabigh Refining & Petrochemical Co- Petro Rabigh - was founded as a joint venture between Saudi Aramco and Sumitomo Chemical in 2005.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchPengerang, MalaysiaHQ recorded Sep 20, 20261,001-5,0001,396 contacts →

Exact match

“Pengerang Refining Company Sdn Bhd and Pengerang Petrochemical Sdn Bhd (collectively known as PRefChem) are two joint ventures formed from the strategic alliance of two of the…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchRawalpindi, PakistanHQ recorded Sep 20, 2026501-1,0001,270 contacts →

Exact match

“Attock Refinery Limited (ARL) is the pioneer and pacesetter in Pakistan’s petroleum refining sector.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchChennai, IndiaHQ recorded Sep 20, 20261,001-5,0001,194 contacts →

Exact match

“Chennai Petroleum Corporation Limited (CPCL) is a subsidiary of IOCL with world class refining technologies and a dominant presence in South India.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchDuqm, OmanHQ recorded Sep 20, 2026501-1,000997 contacts →

Exact match

“OQ8, a joint venture between Oman’s OQ Group and Kuwait’s Kuwait Petroleum International (KPI), represents a transformative force in the GCC’s oil refining sector.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchProspecton, South AfricaHQ recorded Sep 20, 2026501-1,000944 contacts →

Exact match

“SAPREF is a joint venture between Shell SA Refining and BP Southern Africa.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact match서울특별시, South KoreaHQ recorded Sep 20, 20261,001-5,000790 contacts →

Exact match

“GS 78 5.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchKarachi, PakistanHQ recorded Sep 20, 2026201-500543 contacts →

Exact match

“Pakistan Refinery Limited was incorporated in Pakistan as a public limited company in May 1960 and is quoted on the Karachi and Lahore Stock Exchanges.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchPriolo Gargallo, ItalyHQ recorded Sep 20, 20261,001-5,000469 contacts →

Exact match

“ISAB's refining, gasification and electricity cogeneration plants, included in the petrochemical of Priolo Gargallo (located in Sicily, between Catania and Syracuse), represent…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchGrangemouth, United KingdomHQ recorded Sep 20, 20261,001-5,000466 contacts →

Exact match

“Located at Grangemouth, some 40km west of Edinburgh, one of INEOS’ largest manufacturing sites directly employs c1500 highly skilled people.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchZarqa, JordanHQ recorded Sep 20, 20261,001-5,000452 contacts →

Exact match

“Jordan Petroleum Refinery Company Ltd (JPRC) A crude oil refinery founded in 1956, started production in 1961.the Refinery site is located in the city of Zarqa around 35 km east…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchLa Porte, TX, United StatesHQ recorded Sep 20, 20265,001-10,000419 contacts →

Exact match

“As part of the Quanta Services Family of Companies (NYSE: PWR)- Stronghold provides the safest, leanest, most efficient, quality solutions for the refinery, petrochemical and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchCairo, EgyptHQ recorded Sep 20, 2026501-1,000415 contacts →

Exact match

“Performing the activity of crude oil refining and high-quality petroleum products processing, for domestic and international markets.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchGdansk, PolandHQ recorded Sep 20, 20261,001-5,000359 contacts →

Exact match

“Rafineria Gdańska Sp.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchRegina, CanadaHQ recorded Sep 20, 20261,001-5,000352 contacts →

Exact match

“Fuel Your Career at the Co-op Refinery Complex.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchLavera, FranceHQ recorded Sep 20, 20261,001-5,000346 contacts →

Exact match

“Nous sommes un acteur majeur de l'énergie implanté sur le plus gros site pétrochimique et raffinage du sud de la France, au bord de la méditerranée.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchPort Dickson, MalaysiaHQ recorded Sep 20, 2026501-1,000317 contacts →

Exact match

“Hengyuan Refining Company Berhad (HRC), formerly known as Shell Refining Company (Federation of Malaya) Berhad (SRC), was incorporated in Malaysia on 19 September 1960.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchTehran, IranHQ recorded Sep 20, 20261,001-5,000303 contacts →

Exact match

“Aftab Oil Refining (Previously named as MTA Holding) was founded on December 29, 2007.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchMuang, ThailandHQ recorded Sep 20, 2026201-500275 contacts →

Exact match

“Star Petroleum Refining Public Company Limited (“SPRC”) is one of the leading producers of petroleum products in Thailand and offers customers a reliable source of high quality…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchAlexandria, EgyptHQ recorded Sep 20, 20261,001-5,000249 contacts →

Exact match

“Amreya Petroleum Refining Company (A.P.R.C) is one of the large complexes petroleum in the oil sector and have assumed the company at the forefront of the field of refining and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchIrvine, CA, United StatesHQ recorded Sep 20, 2026n/a233 contacts →

Exact match

“Chemical Engineering Partners (CEP) is a world leader in used oil re-refining designs and process technology.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchBradford, PA, United KingdomHQ recorded Sep 20, 2026201-500223 contacts →

Exact match

“American Refining Group Inc.’s unique facility is situated on approximately 131 acres in Bradford, Pennsylvania, the heart of McKean County and the birthplace of the U.S.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchUnited StatesHQ recorded Sep 20, 20261,001-5,000201 contacts →

Exact match

“Kangan Petro Refining Co.(KPRC) has been established in 2014 as a owner of C2 Recovery and Fractionation Plant of South Pars Phase 12.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchLibyaHQ recorded Sep 20, 20261,001-5,000174 contacts →

Exact match

“Azzawiya is a bpd”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchGothenburg, SwedenHQ recorded Sep 20, 2026201-500168 contacts →

Exact match

“St1's refinery in Gothenburg is widely recognized as one of the world's most efficient.”

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

Showing 25 of 223 petroleum refinery engineers worldwide

See the full list, filter by size, metro and specialty, and access 3,914 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Petroleum refinery engineers worldwide at a glance

As of Sep 20, 2026
16.1%Verified-email coverage
109.3Average contacts per company
51-200Median size (employees)
5.8%Largest-city concentration · Tehran
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
42
11-50
42
51-200
46
201-500
28
501-1,000
26
1,001-5,000
27
5,001-10,000
7
10001+
3

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for petroleum refinery engineers are linked below.
What qualifies
Company records worldwide whose business descriptions match “petroleum refinery engineers” 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. 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 3,914 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.

Petroleum refinery engineers by location

1 lists · largest first

Every Petroleum refinery engineers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 refinery engineers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many petroleum refinery engineers are there worldwide?

RevenueBase identified 223 company matches for petroleum refinery engineers worldwide 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?

Petro Rabigh tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most petroleum refinery engineers?

The United States leads with 31 companies. Every petroleum refinery engineers list by country and city is linked on this page.

Which city has the most petroleum refinery engineers?

Tehran leads with 13 company records, followed by Houston (6) and Chennai (4).

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 3,914 professional contacts with verified work emails tracked across these 223 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.