Company lists · Data refreshed November 2026

Top 25 Refinery engineers worldwide

Name: Refinery engineers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 13,141 companies tracked

RevenueBase identified 13,141 company matches for refinery engineers worldwide as of November 2026 and tracks 557,098 professional contacts across them, including 106,838 with verified work emails. The United States is the largest market and Tehran the largest hub.

This list covers company matches for 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 November 6, 2026. Country and city lists for 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 Nov 6, 2026 How this list was built

13,141Companies

557,098Contacts tracked

106,838Verified emails

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The 25 largest refinery engineers worldwide

Ranked by team size

Top 25 of 13,141 company matches for refinery engineers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Mcdermott International, LTD	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	10001+	21,606 contacts →
	Exact match “McDermott is a premier provider of engineering and construction solutions to the energy industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Bharat Petroleum Corporation Limited	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	10001+	19,709 contacts →
	Exact match “Fortune Global 500 Company, Bharat Petroleum is the second largest Indian Oil Marketing Company and one of the premier integrated energy companies in India, engaged in refining of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Technip Energies	Exact match	Paris, FranceHQ recorded Nov 6, 2026	10001+	17,068 contacts →
	Exact match “Technip Energies is a global technology and engineering powerhouse.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Aker Solutions	Exact match	Fornebu, NorwayHQ recorded Nov 6, 2026	10001+	16,534 contacts →
	Exact match “Aker Solutions is a global engineering and technology company known for delivering complex energy projects with trusted quality and predictable results.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Amec Foster Wheeler	Exact match	Aberdeen, OR, United KingdomHQ recorded Nov 6, 2026	10001+	15,435 contacts →
	Exact match “Wood Group has combined with Amec Foster Wheeler to form a new global leader in the delivery of project, engineering and technical services to energy and industrial markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Tecnicas Reunidas	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	10001+	11,748 contacts →
	Exact match “TR is an international general contractor engaged in the engineering and construction of industrial facilities in the fields of-Oil & Gas -Refining & Petrochemical -Power…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Valero	Exact match	San Antonio, United StatesHQ recorded Nov 6, 2026	10001+	9,942 contacts →
	Exact match “Valero is an international manufacturer and marketer of transportation fuels and petrochemical products.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Tata Consulting Engineers	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	5,001-10,000	8,994 contacts →
	Exact match “Tata Consulting Engineers Limited (TCE) is the largest Indian private sector engineering and project consultancy and an emerging global leader in integrated engineering solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Samsung E&a	Exact match	Gangdong-gu, South KoreaHQ recorded Nov 6, 2026	5,001-10,000	7,517 contacts →
	Exact match “SAMSUNG E&A is one of the world’s leading engineering, procurement, construction and project management (EPC & PM) companies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Aesa A-Evangelista SA	Exact match	Canning, IndiaHQ recorded Nov 6, 2026	5,001-10,000	5,428 contacts →
	Exact match “Since 1948 we specialize in projects for the energy industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	CITGO	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	4,413 contacts →
	Exact match “CITGO Petroleum Corporation is a recognized leader in the refining industry and operates under the well-known CITGO brand.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Imperial OIL	Exact match	Calgary, AB, CanadaHQ recorded Nov 6, 2026	5,001-10,000	4,411 contacts →
	Exact match “After more than a century, Imperial continues to be an industry leader in applying technology and innovation to responsibly develop Canada’s energy resources.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Bilfinger	Exact match	Mannheim, GermanyHQ recorded Nov 6, 2026	10001+	4,349 contacts →
	Exact match “Bilfinger is an international industrial services provider with a vision to be the No.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	UTC Engenharia	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	10001+	3,894 contacts →
	Exact match “The Company operates in sundry markets, taking the lead in such sectors as oil & gas production and processing, petrochemicals, power generation, steel production, paper & pulp…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	S&b	Exact match	Houston, LA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	3,819 contacts →
	Exact match “S&B is an engineer and constructor that designs and builds some of the largest and most complex industrial facilities in the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	ENPPI	Exact match	Nasr City 1, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,542 contacts →
	Exact match “Enppi is globally recognized as a major engineering, EPC main contractor, and management contractor, with decades of experience in onshore and offshore projects in the oil and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Saudi Aramco Total Refining And Petrochemical Company Satorp	Exact match	Jubail, Saudi ArabiaHQ recorded Nov 6, 2026	1,001-5,000	3,441 contacts →
	Exact match “The Saudi Aramco Total Refining and Petrochemical Company (SATORP) is one of the most advanced refineries in the world, with a processing capacity of barrels per day of Arabian…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Hpcl-Mittal Energy Limited	Exact match	Noida, IndiaHQ recorded Nov 6, 2026	1,001-5,000	3,431 contacts →
	Exact match “HPCL-Mittal Energy Limited (HMEL) is a joint venture between Hindustan Petroleum Corporation Limited (HPCL) and Mittal Energy Investment Pte Ltd, Singapore, a Lakshmi N Mittal…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Petro Rabigh	Exact match	Rabigh, Saudi ArabiaHQ recorded Nov 6, 2026	1,001-5,000	3,169 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 · Nov 6, 2026 · View company records in RevenueBase
20	Flint Hills Resources	Exact match	Wichita, MN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,001 contacts →
	Exact match “Flint Hills Resources is a leading refining company with operations primarily in the Midwest and Texas.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Toyo Engineering Corporation	Exact match	Chiba-shi Mihama-ku, JapanHQ recorded Nov 6, 2026	1,001-5,000	2,912 contacts →
	Exact match “Toyo Engineering is an engineering company that constructs the plant in a global stage centering on the plant engineering field.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	PARCO	Exact match	Karachi, PakistanHQ recorded Nov 6, 2026	1,001-5,000	2,547 contacts →
	Exact match “PARCO - PAK-ARAB REFINERY LTD.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Montcalm Montagens Industriais	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	2,431 contacts →
	Exact match “Fundada em 1971, a Montcalm tem como missão, oferecer soluções de engenharia construtiva para implantação, ampliação e manutenção de indústrias de processos, sempre com o…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	HF Sinclair	Exact match	Dallas, TX, United StatesHQ recorded Nov 6, 2026	5,001-10,000	2,415 contacts →
	Exact match “Headquartered in Dallas, Texas, HF Sinclair Corporation is an independent, diversified energy company committed to safely producing products that power the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Bapco Refining	Exact match	Awali, BahrainHQ recorded Nov 6, 2026	1,001-5,000	2,312 contacts →
	Exact match “Bapco (with a legacy of being referred to as “The Company” in Arabic - Ash Shariqa locally) is a trusted and enterprising organisation, which has never stood still since its…” Recorded in the RevenueBase company graph · Nov 6, 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 “refinery engineers”. 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 25 of 13,141 refinery engineers worldwide

See the full list, filter by size, metro and specialty, and access 106,838 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Refinery engineers worldwide at a glance

As of Nov 6, 2026

19.2%Verified-email coverage

42.4Average contacts per company

11-50Median size (employees)

2.4%Largest-city concentration · Tehran

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

4,795

11-50

4,435

51-200

2,330

201-500

818

501-1,000

331

1,001-5,000

264

5,001-10,000

10001+

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 refinery engineers are linked below.
What qualifies: Company records worldwide whose business descriptions match “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 106,838 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 November 6, 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.

Refinery engineers by location

86 lists · largest first

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

Countries

Cities

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

How many refinery engineers are there worldwide?

RevenueBase identified 13,141 company matches for refinery engineers worldwide as of November 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?

Mcdermott International, LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most refinery engineers?

The United States leads with 1,477 companies, followed by India (1,170) and Brazil (791). Every refinery engineers list by country and city is linked on this page.

Which city has the most refinery engineers?

Tehran leads with 316 company records, followed by Houston (245) and Calgary (159).

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 106,838 professional contacts with verified work emails tracked across these 13,141 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 November 6, 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.