Company lists · Data refreshed September 2026

Top 25 Refinery operations staffing companies worldwide

RevenueBase identified 2,073 company matches for refinery operations staffing companies worldwide as of September 2026 and tracks 74,015 professional contacts across them, including 10,290 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for refinery operations staffing companies 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 29, 2026. Country and city lists for refinery operations staffing companies 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 29, 2026 How this list was built
2,073Companies
74,015Contacts tracked
10,290Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest refinery operations staffing companies worldwide

Ranked by team size
Top 25 of 2,073 company matches for refinery operations staffing companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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 matchHouston, TX, United StatesHQ recorded Sep 29, 20261,001-5,0004,396 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 · Sep 29, 2026 · View company records in RevenueBase
2Exact matchJubail Industrial City, Saudi ArabiaHQ recorded Sep 29, 20265,001-10,0001,812 contacts →

Exact match

“AYTB had recognized the Saudi Dream 45 years ago when the Royal Commission for Jubail and Yanbu was set up with a vision to build a huge petrochemical industry to catapult Saudi…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchDammam, Saudi ArabiaHQ recorded Sep 29, 20265,001-10,0001,587 contacts →

Exact match

“ANABEEB is on a mission to become the best in the industry, together with our highly-dedicated workforce and global partners, we will deliver added value to our customers without…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchRio De Janeiro, BrazilHQ recorded Sep 29, 2026501-1,0001,406 contacts →

Exact match

“Inaugurada em 1954, a Refit nasceu para ajudar o Brasil a escrever sua história de sucesso no mercado de petróleo.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchBrentwood, TN, United StatesHQ recorded Sep 29, 20261,001-5,0001,297 contacts →

Exact match

“Delek US is a diversified downstream energy company with assets in petroleum refining, asphalt, renewable fuels, and logistics.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchRawalpindi, PakistanHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
7Exact matchChennai, IndiaHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
8Exact matchGreenville, United StatesHQ recorded Sep 29, 2026201-5001,187 contacts →

Exact match

“TRS Staffing Solutions is a world leading engineering recruitment agency specialising in the recruitment and supply of professional, engineering, technical and field talent.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchKarachi, PakistanHQ recorded Sep 29, 20261,001-5,0001,097 contacts →

Exact match

“National Refinery Limited ( NRL ) was incorporated on August 19, 1963 as a public limited company.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchProspecton, South AfricaHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
11Exact matchTehran, IranHQ recorded Sep 29, 20261,001-5,000869 contacts →

Exact match

“Oil Industries’ Commissioning and Operation Company (OICO) is incorporated to manage and execute commissioning and start-up, operation, maintenance and professional training for…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchGoose Creek, SC, United StatesHQ recorded Sep 29, 2026n/a732 contacts →

Exact match

“Trojan Labor Specializes in matching Customers who have industrial and Light Industrial staffing needs while never forgetting who the CUSTOMER is.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchUnited KingdomHQ recorded Sep 29, 20261,001-5,000726 contacts →

Exact match

“NES Global Talent provided engineering and technical personnel to the Oil & Gas, Power, Life Science and mining sectors.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchTustin, CA, United StatesHQ recorded Sep 29, 2026501-1,000706 contacts →

Exact match

“PTS Advance teams up with thousands of candidates, clients, and partners to advance workforce utilization in the Oil, Gas & Chemicals, Power & Renewables, Advanced Manufacturing…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchErnakulam, IndiaHQ recorded Sep 29, 20261,001-5,000680 contacts →

Exact match

“The BPCL Kochi Refinery, embarked on its journey in 1966 with a capacity of barrels per day.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchWarrington, United KingdomHQ recorded Sep 29, 2026501-1,000589 contacts →

Exact match

“Fircroft is now part of the NES Fircroft group - the world’s leading engineering staffing provider spanning the Oil & Gas, Power & Renewables, Infrastructure, Life Sciences…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchScott, LA, United StatesHQ recorded Sep 29, 20261,001-5,000570 contacts →

Exact match

“Improving efficiency and reducing costs, all while meeting safety requirements, is the challenge faced by every operator in the oil and gas industry.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchNew Delhi, IndiaHQ recorded Sep 29, 2026501-1,000512 contacts →

Exact match

“Rated #1- Building the lives of People - A recruitment & outsourcing firm that prides itself on ethics!# 47 years in business.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchBaytown, TX, United StatesHQ recorded Sep 29, 20261,001-5,000475 contacts →

Exact match

“Turn2 Specialty Companies is the premier provider of specialty turnaround services in the refining, petrochemical, and power industries.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchAtlanta, GA, United StatesHQ recorded Sep 29, 20261,001-5,000473 contacts →

Exact match

“Welcome to NSC, the Skilled Staffing Experts!”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchPriolo Gargallo, ItalyHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
22Exact matchBurlington, MA, United StatesHQ recorded Sep 29, 2026201-500468 contacts →

Exact match

“For the last sixty years Entegee has provided Fortune 500 and other companies with highly qualified engineering and technical personnel.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchGrangemouth, United KingdomHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
24Exact match3rd Industrial, Saudi ArabiaHQ recorded Sep 29, 20261,001-5,000465 contacts →

Exact match

“ALMUZAIN is one of the leading Industrial Services Companies that caters to the ever-growing and complex demands of the Petrochemical and Refineries in Saudi Arabia.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchZarqa, JordanHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase

Showing 25 of 2,073 refinery operations staffing companies worldwide

See the full list, filter by size, metro and specialty, and access 10,290 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Refinery operations staffing companies worldwide at a glance

As of Sep 29, 2026
13.9%Verified-email coverage
35.7Average contacts per company
11-50Median size (employees)
5.3%Largest-city concentration · Houston
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
723
11-50
554
51-200
444
201-500
175
501-1,000
84
1,001-5,000
73
5,001-10,000
13
10001+
4

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 operations staffing companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “refinery operations staffing 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. 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 10,290 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 29, 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 operations staffing companies by location

11 lists · largest first

Every Refinery operations staffing companies 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 operations staffing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many refinery operations staffing companies are there worldwide?

RevenueBase identified 2,073 company matches for refinery operations staffing companies 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?

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

Which country has the most refinery operations staffing companies?

The United States leads with 641 companies, followed by the Netherlands (144) and the United Kingdom (120). Every refinery operations staffing companies list by country and city is linked on this page.

Which city has the most refinery operations staffing companies?

Houston leads with 109 company records, followed by Abu Dhabi (25) and Mumbai (20).

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 10,290 professional contacts with verified work emails tracked across these 2,073 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 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 2,073 refinery operations staffing companies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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.