Company lists · Data refreshed September 2026

Top 25 Petroleum engineering staffing companies worldwide

Name: Petroleum engineering staffing companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 3,127 companies tracked

RevenueBase identified 3,127 petroleum engineering staffing companies worldwide as of September 2026 and tracks 58,939 professional contacts across them, including 8,093 with verified work emails. The United Kingdom is the largest market and Houston the largest hub.

This list covers petroleum engineering staffing companies worldwide, 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 29, 2026. Country and city lists for petroleum engineering staffing companies follow the table.

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 29, 2026 86% judged on-target in blind review

3,127Companies

58,939Contacts tracked

8,093Verified emails

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The 25 largest petroleum engineering staffing companies worldwide

Ranked by team size

Top 25 of 3,127 petroleum engineering staffing companies worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to petroleum engineering staffing companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	NES Fircroft	Strong evidence	Altrincham, United KingdomHQ checked Sep 29, 2026	1,001-5,000	2,951 contacts →
	Strong evidence “With over 90 years’ combined experience of delivering workforce solutions to the global energy industry, NES Fircroft is proud to be the world’s leading engineering staffing…” Source: RevenueBase Database · checked Sep 29, 2026
2	TRS Staffing Solutions	Strong evidence	Greenville, United StatesHQ checked Sep 29, 2026	201-500	1,187 contacts →
	Strong evidence “TRS Staffing Solutions is a world leading engineering recruitment agency specialising in the recruitment and supply of professional, engineering, technical and field talent.” Source: RevenueBase Database · checked Sep 29, 2026
3	JKS A S	Indirect evidence	Ringkøbing, DenmarkHQ checked Sep 29, 2026	1,001-5,000	822 contacts →
	Indirect evidence “We are JKS.” Source: RevenueBase Database · checked Sep 29, 2026
4	NES Global Talent	Partial evidence	United KingdomHQ checked Sep 29, 2026	1,001-5,000	726 contacts →
	Partial evidence “NES Global Talent provided engineering and technical personnel to the Oil & Gas, Power, Life Science and mining sectors.” Source: RevenueBase Database · checked Sep 29, 2026
5	PTS Advance	Indirect evidence	Tustin, CA, United StatesHQ checked Sep 29, 2026	501-1,000	706 contacts →
	Indirect evidence “PTS Advance teams up with thousands of candidates, clients, and partners to advance workforce utilization in the Oil, Gas & Chemicals, Power & Renewables, Advanced Manufacturing…” Source: RevenueBase Database · checked Sep 29, 2026
6	Fircroft	Strong evidence	Warrington, United KingdomHQ checked Sep 29, 2026	501-1,000	589 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
7	Island Operating Company	Indirect evidence	Scott, LA, United StatesHQ checked Sep 29, 2026	1,001-5,000	570 contacts →
	Indirect evidence “Improving efficiency and reducing costs, all while meeting safety requirements, is the challenge faced by every operator in the oil and gas industry.” Source: RevenueBase Database · checked Sep 29, 2026
8	Kavin Engineering And Services	Partial evidence	Coimbatore, IndiaHQ checked Sep 29, 2026	501-1,000	536 contacts →
	Partial evidence “Kavin Engineering And Services Private Limited are leaders in Engineering & Services.” Source: RevenueBase Database · checked Sep 29, 2026
9	Dynamic Staffing Services	Indirect evidence	New Delhi, IndiaHQ checked Sep 29, 2026	501-1,000	512 contacts →
	Indirect evidence “Rated #1- Building the lives of People - A recruitment & outsourcing firm that prides itself on ethics!# 47 years in business.” Source: RevenueBase Database · checked Sep 29, 2026
10	Petrotec	Partial evidence	Doha, QatarHQ checked Sep 29, 2026	501-1,000	496 contacts →
	Partial evidence “Petroleum Technology Company W.L.L (Petrotec) is one of the largest providers of Engineered products and services to the energy industry in Qatar, specializing in key diverse…” Source: RevenueBase Database · checked Sep 29, 2026
11	Ersg LTD	Partial evidence	Bromley, United KingdomHQ checked Sep 29, 2026	51-200	426 contacts →
	Partial evidence “ERSG \| Sourcing talent for a sustainable tomorrow ERSG has 15 offices around the world & is an award-winning international leader in recruitment and staffing services to the…” Source: RevenueBase Database · checked Sep 29, 2026
12	Engine	Indirect evidence	Moscow, RussiaHQ checked Sep 29, 2026	51-200	415 contacts →
	Indirect evidence “We work on complex, high-stakes hiring challenges across leadership roles and highly specialized expert positions.” Source: RevenueBase Database · checked Sep 29, 2026
13	Connect Energy	Indirect evidence	SingaporeHQ checked Sep 29, 2026	n/a	393 contacts →
	Indirect evidence “Connect Energy Services is an internationally accredited recruitment and workforce solutions consultancy.” Source: RevenueBase Database · checked Sep 29, 2026
14	Amoria Bond	Partial evidence	Manchester, NetherlandsHQ checked Sep 29, 2026	51-200	293 contacts →
	Partial evidence “Amoria Bond is an international, award-winning recruitment company dedicated to progressing lives through specialist staffing and recruitment solutions.” Source: RevenueBase Database · checked Sep 29, 2026
15	Visuna	Indirect evidence	Washington, United KingdomHQ checked Sep 29, 2026	51-200	277 contacts →
	Indirect evidence “As a leading recruitment company with over 25 years’ experience, we provide full end to end workforce solutions for our clients worldwide, with fast access to talent across the…” Source: RevenueBase Database · checked Sep 29, 2026
16	Crosby Energy Services	Indirect evidence	Cut Off, LA, United StatesHQ checked Sep 29, 2026	201-500	272 contacts →
	Indirect evidence “Founded as C&D Wireline in 1968, with C&D Production Specialist joining the business in 1993, today Crosby Energy Services is a certified Women’s Business Enterprise National…” Source: RevenueBase Database · checked Sep 29, 2026
17	Progressive	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	262 contacts →
	Partial evidence “Progressive is a global staffing company connecting STEM talent with leading companies in the Power and Utilities, Renewable Energy, Oil and Gas, and Manufacturing industries.” Source: RevenueBase Database · checked Sep 29, 2026
18	Global Edge Group	Indirect evidence	The Woodlands, TX, United StatesHQ checked Sep 29, 2026	51-200	256 contacts →
	Indirect evidence “Global Edge Group is a full-service workforce solutions firm specializing in the recruitment of technical and project personnel for industries such as Oil and Gas, Power…” Source: RevenueBase Database · checked Sep 29, 2026
19	Actief Hartmanns	Indirect evidence	Ballerup, DenmarkHQ checked Sep 29, 2026	51-200	253 contacts →
	Indirect evidence “Specialister i rekruttering, vikar, Newplacement & udvikling \| Pharma & Life Science, Teknik & IT, Energi & Miljø, Lager & Logistik, Finans & Offentlig sektor” Source: RevenueBase Database · checked Sep 29, 2026
20	CTS Complete Technical Services	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	250 contacts →
	Indirect evidence “CTS - Complete Technical Services, Inc.” Source: RevenueBase Database · checked Sep 29, 2026
21	Shorterm Group	Partial evidence	Yiewsley, United KingdomHQ checked Sep 29, 2026	51-200	247 contacts →
	Partial evidence “The Shorterm Group provides specialist recruitment services and technical support for the engineering industry.” Source: RevenueBase Database · checked Sep 29, 2026
22	Cenergy International Services	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	239 contacts →
	Indirect evidence “Cenergy is a dynamic company that supplies expert workforce solutions to the World's Leading Industries.” Source: RevenueBase Database · checked Sep 29, 2026
23	Sheffield Energy	Partial evidence	SingaporeHQ checked Sep 29, 2026	51-200	222 contacts →
	Partial evidence “Sheffield Energy is a global recruitment organization providing technical staffing and executive placement solutions to our clients around the world.” Source: RevenueBase Database · checked Sep 29, 2026
24	Ep2c	Indirect evidence	Balma, FranceHQ checked Sep 29, 2026	501-1,000	211 contacts →
	Indirect evidence “EP2C recruits talents looking for an international career.” Source: RevenueBase Database · checked Sep 29, 2026
25	Oceanwide	Indirect evidence	Vlissingen, NetherlandsHQ checked Sep 29, 2026	501-1,000	202 contacts →
	Indirect evidence “Oceanwide is an international provider of diversified personnel services focused on the Maritime, Oil & Gas, Wind Energy and Construction industries.” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: petroleum engineering staffing companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names petroleum engineering staffing companies.
Partial evidence: Its own public description names part of petroleum engineering staffing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name petroleum engineering staffing companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 3,127 petroleum engineering staffing companies worldwide

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Petroleum engineering staffing companies worldwide at a glance

As of Sep 29, 2026

13.7%Verified-email coverage

18.8Average contacts per company

11-50Median size (employees)

3.8%Largest-city concentration · Houston

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

1,532

11-50

917

51-200

463

201-500

121

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 petroleum engineering staffing companies, 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.
Coverage: Every country. Country and city lists for petroleum engineering staffing companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “petroleum engineering staffing companies”. 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 petroleum engineering staffing companies), 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 petroleum engineering staffing companies, and records with no verified work email.
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, 8,093 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 29, 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.

Petroleum engineering staffing companies by location

18 lists · largest first

Every Petroleum engineering 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 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 petroleum engineering staffing companies, 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 petroleum engineering staffing companies are there worldwide?

RevenueBase identified 3,127 petroleum engineering staffing companies worldwide 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?

NES Fircroft, headquartered in Altrincham, tops this list with the largest team on record.

Which country has the most petroleum engineering staffing companies?

The United Kingdom leads with 595 companies, followed by the United States (567) and the Netherlands (193). Every petroleum engineering staffing companies list by country and city is linked on this page.

Which city has the most petroleum engineering staffing companies?

Houston leads with 120 headquartered companies, followed by London (117) and Calgary (51).

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 8,093 verified decision-maker contacts tracked across these 3,127 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 29, 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.