Company lists · Data refreshed September 2026

Top 25 Refinery expansion contractors based in Qatar

Name: Refinery expansion contractors based in Qatar
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 84 companies tracked

RevenueBase identified 84 refinery expansion contractors headquartered in Qatar as of September 2026 and tracks 12,202 professional contacts across them, including 1,117 with verified work emails. Doha is the largest hub.

This list covers refinery expansion contractors headquartered in Qatar, 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 17, 2026.

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 17, 2026 86% judged on-target in blind review

84Companies

12,202Contacts tracked

1,117Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest refinery expansion contractors based in Qatar

Ranked by team size

Top 25 of 84 refinery expansion contractors based in Qatar, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to refinery expansion contractors: 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	Qatar Engineering & Construction Company W.L.L	Partial evidence	Ras Laffan Industrial City (rlic), QatarHQ checked Sep 17, 2026	5,001-10,000	2,222 contacts →
	Partial evidence “Qatar Engineering & Construction Company (Qcon) is the leading National EPC & Maintenance Contractor in the Oil & Gas, Petrochemical, Fertilizer and Power industries.” Source: RevenueBase Database · checked Sep 17, 2026
2	Doha Petroleum Construction Co. W.L.L	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	1,001-5,000	1,557 contacts →
	Indirect evidence “Founded in 1981, DOPET is one of Qatar’s leading companies undertaking EPIC projects.” Source: RevenueBase Database · checked Sep 17, 2026
3	Medgulf Construction Co. WLL	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	1,001-5,000	1,076 contacts →
	Indirect evidence “Medgulf Construction Company ( W.L.L.) is wholly owned Qatari Company established in September 1975.” Source: RevenueBase Database · checked Sep 17, 2026
4	Petroserv Limited WLL	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	1,001-5,000	740 contacts →
	Indirect evidence “PETROSERV Oil & Gas is an ISO 9001: 2015, ISO 14001: 2015 and OHSAS 45001: 2018 certified Company that offers a diverse range of engineering and construction services in the Oil…” Source: RevenueBase Database · checked Sep 17, 2026
5	Emco Qatar	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	1,001-5,000	666 contacts →
	Indirect evidence “In the year 2002, realizing the need for Specialized Refurbishment, Repairs, & Maintenance Services of Oil Industries, Commercial and Residential Complexes.” Source: RevenueBase Database · checked Sep 17, 2026
6	Danem Group	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	1,001-5,000	494 contacts →
	Indirect evidence “Danem Group, established in 1998 and headquartered in Qatar, is a respected name in engineering, construction, project management and Trading.” Source: RevenueBase Database · checked Sep 17, 2026
7	Black CAT Engineering & Construction W.L.L	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	1,001-5,000	401 contacts →
	Indirect evidence “Black Cat Engineering & Construction WLL (BCEC) has been serving the industry in Qatar for three decades.” Source: RevenueBase Database · checked Sep 17, 2026
8	Venture Gulf Engineering	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	1,001-5,000	332 contacts →
	Indirect evidence “Venture Gulf Engineering W.L.L,(VGE) a subsidiary of Al Nasr Holding Company W.L.L, focused its resources and services with the aim of providing service to the Oil & Gas…” Source: RevenueBase Database · checked Sep 17, 2026
9	Chiyoda Almana Engineering LLC	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	201-500	292 contacts →
	Indirect evidence “Chiyoda Corporation of Japan has been active in supporting Qatar’s energy development since the 1970s, including the delivery of EPC projects for 12 of the 14 LNG trains that have…” Source: RevenueBase Database · checked Sep 17, 2026
10	SNC Lavalin Profac Gulf Management	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	51-200	146 contacts →
	Indirect evidence “Founded in 1911, SNC-Lavalin is one of the leading engineering and construction groups in the world and a major player in the ownership of infrastructure.” Source: RevenueBase Database · checked Sep 17, 2026
11	Bemco & Almabani Engineering And Contracting Co. Qatar Unicorp	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	501-1,000	129 contacts →
	Indirect evidence “Having years of successful cooperation between Arabian Bemco Contracting Co.” Source: RevenueBase Database · checked Sep 17, 2026
12	Omega Engineering WLL	Indirect evidence	Barwa, QatarHQ checked Sep 17, 2026	501-1,000	98 contacts →
	Indirect evidence “Omega Engineering WLL is one of the fast emerging, multi-disciplined engineering, contracting and construction company in the State of Qatar.” Source: RevenueBase Database · checked Sep 17, 2026
13	Energy Plus Technical Services W.L.L	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	201-500	97 contacts →
	Indirect evidence “ENERGYPLUS is a Leading Multi-Disciplinary and Oil & Gas Integrated Service Provider offers Multi Trade Professional, Innovative and Cost Effective Solutions in Construction…” Source: RevenueBase Database · checked Sep 17, 2026
14	Brick Stone Trading & Contracting	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	201-500	73 contacts →
	Indirect evidence “Brick Stone Trading & Contracting W.L.L is a company registered in the State of Qatar which provides engineering, procurement, construction (EPIC), maintenance and project…” Source: RevenueBase Database · checked Sep 17, 2026
15	Dime International Mechanical Engineering	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	201-500	63 contacts →
	Indirect evidence “DIME International Mechanical Engineering Co.” Source: RevenueBase Database · checked Sep 17, 2026
16	Matrix Incorporated W.L.L	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	1,001-5,000	63 contacts →
	Indirect evidence “Matrix Incorporated Contracting Co.” Source: RevenueBase Database · checked Sep 17, 2026
17	Qatar Construction Technique CO W.L.L. - Qctc	Indirect evidence	Ar Rayyān, QatarHQ checked Sep 17, 2026	501-1,000	61 contacts →
	Indirect evidence “Qatar Construction Technique Co WLL (QCTC) is one of the leading companies in the sector of specialized contracting services companies in the State of Qatar.” Source: RevenueBase Database · checked Sep 17, 2026
18	Jaidah Energy	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	51-200	61 contacts →
	Indirect evidence “Jaidahenergy LLC is a leading provider of services, products and solutions for the energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
19	Peninsular Petrotech Engineering WLL	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	501-1,000	60 contacts →
	Indirect evidence “Peninsular Petrotech Engineering W.L.L (PPE), a member of Teyseer Group of Companies and headquartered in Doha, is a 100% Qatari Company operating since 1982 as a leading…” Source: RevenueBase Database · checked Sep 17, 2026
20	Control Engineering, Trading And Contracting. Pvt. W.L.L Cetc	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	501-1,000	45 contacts →
	Indirect evidence “General Engineering, Trading and Contracting Company specializing in MEP, Telecom, and Systems Integration for the Oil & Gas and Government Sector.” Source: RevenueBase Database · checked Sep 17, 2026
21	IMC	Partial evidence	Zone 83, QatarHQ checked Sep 17, 2026	201-500	27 contacts →
	Partial evidence “IMC a special steel structure contractor in the world of engineering, fabrication, and construction in the GCC.” Source: RevenueBase Database · checked Sep 17, 2026
22	IKA Construction	Indirect evidence	Al Sadd, QatarHQ checked Sep 17, 2026	51-200	19 contacts →
	Indirect evidence “A full-service multi-disciplinary engineering and construction firm, IKA construction is defined by dynamic leadership and a team with extensive experience.” Source: RevenueBase Database · checked Sep 17, 2026
23	Mars Trading & Contracting CO	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	11-50	16 contacts →
	Indirect evidence “Established in 1958, Mars Trading & Contracting has been a pioneering force in the industry, with its Head Office proudly located in Doha.” Source: RevenueBase Database · checked Sep 17, 2026
24	Petrol & GAS Construction Company	Indirect evidence	Industrial, QatarHQ checked Sep 17, 2026	201-500	16 contacts →
	Indirect evidence “Established in 2002, Petrol & Gas Construction Co.” Source: RevenueBase Database · checked Sep 17, 2026
25	Haleys Group Middle East	Indirect evidence	Doha, QatarHQ checked Sep 17, 2026	51-200	15 contacts →
	Indirect evidence “HALEYS Group Middle East established in 2013 to meet the increasing need for top-tier engineering support services in the Energy industry.” Source: RevenueBase Database · checked Sep 17, 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: refinery expansion contractors. 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 refinery expansion contractors.
Partial evidence: Its own public description names part of refinery expansion contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name refinery expansion contractors. 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 84 refinery expansion contractors based in Qatar

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,117 reachable decision-makers.

Free signup · no credit card

View the full list →

Refinery expansion contractors based in Qatar at a glance

As of Sep 17, 2026

9.2%Verified-email coverage

145.3Average contacts per company

201-500Median size (employees)

56.0%Largest-city concentration · Doha

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 Qatar, so it is reported there. Company counts and contact totals on this page are exact for Qatar, over 84 companies.

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 refinery expansion contractors, 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.
What qualifies: Companies headquartered in Qatar whose own description of what they do matches “refinery expansion contractors”. 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 refinery expansion contractors), 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 refinery expansion contractors, and records with no verified work email. Companies headquartered outside Qatar are excluded even when they keep an office there.
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, 1,117 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 17, 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.

Refinery expansion contractors by metro

Refinery expansion contractors in Doha47

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 refinery expansion contractors, 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 refinery expansion contractors are there based in Qatar?

RevenueBase identified 84 refinery expansion contractors headquartered in Qatar 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?

Qatar Engineering & Construction Company W.L.L, headquartered in Qatar, tops this list with the largest team on record.

Which city has the most refinery expansion contractors?

Doha leads with 47 headquartered companies, followed by Doha Qatar (7) and Doha Doha (3).

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 1,117 verified decision-maker contacts tracked across these 84 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 17, 2026.

Ready to reach these companies? Verified emails and direct dials for all 84 refinery expansion contractors based in Qatar. Start with a free account, no credit card.

Download this list →

Related lists

Refinery expansion contractors by geography

Browse the directory

Browse: Companies home · All Qatar lists · All Refinery expansion contractors lists · New 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 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.