Company lists · Data refreshed September 2026

Top 21 Oil refinery construction contractors based in Oman

Name: Oil refinery construction contractors based in Oman
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 65 companies tracked

RevenueBase identified 65 oil refinery construction contractors headquartered in Oman as of September 2026 and tracks 10,741 professional contacts across them, including 897 with verified work emails. Muscat is the largest hub.

This list covers oil refinery construction contractors headquartered in Oman, 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

65Companies

10,741Contacts tracked

897Verified emails

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The 21 largest oil refinery construction contractors based in Oman

Ranked by team size

Top 21 of 65 oil refinery construction contractors based in Oman, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to oil refinery construction 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	Galfar Engineering & Contracting Saog	Partial evidence	Muscat, OmanHQ checked Sep 17, 2026	10001+	4,433 contacts →
	Partial evidence “Galfar Engineering & Contracting SAOG is one of the largest, multi-disciplined engineering, contracting and construction company in the Sultanate of Oman.” Source: RevenueBase Database · checked Sep 17, 2026
2	Arabian Industries	Partial evidence	Alkhuwair, OmanHQ checked Sep 17, 2026	10001+	1,329 contacts →
	Partial evidence “We deliver engineered solutions for the oil, gas and industrialised sectors through our manufacturing, EPC Projects, Maintenance & Turnarounds, Logistics & Rig Moving and Support…” Source: RevenueBase Database · checked Sep 17, 2026
3	AL Haditha Energy Saoc	Indirect evidence	Muscat, OmanHQ checked Sep 17, 2026	1,001-5,000	241 contacts →
	Indirect evidence “Al Haditha Energy S.A.O.C is an Omani Contracting Company established in 2011, held by around 2600 community shareholders with a share capital of OMR 5.5 Million, catering its…” Source: RevenueBase Database · checked Sep 17, 2026
4	Value Engineering Center	Partial evidence	Muscat, OmanHQ checked Sep 17, 2026	51-200	107 contacts →
	Partial evidence “Value Engineering Centre (VEC) was formed in 2004 to provide engineering consulting and design services to oil and gas industries in Oman.” Source: RevenueBase Database · checked Sep 17, 2026
5	Orbital Projects & Services	Partial evidence	Muscat, OmanHQ checked Sep 17, 2026	201-500	71 contacts →
	Partial evidence “Orbital Projects & Services LLC (OPS) is a local Oman based company specialized in Engineering, Procurement & Construction (EPC) of medium scaled projects in Civil and Mechanical…” Source: RevenueBase Database · checked Sep 17, 2026
6	AL Ghalbi International E&c LLC	Indirect evidence	العذيبة الجنوبية, OmanHQ checked Sep 17, 2026	1,001-5,000	49 contacts →
	Indirect evidence “Al Ghalbi International Engineering & Contracting LLC is an engineering, contracting and an ISO 9001:2008 certified Limited Liabilities company, providing services for the main…” Source: RevenueBase Database · checked Sep 17, 2026
7	AL Hajiry Mechanical Engineering	Indirect evidence	Wadi Kabir, OmanHQ checked Sep 17, 2026	1,001-5,000	40 contacts →
	Indirect evidence “A Legacy of Excellence in EPC & High-Capacity Fabrication Since 1994.” Source: RevenueBase Database · checked Sep 17, 2026
8	Gulf Petrochemical Services & Trading LLC	Strong evidence	OmanHQ checked Sep 17, 2026	n/a	38 contacts →
	Strong evidence “EPC Contractor for Oil, Gas, Process, Power, Water and Wastewater Sector” Source: RevenueBase Database · checked Sep 17, 2026
9	Middle East Technical Services LLC	Partial evidence	Muscat, OmanHQ checked Sep 17, 2026	201-500	30 contacts →
	Partial evidence “Since 2014, Middle East Technical Services LLC has been a trusted partner, offering optimal solutions across diverse sectors – Oil, Gas, Petrochemicals, Power, Water, and…” Source: RevenueBase Database · checked Sep 17, 2026
10	Sohar Star United LLC	Strong evidence	Sohar, OmanHQ checked Sep 17, 2026	201-500	29 contacts →
	Strong evidence “It is a privilege to present before you that Sohar Star United LLC is an excellent grade contractor with sustained growth especially in the Industrial Construction Field with more…” Source: RevenueBase Database · checked Sep 17, 2026
11	Techno Gears Industries	Indirect evidence	Muscat, OmanHQ checked Sep 17, 2026	201-500	22 contacts →
	Indirect evidence “Techno Gears Industries LLC is a ISO 9001:2015, ISO 14001:2015 & ISO 45001:2018 certified company & Petroleum Development of Oman approved.” Source: RevenueBase Database · checked Sep 17, 2026
12	Al-Thana International Trad. Cont. Co. L.L.C	Strong evidence	Muscat, OmanHQ checked Sep 17, 2026	1,001-5,000	20 contacts →
	Strong evidence “Established in 2011, Al Thana International is a 100% Omani company and one of the Oman’s most prominent construction contracting companies in Oil & Gas and Infrastructure…” Source: RevenueBase Database · checked Sep 17, 2026
13	Emaar AL Kauther LLC	Partial evidence	OmanHQ checked Sep 17, 2026	201-500	18 contacts →
	Partial evidence “We are a Local Community Contractor Company and have carried out various projects at PDO, OXY, BP, and many more.” Source: RevenueBase Database · checked Sep 17, 2026
14	Deyyar International LLC	Indirect evidence	Mabela, OmanHQ checked Sep 17, 2026	51-200	15 contacts →
	Indirect evidence “Having established in the year 2007, DEYYAR INTERNATIONAL LLC is supported by the parental groups, who are foremost in various industries.” Source: RevenueBase Database · checked Sep 17, 2026
15	Colossal Engineering & Construction	Strong evidence	Muscat, OmanHQ checked Sep 17, 2026	51-200	12 contacts →
	Strong evidence “Colossal home grown in Oman is 100 % owned by Omani entrepreneurs, to deliver unequaled EPC construction services and solutions to the Oman market in the Oil & Gas and Water and…” Source: RevenueBase Database · checked Sep 17, 2026
16	Global Business Services LLC	Partial evidence	Muscat, OmanHQ checked Sep 17, 2026	501-1,000	8 contacts →
	Partial evidence “GLOBAL BUSINESS SERVICES LLC (GBS) is a Professionally managed Multi-Discipline EPCC Company operating in Oil & Gas (Process Plants and pipelines), Petrochemicals, Power…” Source: RevenueBase Database · checked Sep 17, 2026
17	Field Star Trading LLC	Strong evidence	Muscat, OmanHQ checked Sep 17, 2026	1-10	8 contacts →
	Strong evidence “We supply Total Engineering Solutions in the field of Oil & Gas, Petro-chemical, Refineries,Power-Gen, Primary Steel, Heavy equipment rental, General industries.” Source: RevenueBase Database · checked Sep 17, 2026
18	Gulf DAM Engineering & Services LLC	Partial evidence	Muscat, OmanHQ checked Sep 17, 2026	51-200	7 contacts →
	Partial evidence “Gulf Dam Engineering & Services LLC was established in 2005, is registered with Petroleum Development Oman, and was classified as LCC- “Local Community Contractor” and also a…” Source: RevenueBase Database · checked Sep 17, 2026
19	Premier Production Fabricators	Indirect evidence	Rusayl, OmanHQ checked Sep 17, 2026	51-200	5 contacts →
	Indirect evidence “Premier Production Fabricators L.L.C.(PROFAB) is located in the Rusayl Industrial Estate; covering a working area of Square Meters.” Source: RevenueBase Database · checked Sep 17, 2026
20	Golden Saif Construction And Development CO	Indirect evidence	Muscat, OmanHQ checked Sep 17, 2026	51-200	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
21	Zerco Gulf National Advanced Solutions, LLC	Indirect evidence	Muscat, OmanHQ checked Sep 17, 2026	1-10	2 contacts →
	Indirect evidence “ZERCO GULF is a ZERCO technical company specialized in EPC Services.” 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: oil refinery construction 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 oil refinery construction contractors.
Partial evidence: Its own public description names part of oil refinery construction contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil refinery construction 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 21 of 65 oil refinery construction contractors based in Oman

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Oil refinery construction contractors based in Oman at a glance

As of Sep 17, 2026

8.4%Verified-email coverage

165.2Average contacts per company

51-200Median size (employees)

47.7%Largest-city concentration · Muscat

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 Oman, so it is reported there. Company counts and contact totals on this page are exact for Oman, over 65 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 oil refinery construction 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 Oman whose own description of what they do matches “oil refinery construction 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 oil refinery construction 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 oil refinery construction contractors, and records with no verified work email. Companies headquartered outside Oman 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, 897 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.

Oil refinery construction contractors by metro

Oil refinery construction contractors in Muscat31

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 oil refinery construction 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 oil refinery construction contractors are there based in Oman?

RevenueBase identified 65 oil refinery construction contractors headquartered in Oman 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?

Galfar Engineering & Contracting Saog, headquartered in Muscat Oman Muscat, tops this list with the largest team on record.

Which city has the most oil refinery construction contractors?

Muscat leads with 31 headquartered companies, followed by Sohar (2) and Al Khuwair (1).

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 897 verified decision-maker contacts tracked across these 65 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.

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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.