Company lists · Data refreshed September 2026

Top 25 Refinery expansion contractors based in Oman

Name: Refinery expansion 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 117 companies tracked

RevenueBase identified 117 refinery expansion contractors headquartered in Oman as of September 2026 and tracks 14,659 professional contacts across them, including 1,349 with verified work emails. Muscat is the largest hub.

This list covers refinery expansion 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

117Companies

14,659Contacts tracked

1,349Verified emails

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The 25 largest refinery expansion contractors based in Oman

Ranked by team size

Top 25 of 117 refinery expansion 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 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	Galfar Engineering & Contracting Saog	Indirect evidence	Muscat, OmanHQ checked Sep 17, 2026	10001+	4,433 contacts →
	Indirect 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	Special Technical Services L.L.C., Oman STS	Indirect evidence	Muscat, OmanHQ checked Sep 17, 2026	10001+	2,116 contacts →
	Indirect evidence “STS Group, headquartered in The Sultanate of Oman, is a leading multidisciplinary contracting group specializing in Construction, Fabrication and Maintenance services for the…” Source: RevenueBase Database · checked Sep 17, 2026
3	Arabian Industries	Indirect evidence	Alkhuwair, OmanHQ checked Sep 17, 2026	10001+	1,329 contacts →
	Indirect 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
4	TR Engineering Consultancy LLC A Tecnicas Reunidas Group Of Companies	Indirect evidence	Alkhuwair, OmanHQ checked Sep 17, 2026	201-500	528 contacts →
	Indirect evidence “TR Engineering Consultancy LLC, TRE, a member of the Tecnicas Reunidas Group, with a core business focussed on feasibility studies, front end and detailed engineering for upstream…” Source: RevenueBase Database · checked Sep 17, 2026
5	Muscat Engineering Consultancy LLC	Indirect evidence	Bowsher, OmanHQ checked Sep 17, 2026	501-1,000	409 contacts →
	Indirect evidence “MEC, a leading engineering and project management consultancy, offers quality-driven technical expertise and customized tailor-fit solutions to our clients from the idea inception…” Source: RevenueBase Database · checked Sep 17, 2026
6	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
7	Oman Gulf Company L.L.C	Indirect evidence	Salalah, OmanHQ checked Sep 17, 2026	1,001-5,000	165 contacts →
	Indirect evidence “Oman Gulf Company L.L.C is wholly owned Omani Company that has been established for over 40 years, with a current annual turnover by 2012 was Twenty millions Omani Riyal.” Source: RevenueBase Database · checked Sep 17, 2026
8	Seven Seas Petroleum LLC	Indirect evidence	Muscat, OmanHQ checked Sep 17, 2026	201-500	116 contacts →
	Indirect evidence “Seven Seas Petroleum LLC is a quality and service oriented company providing vital services to the Oman Oil & Gas Industry, helping national and international oil companies to…” Source: RevenueBase Database · checked Sep 17, 2026
9	Value Engineering Center	Indirect evidence	Muscat, OmanHQ checked Sep 17, 2026	51-200	107 contacts →
	Indirect 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
10	Vanguard Engineering & Oilfield Services Co. LLC	Indirect evidence	Azaiba, OmanHQ checked Sep 17, 2026	201-500	101 contacts →
	Indirect evidence “VANGUARD is a team of experienced & qualified technocrats with an aim to provide niche products, specialized services and innovative technology to the rapidly growing Energy and…” Source: RevenueBase Database · checked Sep 17, 2026
11	AL Arkan Construction LLC	Indirect evidence	Muscat, OmanHQ checked Sep 17, 2026	201-500	66 contacts →
	Indirect evidence “Al Arkan Construction LLC is a fast growing excellent grade construction company having its head office at Muscat, Sultanate of Oman.” Source: RevenueBase Database · checked Sep 17, 2026
12	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
13	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
14	Petrovision International LLC	Indirect evidence	Al Khuwair, OmanHQ checked Sep 17, 2026	11-50	33 contacts →
	Indirect evidence “Petrovision International LLC is an ISO 9001 certified professionally managed Engineering company, dedicated in providing quality services and products to the customers in Oil &…” Source: RevenueBase Database · checked Sep 17, 2026
15	Middle East Technical Services LLC	Indirect evidence	Muscat, OmanHQ checked Sep 17, 2026	201-500	30 contacts →
	Indirect 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
16	Sohar Star United LLC	Partial evidence	Sohar, OmanHQ checked Sep 17, 2026	201-500	29 contacts →
	Partial 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
17	Heavy Equipment Maintenance And Trading CO LLC	Indirect evidence	Nizwa, OmanHQ checked Sep 17, 2026	51-200	27 contacts →
	Indirect evidence “Heavy Equipment Maintenance & Trading (HEMT) is an advanced and comprehensive set-up that offers a one-stop shop for design, manufacturing repair and refurbishment of all…” Source: RevenueBase Database · checked Sep 17, 2026
18	Elixir Engineering	Indirect evidence	Muscat, OmanHQ checked Sep 17, 2026	11-50	21 contacts →
	Indirect evidence “Elixir Engineering is one of the fastest growing "100% Omani owned" Engineering Consultancy Firm in the Sultanate of Oman.” Source: RevenueBase Database · checked Sep 17, 2026
19	Al-Thana International Trad. Cont. Co. L.L.C	Indirect evidence	Muscat, OmanHQ checked Sep 17, 2026	1,001-5,000	20 contacts →
	Indirect 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
20	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
21	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
22	Amran Establishment LLC	Indirect evidence	Muscat, OmanHQ checked Sep 17, 2026	201-500	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
23	Colossal Engineering & Construction	Indirect evidence	Muscat, OmanHQ checked Sep 17, 2026	51-200	12 contacts →
	Indirect 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
24	Horizon Engineering And Technical Services LLC	Indirect evidence	Sohar, OmanHQ checked Sep 17, 2026	11-50	12 contacts →
	Indirect evidence “Horizon Engineering & Technical Services LLC (HETS) is an ISO-certified, multidisciplinary Engineering, Procurement & Contracting (EPC) company serving the Gulf region.” Source: RevenueBase Database · checked Sep 17, 2026
25	Orbital Fabrication & Integration Services LLC Ofis , Oman	Indirect evidence	Sohar, OmanHQ checked Sep 17, 2026	51-200	11 contacts →
	Indirect evidence “M/s.” 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 117 refinery expansion contractors based in Oman

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Refinery expansion contractors based in Oman at a glance

As of Sep 17, 2026

9.2%Verified-email coverage

125.3Average contacts per company

51-200Median size (employees)

41.9%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 117 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 Oman 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 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, 1,349 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 Muscat49

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 Oman?

RevenueBase identified 117 refinery expansion 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 refinery expansion contractors?

Muscat leads with 49 headquartered companies, followed by Sohar (5) and Muscat Muscat (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 1,349 verified decision-maker contacts tracked across these 117 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.