Company lists · Data refreshed September 2026

Top 23 Refinery engineering firms based in Oman

Name: Refinery engineering firms based in Oman
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 87 companies tracked

RevenueBase identified 87 refinery engineering firms headquartered in Oman as of September 2026 and tracks 5,268 professional contacts across them, including 568 with verified work emails. Muscat is the largest hub.

This list covers refinery engineering firms 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

87Companies

5,268Contacts tracked

568Verified emails

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The 23 largest refinery engineering firms based in Oman

Ranked by team size

Top 23 of 87 refinery engineering firms 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 engineering firms: 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	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
2	TR Engineering Consultancy LLC A Tecnicas Reunidas Group Of Companies	Partial evidence	Alkhuwair, OmanHQ checked Sep 17, 2026	201-500	528 contacts →
	Partial 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
3	Muscat Engineering Consultancy LLC	Partial evidence	Bowsher, OmanHQ checked Sep 17, 2026	501-1,000	409 contacts →
	Partial 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
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	Atlas International Engineering Consultants - Aiec	Partial evidence	Muscat, OmanHQ checked Sep 17, 2026	51-200	90 contacts →
	Partial evidence “Atlas International Engineering Consultants formed in 2006 by our Managing Director Mr.” Source: RevenueBase Database · checked Sep 17, 2026
6	F&m Middle East Engineering Consultancy	Partial evidence	OmanHQ checked Sep 17, 2026	51-200	59 contacts →
	Partial evidence “Founded in 1978 as an engineering consultancy, F&M has rapidly grown, becoming a company at the cutting edge Presently, F&M Ingegneria has taken part in the realization of about…” Source: RevenueBase Database · checked Sep 17, 2026
7	AL Ghalbi International E&c LLC	Partial evidence	العذيبة الجنوبية, OmanHQ checked Sep 17, 2026	1,001-5,000	49 contacts →
	Partial 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
8	Ritaj Engineers & Consultants	Indirect evidence	Al Khoud 7, OmanHQ checked Sep 17, 2026	51-200	41 contacts →
	Indirect evidence “RITAJ started in the year 2010, who are young but one of the fastest growing design firms, equipped with creative talented engineers and proficient in effective employing state of…” Source: RevenueBase Database · checked Sep 17, 2026
9	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
10	Isag Consulting Engineers LLC	Partial evidence	Muscat, OmanHQ checked Sep 17, 2026	51-200	33 contacts →
	Partial evidence “ISAG Consulting Engineers is a Stock Company between Environmental Civil Engineering Consulting Center (Enviro Civec) and Structural & Architectural Group (SAG) and based at Cairo.” Source: RevenueBase Database · checked Sep 17, 2026
11	Petrovision International LLC	Partial evidence	Al Khuwair, OmanHQ checked Sep 17, 2026	11-50	33 contacts →
	Partial 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
12	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
13	Sohar Star United LLC	Indirect evidence	Sohar, OmanHQ checked Sep 17, 2026	201-500	29 contacts →
	Indirect 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
14	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
15	Elixir Engineering	Partial evidence	Muscat, OmanHQ checked Sep 17, 2026	11-50	21 contacts →
	Partial 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
16	Hamed Engineering Services LLC - HES	Partial evidence	Muscat, OmanHQ checked Sep 17, 2026	11-50	21 contacts →
	Partial evidence “Engineering and Consulting Company and a significant player in the Oil & Gas, Energy, Power Generation, Transmission and Distribution Sector.” Source: RevenueBase Database · checked Sep 17, 2026
17	Amran Establishment LLC	Indirect evidence	Muscat, OmanHQ checked Sep 17, 2026	201-500	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
18	Formes	Partial evidence	Muscat, OmanHQ checked Sep 17, 2026	11-50	7 contacts →
	Partial evidence “Formes is a trusted engineering and project management firm providing specialized services across the Buildings, Infrastructure, Oil, and Gas sectors.” Source: RevenueBase Database · checked Sep 17, 2026
19	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
20	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
21	ARQ And Partners Consulting Engineers	Indirect evidence	Muscat, OmanHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence “Consulting Engineers for Civil works, Design and Supervision” Source: RevenueBase Database · checked Sep 17, 2026
22	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
23	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: refinery engineering firms. 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 engineering firms.
Partial evidence: Its own public description names part of refinery engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name refinery engineering firms. 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 23 of 87 refinery engineering firms based in Oman

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Refinery engineering firms based in Oman at a glance

As of Sep 17, 2026

10.8%Verified-email coverage

60.6Average contacts per company

11-50Median size (employees)

50.6%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 87 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 engineering firms, 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 engineering firms”. 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 engineering firms), 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 engineering firms, 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, 568 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 engineering firms by metro

Refinery engineering firms in Muscat44

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 engineering firms, 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 engineering firms are there based in Oman?

RevenueBase identified 87 refinery engineering firms 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?

Arabian Industries, headquartered in Oman, tops this list with the largest team on record.

Which city has the most refinery engineering firms?

Muscat leads with 44 headquartered companies, followed by Al Khuwair Muscat (3) and Muscat Muscat Governorate (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 568 verified decision-maker contacts tracked across these 87 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.