Company lists · Data refreshed November 2026

Top 18 Engineering companies based in Riyadh, Saudi Arabia

This directory lists 873 engineering companies based in Riyadh, Saudi Arabia, with 48,146 contacts and 6,189 email addresses. The list includes companies across engineering disciplines. Use it to identify potential suppliers, partners, and sales prospects as of November 2026. Across Saudi Arabia, Riyadh is the largest hub for this category.

Engineering companies apply scientific, mathematical, and technical principles to design, develop, test, and manage products, systems, structures, or industrial processes. This list covers companies that provide engineering design, consulting, testing, project management, or related technical services. Ranked by team size, largest first. Data current as of November 6, 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 Nov 6, 2026 86% judged on-target in blind review
873Companies
48,146Contacts tracked
6,189Verified emails
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The 18 largest engineering companies based in Riyadh, Saudi Arabia

Ranked by team size
Top 18 of 873 engineering companies based in Riyadh, Saudi Arabia, ranked by team size, largest first. Data refreshed Nov 6, 2026. RevenueBase Smart Search rates how each company's information relates to engineering 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 202610001+3,767 contacts →

Strong evidence

“El Seif Engineering Contracting (ESEC) is one of the leading construction companies in Saudi Arabia and has a diverse portfolio of projects delivered in the Middle East.”

Source: RevenueBase Database · checked Nov 6, 2026
2Strong evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 20261,001-5,0002,975 contacts →

Strong evidence

“Founded in the mid-1970s by Prince Turki bin Abdullah bin Abdulrahman Al Saud, a forward-thinking engineering pioneer, Dar Al Riyadh has evolved into the Kingdom's leading…”

Source: RevenueBase Database · checked Nov 6, 2026
3Indirect evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 20265,001-10,0001,900 contacts →

Indirect evidence

“ABV Rock Group is a construction contractor that operates in several interlinked sectors covering buildings and civil works, and acts as a principal and specialist contractor.”

Source: RevenueBase Database · checked Nov 6, 2026
4Strong evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 20261,001-5,0001,564 contacts →

Strong evidence

“DAR Engineering is a leading multidisciplinary consultancy firm providing design, architecture, engineering, project management, construction management and planning services…”

Source: RevenueBase Database · checked Nov 6, 2026
5Indirect evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 202610001+1,218 contacts →

Indirect evidence

“BEC Arabia has emerged as one of the construction industry’s leading players.”

Source: RevenueBase Database · checked Nov 6, 2026
6Strong evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 20261,001-5,0001,156 contacts →

Strong evidence

“Zuhair Fayez stands as the region's foremost engineering and consulting firm, renowned for our innovative approach in architecture, project management, and oil and gas services.”

Source: RevenueBase Database · checked Nov 6, 2026
7Indirect evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 20265,001-10,0001,110 contacts →

Indirect evidence

“Al Arrab Contracting Company (ACC) is a class “A” General Contracting Group in Kingdom of Saudi Arabia established in 1983 with Head Office in Riyadh.”

Source: RevenueBase Database · checked Nov 6, 2026
8Indirect evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 202610001+736 contacts →

Indirect evidence

“Mohammed Ali Al swailem Group (MASCO) is a general contractor specialized in different field of construction that range from infrastructure to building, water, environmental and…”

Source: RevenueBase Database · checked Nov 6, 2026
9Strong evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 20261,001-5,000729 contacts →

Strong evidence

“Pioneering modular engineering since 1967, Red Sea International (RSI), is known for its strong record and international expertise.”

Source: RevenueBase Database · checked Nov 6, 2026
10Strong evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 2026501-1,000470 contacts →

Strong evidence

“Citiscape, a subsidiary of Abunayyan Holding, is a leading Engineering, Procurement, Infrastructure, and Construction company specializing in the design, execution, and…”

Source: RevenueBase Database · checked Nov 6, 2026
11Indirect evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 2026501-1,000430 contacts →

Indirect evidence

“UNIMAC is a specialized heavy civil contracting company that focuses on the design, construction, and maintenance of infrastructure.”

Source: RevenueBase Database · checked Nov 6, 2026
12Indirect evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 20261,001-5,000358 contacts →

Indirect evidence

“Established in 1964, Abdullah Ibrahim Al Sayegh and Sons Company a Closed Joint Stock Co.”

Source: RevenueBase Database · checked Nov 6, 2026
13Indirect evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 20265,001-10,000309 contacts →

Indirect evidence

“In 1979, the company has set its first steps.”

Source: RevenueBase Database · checked Nov 6, 2026
14Strong evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 2026201-500291 contacts →

Strong evidence

“Highway Engineering : design supervision, Geotechnical and Materials Labs, Traffic Study and Pavement Evaluation technologies.”

Source: RevenueBase Database · checked Nov 6, 2026
15Indirect evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 2026501-1,000268 contacts →

Indirect evidence

“We have started by a constant persistence and a hectic race to achieve advanced positions in the field of contracting, we have gone through all the stages, we have passed the…”

Source: RevenueBase Database · checked Nov 6, 2026
16Indirect evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 2026501-1,000267 contacts →

Indirect evidence

“We are MERAS International Investment Company: We accelerate time and keep up with the latest technologies and innovations with the advancement of digital developments in…”

Source: RevenueBase Database · checked Nov 6, 2026
17Strong evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 2026201-500259 contacts →

Strong evidence

“Imar, Urban Consultants is a multidisciplinary consulting firm offering a wide range of services including Urban Planning and Design, Architectural and Engineering Design…”

Source: RevenueBase Database · checked Nov 6, 2026
18Indirect evidenceRiyadh, Saudi ArabiaHQ checked Nov 6, 2026501-1,000250 contacts →

Indirect evidence

“Al Babtain LeBLANC Telecommunication Systems Limited,(ABL) is an international company which is engaged in providing turnkey solutions for telecoms, broadcast, defence, security…”

Source: RevenueBase Database · checked Nov 6, 2026

Showing 18 of 873 engineering companies based in Riyadh, Saudi Arabia

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Engineering companies based in Riyadh, Saudi Arabia at a glance

As of Nov 6, 2026
12.9%Verified-email coverage
55.2Average contacts per company
51-200Median size (employees)
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
91
11-50
269
51-200
267
201-500
117
501-1,000
66
1,001-5,000
44
5,001-10,000
11
10001+
8

Email recency for this list is measured across the whole Saudi Arabia list rather than for Riyadh, so it is reported there. Company counts and contact totals on this page are exact for Riyadh, over 873 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 engineering 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.
What qualifies
Companies headquartered in Riyadh, Saudi Arabia whose own description of what they do matches “engineering 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 engineering 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 engineering companies, and records with no verified work email. Companies headquartered outside Riyadh 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, 6,189 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 November 6, 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.

Frequently asked

How many engineering companies are based in Riyadh, Saudi Arabia?

The directory lists 873 engineering companies based in Riyadh, Saudi Arabia as of November 2026.

What services do engineering companies provide?

Engineering companies provide services such as design, consulting, testing, project management, and technical support across disciplines and industries.

How can I find contacts at engineering companies?

This directory includes 48,146 contacts and 6,189 email addresses associated with engineering companies.

Ready to reach these companies? Verified emails and direct dials for all 873 engineering companies based in Riyadh, Saudi Arabia. Start with a free account, no credit card.

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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.