Company lists · Data refreshed September 2026

Top 20 Infrastructure engineering staffing companies based in Riyadh, Saudi Arabia

RevenueBase identified 156 infrastructure engineering staffing companies headquartered in Riyadh, Saudi Arabia as of September 2026 and tracks 4,834 professional contacts across them, including 591 with verified work emails. Across Saudi Arabia, Riyadh is the largest hub for this category.

This list covers infrastructure engineering staffing companies headquartered in Riyadh, Saudi Arabia, 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 28, 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 28, 2026 86% judged on-target in blind review
156Companies
4,834Contacts tracked
591Verified emails
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The 20 largest infrastructure engineering staffing companies based in Riyadh, Saudi Arabia

Ranked by team size
Top 20 of 156 infrastructure engineering staffing companies based in Riyadh, Saudi Arabia, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure engineering staffing 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
1Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 2026501-1,000403 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
2Strong evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 20261,001-5,000241 contacts →

Strong evidence

“With over 60 years of expertise, AJi designs smart to build better, delivering progressive solutions in architecture, engineering, and total infrastructure to empower communities.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 20261,001-5,000209 contacts →

Indirect evidence

“The Company was founded in 1398 Hijri corresponding to1978 by Sheikh / Finjal Bin Sultan Elotibi.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 2026501-1,000202 contacts →

Partial evidence

“Mfaheem Al Emar one of the largest construction and engineering firms in Saudi Arabia, where the company offers a variety of services to its clients, such as construction, design…”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 2026201-500135 contacts →

Partial evidence

“Saudi Tech – Engineering Consultants, was founded in 1977 (1397H).”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 202651-200104 contacts →

Partial evidence

“For over 18 years, Crown Consult has been a leading international engineering firm, transforming the landscape with innovative and sustainable solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 2026201-50064 contacts →

Partial evidence

“ebdaasa is one of the top consulting companies in Saudi Arabia with more than 15 years of experience, seeking to provide outstanding and quality engineering and consulting…”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 202611-5063 contacts →

Partial evidence

“Specialist Structural and Geotechnical Engineering Contractors.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 202651-20063 contacts →

Partial evidence

“ALMUHANDIS NIZAR KURDI AMNK is a civil engineering company based out of Riyadh, Saudi Arabia”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 20261,001-5,00033 contacts →

Partial evidence

“Dar Metal Industry Company Limited is a civil engineering company based out of Dar Metal Industry Company Limited Building, Riyadh, Riyadh, Saudi Arabia.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 202651-20031 contacts →

Indirect evidence

“Externa Arabia is built on the foundation of successful partnerships among shareholders across diverse market segments and areas of expertise.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 202651-20031 contacts →

Partial evidence

“Fuel includes consultants engineers in several fields related to engineering consulting- from design and planning to supervision and achievement.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 202611-5030 contacts →

Partial evidence

“Stradaverde is a multi-disciplinary firm that provides a wide range of services covering Architecture and Master Planning Services, Structural & Bridges Engineering…”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 2026201-50027 contacts →

Partial evidence

“In response to the rising demand for quality architectural and engineering services in the late 70s, East Consulting Engineering Company (ECEC) has been established in the year…”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 2026501-1,00021 contacts →

Partial evidence

“Sadim AlMajd Contracting Company provides comprehensive services in the field of infrastructure construction and maintenance, meeting the needs of various projects, starting from…”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 202651-20021 contacts →

Partial evidence

“Melcon is a reputable construction and engineering company in the kingdom of Saudi Arabia with a long list of prestigious projects.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 2026201-50019 contacts →

Partial evidence

“NAMARIQ Engineering Consultants is a firm which is specialized in different engineering sectors in order to provide the best solutions and services that are related to structural…”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 202611-5018 contacts →

Indirect evidence

“Tesmec Saudi Arabia, established in 2010, is a Tesmec Group company with the aim of contributing to build the future landscape of Saudi Arabia with innovative excavation…”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 202651-20017 contacts →

Indirect evidence

“Nal AlJazera is a Saudi corporation established in 1991.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 2026501-1,00015 contacts →

Indirect evidence

“Economic Center Contracting Co.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 20 of 156 infrastructure engineering staffing companies based in Riyadh, Saudi Arabia

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Infrastructure engineering staffing companies based in Riyadh, Saudi Arabia at a glance

As of Sep 28, 2026
12.2%Verified-email coverage
31.0Average contacts per company
51-200Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
16
11-50
38
51-200
42
201-500
26
501-1,000
20
1,001-5,000
12
5,001-10,000
2

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 156 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 infrastructure engineering staffing 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 “infrastructure engineering staffing 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 infrastructure engineering staffing 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 infrastructure engineering staffing 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, 591 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 28, 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.

Infrastructure engineering staffing companies by metro in Saudi Arabia

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 infrastructure engineering staffing companies, 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 infrastructure engineering staffing companies are there based in Riyadh, Saudi Arabia?

RevenueBase identified 156 infrastructure engineering staffing companies headquartered in Riyadh, Saudi Arabia 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?

Unimac, headquartered in Riyadh, tops this list with the largest team on record.

Which city in Saudi Arabia has the most infrastructure engineering staffing companies?

Riyadh leads Saudi Arabia with 156 headquartered companies, followed by Dammam (28) and Makkah (22).

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 591 verified decision-maker contacts tracked across these 156 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 28, 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.