Company lists · Data refreshed September 2026

Top 25 Water engineering firms based in Saudi Arabia

Name: Water engineering firms based in Saudi Arabia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 162 companies tracked

RevenueBase identified 162 water engineering firms headquartered in Saudi Arabia as of September 2026 and tracks 6,171 professional contacts across them, including 535 with verified work emails. Riyadh is the largest hub.

This list covers water engineering firms headquartered in 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 21, 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 21, 2026 86% judged on-target in blind review

162Companies

6,171Contacts tracked

535Verified emails

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The 25 largest water engineering firms based in Saudi Arabia

Ranked by team size

Top 25 of 162 water engineering firms based in Saudi Arabia, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to water 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	MASCO	Partial evidence	Riyadh, Saudi ArabiaHQ checked Sep 21, 2026	10001+	907 contacts →
	Partial 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 Sep 21, 2026
2	Civil Works Company LTD	Indirect evidence	Al Raka Al Jenobiah, Saudi ArabiaHQ checked Sep 21, 2026	5,001-10,000	713 contacts →
	Indirect evidence “CWC is part of the Al Awael Construction Group which is 100% owned by Rashed Abdul Rahman Al Rashed group of companies (RAR), a well-known business conglomerate in the Kingdom of…” Source: RevenueBase Database · checked Sep 21, 2026
3	MGC	Indirect evidence	Al Andalus, Saudi ArabiaHQ checked Sep 21, 2026	1,001-5,000	623 contacts →
	Indirect evidence “Mutlaq Al-Ghowairi Contracting Company (MGC) has been a cornerstone of Saudi Arabia’s infrastructure development since 1977.” Source: RevenueBase Database · checked Sep 21, 2026
4	Abdullah Ibrahim AL Sayegh And Sons Company	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 21, 2026	1,001-5,000	347 contacts →
	Indirect evidence “Established in 1964, Abdullah Ibrahim Al Sayegh and Sons Company a Closed Joint Stock Co.” Source: RevenueBase Database · checked Sep 21, 2026
5	Saudi Engineering Group International	Partial evidence	Dammam, Saudi ArabiaHQ checked Sep 21, 2026	501-1,000	303 contacts →
	Partial evidence “Saudi Engineering Group International (SEGI) a multidisciplinary engineering and PMC service provider based in Dammam, Eastern Region with existing support offices in Southern…” Source: RevenueBase Database · checked Sep 21, 2026
6	Saudi Tumpane	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 21, 2026	501-1,000	156 contacts →
	Indirect evidence “Saudi Tumpane carries out public infrastructure and electro-mechanical works in Saudi Arabia.” Source: RevenueBase Database · checked Sep 21, 2026
7	Alrabiah Consulting Engineers	Partial evidence	Dammam, Saudi ArabiaHQ checked Sep 21, 2026	201-500	120 contacts →
	Partial evidence “Alrabiah Consulting Engineers (ARE) is a multi-disciplinary professional consulting engineering firm based in Saudi Arabia with head office in Dammam and regional offices in…” Source: RevenueBase Database · checked Sep 21, 2026
8	Fouad Al-Saleh & Khaled Al-Dhowalia Environmental & Engineering Consultants Company	Partial evidence	Riyadh, Saudi ArabiaHQ checked Sep 21, 2026	201-500	109 contacts →
	Partial evidence “Fouad Al-Saleh & Khaled Al-Dhowalia Environmental & Engineering Consultants Co.” Source: RevenueBase Database · checked Sep 21, 2026
9	Anelksa	Indirect evidence	Jeddah, Saudi ArabiaHQ checked Sep 21, 2026	1,001-5,000	104 contacts →
	Indirect evidence “ANELKSA was found in 2010 in Jeddah/KSA.” Source: RevenueBase Database · checked Sep 21, 2026
10	Innovative Water Applications Co. Iwac	Partial evidence	Al Nahdah District, Saudi ArabiaHQ checked Sep 21, 2026	11-50	98 contacts →
	Partial evidence “IWAC is a Saudi based Engineering co.” Source: RevenueBase Database · checked Sep 21, 2026
11	Sabbagh Engineering Consultants & Associates	Partial evidence	Jeddah, Saudi ArabiaHQ checked Sep 21, 2026	51-200	82 contacts →
	Partial evidence “Sabbagh Engineering Consultants & Associates (SECA) is a Saudi multidisciplinary consultancy based in Jeddah, and operating through out the Kingdome vast regions.” Source: RevenueBase Database · checked Sep 21, 2026
12	Bureau Égyptien DE Conseils Techniques Bect	Indirect evidence	Al Maseef District, Saudi ArabiaHQ checked Sep 21, 2026	201-500	80 contacts →
	Indirect evidence “BECT is a House of Expertise, established in Egypt since 1989, ventured in KSA in 2006 as a limited liability partnership, founded by two partners, Prof.” Source: RevenueBase Database · checked Sep 21, 2026
13	Mohammed Omar Jazzar Consulting Engineers Company	Partial evidence	Riyadh, Saudi ArabiaHQ checked Sep 21, 2026	11-50	72 contacts →
	Partial evidence “Omar Al Jazzar Consulting Engineers is a civil engineering company based out of Omar Jazzar Consulting Engineers Building, Riyadh, Riyadh, Saudi Arabia.” Source: RevenueBase Database · checked Sep 21, 2026
14	Rawafid Industrial	Partial evidence	Jeddah, Saudi ArabiaHQ checked Sep 21, 2026	201-500	67 contacts →
	Partial evidence “Rawafid Industrial designs and constructs high quality, cutting-edge, safe, and highly efficient water facilities.” Source: RevenueBase Database · checked Sep 21, 2026
15	Technical Development Solutions	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 21, 2026	501-1,000	58 contacts →
	Indirect evidence “We are one of the companies within Al Mousa Group, a Saudi Arabian conglomerate with over 50 years of experience in the Saudi market.” Source: RevenueBase Database · checked Sep 21, 2026
16	Al-Mousa Trading	Strong evidence	Riyadh, Saudi ArabiaHQ checked Sep 21, 2026	201-500	42 contacts →
	Strong evidence “Al Mousa Trading Company, part of Al Mousa Limited Group, leverages over twenty years of expertise to provide innovative engineering solutions in water, energy, and infrastructure.” Source: RevenueBase Database · checked Sep 21, 2026
17	Almaymanah Group	Indirect evidence	Jeddah, Saudi ArabiaHQ checked Sep 21, 2026	51-200	33 contacts →
	Indirect evidence “AlMaymanah, established in 1990 with more than 170 nos.” Source: RevenueBase Database · checked Sep 21, 2026
18	Nour T. Beydoun Contracting CO	Indirect evidence	Makkah, Saudi ArabiaHQ checked Sep 21, 2026	201-500	31 contacts →
	Indirect evidence “Established in 1991 Nour T.” Source: RevenueBase Database · checked Sep 21, 2026
19	Water Secret Contracting	Partial evidence	Jeddah, Saudi ArabiaHQ checked Sep 21, 2026	51-200	28 contacts →
	Partial evidence “WSCO is an enterprise-level water and waste-water treatment company offering a complete Production and service cycle of innovative design, integration and fabrication of water…” Source: RevenueBase Database · checked Sep 21, 2026
20	WJ Saudi LTD	Indirect evidence	Jeddah, Saudi ArabiaHQ checked Sep 21, 2026	51-200	27 contacts →
	Indirect evidence “About Part of the WJ Group, WJ Saudi leads the field in design, installation, and maintenance of dewatering systems for construction sites.” Source: RevenueBase Database · checked Sep 21, 2026
21	AJI	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 21, 2026	1,001-5,000	27 contacts →
	Indirect evidence “We orchestrate community-driven progress.” Source: RevenueBase Database · checked Sep 21, 2026
22	Inmaa Albilad	Indirect evidence	Dammam, Saudi ArabiaHQ checked Sep 21, 2026	201-500	25 contacts →
	Indirect evidence “Inmaa Albilad Contracting Company Building the Future of Saudi Arabia Inmaa Albilad Contracting Company is a multi-disciplinary contracting firm established in 2011.” Source: RevenueBase Database · checked Sep 21, 2026
23	Sadim Almajd Contracting Company	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 21, 2026	501-1,000	21 contacts →
	Indirect 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 21, 2026
24	North Diamond Contracting Company NDC	Indirect evidence	Duba, Saudi ArabiaHQ checked Sep 21, 2026	201-500	21 contacts →
	Indirect evidence “North Diamond Contracting Company is concerned with infrastructure construction of roads, streets and sidewalks, construction of bridges, construction of stations and main lines…” Source: RevenueBase Database · checked Sep 21, 2026
25	Ahenvironmental Consulting Company	Indirect evidence	Khobar, Saudi ArabiaHQ checked Sep 21, 2026	11-50	20 contacts →
	Indirect evidence “AH Environmental Services firm based in Khobar A member of Al Habri Group of companies Consists of a dedicated team of professionals with advanced degrees in environmental…” Source: RevenueBase Database · checked Sep 21, 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: water 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 water engineering firms.
Partial evidence: Its own public description names part of water engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water 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 25 of 162 water engineering firms based in Saudi Arabia

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Water engineering firms based in Saudi Arabia at a glance

As of Sep 21, 2026

8.7%Verified-email coverage

38.1Average contacts per company

51-200Median size (employees)

45.1%Largest-city concentration · Riyadh

Sep 21, 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 Saudi Arabia, so it is reported there. Company counts and contact totals on this page are exact for Saudi Arabia, over 162 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 water 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 Saudi Arabia whose own description of what they do matches “water 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 water 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 water engineering firms, and records with no verified work email. Companies headquartered outside Saudi Arabia 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, 535 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 21, 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.

Water engineering firms by metro

Water engineering firms in Riyadh73

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 water 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 water engineering firms are there based in Saudi Arabia?

RevenueBase identified 162 water engineering firms headquartered in 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?

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

Which city has the most water engineering firms?

Riyadh leads with 73 headquartered companies, followed by Al Khobar (9) and Jeddah (9).

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 535 verified decision-maker contacts tracked across these 162 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 21, 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.