Company lists · Data refreshed September 2026

Top 9 Water system maintenance contractors based in Saudi Arabia

RevenueBase identified 35 water system maintenance contractors headquartered in Saudi Arabia as of September 2026 and tracks 747 professional contacts across them, including 104 with verified work emails. Riyadh is the largest hub.

This list covers water system maintenance contractors 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 19, 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 19, 2026 86% judged on-target in blind review
35Companies
747Contacts tracked
104Verified emails
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The 9 largest water system maintenance contractors based in Saudi Arabia

Ranked by team size
Top 9 of 35 water system maintenance contractors based in Saudi Arabia, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to water system maintenance 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceRiyadh, Saudi ArabiaHQ checked Sep 19, 20261,001-5,000347 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
2Strong evidenceDammam, Saudi ArabiaHQ checked Sep 19, 202611-5055 contacts →

Strong evidence

“Interpole is a new company with vast experience in service and maintenance organization for heavy electrical and mechanical equipment in the Oil & Gas, water and Industrial Local…”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 19, 2026201-50042 contacts →

Partial 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 19, 2026
4Indirect evidenceJeddah, Saudi ArabiaHQ checked Sep 19, 202651-20033 contacts →

Indirect evidence

“AlMaymanah, established in 1990 with more than 170 nos.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceالرياض, Saudi ArabiaHQ checked Sep 19, 202611-5021 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
6Strong evidenceRiyadh, Saudi ArabiaHQ checked Sep 19, 2026501-1,00013 contacts →

Strong evidence

“WTS was established in Riyadh 2005, as a specilized contractor in Water and waste water piping and treatments.”

Source: RevenueBase Database · checked Sep 19, 2026
7Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 19, 202651-20011 contacts →

Partial evidence

“About Us Marasah is a specialized industrial services company based in Saudi Arabia, delivering high-performance maintenance and rehabilitation solutions to critical…”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceDammam, Saudi ArabiaHQ checked Sep 19, 202611-507 contacts →

Indirect evidence

“Al-Riyadah Al-Oula Valve Service Company (RAVSCO) based in Dammam City, a part of AL OTHMAN Holdings Group with more than 25 years existence in Saudi Arabia.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceAl Jubail, Saudi ArabiaHQ checked Sep 19, 20261-105 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026

Showing 9 of 35 water system maintenance contractors based in Saudi Arabia

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Water system maintenance contractors based in Saudi Arabia at a glance

As of Sep 19, 2026
13.9%Verified-email coverage
21.3Average contacts per company
51-200Median size (employees)
25.7%Largest-city concentration · Riyadh
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
4
11-50
13
51-200
12
201-500
2
501-1,000
2
1,001-5,000
1
5,001-10,000
1

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 35 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 system maintenance 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 Saudi Arabia whose own description of what they do matches “water system maintenance 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 water system maintenance 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 water system maintenance contractors, 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, 104 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 19, 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

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 system maintenance 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 water system maintenance contractors are there based in Saudi Arabia?

RevenueBase identified 35 water system maintenance contractors 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?

Abdullah Ibrahim AL Sayegh And Sons Company, headquartered in Riyadh, tops this list with the largest team on record.

Which city has the most water system maintenance contractors?

Riyadh leads with 9 headquartered companies, followed by Dammam (4) and Khobar (2).

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 104 verified decision-maker contacts tracked across these 35 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 19, 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.