Company lists · Data refreshed November 2026

Top 20 Water quality engineering consultants based in Saudi Arabia

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 96 companies tracked

RevenueBase identified 96 company matches for water quality engineering consultants associated with Saudi Arabia as of November 2026 and tracks 2,931 professional contacts across them, including 474 with verified work emails. Riyadh is the largest hub.

This list covers company matches for water quality engineering consultants associated with Saudi Arabia, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

96Companies

2,931Contacts tracked

474Verified emails

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The 20 largest water quality engineering consultants based in Saudi Arabia

Ranked by team size

Top 20 of 96 company matches for water quality engineering consultants based in Saudi Arabia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Abdullah Ibrahim AL Sayegh And Sons Company	Exact match	Riyadh, Saudi ArabiaHQ recorded Nov 6, 2026	1,001-5,000	358 contacts →
	Exact match “Established in 1964, Abdullah Ibrahim Al Sayegh and Sons Company a Closed Joint Stock Co.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Ahmed Al-Mousa Engineering	Exact match	Al Khobar, Saudi ArabiaHQ recorded Nov 6, 2026	501-1,000	202 contacts →
	Exact match “Ahmed AlMousa Engineering is a distinguished engineering house of expertise specializing in supervision services, built upon the highest standards of efficiency and quality.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Osaimi Geotechnic Company	Exact match	Khobar, Saudi ArabiaHQ recorded Nov 6, 2026	201-500	168 contacts →
	Exact match “OEO is a 100 % Saudi engineering consulting office owned by Dr.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Alrabiah Consulting Engineers	Exact match	Dammam, Saudi ArabiaHQ recorded Nov 6, 2026	201-500	146 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Bureau Égyptien DE Conseils Techniques Bect	Exact match	Al Maseef District, Saudi ArabiaHQ recorded Nov 6, 2026	201-500	80 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Mohammed Omar Jazzar Consulting Engineers Company	Exact match	Riyadh, Saudi ArabiaHQ recorded Nov 6, 2026	11-50	71 contacts →
	Exact match “Omar Al Jazzar Consulting Engineers is a civil engineering company based out of Omar Jazzar Consulting Engineers Building, Riyadh, Riyadh, Saudi Arabia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Fouad Al-Saleh & Khaled Al-Dhowalia Environmental & Engineering Consultants Company	Exact match	Riyadh, Saudi ArabiaHQ recorded Nov 6, 2026	201-500	69 contacts →
	Exact match “Fouad Al-Saleh & Khaled Al-Dhowalia Environmental & Engineering Consultants Co.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Technical Development Solutions	Exact match	Riyadh, Saudi ArabiaHQ recorded Nov 6, 2026	501-1,000	57 contacts →
	Exact match “We are one of the companies within Al Mousa Group, a Saudi Arabian conglomerate with over 50 years of experience in the Saudi market.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Tahalof Engineering	Exact match	Jeddah, Saudi ArabiaHQ recorded Nov 6, 2026	51-200	48 contacts →
	Exact match “Tahalof Engineering is a consulting firm serving government and private clients in Saudi Arabia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	IWP II	Exact match	Dammam, Saudi ArabiaHQ recorded Nov 6, 2026	51-200	30 contacts →
	Exact match “We specialized on water and environmental solutions and management.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Gulf Advanced Control Systems Gacs Arabia	Exact match	Ras Tanura, Saudi ArabiaHQ recorded Nov 6, 2026	51-200	28 contacts →
	Exact match “G.A.C.S Arabia is a Design, Engineering, Environmental Monitoring, Systems Integrator & Testing Services Provider since 2004.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Inmaa Albilad	Exact match	Dammam, Saudi ArabiaHQ recorded Nov 6, 2026	201-500	28 contacts →
	Exact match “Inmaa Albilad Contracting Company Building the Future of Saudi Arabia Inmaa Albilad Contracting Company is a multi-disciplinary contracting firm established in 2011.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Ahenvironmental Consulting Company	Exact match	Khobar, Saudi ArabiaHQ recorded Nov 6, 2026	11-50	21 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Skado Gocsa & Partner's For Engineering Consultancy Co. LTD	Exact match	Jeddah, Saudi ArabiaHQ recorded Nov 6, 2026	11-50	20 contacts →
	Exact match “Skado Gocsa & Partner's is an international multi-disciplinary engineering consultancy based in Jeddah, Kingdom of Saudi Arabia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Aqua Arabia	Exact match	Riyadh, Saudi ArabiaHQ recorded Nov 6, 2026	51-200	19 contacts →
	Exact match “Aqua Arabia was created with the goal of providing high-quality environmental services world-wide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Sameer Al-Marzouki Engineering Consultants	Exact match	Jeddah, Saudi ArabiaHQ recorded Nov 6, 2026	11-50	17 contacts →
	Exact match “We are dedicated to helping our clients establish contamination-controlled environments in their facilities by utilizing the latest and emerging technologies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Tira Gulf Trading	Exact match	Jeddah, Saudi ArabiaHQ recorded Nov 6, 2026	51-200	14 contacts →
	Exact match “Tira Gulf is a Water Treatment and Environmental Engineering company that specializes in engineering, procurement, construction, commissioning and operation of water and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Modern Designing Consulting Engineering Office	Exact match	Al Khobar, Saudi ArabiaHQ recorded Nov 6, 2026	1-10	13 contacts →
	Exact match “Modern Designing Consulting Engineering Office is a Mechanical or Industrial Engineering company located in Saudi Arabia, 32270, King Abdul-Aziz Street, Modern Designing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Danat Saudia	Exact match	Jubail, Saudi ArabiaHQ recorded Nov 6, 2026	11-50	12 contacts →
	Exact match “Danat Saudia is a Saudi-owned Solutions Provider that offers the Best Technical options for Industrial Water and Waste Treatment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Special Environmental Projects Company	Exact match	Khobar, Saudi ArabiaHQ recorded Nov 6, 2026	11-50	10 contacts →
	Exact match “Special Environmental Projects (SEP) is a Saudi Arabian- based, privately owned environmental firm established in 2006, in Al-Khobar, Saudi Arabia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “water quality engineering consultants”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 20 of 96 water quality engineering consultants based in Saudi Arabia

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Water quality engineering consultants based in Saudi Arabia at a glance

As of Nov 6, 2026

16.2%Verified-email coverage

30.5Average contacts per company

51-200Median size (employees)

44.8%Largest-city concentration · Riyadh

Nov 6, 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

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 96 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Saudi Arabia whose business descriptions match “water quality engineering consultants” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 474 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Water quality engineering consultants by metro

Water quality engineering consultants in Riyadh43

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “water quality engineering consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water quality engineering consultants are there based in Saudi Arabia?

RevenueBase identified 96 company matches for water quality engineering consultants associated with Saudi Arabia as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Abdullah Ibrahim AL Sayegh And Sons Company tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most water quality engineering consultants?

Riyadh leads with 43 company records, followed by Dammam (8) and Al Khobar (7).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 474 professional contacts with verified work emails tracked across these 96 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.