Company lists · Data refreshed September 2026

Top 25 Wastewater engineering and design firms based in Türkiye

Name: Wastewater engineering and design firms based in Türkiye
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 271 companies tracked

RevenueBase identified 271 wastewater engineering and design firms headquartered in Türkiye as of September 2026 and tracks 2,749 professional contacts across them, including 253 with verified work emails. Istanbul is the largest hub.

This list covers wastewater engineering and design firms headquartered in Türkiye, 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

271Companies

2,749Contacts tracked

253Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest wastewater engineering and design firms based in Türkiye

Ranked by team size

Top 25 of 271 wastewater engineering and design firms based in Türkiye, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to wastewater engineering and design 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	Esli Pollet Water Group	Indirect evidence	Antalya, TürkiyeHQ checked Sep 19, 2026	201-500	221 contacts →
	Indirect evidence “Esli PWG Ltd.” Source: RevenueBase Database · checked Sep 19, 2026
2	Temelsu International Engineering Services INC	Partial evidence	Ankara, TürkiyeHQ checked Sep 19, 2026	201-500	188 contacts →
	Partial evidence “TEMELSU is a well known Turkish consulting engineering company which provides multidisciplinary engineering services, locally and internationally, since its foundation in 1969.” Source: RevenueBase Database · checked Sep 19, 2026
3	AKA SU Teknoloji̇leri̇	Indirect evidence	Ankara, TürkiyeHQ checked Sep 19, 2026	51-200	60 contacts →
	Indirect evidence “AKA SU» şirketi 1998 yılında kuruldu.” Source: RevenueBase Database · checked Sep 19, 2026
4	Clean Tank Engineering	Indirect evidence	Aliaga, TürkiyeHQ checked Sep 19, 2026	201-500	60 contacts →
	Indirect evidence “CleanTank Mühendislik - Mühendislik Hizmeti - Kumlama ve Boyama Hizmeti - API 650 Tank İmalatları - API 653 Tank Bakım Onarım Hizmeti CleanTank Mekanik - Endüstriyel Borulama…” Source: RevenueBase Database · checked Sep 19, 2026
5	Artemis Arıtım	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 19, 2026	51-200	56 contacts →
	Indirect evidence “1998 yılından günümüze çevre koruma konusunda faaliyet gösteren Artemis Arıtım uluslararası bilgi ve tecrübeye sahip mühendisleri ve akademik danışmanlarıyla birçok başarılı…” Source: RevenueBase Database · checked Sep 19, 2026
6	Enta Mühendi̇sli̇k	Indirect evidence	Beykoz, TürkiyeHQ checked Sep 19, 2026	51-200	34 contacts →
	Indirect evidence “ENTA Mühendislik; iyi kalite, süreklilik, yenilikçi yapı ve teknolojik ilerleme gerekliliği çerçevesinde standartlarına ağırlık vererek ve “ENTA MÜHENDİSLİK” kalitesini tescil…” Source: RevenueBase Database · checked Sep 19, 2026
7	Kazanci Environmental Technics Kazancı Çevre Tekniği	Partial evidence	Istanbul, TürkiyeHQ checked Sep 19, 2026	11-50	31 contacts →
	Partial evidence “Kazancı Çevre Tekniği is an engineering-driven environmental technologies company delivering sustainable and high-efficiency solutions for diverse industries.” Source: RevenueBase Database · checked Sep 19, 2026
8	Atech Proses	Indirect evidence	Adana, TürkiyeHQ checked Sep 19, 2026	51-200	29 contacts →
	Indirect evidence “ATECH Proses is established as a Turkish private company in the field of water and environmental technologies in 2016.” Source: RevenueBase Database · checked Sep 19, 2026
9	ASTIM	Strong evidence	Kocaeli, TürkiyeHQ checked Sep 19, 2026	51-200	28 contacts →
	Strong evidence “5 CONTINENTS 30 COUNTRIES 800 PROJECTS Astim is established and organized to design and manufacture various mechanical equipment for municipal and industrial water & wastewater…” Source: RevenueBase Database · checked Sep 19, 2026
10	Suiş Proje	Indirect evidence	Cankaya, TürkiyeHQ checked Sep 19, 2026	11-50	26 contacts →
	Indirect evidence “Dams, Hydropower plants, Irrigation, Water supply, Water treatment, Flood protection” Source: RevenueBase Database · checked Sep 19, 2026
11	ETC Çevre Teknolojileri	Indirect evidence	Konutkent Çankaya, TürkiyeHQ checked Sep 19, 2026	11-50	22 contacts →
	Indirect evidence “ETC, 2004 yılında faaliyetlerine başlamış olup çevre danışmanlık, ÇED Raporları, Proje Tanıtım Dosyaları hazırlanması, atıksu arıtma tesisleri yapımı, işletme ve bakım hizmetleri…” Source: RevenueBase Database · checked Sep 19, 2026
12	Vatek Çevre Teknoloji̇leri̇	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 19, 2026	11-50	19 contacts →
	Indirect evidence “VATEK Environmental Technologies acts with the philosophy of customer satisfaction and water gives life to the consciousness of production.” Source: RevenueBase Database · checked Sep 19, 2026
13	Gesu Environmental Technologies	Partial evidence	Bursa, TürkiyeHQ checked Sep 19, 2026	11-50	18 contacts →
	Partial evidence “Wastewater Treatment Systems” Source: RevenueBase Database · checked Sep 19, 2026
14	Durko Çevre Enerji Tekniği VE Tic. A.Ş	Indirect evidence	Besiktas, TürkiyeHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “Durko Çevre Enerji Tekniği ve Tic.” Source: RevenueBase Database · checked Sep 19, 2026
15	EKE Endustri	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “EKE ENDUSTRI LTD is established in February 2004.” Source: RevenueBase Database · checked Sep 19, 2026
16	Ökotek Çevre Teknolojisi VE Kimya Sanayi A.Ş	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “Ökotek, 1990 yılında endüstri kuruluşlarının problemlerine çözümler sunmak amacıyla kuruldu.” Source: RevenueBase Database · checked Sep 19, 2026
17	Bilgi Çevre Mühendislik	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 19, 2026	1-10	13 contacts →
	Indirect evidence “Bilgi Çevre, 2010 yılından bu yana Çevre Danışmanlık ve Müşavirlik Hizmetleri kapsamında çalışan bir grup mühendis tarafından kurulmuştur.” Source: RevenueBase Database · checked Sep 19, 2026
18	DNA Çevre VE Arıtma Teknolojileri	Indirect evidence	Samsun, TürkiyeHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “Çevre, Atık Yönetimi, Atık Su Arıtma Tesisi İşletme ve Yapım Hizmetlerini gerçekleştirme gayesiyle 2011 yılında kurulmuştur.” Source: RevenueBase Database · checked Sep 19, 2026
19	Innovatek	Indirect evidence	Kocaeli, TürkiyeHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “Main focus is to supply cutting-edge products used in various treatment plants and special processes across different industrial facilities and power plants.” Source: RevenueBase Database · checked Sep 19, 2026
20	Bar-Su Engineering & Concultancy INC	Partial evidence	Ankara, TürkiyeHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “We design and manage storage, irrigation and enery systems, water distribution enterprises and related facilities.” Source: RevenueBase Database · checked Sep 19, 2026
21	Opsi̇s-Mrz Çevre Teknoloji̇leri̇	Indirect evidence	Döşemealtı, TürkiyeHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “Transforming Sustainability: The Journey of OPSIS GROUP in Environmental Technologies Established in 2005 in Antalya, Turkey, OPSIS GROUP has risen to a leading position in the…” Source: RevenueBase Database · checked Sep 19, 2026
22	Boğaziçi Arıtma VE Çevre Danışmanlık Hiz. San. Tic. Ltd. ŞTI	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “Boğaziçi Arıtma Ve Çevre Danışmanlık Hizmetleri San.” Source: RevenueBase Database · checked Sep 19, 2026
23	Aykome Mühendislik Müşavirlik Mak. San. Ltd. ŞTI	Indirect evidence	Ankara, TürkiyeHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “AYKOME, tescilli sloganı olan Altyapı Koordinasyon Merkezi kısaltması olarak markalaşmıştır.” Source: RevenueBase Database · checked Sep 19, 2026
24	Protech Water Technologies	Partial evidence	İzmi̇r, TürkiyeHQ checked Sep 19, 2026	11-50	8 contacts →
	Partial evidence “Protech Water Technologies was established in 2015 with the aim of provoding global service for water and wastewater treatment chemicals.” Source: RevenueBase Database · checked Sep 19, 2026
25	ENORA	Indirect evidence	Ankara, TürkiyeHQ checked Sep 19, 2026	51-200	8 contacts →
	Indirect evidence “Enora is one of the leading company working mainly in all fields of environmental technologies, especially water filtration systems in industrial, municipal and oil & gas industry…” Source: RevenueBase Database · checked Sep 19, 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: wastewater engineering and design 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 wastewater engineering and design firms.
Partial evidence: Its own public description names part of wastewater engineering and design firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name wastewater engineering and design 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 271 wastewater engineering and design firms based in Türkiye

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 253 reachable decision-makers.

Free signup · no credit card

View the full list →

Wastewater engineering and design firms based in Türkiye at a glance

As of Sep 19, 2026

9.2%Verified-email coverage

10.1Average contacts per company

11-50Median size (employees)

21.8%Largest-city concentration · Istanbul

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

113

11-50

120

51-200

201-500

501-1,000

5,001-10,000

Email recency for this list is measured worldwide rather than for Türkiye, so it is reported there. Company counts and contact totals on this page are exact for Türkiye, over 271 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 wastewater engineering and design 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 Türkiye whose own description of what they do matches “wastewater engineering and design 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 wastewater engineering and design 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 wastewater engineering and design firms, and records with no verified work email. Companies headquartered outside Türkiye 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, 253 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.

Wastewater engineering and design firms by metro

Wastewater engineering and design firms in Istanbul59
Wastewater engineering and design firms in Ankara33

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 wastewater engineering and design 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 wastewater engineering and design firms are there based in Türkiye?

RevenueBase identified 271 wastewater engineering and design firms headquartered in Türkiye 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?

Esli Pollet Water Group, headquartered in Antalya, tops this list with the largest team on record.

Which city has the most wastewater engineering and design firms?

Istanbul leads with 59 headquartered companies, followed by Ankara (33) and Izmir (14).

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 253 verified decision-maker contacts tracked across these 271 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.

Ready to reach these companies? Verified emails and direct dials for all 271 wastewater engineering and design firms based in Türkiye. Start with a free account, no credit card.

Download this list →

Related lists

Wastewater engineering and design firms by geography

Browse the directory

Browse: Companies home · All Türkiye lists · All Wastewater engineering and design firms lists · New lists

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.