Company lists · Data refreshed September 2026
Top 25 Wastewater consulting firms based in Türkiye
RevenueBase identified 300 wastewater consulting firms headquartered in Türkiye as of September 2026 and tracks 2,156 professional contacts across them, including 238 with verified work emails. Istanbul is the largest hub.
This list covers wastewater consulting 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 29, 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.
The 25 largest wastewater consulting firms based in Türkiye
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 60 contacts → | ||||
Indirect evidence “AKA SU» şirketi 1998 yılında kuruldu.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 48 contacts → | ||||
Partial evidence “ENVESU is a consulting and project management company offering a wide range of services in the construction industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 31 contacts → | ||||
Indirect 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 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 28 contacts → | ||||
Partial 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 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 26 contacts → | ||||
Indirect evidence “Ulus Mühendislik Olarak, ÇEVRE DANIŞMANLIĞI' nda Uzman Mühendis Kadrolarımızla Hizmet Sunmaktayız.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 21 contacts → | ||||
Indirect evidence “2001 yılında kurucumuz Harun TEKAY Çevre Danışmanlık hizmetlerinde aktif çalışma hayatına başlamıştır.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 19 contacts → | ||||
Partial evidence “AQWADEM is a Consulting Company offering complete solutions in Project Management, Corporate Management, Financial Management and Engineering fields in Infrastructure…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 18 contacts → | ||||
Partial evidence “Wastewater Treatment Systems” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 17 contacts → | ||||
Indirect evidence “Durko Çevre Enerji Tekniği ve Tic.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 17 contacts → | ||||
Indirect evidence “EKE ENDUSTRI LTD is established in February 2004.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 17 contacts → | ||||
Indirect evidence “TR-AKAR-SU Mühendislik Müşavirlik Ltd.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 13 contacts → | ||||
Indirect evidence “Ökotek, 1990 yılında endüstri kuruluşlarının problemlerine çözümler sunmak amacıyla kuruldu.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11 contacts → | ||||
Indirect evidence “Temmuz 2015'te faaliyetine başlayan Dorlion Çevre, Türkiye genelinde uzman kadrosuyla çevre mühendisliği konusunda mühendislik hizmetleri vermektedir.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 10 contacts → | ||||
Indirect evidence “Uzman mühendislerimiz ile çevre sektöründe uygun, teknolojik, sürdürülebilir çözümler üretiyoruz.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 10 contacts → | ||||
Indirect evidence “Boğaziçi Arıtma Ve Çevre Danışmanlık Hizmetleri San.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 contacts → | ||||
Indirect evidence “AYKOME, tescilli sloganı olan Altyapı Koordinasyon Merkezi kısaltması olarak markalaşmıştır.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 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 29, 2026Thanks. The Data Team will review it. | |||||
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 consulting 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 consulting firms.
- Partial evidence
- Its own public description names part of wastewater consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name wastewater consulting 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 300 wastewater consulting firms based in Türkiye
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Wastewater consulting firms based in Türkiye at a glance
As of Sep 29, 2026Companies by employee count
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 300 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 consulting 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 consulting 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 consulting 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 consulting 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, 238 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 29, 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 consulting firms by metro
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 consulting 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 consulting firms are there based in Türkiye?
RevenueBase identified 300 wastewater consulting 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?
AKA SU Teknoloji̇leri̇, headquartered in Ankara, tops this list with the largest team on record.
Which city has the most wastewater consulting firms?
Istanbul leads with 60 headquartered companies, followed by Ankara (32) and Izmir (15).
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 238 verified decision-maker contacts tracked across these 300 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 29, 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.
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