Company lists · Data refreshed September 2026

Top 25 Activated sludge system installers based in Italy

Name: Activated sludge system installers based in Italy
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 205 companies tracked

RevenueBase identified 205 activated sludge system installers headquartered in Italy as of September 2026 and tracks 2,031 professional contacts across them, including 548 with verified work emails. Roma is the largest hub.

This list covers activated sludge system installers headquartered in Italy, 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

205Companies

2,031Contacts tracked

548Verified emails

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The 25 largest activated sludge system installers based in Italy

Ranked by team size

Top 25 of 205 activated sludge system installers based in Italy, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to activated sludge system installers: 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	RDR S.P.A. Società Benefit	Indirect evidence	Torre Del Greco, ItalyHQ checked Sep 19, 2026	201-500	109 contacts →
	Indirect evidence “RDR S.p.A.” Source: RevenueBase Database · checked Sep 19, 2026
2	S.T.A. Società Trattamento Acque SPA	Indirect evidence	Mantova, ItalyHQ checked Sep 19, 2026	51-200	91 contacts →
	Indirect evidence “STA aiuta le Società di Gestione del Servizio Idrico e le Piccole, Medie e Grandi Industrie a progettare, costruire e gestire impianti di trattamento delle acque reflue, primarie…” Source: RevenueBase Database · checked Sep 19, 2026
3	Sodai S.P.A	Indirect evidence	Milano, ItalyHQ checked Sep 19, 2026	51-200	74 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
4	Tm.E. S.P.A.	Indirect evidence	La Spezia, ItalyHQ checked Sep 19, 2026	201-500	60 contacts →
	Indirect evidence “Design, project management, supply, construction, commissioning and service of complete facilities, or their parts, for waste treatment with energy production, for water treatment…” Source: RevenueBase Database · checked Sep 19, 2026
5	Bernardinello Engineering SPA	Indirect evidence	Cadoneghe, ItalyHQ checked Sep 19, 2026	51-200	53 contacts →
	Indirect evidence “Nata nel 1995 alle porte di Padova, Bernadinello Engineering si è ritagliata una posizione di assoluta eccellenza nel trattamento delle acque e nell’ingegneria di processo in…” Source: RevenueBase Database · checked Sep 19, 2026
6	Co.Par.M. SRL	Indirect evidence	Ferrandina, ItalyHQ checked Sep 19, 2026	51-200	35 contacts →
	Indirect evidence “Waste recovery machinery and facilities Founded by the Aliuzzi family in 1977, Co.par.m.” Source: RevenueBase Database · checked Sep 19, 2026
7	MVT	Indirect evidence	Maserada Sul Piave, ItalyHQ checked Sep 19, 2026	51-200	29 contacts →
	Indirect evidence “Con più di 57 anni di esperienza, MVT - MION VENTOLTERMICA progetta, costruisce e installa impianti AUTOMATIZZATI di trattamento rifiuti per la produzione di COMPOST e C.D.R…” Source: RevenueBase Database · checked Sep 19, 2026
8	Simpec	Indirect evidence	Nova Milanese, ItalyHQ checked Sep 19, 2026	51-200	29 contacts →
	Indirect evidence “Simpec is division of STA SpA from 2025/01/01.” Source: RevenueBase Database · checked Sep 19, 2026
9	Socotis SPA	Indirect evidence	Segrate, ItalyHQ checked Sep 19, 2026	51-200	28 contacts →
	Indirect evidence “Dalla leggendaria epoca della ricostruzione post guerra, alle moderne sfide delle tecnologie eco-sostenibili: Socotis è un gruppo con la passione per il "costruire" nel DNA.” Source: RevenueBase Database · checked Sep 19, 2026
10	PPT Tecnologie Ambientali	Indirect evidence	San Giovanni Lupatoto, ItalyHQ checked Sep 19, 2026	11-50	28 contacts →
	Indirect evidence “PPT Tecnologie Ambientali opera in campo ambientale dal 1982 e cura la realizzazione di impianti di trattamento in tutte le sue fasi: dalla studio preliminare alla progettazione e…” Source: RevenueBase Database · checked Sep 19, 2026
11	Torricelli	Indirect evidence	Forlì, ItalyHQ checked Sep 19, 2026	11-50	27 contacts →
	Indirect evidence “Torricelli s.r.l, impianti per l’ecologia, opera su tutto il territorio nazionale ed estero per la progettazione, realizzazione e gestione di impianti in campo ambientale…” Source: RevenueBase Database · checked Sep 19, 2026
12	Protecno SRL	Indirect evidence	Mondolfo, ItalyHQ checked Sep 19, 2026	51-200	27 contacts →
	Indirect evidence “Professional-Technology: these simple words sum up our management strategy.” Source: RevenueBase Database · checked Sep 19, 2026
13	Waternext Group	Indirect evidence	Milano, ItalyHQ checked Sep 19, 2026	11-50	25 contacts →
	Indirect evidence “WaterNext Group is a trailblazing enterprise specializing in engineering, construction, and efficient plant management.” Source: RevenueBase Database · checked Sep 19, 2026
14	Idro Group SRL	Indirect evidence	Seregno, ItalyHQ checked Sep 19, 2026	11-50	20 contacts →
	Indirect evidence “Idro è una società presente sul mercato da più di 40anni, altamente specializzata nel settore ambientale: progetta e realizza impianti per il trattamento delle acque reflue civili…” Source: RevenueBase Database · checked Sep 19, 2026
15	Dorabaltea Depurazione Acque Reflue	Indirect evidence	Arezzo, ItalyHQ checked Sep 19, 2026	11-50	20 contacts →
	Indirect evidence “Dorabaltea® depurazione acque è oggi riconosciuta a livello internazionale come azienda di riferimento nel settore del trattamento delle acque reflue domestiche, assimilate ed…” Source: RevenueBase Database · checked Sep 19, 2026
16	X2 Solutions SRL	Indirect evidence	Mirandola, ItalyHQ checked Sep 19, 2026	11-50	20 contacts →
	Indirect evidence “X2 Solutions was born in 2011 from people coming from the waste water treatment market, with the idea to propose a complete products catalog, in order to better meet the costumers…” Source: RevenueBase Database · checked Sep 19, 2026
17	O.M.C. Collareda S.R.L	Indirect evidence	Schio, ItalyHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “O.M.C.” Source: RevenueBase Database · checked Sep 19, 2026
18	Tecnoimpianti AIR & Water Treatment	Indirect evidence	Pozzuolo Martesana, ItalyHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “Progettazione, realizzazione e fornitura di impianti di tipo industriale per il trattamento delle acque attraverso rimozione selettiva dei contaminanti, e di impianti per il…” Source: RevenueBase Database · checked Sep 19, 2026
19	FICIT	Partial evidence	Cornedo Vicentino, ItalyHQ checked Sep 19, 2026	11-50	15 contacts →
	Partial evidence “We are an engineering company specialising in the design and installation of industrial systems for water treatment and thermal energy generation.” Source: RevenueBase Database · checked Sep 19, 2026
20	Sireg Hydros	Indirect evidence	(mb), ItalyHQ checked Sep 19, 2026	1-10	15 contacts →
	Indirect evidence “Sireg Hydros, part of the Sireg Group, has over 35 years of experience in the design and manufacture of advanced water treatment plants for primary, process, and wastewater…” Source: RevenueBase Database · checked Sep 19, 2026
21	Panta REI Water Solutions	Indirect evidence	Fiesso D’artico, ItalyHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “Panta Rei Water Solutions is a private company involved in the sector of the design and construction of water and waste water treatment plants.Thanks to a significant experience…” Source: RevenueBase Database · checked Sep 19, 2026
22	Idroconsulting S.P.A	Partial evidence	Gessate, ItalyHQ checked Sep 19, 2026	11-50	14 contacts →
	Partial evidence “Idroconsulting’s business is the supply of specialist process engineering and equipment for water treatment systems and is addressed at both Engineering Companies and End Users.” Source: RevenueBase Database · checked Sep 19, 2026
23	CID SRL	Indirect evidence	Colloredo Di Monte Albano, ItalyHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “Cid progetta, costruisce e gestisce impianti per la depurazione di acque reflue.” Source: RevenueBase Database · checked Sep 19, 2026
24	Giotto Water S.R.L	Indirect evidence	Voghera, ItalyHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “Giotto Water opera in tutto il mondo da oltre 40 anni nel campo della depurazione, con ampio portfolio prodotti, tecnologie specifiche e soluzioni per il trattamento delle acque…” Source: RevenueBase Database · checked Sep 19, 2026
25	Agquadro Engineering	Indirect evidence	Cosenza, ItalyHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “La società AGquadro nasce nel 2013 e fin dalle prime battute di vita cerca di distinguersi nell’universo delle società di consulenza per la ricerca della specializzazione.” 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: activated sludge system installers. 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 activated sludge system installers.
Partial evidence: Its own public description names part of activated sludge system installers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name activated sludge system installers. 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 205 activated sludge system installers based in Italy

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Activated sludge system installers based in Italy at a glance

As of Sep 19, 2026

27.0%Verified-email coverage

9.9Average contacts per company

11-50Median size (employees)

2.9%Largest-city concentration · Roma

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for Italy, so it is reported there. Company counts and contact totals on this page are exact for Italy, over 205 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 activated sludge system installers, 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 Italy whose own description of what they do matches “activated sludge system installers”. 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 activated sludge system installers), 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 activated sludge system installers, and records with no verified work email. Companies headquartered outside Italy 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, 548 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 activated sludge system installers, 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 activated sludge system installers are there based in Italy?

RevenueBase identified 205 activated sludge system installers headquartered in Italy 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?

RDR S.P.A. Società Benefit, headquartered in Torre Del Greco, tops this list with the largest team on record.

Which city has the most activated sludge system installers?

Roma leads with 6 headquartered companies, followed by Parma (5) and La Spezia (4).

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 548 verified decision-maker contacts tracked across these 205 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.