Company lists · Data refreshed September 2026

Top 25 Petroleum refinery wastewater treatment builders based in Italy

Name: Petroleum refinery wastewater treatment builders based in Italy
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 124 companies tracked

RevenueBase identified 124 petroleum refinery wastewater treatment builders headquartered in Italy as of September 2026 and tracks 1,164 professional contacts across them, including 327 with verified work emails. Parma is the largest hub.

This list covers petroleum refinery wastewater treatment builders 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 20, 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 20, 2026 86% judged on-target in blind review

124Companies

1,164Contacts tracked

327Verified emails

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The 25 largest petroleum refinery wastewater treatment builders based in Italy

Ranked by team size

Top 25 of 124 petroleum refinery wastewater treatment builders based in Italy, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to petroleum refinery wastewater treatment builders: 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	S.T.A. Società Trattamento Acque SPA	Indirect evidence	Mantova, ItalyHQ checked Sep 20, 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 20, 2026
2	Hysytech S.R.L	Indirect evidence	Orbassano, ItalyHQ checked Sep 20, 2026	51-200	64 contacts →
	Indirect evidence “Hysytech is an engineering and process equipment construction company established on 2003, in Turin, Italy.” Source: RevenueBase Database · checked Sep 20, 2026
3	Bernardinello Engineering SPA	Indirect evidence	Cadoneghe, ItalyHQ checked Sep 20, 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 20, 2026
4	Co.Par.M. SRL	Indirect evidence	Ferrandina, ItalyHQ checked Sep 20, 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 20, 2026
5	Simpec	Indirect evidence	Nova Milanese, ItalyHQ checked Sep 20, 2026	51-200	29 contacts →
	Indirect evidence “Simpec is division of STA SpA from 2025/01/01.” Source: RevenueBase Database · checked Sep 20, 2026
6	Torricelli	Indirect evidence	Forlì, ItalyHQ checked Sep 20, 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 20, 2026
7	Protecno SRL	Indirect evidence	Mondolfo, ItalyHQ checked Sep 20, 2026	51-200	27 contacts →
	Indirect evidence “Professional-Technology: these simple words sum up our management strategy.” Source: RevenueBase Database · checked Sep 20, 2026
8	Waternext Group	Indirect evidence	Milano, ItalyHQ checked Sep 20, 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 20, 2026
9	Idro Group SRL	Indirect evidence	Seregno, ItalyHQ checked Sep 20, 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 20, 2026
10	3v Green Eagle	Indirect evidence	Bergamo, ItalyHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “3V Green Eagle is a leading environmental services company for many industrial sectors, from the chemical and pharmaceutical industries to O&G, which can rely on us as a…” Source: RevenueBase Database · checked Sep 20, 2026
11	Dorabaltea Depurazione Acque Reflue	Indirect evidence	Arezzo, ItalyHQ checked Sep 20, 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 20, 2026
12	X2 Solutions SRL	Partial evidence	Mirandola, ItalyHQ checked Sep 20, 2026	11-50	20 contacts →
	Partial 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 20, 2026
13	O.M.C. Collareda S.R.L	Indirect evidence	Schio, ItalyHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect evidence “O.M.C.” Source: RevenueBase Database · checked Sep 20, 2026
14	Tecnoimpianti AIR & Water Treatment	Indirect evidence	Pozzuolo Martesana, ItalyHQ checked Sep 20, 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 20, 2026
15	Sireg Hydros	Strong evidence	(mb), ItalyHQ checked Sep 20, 2026	1-10	15 contacts →
	Strong 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 20, 2026
16	Panta REI Water Solutions	Partial evidence	Fiesso D’artico, ItalyHQ checked Sep 20, 2026	11-50	14 contacts →
	Partial 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 20, 2026
17	Idroconsulting S.P.A	Partial evidence	Gessate, ItalyHQ checked Sep 20, 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 20, 2026
18	CID SRL	Indirect evidence	Colloredo Di Monte Albano, ItalyHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “Cid progetta, costruisce e gestisce impianti per la depurazione di acque reflue.” Source: RevenueBase Database · checked Sep 20, 2026
19	Agquadro Engineering	Indirect evidence	Cosenza, ItalyHQ checked Sep 20, 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 20, 2026
20	PIECO	Indirect evidence	Terno D'isola, ItalyHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “Progettazione, realizzazione e gestione di impianti di trattamento destinati al settore industriale (Chimico, Petrolchimico, Galvanico, Meccanico, Tessile, Farmaceutico…” Source: RevenueBase Database · checked Sep 20, 2026
21	DAL Prete	Indirect evidence	Rivoli Veronese, ItalyHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “Dal Prete is a family from Valpolicella, in Italy, specialized in machinery for the processing of stone since 1964.” Source: RevenueBase Database · checked Sep 20, 2026
22	So.T.Eco. SPA	Indirect evidence	Santa Maria Capua Vetere, ItalyHQ checked Sep 20, 2026	51-200	8 contacts →
	Indirect evidence “Presente sul mercato italiano da oltre 40 anni, la SO.T.ECO.” Source: RevenueBase Database · checked Sep 20, 2026
23	Italplant S.R.L	Indirect evidence	Chiari, ItalyHQ checked Sep 20, 2026	11-50	8 contacts →
	Indirect evidence “Since its founding in 1988, ITALPLANT S.r.l.” Source: RevenueBase Database · checked Sep 20, 2026
24	Twincad SRL	Indirect evidence	Costa Di Rovigo, ItalyHQ checked Sep 20, 2026	11-50	8 contacts →
	Indirect evidence “Twincad S.r.l.” Source: RevenueBase Database · checked Sep 20, 2026
25	Visa Impianti SRL	Indirect evidence	Triuggio, ItalyHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “Siamo specializzati da oltre 40 anni nella progettazione costruzione ed installazione di impianti per i trattamenti delle superfici.” Source: RevenueBase Database · checked Sep 20, 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: petroleum refinery wastewater treatment builders. 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 petroleum refinery wastewater treatment builders.
Partial evidence: Its own public description names part of petroleum refinery wastewater treatment builders, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name petroleum refinery wastewater treatment builders. 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 124 petroleum refinery wastewater treatment builders based in Italy

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Petroleum refinery wastewater treatment builders based in Italy at a glance

As of Sep 20, 2026

28.1%Verified-email coverage

9.4Average contacts per company

11-50Median size (employees)

4.0%Largest-city concentration · Parma

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 124 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 petroleum refinery wastewater treatment builders, 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 “petroleum refinery wastewater treatment builders”. 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 petroleum refinery wastewater treatment builders), 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 petroleum refinery wastewater treatment builders, 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, 327 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 20, 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 petroleum refinery wastewater treatment builders, 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 petroleum refinery wastewater treatment builders are there based in Italy?

RevenueBase identified 124 petroleum refinery wastewater treatment builders 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?

S.T.A. Società Trattamento Acque SPA, headquartered in Mantova, tops this list with the largest team on record.

Which city has the most petroleum refinery wastewater treatment builders?

Parma leads with 5 headquartered companies, followed by Milano Mi (4) and Roma (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 327 verified decision-maker contacts tracked across these 124 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 20, 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.