Company lists · Data refreshed September 2026

Top 25 Building water systems companies based in Italy

Name: Building water systems companies based in Italy
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 794 companies tracked

RevenueBase identified 794 building water systems companies headquartered in Italy as of September 2026 and tracks 4,918 professional contacts across them, including 1,140 with verified work emails. Roma is the largest hub.

This list covers building water systems companies 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 16, 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 16, 2026 86% judged on-target in blind review

794Companies

4,918Contacts tracked

1,140Verified emails

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The 25 largest building water systems companies based in Italy

Ranked by team size

Top 25 of 794 building water systems companies based in Italy, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to building water systems companies: 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	Culligan Italiana S.P.A	Indirect evidence	Bologna, ItalyHQ checked Sep 16, 2026	201-500	489 contacts →
	Indirect evidence “Culligan Italiana è in grado di offrire la soluzione ideale per ogni tipologia di trattamento acqua: piccoli impianti ad uso domestico, erogatori d'acqua per uffici e ristoranti…” Source: RevenueBase Database · checked Sep 16, 2026
2	Fisia Italimpianti	Partial evidence	Genova, ItalyHQ checked Sep 16, 2026	51-200	362 contacts →
	Partial evidence “Fisia Italimpianti S.p.A, part of Webuild Group (the new group born in 2020 from Salini Impregilo), is a worldwide leader in the sustainable design and execution of water…” Source: RevenueBase Database · checked Sep 16, 2026
3	Calpeda	Partial evidence	Montorso Vicentino, ItalyHQ checked Sep 16, 2026	201-500	134 contacts →
	Partial evidence “Since 1959, Calpeda has been a leader in the design and manufacture of efficient, sustainable water pumping solutions, proudly made in Italy.” Source: RevenueBase Database · checked Sep 16, 2026
4	BLU Service	Indirect evidence	Milano, ItalyHQ checked Sep 16, 2026	51-200	115 contacts →
	Indirect evidence “SIAMO GLI SPECIALISTI DELL'ACQUA!” Source: RevenueBase Database · checked Sep 16, 2026
5	RDR S.P.A. Società Benefit	Indirect evidence	Torre Del Greco, ItalyHQ checked Sep 16, 2026	201-500	109 contacts →
	Indirect evidence “RDR S.p.A.” Source: RevenueBase Database · checked Sep 16, 2026
6	S.T.A. Società Trattamento Acque SPA	Indirect evidence	Mantova, ItalyHQ checked Sep 16, 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 16, 2026
7	Elbi S.P.A	Indirect evidence	Limena, ItalyHQ checked Sep 16, 2026	201-500	80 contacts →
	Indirect evidence “ELBI opera dal 1965 nel campo della termoidraulica, costruendo una solida reputazione ed immagine di se stessa nei maggiori mercati mondiali.” Source: RevenueBase Database · checked Sep 16, 2026
8	Sodai S.P.A	Indirect evidence	Milano, ItalyHQ checked Sep 16, 2026	51-200	74 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
9	Atlas Filtri	Strong evidence	Limena, ItalyHQ checked Sep 16, 2026	51-200	71 contacts →
	Strong evidence “Atlas Filtri is a dynamic Italian company: designing, developing, and producing components for filtration systems and equipment for water treatment applicable to domestic and…” Source: RevenueBase Database · checked Sep 16, 2026
10	Icri S.R.L	Indirect evidence	Milano, ItalyHQ checked Sep 16, 2026	51-200	57 contacts →
	Indirect evidence “La società ICRI srl è un'azienda di pluriennale esperienza, operante nel settore degli impianti di climatizzazione e trattamento aria, idrico-sanitari, speciali, elettrici ed…” Source: RevenueBase Database · checked Sep 16, 2026
11	Bernardinello Engineering SPA	Indirect evidence	Cadoneghe, ItalyHQ checked Sep 16, 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 16, 2026
12	Waterline SRL	Strong evidence	Rubiera, ItalyHQ checked Sep 16, 2026	51-200	46 contacts →
	Strong evidence “Waterline is an Italian B2B company specialized in the production and distribution of professional components and systems for: • domestic and industrial water treatment •…” Source: RevenueBase Database · checked Sep 16, 2026
13	GDN SRL	Partial evidence	ItalyHQ checked Sep 16, 2026	11-50	39 contacts →
	Partial evidence “WHAT WE DO GDN srl Water Treatment is specialized in manufacturing, selling and supplying turnkey equipments for water treatment, starting from the pretreatment of raw water from…” Source: RevenueBase Database · checked Sep 16, 2026
14	Orange SRL	Indirect evidence	Florence, ItalyHQ checked Sep 16, 2026	11-50	33 contacts →
	Indirect evidence “ORANGE, fondata nel 2007 con sede a Firenze, è un importante operatore nel settore italiano del trattamento delle acque industriali.” Source: RevenueBase Database · checked Sep 16, 2026
15	Euroacque S.R.L	Strong evidence	Niviano Di Rivergaro, ItalyHQ checked Sep 16, 2026	51-200	30 contacts →
	Strong evidence “Euroacque is an Italian company that manufactures primary water treatment components and provides maintenance services for thermal and heating systems, both in residential and…” Source: RevenueBase Database · checked Sep 16, 2026
16	BAMPI	Indirect evidence	Lonato Del Garda (bs), ItalyHQ checked Sep 16, 2026	11-50	30 contacts →
	Indirect evidence “Bampi distribuisce soluzioni & sistemi idrotermosanitari.” Source: RevenueBase Database · checked Sep 16, 2026
17	Simpec	Indirect evidence	Nova Milanese, ItalyHQ checked Sep 16, 2026	51-200	29 contacts →
	Indirect evidence “Simpec is division of STA SpA from 2025/01/01.” Source: RevenueBase Database · checked Sep 16, 2026
18	Socotis SPA	Indirect evidence	Segrate, ItalyHQ checked Sep 16, 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 16, 2026
19	Protecno SRL	Indirect evidence	Mondolfo, ItalyHQ checked Sep 16, 2026	51-200	27 contacts →
	Indirect evidence “Professional-Technology: these simple words sum up our management strategy.” Source: RevenueBase Database · checked Sep 16, 2026
20	Termoacqua Tecnologie S.R.L	Indirect evidence	Fizzonasco Di Pieve Emanuele, ItalyHQ checked Sep 16, 2026	11-50	25 contacts →
	Indirect evidence “Quasi 40 anni di esperienza nel settore del trattamento delle acque primarie e di processo hanno reso Termoacqua Tecnologie il Partner di numerose ed importanti realtà.” Source: RevenueBase Database · checked Sep 16, 2026
21	Waternext Group	Indirect evidence	Milano, ItalyHQ checked Sep 16, 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 16, 2026
22	Tepor SPA	Indirect evidence	Cagliari, ItalyHQ checked Sep 16, 2026	11-50	24 contacts →
	Indirect evidence “Tepor SpA is a company based out of Italy.” Source: RevenueBase Database · checked Sep 16, 2026
23	Everblue	Strong evidence	Loc. Gotra Di Albareto (pr), ItalyHQ checked Sep 16, 2026	11-50	23 contacts →
	Strong evidence “Born as the result of many years of experience in the water treatment field and specifically with filtration system technologies, Everblue is one of the most professional and…” Source: RevenueBase Database · checked Sep 16, 2026
24	IWM Depuratori D'acqua	Indirect evidence	Cinisello Balsamo, ItalyHQ checked Sep 16, 2026	11-50	21 contacts →
	Indirect evidence “Siamo in Italia una tra le più importanti e storiche aziende nel settore del trattamento delle acque potabili.” Source: RevenueBase Database · checked Sep 16, 2026
25	Idro Group SRL	Indirect evidence	Seregno, ItalyHQ checked Sep 16, 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 16, 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: building water systems companies. 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 building water systems companies.
Partial evidence: Its own public description names part of building water systems companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name building water systems companies. 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 794 building water systems companies based in Italy

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Building water systems companies based in Italy at a glance

As of Sep 16, 2026

23.2%Verified-email coverage

6.2Average contacts per company

11-50Median size (employees)

2.8%Largest-city concentration · Roma

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

280

11-50

436

51-200

201-500

5,001-10,000

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 794 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 building water systems companies, 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 “building water systems companies”. 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 building water systems companies), 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 building water systems companies, 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, 1,140 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 16, 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 building water systems companies, 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 building water systems companies are there based in Italy?

RevenueBase identified 794 building water systems companies 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?

Culligan Italiana S.P.A, headquartered in Bologna, tops this list with the largest team on record.

Which city has the most building water systems companies?

Roma leads with 22 headquartered companies, followed by Milano Mi (20) and Torino (10).

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 1,140 verified decision-maker contacts tracked across these 794 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 16, 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.