Company lists · Data refreshed September 2026

Top 20 Water security consulting firms based in Italy

RevenueBase identified 49 water security consulting firms headquartered in Italy as of September 2026 and tracks 412 professional contacts across them, including 176 with verified work emails. Rome is the largest hub.

This list covers water security consulting firms 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 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
49Companies
412Contacts tracked
176Verified emails
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The 20 largest water security consulting firms based in Italy

Ranked by team size
Top 20 of 49 water security consulting firms based in Italy, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to water security consulting 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceTrieste, ItalyHQ checked Sep 29, 202651-20070 contacts →

Partial evidence

“Idrostudi is one of the European’s leading engineering professional services consulting firms.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceLecce, ItalyHQ checked Sep 29, 202611-5042 contacts →

Indirect evidence

“La nostra società di ingegneria mette a disposizione la sua esperienza ventennale sui Temi che coinvolgono l’Acqua, l’Ambiente e l’Energia, offrendo servizi di alta qualità e…”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceTurin, ItalyHQ checked Sep 29, 202611-5022 contacts →

Indirect evidence

“Hydrodata è un’organizzazione privata, indipendente, presente sul mercato da oltre 50 anni con un brand affermato.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceRome, ItalyHQ checked Sep 29, 202611-5016 contacts →

Indirect evidence

“Tecnostudi Ambiente (TSA) is an Italian consultancy company established in 1994 and formed by a core of experts in the field of Engineering, Environment and Earth Sciences that…”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidencePreganziol, ItalyHQ checked Sep 29, 202611-5013 contacts →

Partial evidence

“Hydro Nova is a global engineering, management and development firm, concentrating on helping the world harness water, better.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceVenice, ItalyHQ checked Sep 29, 20261-1012 contacts →

Indirect evidence

“GreenDecision (GD) is an innovative startup founded by a group of researchers from Ca’Foscari University of Venice.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidencePadua, ItalyHQ checked Sep 29, 202611-5011 contacts →

Indirect evidence

“Nata nel 2018, O2H engineering fornisce servizi di progettazione, direzione lavori e consulenze ad enti pubblici e aziende private nei diversi settori dell’ingegneria idraulica ed…”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceFlorence, ItalyHQ checked Sep 29, 202611-5011 contacts →

Indirect evidence

“IRIDRA is an engineering firm composed by an interdisciplinary group of experts (one biologist, one environmental chemist, one mechanical engineer and one environmental engineer).”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceVenice, ItalyHQ checked Sep 29, 202611-5010 contacts →

Partial evidence

“SWI Group | Over 25 Years of Expertise in Environment, Health & Safety Specialized in Turn-Key Water Management Solutions | EPC Contractor Since 2004, SWI Group has been driven by…”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceMilan, ItalyHQ checked Sep 29, 202651-2009 contacts →

Indirect evidence

“PRO ITER Group, private and independent, provides a talent pool of specialists, working, in synergy, in the controlled companies.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceSanta Giustina, ItalyHQ checked Sep 29, 202611-507 contacts →

Indirect evidence

“Zollet Ingegneria S.r.l.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceNaples, ItalyHQ checked Sep 29, 202611-506 contacts →

Indirect evidence

“La FINALCA INGEGNERIA S.r.l.”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceRome, ItalyHQ checked Sep 29, 20261-106 contacts →

Partial evidence

“IdroAM srl | Consulting to government agencies and private companies in the following fields of civil and environmental engineering - river hydraulic- hydraulic and geotechnical…”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceRome, ItalyHQ checked Sep 29, 202611-506 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceScafati, ItalyHQ checked Sep 29, 20261-104 contacts →

Indirect evidence

“The owners of the De.Wa.Co.”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceTerni, ItalyHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

“Offriamo servizi di progettazione ingegneristica e di consulenza professionale, dedicando particolare attenzione al raggiungimento degli obiettivi del cliente nei tempi prefissati.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceRome, ItalyHQ checked Sep 29, 202611-503 contacts →

Indirect evidence

“La VAMS Ingegneria è impegnata fin dal 1974 (anno di costituzione) nel settore della ingegneria delle grandi infrastrutture ed ha acquisito una qualificata esperienza…”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceClusone, ItalyHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

“Completare”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidencePadua, ItalyHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

“Simulaqua s.r.l.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceGorizia, ItalyHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026

Showing 20 of 49 water security consulting firms based in Italy

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Water security consulting firms based in Italy at a glance

As of Sep 29, 2026
42.7%Verified-email coverage
8.4Average contacts per company
11-50Median size (employees)
16.3%Largest-city concentration · Rome
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
22
51-200
4

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 49 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 water security 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 Italy whose own description of what they do matches “water security 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 water security 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 water security consulting firms, 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, 176 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.

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 water security 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 water security consulting firms are there based in Italy?

RevenueBase identified 49 water security consulting firms 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?

Idrostudi, headquartered in Trieste, tops this list with the largest team on record.

Which city has the most water security consulting firms?

Rome leads with 8 headquartered companies, followed by Padua (3) and Milan (3).

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 176 verified decision-maker contacts tracked across these 49 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.