Company lists · Data refreshed September 2026
Top 23 Hydrology consulting firms based in Italy
RevenueBase identified 78 hydrology consulting firms headquartered in Italy as of September 2026 and tracks 600 professional contacts across them, including 196 with verified work emails and 27 with mobile numbers. Roma is the largest hub.
This list covers hydrology 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 23 largest hydrology consulting firms based in Italy
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 69 | ||||
“Idrostudi is one of the European’s leading engineering professional services consulting firms.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 42 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 25 | ||||
“ART opera nei settori dell'ingegneria idraulica, della valutazione ambientale, della pianificazione territoriale e dei sistemi informativi territoriali.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 22 | ||||
“Hydrodata è un’organizzazione privata, indipendente, presente sul mercato da oltre 50 anni con un brand affermato.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 16 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 15 | ||||
“GEOMAP is an independent service company (Ltd), based in Florence, Italy.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 12 | ||||
Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | O2h Engineering S.R.L.SIndirect evidence | 11 | |||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 11 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 10 | ||||
“ACQUATECNO, società di ingegneria nata nel 1987, opera nel settore delle opere marittime e dell’ambiente.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 10 | ||||
“ATRE Ingegneria is an environmental and territorial engineering studio founded in 2007, specialized in environmental waterworks in the civil sector, planning and directing works…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | Zollet IngegneriaIndirect evidence | 7 | |||
“Zollet Ingegneria S.r.l.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | 7 | ||||
“La Ferretti Progettazioni S.r.l.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | 6 | ||||
“Etatec Studio Paoletti Srl is a company based out of Milan, Lombardy, Italy.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | 6 | ||||
“IdroAM srl | Consulting to government agencies and private companies in the following fields of civil and environmental engineering - river hydraulic- hydraulic and geotechnical…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | Studio Majone Ingegneri AssociatiIndirect evidence | 6 | |||
Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | Ydros Ingegneria Studio AssociatoIndirect evidence | 3 | |||
“Lo studio associato viene costituito nel 2003 dall'ing.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 | ||||
“Offriamo servizi di progettazione ingegneristica e di consulenza professionale, dedicando particolare attenzione al raggiungimento degli obiettivi del cliente nei tempi prefissati.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | Vams IngegneriaIndirect evidence | 3 | |||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | SC -Studio Castelletti S.R.LIndirect evidence | 3 | |||
“Completare” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | Studio CappellaIndirect evidence | 1 | |||
Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | SimulaquaIndirect evidence | 1 | |||
“Simulaqua s.r.l.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | Studio Taccolini Ingegneri AssociatiIndirect evidence | 1 | |||
“studio di ingegneria civile idraulica specializzata nella progettazione delle opere idrauliche, acquedotti, fognature, vasche di laminazione, sistemazione corsi d'acqua, opere di…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 23 of 78 hydrology consulting firms based in Italy
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Hydrology consulting firms based in Italy at a glance
As of Sep 3, 2026Companies by employee count
Verified emails by last verification
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 hydrology consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Italy whose own description of what they do matches “hydrology consulting firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among hydrology 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 an evidence 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, 196 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 3, 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
How many hydrology consulting firms are there based in Italy?
RevenueBase identified 78 hydrology 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 Milano, tops this list with the largest team on record.
Which city has the most hydrology consulting firms?
Roma leads with 5 headquartered companies, followed by Firenze (4) and Parma (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 196 verified decision-maker contacts tracked across these 78 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 3, 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 SmartSearch, 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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