Company lists · Data refreshed September 2026

Top 25 Relief valve manufacturers based in Italy

Name: Relief valve manufacturers based in Italy
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 82 companies tracked

RevenueBase identified 82 relief valve manufacturers headquartered in Italy as of September 2026 and tracks 2,061 professional contacts across them, including 666 with verified work emails. Milan is the largest hub.

This list covers relief valve manufacturers 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 30, 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 30, 2026 86% judged on-target in blind review

82Companies

2,061Contacts tracked

666Verified emails

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The 25 largest relief valve manufacturers based in Italy

Ranked by team size

Top 25 of 82 relief valve manufacturers based in Italy, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to relief valve manufacturers: 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	Valvitalia Group	Partial evidence	Rivanazzano Terme, ItalyHQ checked Sep 30, 2026	501-1,000	455 contacts →
	Partial evidence “We are an Italian multinational group specialized in the design, production and global supply of valves, gas and fire-fighting systems, fittings, for the energy, marine and civil…” Source: RevenueBase Database · checked Sep 30, 2026
2	Petrolvalves	Strong evidence	Castellanza, ItalyHQ checked Sep 30, 2026	501-1,000	314 contacts →
	Strong evidence “PetrolValves is a leading manufacturer of valves and actuators for the oil and gas industry.” Source: RevenueBase Database · checked Sep 30, 2026
3	IMI Remosa	Indirect evidence	Cagliari, ItalyHQ checked Sep 30, 2026	201-500	146 contacts →
	Indirect evidence “IMI are a global specialist engineering company that creates breakthrough solutions.” Source: RevenueBase Database · checked Sep 30, 2026
4	Velan ABV	Strong evidence	Porcari, ItalyHQ checked Sep 30, 2026	51-200	64 contacts →
	Strong evidence “Velan is one of the world's leading manufacturers of industrial steel valves, recognized as a standard-bearer in quality and innovation.” Source: RevenueBase Database · checked Sep 30, 2026
5	Dafram SPA	Strong evidence	Urbisaglia, ItalyHQ checked Sep 30, 2026	51-200	42 contacts →
	Strong evidence “DAFRAM S.p.A, founded in 1956, was the first company to manufacture floating ball valves in Italy.” Source: RevenueBase Database · checked Sep 30, 2026
6	Carraro Valvole	Partial evidence	Segrate, ItalyHQ checked Sep 30, 2026	51-200	39 contacts →
	Partial evidence “Experience, Technology and Flexibility Three key elements that make CARRARO an effective and reliable partner in the field of control and regulation of fluids for industrial…” Source: RevenueBase Database · checked Sep 30, 2026
7	AST S.P.A	Strong evidence	Cornaredo, ItalyHQ checked Sep 30, 2026	51-200	39 contacts →
	Strong evidence “Founded in 1951, AST SpA is one of the first Italian manufacturer of spring loaded safety relief valves, pilot operated relief valve and change-over valves.” Source: RevenueBase Database · checked Sep 30, 2026
8	IVR SPA	Indirect evidence	Boca, ItalyHQ checked Sep 30, 2026	51-200	36 contacts →
	Indirect evidence “Quality, service, and innovation: these are the values of IVR.” Source: RevenueBase Database · checked Sep 30, 2026
9	Enolgas Bonomi SPA	Indirect evidence	Concesio, ItalyHQ checked Sep 30, 2026	51-200	24 contacts →
	Indirect evidence “Enolgas da più di 50 anni è sinonimo di affidabilità, qualità e sicurezza.” Source: RevenueBase Database · checked Sep 30, 2026
10	TAI Milano SPA	Indirect evidence	Milan, ItalyHQ checked Sep 30, 2026	51-200	18 contacts →
	Indirect evidence “Our Company was founded in 1959.” Source: RevenueBase Database · checked Sep 30, 2026
11	CSA SRL	Partial evidence	Salsomaggiore Terme, ItalyHQ checked Sep 30, 2026	11-50	17 contacts →
	Partial evidence “CSA is a privately owned manufacturing company, established in 1987, whose core business is the production of valves and customized solutions for the pressure control, regulation…” Source: RevenueBase Database · checked Sep 30, 2026
12	Sirca International S.P.A	Indirect evidence	Trezzano Rosa, ItalyHQ checked Sep 30, 2026	51-200	16 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
13	Mival SRL	Strong evidence	Serravalle Sesia, ItalyHQ checked Sep 30, 2026	11-50	16 contacts →
	Strong evidence “Based in Valsesia (Piedmont - Italy), we operate with highly automated production systems and rigorous quality controls, delivering reliable and high-performance valves compliant…” Source: RevenueBase Database · checked Sep 30, 2026
14	Bianchi F.Lli Water & GAS Valves	Partial evidence	Lumezzane, ItalyHQ checked Sep 30, 2026	51-200	15 contacts →
	Partial evidence “Established in the 60's, Bianchi F.lli company has continuously developed and improved in the field of heating and valves technology, being able to widen the product range…” Source: RevenueBase Database · checked Sep 30, 2026
15	Refrigera Industriale S.R.L	Strong evidence	Pordenone, ItalyHQ checked Sep 30, 2026	11-50	15 contacts →
	Strong evidence “Refrigera Industriale designs, manufactures and markets a full range of valves for industrial and commercial refrigeration, custom designed for the specific needs of each client…” Source: RevenueBase Database · checked Sep 30, 2026
16	Bridgeport SPA	Indirect evidence	Bolgare, ItalyHQ checked Sep 30, 2026	51-200	14 contacts →
	Indirect evidence “Bridgeport Spa, con oltre 70 di esperienza nel settore, progetta e realizza valvole per pneumatici, valvole per impianti e sistemi di climatizzazione automotive, sensori…” Source: RevenueBase Database · checked Sep 30, 2026
17	Airaga Rubinetterie S.P.A	Partial evidence	Gozzano, ItalyHQ checked Sep 30, 2026	51-200	13 contacts →
	Partial evidence “Born in 1956, Airaga Rubinetterie spa today is an estimated and concrete reality both on national and international market in the field of domestic and industrial valves.” Source: RevenueBase Database · checked Sep 30, 2026
18	I.T.E. Srl- Industrial Technical Equipment	Indirect evidence	Fossò, ItalyHQ checked Sep 30, 2026	11-50	13 contacts →
	Indirect evidence “Established in 1998, across the years the company has been able to achieve several important results which have driven I.T.E.” Source: RevenueBase Database · checked Sep 30, 2026
19	Nencini SRL	Indirect evidence	Colle Di Val D’elsa, ItalyHQ checked Sep 30, 2026	11-50	10 contacts →
	Indirect evidence “Established in 1967, Nencini brings over 55 years of design and manufacturing experience to accomplish any job efficiently and effectively.” Source: RevenueBase Database · checked Sep 30, 2026
20	IMT Armaturen SRL	Indirect evidence	Borgosesia, ItalyHQ checked Sep 30, 2026	51-200	10 contacts →
	Indirect evidence “La IMT Armaturen AG nasce nel 1972 nella cittadina di AU, cantone San Gallo in Svizzera, come ditta distributrice di valvolame per riscaldamento, sanitario, gas e prodotti per…” Source: RevenueBase Database · checked Sep 30, 2026
21	Besa Ing. Santangelo S.P.A	Indirect evidence	Settala, ItalyHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence “BESA Ing.” Source: RevenueBase Database · checked Sep 30, 2026
22	Adler S.P.A Ball Valves	Partial evidence	Santo Stefano Ticino, ItalyHQ checked Sep 30, 2026	51-200	9 contacts →
	Partial evidence “Leader in Ball Valves Production and Selling.” Source: RevenueBase Database · checked Sep 30, 2026
23	Invalves SRL	Strong evidence	Gorla Minore, ItalyHQ checked Sep 30, 2026	11-50	7 contacts →
	Strong evidence “INVALVES S.r.l, establised in 2001, is a manufacturer of a wide range of valves to be used in the oil & gas industries, power generation units and critical services.” Source: RevenueBase Database · checked Sep 30, 2026
24	Galassi & Ortolani Valves	Partial evidence	Pioltello, ItalyHQ checked Sep 30, 2026	11-50	6 contacts →
	Partial evidence “Galassi & Ortolani has been making special valves since 1937.” Source: RevenueBase Database · checked Sep 30, 2026
25	Conflow SPA	Indirect evidence	Agrate Brianza, ItalyHQ checked Sep 30, 2026	11-50	6 contacts →
	Indirect evidence “Guarantee the "Quality" is a duty.” Source: RevenueBase Database · checked Sep 30, 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: relief valve manufacturers. 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 relief valve manufacturers.
Partial evidence: Its own public description names part of relief valve manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name relief valve manufacturers. 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 82 relief valve manufacturers based in Italy

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Relief valve manufacturers based in Italy at a glance

As of Sep 30, 2026

32.3%Verified-email coverage

25.1Average contacts per company

11-50Median size (employees)

6.1%Largest-city concentration · Milan

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 82 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 relief valve manufacturers, 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 “relief valve manufacturers”. 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 relief valve manufacturers), 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 relief valve manufacturers, 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, 666 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 30, 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 relief valve manufacturers, 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 relief valve manufacturers are there based in Italy?

RevenueBase identified 82 relief valve manufacturers 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?

Valvitalia Group, headquartered in Rivanazzano Terme, tops this list with the largest team on record.

Which city has the most relief valve manufacturers?

Milan leads with 5 headquartered companies, followed by Bonate Sopra (2) and Castellanza (2).

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 666 verified decision-maker contacts tracked across these 82 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 30, 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.