Company lists · Data refreshed September 2026

Top 25 Sealing and gasket manufacturers based in Italy

RevenueBase identified 210 sealing and gasket manufacturers headquartered in Italy as of September 2026 and tracks 2,101 professional contacts across them, including 575 with verified work emails. Castelli Calepio is the largest hub.

This list covers sealing and gasket 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 17, 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 17, 2026 86% judged on-target in blind review
210Companies
2,101Contacts tracked
575Verified emails
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The 25 largest sealing and gasket manufacturers based in Italy

Ranked by team size
Top 25 of 210 sealing and gasket manufacturers based in Italy, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to sealing and gasket 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceModena, ItalyHQ checked Sep 17, 202651-20066 contacts →

Partial evidence

“For over 40 years, ATP has been committed to researching customised solutions for sealing and plastic processing systems that offer cutting-edge, totally customisable products.”

Source: RevenueBase Database · checked Sep 17, 2026
2Indirect evidenceMilano, ItalyHQ checked Sep 17, 202651-20061 contacts →

Indirect evidence

“L'origine della Klinger Italy Srl ha come data di partenza il lontano 1895, anno in cui nacque la Tenger & Zollinger società che rappresentò e distribuì per molti anni i prodotti…”

Source: RevenueBase Database · checked Sep 17, 2026
3Strong evidenceAdro, ItalyHQ checked Sep 17, 202651-20060 contacts →

Strong evidence

“We are a global manufacturer of high-performance sealing components, engineered for the oil & gas, petrochemical, and industrial valve sectors.”

Source: RevenueBase Database · checked Sep 17, 2026
4Indirect evidenceCredaro, ItalyHQ checked Sep 17, 202651-20052 contacts →

Indirect evidence

“Since 1979, Lopigom has been the technical-industrial partner for companies seeking reliable, certified rubber, plastic and two-component parts designed to last.”

Source: RevenueBase Database · checked Sep 17, 2026
5Strong evidenceVillongo, ItalyHQ checked Sep 17, 202651-20049 contacts →

Strong evidence

“At Novotema we manufacture fully customized elastomeric sealing solutions: we assist the customer throughout the whole process, from the co-design of the gasket to the…”

Source: RevenueBase Database · checked Sep 17, 2026
6Partial evidenceBasiano, ItalyHQ checked Sep 17, 202651-20047 contacts →

Partial evidence

Sealing solutions provider for critical applications.”

Source: RevenueBase Database · checked Sep 17, 2026
7Indirect evidenceCapriolo, ItalyHQ checked Sep 17, 202651-20047 contacts →

Indirect evidence

“GITIS specializes in the development, manufacturing and distribution of high-quality O-rings and seals for all applications with special requirements regarding temperature and…”

Source: RevenueBase Database · checked Sep 17, 2026
8Partial evidenceVillongo, ItalyHQ checked Sep 17, 2026201-50041 contacts →

Partial evidence

“We are leading manufacturer of PTFE hoses with over 30 years of experience.”

Source: RevenueBase Database · checked Sep 17, 2026
9Partial evidenceArcola, ItalyHQ checked Sep 17, 202651-20040 contacts →

Partial evidence

“Since 1958 in the market, leader in gasket materials and able to Supply Package for Oil & Gas, Chemical & Petrochemical fields.”

Source: RevenueBase Database · checked Sep 17, 2026
10Indirect evidencePero, ItalyHQ checked Sep 17, 202651-20039 contacts →

Indirect evidence

“Fluiten: Innovation and Reliability in Mechanical Seals Since 1962, Fluiten has been a symbol of excellence and innovation in the mechanical seal industry for rotating shafts.”

Source: RevenueBase Database · checked Sep 17, 2026
11Indirect evidenceCarpi, ItalyHQ checked Sep 17, 202651-20033 contacts →

Indirect evidence

“AS ASTON SEALS is a leading for designing, production and distribution of hydraulic and pneumatic seals, as well as wipers, guide rings and other custom parts.”

Source: RevenueBase Database · checked Sep 17, 2026
12Partial evidenceGrumello Del Monte, ItalyHQ checked Sep 17, 202651-20031 contacts →

Partial evidence

“The number 1 choice for industrial gaskets: experts in the processing of rubber for the production of technical items and industrial gaskets since 1977.”

Source: RevenueBase Database · checked Sep 17, 2026
13Strong evidenceVillongo, ItalyHQ checked Sep 17, 202651-20028 contacts →

Strong evidence

“SEVAL: Your Trusted Partner for High-Performance Seals and Gaskets (Since 1973) For over 50 years, SEVAL has been a leading Italian manufacturer of innovative sealing solutions.”

Source: RevenueBase Database · checked Sep 17, 2026
14Partial evidenceTorino, ItalyHQ checked Sep 17, 202651-20027 contacts →

Partial evidence

“Since 1926 we have been committed to manufacturing top quality flat gaskets and gasket sets for both original equipment and aftermarket.”

Source: RevenueBase Database · checked Sep 17, 2026
15Indirect evidenceMariano Comense, ItalyHQ checked Sep 17, 202611-5026 contacts →

Indirect evidence

“Since 1998 CAAST offers a wide range of products and materials specifically designed and tested for offshore platforms and extraction wells, compressors, manifolds, pipelines and…”

Source: RevenueBase Database · checked Sep 17, 2026
16Indirect evidenceFornace Zarattini (ra), ItalyHQ checked Sep 17, 202651-20024 contacts →

Indirect evidence

“With twenty five years of experience in the industry, Net Seals distributes seals and components for hydraulics and pneumatics in over 100 countries around the world, placing…”

Source: RevenueBase Database · checked Sep 17, 2026
17Partial evidenceAdrara San Martino, ItalyHQ checked Sep 17, 202651-20023 contacts →

Partial evidence

“Since its foundation, in 1979, SILICONITON is synonymous of great professionalism and experience in the manufacturing of gaskets in all rubbers, mainly in FKM, FVMQ, and HNBR…”

Source: RevenueBase Database · checked Sep 17, 2026
18Indirect evidenceBaranzate Di Bollate (mi), ItalyHQ checked Sep 17, 202611-5021 contacts →

Indirect evidence

“ARGO di T.M.”

Source: RevenueBase Database · checked Sep 17, 2026
19Indirect evidenceSan Giorgio Di Piano, ItalyHQ checked Sep 17, 202611-5020 contacts →

Indirect evidence

“Dal produzione, stampaggio, adesivizzazione, fustellatura, inserimento sigillante e taglio di guarnizioni, cornici e profili in gomma monocomponente, bicomponente e tricomponente”

Source: RevenueBase Database · checked Sep 17, 2026
20Indirect evidenceLegnano, ItalyHQ checked Sep 17, 202611-5019 contacts →

Indirect evidence

“Vito Rimoldi S.p.A.”

Source: RevenueBase Database · checked Sep 17, 2026
21Indirect evidenceCastelli Calepio, ItalyHQ checked Sep 17, 202611-5018 contacts →

Indirect evidence

“For over 25 years, we have been designing and manufacturing custom technical rubber seals for multiple industries: automotive, medical, aerospace, hydrogen, thermal, and aesthetic…”

Source: RevenueBase Database · checked Sep 17, 2026
22Indirect evidenceSanta Margherita Ligure, ItalyHQ checked Sep 17, 202611-5018 contacts →

Indirect evidence

“Design and manufacturing of Expansion joints and special components for naval, military and industrial application.”

Source: RevenueBase Database · checked Sep 17, 2026
23Partial evidenceCapriolo, ItalyHQ checked Sep 17, 202611-5016 contacts →

Partial evidence

“Founded in 1973 by Severino Torri, Torri Industrial Gaskets occupied at the beginning a small shed of 300 square meters, with a single injection molding machine.”

Source: RevenueBase Database · checked Sep 17, 2026
24Strong evidenceCastelli Calepio, ItalyHQ checked Sep 17, 202651-20015 contacts →

Strong evidence

“Part of the Hutchinson Group (subsidiary of TOTAL) since 2013, Gasket International has a unique expertise in sealing systems for industrial valves, engineering and manufacturing…”

Source: RevenueBase Database · checked Sep 17, 2026
25Indirect evidenceAdrara San Martino, ItalyHQ checked Sep 17, 202651-20015 contacts →

Indirect evidence

“Gom-Fer S.r.l, established in 1984, specialises in manufacturing o-rings, washers and technical rubber articles with or without metal inserts.”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 25 of 210 sealing and gasket manufacturers based in Italy

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Sealing and gasket manufacturers based in Italy at a glance

As of Sep 17, 2026
27.4%Verified-email coverage
10.0Average contacts per company
11-50Median size (employees)
5.7%Largest-city concentration · Castelli Calepio
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
53
11-50
102
51-200
43
201-500
5
501-1,000
3
1,001-5,000
1

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 210 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 sealing and gasket 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 “sealing and gasket 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 sealing and gasket 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 sealing and gasket 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, 575 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 17, 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 sealing and gasket 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 sealing and gasket manufacturers are there based in Italy?

RevenueBase identified 210 sealing and gasket 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?

ATP Innovative Sealing Solutions, headquartered in Modena, tops this list with the largest team on record.

Which city has the most sealing and gasket manufacturers?

Castelli Calepio leads with 12 headquartered companies, followed by Capriolo (8) and Villongo (8).

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 575 verified decision-maker contacts tracked across these 210 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 17, 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.