Company lists · Data refreshed September 2026

Top 15 Subsea equipment manufacturers based in Italy

RevenueBase identified 29 subsea equipment manufacturers headquartered in Italy as of September 2026 and tracks 1,172 professional contacts across them, including 352 with verified work emails. Ravenna is the largest hub.

This list covers subsea equipment 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 18, 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 18, 2026 86% judged on-target in blind review
29Companies
1,172Contacts tracked
352Verified emails
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The 15 largest subsea equipment manufacturers based in Italy

Ranked by team size
Top 15 of 29 subsea equipment manufacturers based in Italy, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to subsea equipment 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 evidenceCastellanza, ItalyHQ checked Sep 18, 2026501-1,000314 contacts →

Partial evidence

“PetrolValves is a leading manufacturer of valves and actuators for the oil and gas industry.”

Source: RevenueBase Database · checked Sep 18, 2026
2Indirect evidenceColico, ItalyHQ checked Sep 18, 2026501-1,000255 contacts →

Indirect evidence

“ATV is a privately owned company whose mission is to serve the Energy Industry with flow control solutions to the highest standards of quality and reliability.”

Source: RevenueBase Database · checked Sep 18, 2026
3Indirect evidenceLivorno, ItalyHQ checked Sep 18, 202651-200150 contacts →

Indirect evidence

“Drass has been continuously active since 1927 and currently is the largest diving manufacturing business, running most of the ongoing projects.”

Source: RevenueBase Database · checked Sep 18, 2026
4Partial evidenceFiorenzuola D'arda, ItalyHQ checked Sep 18, 202611-5032 contacts →

Partial evidence

“QUAM SRL A SOCIO UNICO has been a market leader operating since 2001 in the design, manufacturing and supply of complete Wellhead Equipment for the Upstream Onshore and Offshore…”

Source: RevenueBase Database · checked Sep 18, 2026
5Strong evidencePiantedo, ItalyHQ checked Sep 18, 202651-20031 contacts →

Strong evidence

“Valland designs and manufactures high-performance valves and engineered components for Oil & Gas, subsea, energy transition, and advanced industrial applications.”

Source: RevenueBase Database · checked Sep 18, 2026
6Indirect evidenceMariano Comense, ItalyHQ checked Sep 18, 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 18, 2026
7Partial evidenceVillorba, ItalyHQ checked Sep 18, 202611-5021 contacts →

Partial evidence

“THE SUBMARINE EXPLORATION COMPANY Suex was founded in with the goal to manufacturer a high performance technical diving vehicle for all diving professionals and applications, long…”

Source: RevenueBase Database · checked Sep 18, 2026
8Indirect evidenceRavenna, ItalyHQ checked Sep 18, 202611-5017 contacts →

Indirect evidence

“Siamo orgogliosi di condividere le tappe principali che hanno definito la nostra storia e la nostra crescita professionale nel corso degli anni.”

Source: RevenueBase Database · checked Sep 18, 2026
9Indirect evidenceMoncalieri, ItalyHQ checked Sep 18, 20261-1011 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 18, 2026
10Partial evidenceMilano, ItalyHQ checked Sep 18, 202611-5011 contacts →

Partial evidence

“Born in 1961, at the dawn of sea oil extraction, Resinex is one of the world leading manufacturer of floating systems.”

Source: RevenueBase Database · checked Sep 18, 2026
11Partial evidenceGorla Maggiore, ItalyHQ checked Sep 18, 20261-108 contacts →

Partial evidence

“Established in 1997, Nigrema specializes in the design, manufacture and supply of industrial valves, oil & gas, fittings, adapters, electrical and pneumatic controls.”

Source: RevenueBase Database · checked Sep 18, 2026
12Partial evidenceCatania, ItalyHQ checked Sep 18, 202611-503 contacts →

Partial evidence

“Founded in Catania, Italy, in 2015, AGEA was built on a singular commitment: to deliver excellence in subsea services.”

Source: RevenueBase Database · checked Sep 18, 2026
13Indirect evidenceMilano, ItalyHQ checked Sep 18, 20261-102 contacts →

Indirect evidence

“Douglas Marine now is a world wide leader for mooring devices production with a range of shock absorbers for boats from 7 up to 900 tons, asymmetric anchors self guidance devices…”

Source: RevenueBase Database · checked Sep 18, 2026
14Partial evidenceRavenna, ItalyHQ checked Sep 18, 202651-2001 contacts →

Partial evidence

“The company was established in 1951 and is specialised in offshore oil & gas and offshore wind equipments.”

Source: RevenueBase Database · checked Sep 18, 2026
15Indirect evidenceCastagneto Po, ItalyHQ checked Sep 18, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 18, 2026

Showing 15 of 29 subsea equipment manufacturers based in Italy

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Subsea equipment manufacturers based in Italy at a glance

As of Sep 18, 2026
30.0%Verified-email coverage
40.4Average contacts per company
11-50Median size (employees)
24.1%Largest-city concentration · Ravenna
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
10
51-200
6
501-1,000
2

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 29 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 subsea equipment 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 “subsea equipment 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 subsea equipment 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 subsea equipment 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, 352 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 18, 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 subsea equipment 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 subsea equipment manufacturers are there based in Italy?

RevenueBase identified 29 subsea equipment 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?

Petrolvalves, headquartered in Castellanza, tops this list with the largest team on record.

Which city has the most subsea equipment manufacturers?

Ravenna leads with 7 headquartered companies, followed by Colico (2) and Milano (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 352 verified decision-maker contacts tracked across these 29 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 18, 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.