Company lists · Data refreshed September 2026

Top 25 Marine valve manufacturers worldwide

Name: Marine valve manufacturers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 1,146 companies tracked

RevenueBase identified 1,146 marine valve manufacturers worldwide as of September 2026 and tracks 16,755 professional contacts across them, including 4,154 with verified work emails. India is the largest market and Wenzhou the largest hub.

This list covers marine valve manufacturers worldwide, 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. Country and city lists for marine valve manufacturers follow the table.

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

1,146Companies

16,755Contacts tracked

4,154Verified emails

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The 25 largest marine valve manufacturers worldwide

Ranked by team size

Top 25 of 1,146 marine valve manufacturers worldwide, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to marine 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	L&t Valves	Partial evidence	Chennai, IndiaHQ checked Sep 30, 2026	501-1,000	1,151 contacts →
	Partial evidence “L&T Valves • Global leader in industrial valves with an experience of 6 decades • Subsidiary of Larsen & Toubro, USD 21 billion technology and engineering conglomerate • Over 20…” Source: RevenueBase Database · checked Sep 30, 2026
2	Velan INC	Strong evidence	Ville St-laurent, QC, CanadaHQ checked Sep 30, 2026	1,001-5,000	776 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
3	Valvitalia Group	Strong evidence	Rivanazzano Terme, ItalyHQ checked Sep 30, 2026	501-1,000	455 contacts →
	Strong 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
4	Oswal Industries Limited	Strong evidence	Mumbai, IndiaHQ checked Sep 30, 2026	201-500	394 contacts →
	Strong evidence “Oswal Industries Limited (OIL) is a leading manufacturer of Gate, Globe, Check & Ball, Cryogenic & Pressure Seal Valves in India OIL has India’s largest single location integrated…” Source: RevenueBase Database · checked Sep 30, 2026
5	Hawa Valves	Strong evidence	Navi Mumbai, IndiaHQ checked Sep 30, 2026	501-1,000	303 contacts →
	Strong evidence “Hawa Valves – Leading manufacturer of engineered valves for the Oil & Gas Hydrocarbon Industry (Upstream - Onshore, Offshore, FPSO, FLNG, Sub-sea / Downstream - Refinery…” Source: RevenueBase Database · checked Sep 30, 2026
6	Koso Kent Introl LTD	Strong evidence	Brighouse, United KingdomHQ checked Sep 30, 2026	51-200	279 contacts →
	Strong evidence “We design and manufacture high-quality valves to perform in some of the most severe service conditions throughout the world.” Source: RevenueBase Database · checked Sep 30, 2026
7	W&o	Strong evidence	Jacksonville, FL, United StatesHQ checked Sep 30, 2026	201-500	268 contacts →
	Strong evidence “Founded in 1975, W&O is one of the world’s largest suppliers of pipe, valves, fittings as well as actuation and engineered solutions to the maritime, and upstream oil and gas…” Source: RevenueBase Database · checked Sep 30, 2026
8	ATV	Indirect evidence	Colico, ItalyHQ checked Sep 30, 2026	501-1,000	255 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 30, 2026
9	Dembla Valves Limited	Partial evidence	Thane, IndiaHQ checked Sep 30, 2026	51-200	252 contacts →
	Partial evidence “Dembla Valves Ltd was incorporated in 1989, an ISO 9001: 2015, API Certified professional organization.” Source: RevenueBase Database · checked Sep 30, 2026
10	Microfinish Valves Pvt. LTD	Partial evidence	Hubli - Dharwad, IndiaHQ checked Sep 30, 2026	201-500	225 contacts →
	Partial evidence “Microfinish Valves Pvt.” Source: RevenueBase Database · checked Sep 30, 2026
11	Adamar International Maritime Services INC	Strong evidence	Izmir, TürkiyeHQ checked Sep 30, 2026	201-500	213 contacts →
	Strong evidence “Adamar International Maritime Services Inc, is a general ship supplier & technical services provider and marine valves manufacturer/ stockiest based in Türkiye with subsidiaries…” Source: RevenueBase Database · checked Sep 30, 2026
12	AYVAZ	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 30, 2026	1,001-5,000	199 contacts →
	Indirect evidence “Gemi sanayiine musluk üretmek üzere 1948 yılında kurulan Hacı Ayvaz Endüstriyel Mamuller, 1960 yılında bronz gemi vanaları, 1970 yılında ise sanayide kullanılan çeşitli tipteki…” Source: RevenueBase Database · checked Sep 30, 2026
13	Milwaukee Valve Company, LLC	Partial evidence	New Berlin, WI, United StatesHQ checked Sep 30, 2026	201-500	199 contacts →
	Partial evidence “Milwaukee Valve Company, founded in 1901, is internationally recognized for its state-of-the-art manufacturing facilities and new product innovations covering a wide range of…” Source: RevenueBase Database · checked Sep 30, 2026
14	OMB Valves	Strong evidence	Cenate Sotto, United StatesHQ checked Sep 30, 2026	201-500	176 contacts →
	Strong evidence “The OMB Valves group, headquartered in Cenate Sotto, Bergamo, Italy, is a family owned and operated diversified manufacturer of valves for the energy industries.” Source: RevenueBase Database · checked Sep 30, 2026
15	Neway Valve	Strong evidence	Suzhou, ChinaHQ checked Sep 30, 2026	1,001-5,000	164 contacts →
	Strong evidence “Neway Valve: One of the world’s leading industrial valve manufacturers, specializing in the R&D and production of industrial valves.” Source: RevenueBase Database · checked Sep 30, 2026
16	Perar S.P.A	Indirect evidence	Rescaldina, ItalyHQ checked Sep 30, 2026	201-500	163 contacts →
	Indirect evidence “Founded in 1962, Perar S.p.A.” Source: RevenueBase Database · checked Sep 30, 2026
17	Tecofi	Strong evidence	Corbas, FranceHQ checked Sep 30, 2026	51-200	146 contacts →
	Strong evidence “Founded in 1985 in the Rhône Alpes region, Tecofi designs, manufactures and distributes industrial valves for over 38 years.” Source: RevenueBase Database · checked Sep 30, 2026
18	Bonney Forge	Indirect evidence	Shirley Township, PA, United StatesHQ checked Sep 30, 2026	501-1,000	136 contacts →
	Indirect evidence “Bonney Forge was founded in 1876 outside of Philadelphia, Pennsylvania, at the time, manufacturing a variety of hand tools.” Source: RevenueBase Database · checked Sep 30, 2026
19	Aalborg Industries	Strong evidence	United StatesHQ checked Sep 30, 2026	501-1,000	123 contacts →
	Strong evidence “Today, Aalborg Industries is a part of the Alfa Laval Group and the world's leading marine boiler engineering company and manufacturer and a major supplier of inert gas systems…” Source: RevenueBase Database · checked Sep 30, 2026
20	BEL Valves	Strong evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 30, 2026	201-500	120 contacts →
	Strong evidence “BEL Valves designs, manufactures and maintains high integrity valves and actuators for subsea, surface and onshore applications.” Source: RevenueBase Database · checked Sep 30, 2026
21	Hamworthy Moss AS	Strong evidence	Oslo, United KingdomHQ checked Sep 30, 2026	501-1,000	119 contacts →
	Strong evidence “Hamworthy is a leading designer, developer and manufacturer of advanced marine fluid handling systems for ships and offshore oil and gas facilities.” Source: RevenueBase Database · checked Sep 30, 2026
22	RMT Valvomeccanica	Strong evidence	Solbiate Olona, ItalyHQ checked Sep 30, 2026	51-200	112 contacts →
	Strong evidence “The company is one of the oldest valve manufacturer in Italy.” Source: RevenueBase Database · checked Sep 30, 2026
23	VETUS	Indirect evidence	Schiedam, NetherlandsHQ checked Sep 30, 2026	51-200	111 contacts →
	Indirect evidence “Founded in 1964, VETUS sets the global standard in the design and manufacturing of complete onboard boat systems-including engines, generators, bow thrusters and control…” Source: RevenueBase Database · checked Sep 30, 2026
24	HP Valves	Partial evidence	Hengelo, NetherlandsHQ checked Sep 30, 2026	51-200	108 contacts →
	Partial evidence “Today HP Valves is providing a complete range of medium and high pressure valves from its newly built facilities at the High Tech Systems Park in Hengelo, The Netherlands, which…” Source: RevenueBase Database · checked Sep 30, 2026
25	Interapp	Strong evidence	Rotkreuz, SwitzerlandHQ checked Sep 30, 2026	51-200	108 contacts →
	Strong evidence “InterApp develops, manufactures and distributes valves and valve systems for the most demanding clients, applications and industry sectors in the world.” 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: marine 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 marine valve manufacturers.
Partial evidence: Its own public description names part of marine valve manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine 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 1,146 marine valve manufacturers worldwide

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Marine valve manufacturers worldwide at a glance

As of Sep 30, 2026

24.8%Verified-email coverage

14.6Average contacts per company

11-50Median size (employees)

5.9%Largest-city concentration · Wenzhou

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

265

11-50

360

51-200

353

201-500

105

501-1,000

1,001-5,000

10001+

Email recency is reported on each country list linked below.

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 marine 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.
Coverage: Every country. Country and city lists for marine valve manufacturers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “marine 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 marine 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 marine valve manufacturers, and records with no verified work email.
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, 4,154 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.

Marine valve manufacturers by location

7 lists · largest first

Every Marine valve manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 marine 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 marine valve manufacturers are there worldwide?

RevenueBase identified 1,146 marine valve manufacturers worldwide 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?

L&t Valves, headquartered in Chennai, tops this list with the largest team on record.

Which country has the most marine valve manufacturers?

India leads with 212 companies, followed by the United States (117) and Italy (64). Every marine valve manufacturers list by country and city is linked on this page.

Which city has the most marine valve manufacturers?

Wenzhou leads with 68 headquartered companies, followed by Ahmedabad (42) and Houston (24).

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 4,154 verified decision-maker contacts tracked across these 1,146 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.