Company lists · Data refreshed September 2026
Top 25 Hydropower valve repair companies based in the United States
RevenueBase identified 147 hydropower valve repair companies headquartered in the United States as of September 2026 and tracks 2,428 professional contacts across them, including 880 with verified work emails. Houston is the largest hub.
This list covers hydropower valve repair companies headquartered in the United States, 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 20, 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.
The 25 largest hydropower valve repair companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 141 contacts → | ||||
Partial evidence “Industrial Valve (IVS) has been a leader in providing exceptional industrial valve service and solutions for over 48 years, prioritizing exceptional customer service that has…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 126 contacts → | ||||
Strong evidence “For more than 35 years, Bay Valve Service has been the leading provider of valve maintenance and repair services throughout the Western United States for industries including oil…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 110 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 90 contacts → | ||||
Strong evidence “Valsource is an industrial valve repair and maintenance services company located in Pasadena, TX, Port Allen, LA, and Memphis, TN servicing all major OEMs including but not…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 77 contacts → | ||||
Indirect evidence “Engineering Our focus is to create designs that maximize turbine capacity and efficiency while eliminating cavitation to meet our customers’ needs.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 71 contacts → | ||||
Partial evidence “Welcome to Total Valve Systems where we are celebrating 30 years of strong history and growth in servicing customers around the globe.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 70 contacts → | ||||
Partial evidence “Great Western Valve, Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 69 contacts → | ||||
Partial evidence “Caliber Valve & Controls is a valve and services provider in the industrial manufacturing industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 64 contacts → | ||||
Strong evidence “Flotech provides valve repair, tube repairs, safety valve certification, valve actuation, control valve repair and new valves from locations throughout the US Southeast.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 56 contacts → | ||||
Indirect evidence “Welcome to Kennedy Industries, Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 56 contacts → | ||||
Partial evidence “Hunt Valve, powered by Fairbanks Morse Defense, is an aggressive, small specialty valve engineering and manufacturing company with tremendous capabilities to serve the Navy market…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 51 contacts → | ||||
Strong evidence “Millennium Power Services is a full-service industrial valve repair shop and manufacturer of valve parts, with locations in Massachusetts, Maine, and Virginia.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 48 contacts → | ||||
Partial evidence “As our name states, we are "The Valve Service Specialists".” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 42 contacts → | ||||
Partial evidence “Gulf Coast Modification provides extensive modifications, cleaning, coating, inspection and testing services for industrial valves.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 41 contacts → | ||||
Indirect evidence “Quadco, Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 32 contacts → | ||||
Strong evidence “With offices in Ventura and Bakersfiled, California, Instrument Control Services stands as a trusted partner for industries seeking automation and valve repair services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 30 contacts → | ||||
Partial evidence “We provide top-tier new products to go along with our 24/7 repair and service capabilities to keep America's infrastructure up and running.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 27 contacts → | ||||
Strong evidence “Midwest Valve Services repairs all types and makes of valves for various process industries such as chemical, refinery, power, ethanol, oil & gas, and many others.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 26 contacts → | ||||
Strong evidence “A full service company specializing in isolation valve repair, safety relief valve repair, and electric actuation repair.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 26 contacts → | ||||
Partial evidence “Southern Valve Service is committed to providing a complete set of precision valve services, including our unique role in facilitating communications between valve OEMs and end…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 24 contacts → | ||||
Strong evidence “Established in 1990, Permian Valve Repair has been providing a wide range of valve services for the upstream, midstream and downstream markets across the Permian Basin.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 20 contacts → | ||||
Indirect evidence “Flow Control Services, LLC, was established in Louisiana in 2010 as a division of Flow Control Equipment, LLC in order to provide the highest quality service to equipment serving…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 20 contacts → | ||||
Strong evidence “Advanced Valve Technologies (AVT) manufacturers comprehensive solutions for the safe and sustainable repair and rehabilitation of critical water infrastructure.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 20 contacts → | ||||
Partial evidence “Manufacturer of Engineered-to-order Ball Valve for applications in Hydrocarbon, Power generation, Mining, Aerospace and Maritime markets.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 18 contacts → | ||||
Strong evidence “Established in 1992 as an entrepreneurial start-up offering electric valve actuator service, repair and parts support Georgia Western has evolved to become the largest electric…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
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: hydropower valve repair companies. 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 hydropower valve repair companies.
- Partial evidence
- Its own public description names part of hydropower valve repair companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name hydropower valve repair companies. 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 147 hydropower valve repair companies based in the United States
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Hydropower valve repair companies based in the United States at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 147 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 hydropower valve repair companies, 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 the United States whose own description of what they do matches “hydropower valve repair companies”. 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 hydropower valve repair companies), 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 hydropower valve repair companies, and records with no verified work email. Companies headquartered outside United States 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, 880 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 20, 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 hydropower valve repair companies, 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 hydropower valve repair companies are there based in the United States?
RevenueBase identified 147 hydropower valve repair companies headquartered in the United States 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?
Industrial Valve Sales & Service, headquartered in Mobile, tops this list with the largest team on record.
Which city has the most hydropower valve repair companies?
Houston leads with 12 headquartered companies, followed by Pasadena (4) and Houma (3).
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 880 verified decision-maker contacts tracked across these 147 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 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 147 hydropower valve repair companies based in the United States. Start with a free account, no credit card.
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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.
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