Company lists · Data refreshed September 2026
Top 25 High pressure reactor manufacturers based in the United States
RevenueBase identified 128 high pressure reactor manufacturers headquartered in the United States as of September 2026 and tracks 2,933 professional contacts across them, including 1,007 with verified work emails. Houston is the largest hub.
This list covers high pressure reactor manufacturers 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 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.
The 25 largest high pressure reactor manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 305 contacts → | ||||
Indirect evidence “Founded in 1977 as The Roberts Company, Roberts has grown from a small contractor to a large full service constructor and fabricator.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 277 contacts → | ||||
Indirect evidence “Graham Manufacturing, a GHM Company, designs and builds vacuum and heat transfer equipment for process industries worldwide.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 144 contacts → | ||||
Strong evidence “Haskel is the leading manufacturer of highly engineered pumps, gas compressors, valves and equipment designed to generate and control high pressures and deliver high-pressure…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 144 contacts → | ||||
Partial evidence “A global leader in the design, manufacturing and distribution of pressure vessel solutions with a heritage that includes Steel Fab, Northland Stainless, LZR FIT, and Silvan…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 142 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 133 contacts → | ||||
Strong evidence “PCC manufactures large build-to-print pressure vessels, reactors, and specialized equipment requiring close-tolerance machining and challenging welding and assembly made to robust…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 105 contacts → | ||||
Partial evidence “Taylor Forge Engineered Systems, Inc.( TFES), is a leading manufacturer of large custom fabricated steel products for the energy, chemical and aerospace industries with products…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 103 contacts → | ||||
Indirect evidence “A leading supplier of equipment and systems for the Chemical and Pharmaceutical industries.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 98 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 58 contacts → | ||||
Indirect evidence “We are a fifth-generation family business established in 1898.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 54 contacts → | ||||
Strong evidence “Contract Fabricators provides quality pressure vessels, reactors, FCC cyclones, reactor and regenerator heads/plenums to many industrial sites around the world.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 51 contacts → | ||||
Partial evidence “Welcome to HSI HSI is a fully integrated single source manufacturer of vessels and refractory lined equipment for the oil refining, chemical process, power generation and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 49 contacts → | ||||
Partial evidence “For over 35 years, Crystaphase has provided reactor solutions to hundreds of refining, petrochemical, and chemical plants worldwide.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 49 contacts → | ||||
Partial evidence “Powell manufactures specialized systems specific to the customer’s technical requirements which are unique and not available from any other manufacturer.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 48 contacts → | ||||
Partial evidence “Hydroprocessing Associates is a global full service catalyst and reactor maintenance company with facilities strategically located around the world in order to meet industry needs.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 47 contacts → | ||||
Strong evidence “Precision High Pressure Technology for Industrial Gases and Hydrogen Fluitron is a market leader in engineering and safely manufacturing innovative high-pressure technologies…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 41 contacts → | ||||
Strong evidence “Since 1899, Parr Instrument Company has been designing, manufacturing, and selling high quality laboratory instruments and apparatus for conducting chemical reactions and tests…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 39 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 39 contacts → | ||||
Partial evidence “Niles Steel Tank® is located in the southwest corner of Michigan and is a fabricator of custom and standard pressure vessels, hot water generators, process tanks, and storage…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 33 contacts → | ||||
Indirect evidence “Oliver Equipment Company (OEC) is proud to service the Refining, Petrochemical, Chemical, Midstream Oil & Gas, offshore, Power Generation, Water Treatment, and General Industrial…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 33 contacts → | ||||
Strong evidence “ENPRESS™ manufactures the world's finest composite pressure vessels and water treatment equipment, 100% Made in the USA.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 33 contacts → | ||||
Indirect evidence “White Oak Radiator Service, Inc (WORS, Inc) was established in 1982.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 31 contacts → | ||||
Strong evidence “Manufacturer of stainless steel pressure vessels for the Chemical, Pharmaceutical and Bio-Tech markets.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 30 contacts → | ||||
Strong evidence “Manufacturer of Quality Tanks, Vessels, and Equipment Steel-Pro is a custom manufacturer of ASME pressure vessels, biopharmaceutical equipment, modular skids, vacuum chambers…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 29 contacts → | ||||
Strong evidence “CP Industries is the world leader in the manufacturing of large seamless steel pressure vessels for high-pressured gases.” Source: RevenueBase Database · checked Sep 30, 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: high pressure reactor 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 high pressure reactor manufacturers.
- Partial evidence
- Its own public description names part of high pressure reactor manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name high pressure reactor 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 128 high pressure reactor manufacturers based in the United States
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High pressure reactor manufacturers based in the United States at a glance
As of Sep 30, 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 128 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 high pressure reactor 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 the United States whose own description of what they do matches “high pressure reactor 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 high pressure reactor 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 high pressure reactor manufacturers, 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, 1,007 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 high pressure reactor 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 high pressure reactor manufacturers are there based in the United States?
RevenueBase identified 128 high pressure reactor manufacturers 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?
The Roberts Company, headquartered in Winterville, tops this list with the largest team on record.
Which city has the most high pressure reactor manufacturers?
Houston leads with 15 headquartered companies, followed by Charlotte (3) and Fairview (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 1,007 verified decision-maker contacts tracked across these 128 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.
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