Company lists · Data refreshed September 2026
Top 25 Underground tank manufacturers based in the United States
RevenueBase identified 263 underground tank manufacturers headquartered in the United States as of September 2026 and tracks 6,859 professional contacts across them, including 2,397 with verified work emails. Austin is the largest hub.
This list covers underground tank 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 underground tank manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 704 contacts → | ||||
Partial evidence “HMT is the global leader in aboveground storage tank solutions.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 432 contacts → | ||||
Indirect evidence “CST Industries, Inc.(CST™), is the complete storage system provider for engineering and manufacturing professionals in thousands of different industries and applications…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 361 contacts → | ||||
Indirect evidence “For over 50 years, Landmark has been a leading provider of engineering, construction, and asset management services for storage solutions in the water, wastewater, power, and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 197 contacts → | ||||
Partial evidence “DCI, Inc, an employee-owned company, is a world leader in the manufacturing and servicing of both factory and field-fabricated stainless steel storage tanks and processing tanks.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 177 contacts → | ||||
Indirect evidence “CROM is a water infrastructure solutions provider dedicated to the innovation, design, construction, restoration, and maintenance of the nation’s essential infrastructure.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 176 contacts → | ||||
Strong evidence “AT TANK CONNECTION, WE ENGINEER EXCELLENCE Tank Connection is the leading bolted tank manufacturer for factory coated bolted storage tanks and aluminum geodesic dome covers for…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 173 contacts → | ||||
Partial evidence “Caldwell has constructed a wide variety of tanks for all kinds of applications throughout North America, Beyond the building phase, we offer services for the rehabilitation of…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 152 contacts → | ||||
Strong evidence “For over 45 years, Xerxes has designed and manufactured fiberglass storage tanks that provide reliable, secure underground storage for fuel, water and wastewater.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 121 contacts → | ||||
Indirect evidence “PermianLide is the largest U.S.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 118 contacts → | ||||
Partial evidence “Petrosmith builds ASME and API certified tanks, vessels, and modular systems - custom-made to fit your specs and built to perform.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 117 contacts → | ||||
Strong evidence “Modern Welding Company, is the largest underground and aboveground steel tank manufacturer in the United States.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 110 contacts → | ||||
Partial evidence “Tank Services is an aboveground storage tank company in Texas.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 108 contacts → | ||||
Partial evidence “ATEC specializes in the design, fabrication, construction of welded above ground storage tank's per API 650/620 and AWWA D100 standards and specifications.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 107 contacts → | ||||
Partial evidence “Preload is the world's leader in prestressed concrete tank design and construction, having completed more than 3,700 tanks of various types, sizes and designs.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 106 contacts → | ||||
Partial evidence “Tarsco has served industrial clients over 40 years specializing in engineering, manufacturing, and construction of customized, aboveground welded storage tank systems.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 99 contacts → | ||||
Partial evidence “Since 1946, Highland Tank has been upholding a tradition of uncompromising craftsmanship and a commitment to providing solutions to even the most challenging storage tank projects…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 98 contacts → | ||||
Partial evidence “Advance Tank and Construction is a nationwide company that specializes in the design, fabrication, and erection of above-ground welded steel storage tanks.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 98 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 96 contacts → | ||||
Partial evidence “Fisher Tank Company builds field erected welded steel tanks.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 92 contacts → | ||||
Partial evidence “Maguire offers a full spectrum of water storage tank services including new and pre-owned tanks, relocation of existing tanks, repairs and replacement parts, lead abatement…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 91 contacts → | ||||
Partial evidence “The leader in innovative tank systems, Poly Processing is dedicated to cost effective storage system safety and innovation.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 79 contacts → | ||||
Partial evidence “Whether you are expanding or planning single construction, Specialty Tank Services (STS) can provide the Engineering and Design for your Aboveground Storage Tanks.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 78 contacts → | ||||
Partial evidence “Phoenix Fabricators and Erectors, LLC is an industry-leading provider of steel water storage tanks for the potable water and industrial markets.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 73 contacts → | ||||
Partial evidence “Phillips Tank & Structure (PTS) specializes in providing design, fabrication, and construction of above-ground storage tanks and other related steel and aluminum structures.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 72 contacts → | ||||
Partial evidence “Privately owned and professionally managed, PAT Tank, Inc.” 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: underground tank 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 underground tank manufacturers.
- Partial evidence
- Its own public description names part of underground tank manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name underground tank 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 263 underground tank manufacturers based in the United States
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Underground tank 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 263 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 underground tank 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 “underground tank 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 underground tank 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 underground tank 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, 2,397 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 underground tank 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 underground tank manufacturers are there based in the United States?
RevenueBase identified 263 underground tank 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?
HMT LLC, headquartered in The Woodlands, tops this list with the largest team on record.
Which city has the most underground tank manufacturers?
Austin leads with 4 headquartered companies, followed by Dripping Springs (4) and Garden City (4).
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 2,397 verified decision-maker contacts tracked across these 263 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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