Company lists · Data refreshed September 2026

Top 25 Metal building insulation manufacturers based in the United States

Name: Metal building insulation manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 1,326 companies tracked

RevenueBase identified 1,326 metal building insulation manufacturers headquartered in the United States as of September 2026 and tracks 21,764 professional contacts across them, including 5,764 with verified work emails. Houston is the largest hub.

This list covers metal building insulation 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.

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

1,326Companies

21,764Contacts tracked

5,764Verified emails

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The 25 largest metal building insulation manufacturers based in the United States

Ranked by team size

Top 25 of 1,326 metal building insulation manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to metal building insulation 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	Topbuild	Indirect evidence	Daytona Beach, FL, United StatesHQ checked Sep 30, 2026	n/a	692 contacts →
	Indirect evidence “TopBuild is now QXO.” Source: RevenueBase Database · checked Sep 30, 2026
2	Metal Sales Manufacturing Corporation	Partial evidence	Sellersburg, IN, United StatesHQ checked Sep 30, 2026	501-1,000	677 contacts →
	Partial evidence “Metal Sales Manufacturing Corporation is the premier nationwide provider of metal panels for the commercial, agricultural and residential construction industries.” Source: RevenueBase Database · checked Sep 30, 2026
3	Nucor Building Systems	Strong evidence	Waterloo, IN, United StatesHQ checked Sep 30, 2026	1,001-5,000	669 contacts →
	Strong evidence “Nucor Building Systems, a division of Nucor Corporation, has been a leader in the design and manufacture of custom-engineered metal building systems for more than two and a half…” Source: RevenueBase Database · checked Sep 30, 2026
4	SPI	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 30, 2026	1,001-5,000	571 contacts →
	Partial evidence “SPI is a global leader in the Distribution and Specialty Fabrication of insulation products for Thermal, Acoustic, Fire Protection and Refractory applications.” Source: RevenueBase Database · checked Sep 30, 2026
5	Distribution International	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	1,001-5,000	488 contacts →
	Partial evidence “Distribution International (DI) a leading distributor of thermal and acoustical insulation and related supplies for maintenance and repair operations in the United States.” Source: RevenueBase Database · checked Sep 30, 2026
6	STO Corp	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 30, 2026	51-200	396 contacts →
	Partial evidence “Sto is an international technology leader in the design and production of innovative building materials tailored to human needs.” Source: RevenueBase Database · checked Sep 30, 2026
7	Kingspan Insulated Panels North America	Strong evidence	Deland, FL, United StatesHQ checked Sep 30, 2026	1,001-5,000	348 contacts →
	Strong evidence “Who We Are: Kingspan is a trusted leader in the design, manufacture and supply of high performance building products and solutions for the global property and construction…” Source: RevenueBase Database · checked Sep 30, 2026
8	General Insulation Company, INC	Indirect evidence	Medford, MA, United StatesHQ checked Sep 30, 2026	501-1,000	342 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
9	Alpha Insulation & Waterproofing	Partial evidence	Marietta, GA, United StatesHQ checked Sep 30, 2026	501-1,000	335 contacts →
	Partial evidence “With over a quarter-century of experience in commercial insulation, waterproofing, spray fireproofing, spray foam insulation, and restoration, Alpha has served as the benchmark…” Source: RevenueBase Database · checked Sep 30, 2026
10	Whirlwind Steel Buildings And Components	Strong evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	501-1,000	330 contacts →
	Strong evidence “Whirlwind Steel is a manufacturer of pre-engineered metal buildings and metal building components for the agricultural, commercial, governmental, industrial, institutional…” Source: RevenueBase Database · checked Sep 30, 2026
11	Mueller	Strong evidence	Ballinger, TX, United StatesHQ checked Sep 30, 2026	501-1,000	322 contacts →
	Strong evidence “Mueller is a national brand, leading in high‑quality metal roong, wall and building solutions, proudly serving property owners and contractors across the country.” Source: RevenueBase Database · checked Sep 30, 2026
12	Macarthur CO	Indirect evidence	St. Paul, MN, United StatesHQ checked Sep 30, 2026	501-1,000	278 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
13	Kirby Building Systems, A Nucor Company	Strong evidence	Portland, TN, United StatesHQ checked Sep 30, 2026	201-500	277 contacts →
	Strong evidence “Headquartered in Portland, TN, Kirby Building Systems is a leading manufacturer of custom-engineered, high quality and cost effective metal building systems.” Source: RevenueBase Database · checked Sep 30, 2026
14	I&i Insulations, INC	Partial evidence	Harahan, LA, United StatesHQ checked Sep 30, 2026	1,001-5,000	228 contacts →
	Partial evidence “Founded in New Orleans, LA in 1970, Insulations, Inc.” Source: RevenueBase Database · checked Sep 30, 2026
15	Nucor Insulated Panel Group	Partial evidence	Lewisville, TX, United StatesHQ checked Sep 30, 2026	1,001-5,000	209 contacts →
	Partial evidence “Nucor’s Insulated Panel Group consists of two insulated metal panel brands, CENTRIA, and Metl-Span.” Source: RevenueBase Database · checked Sep 30, 2026
16	Fabral	Partial evidence	Bossier City, LA, United StatesHQ checked Sep 30, 2026	201-500	195 contacts →
	Partial evidence “Fabral is the premier supplier of metal roofing and wall systems for residential, architectural, industrial, commercial and agricultural applications.” Source: RevenueBase Database · checked Sep 30, 2026
17	ALL Weather Insulated Panels	Indirect evidence	Vacaville, CA, United StatesHQ checked Sep 30, 2026	201-500	189 contacts →
	Indirect evidence “All Weather Insulated Panels Headquartered in Vacaville, CA, All Weather Insulated Panels (AWIP) has three state-of-the-art continuous line manufacturing facilities in Vacaville…” Source: RevenueBase Database · checked Sep 30, 2026
18	Interior Supply, INC	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 30, 2026	201-500	180 contacts →
	Indirect evidence “Interior Supply Inc.” Source: RevenueBase Database · checked Sep 30, 2026
19	USA Insulation	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 30, 2026	51-200	169 contacts →
	Partial evidence “Established in 1977 and incorporated in 1985, USA Insulation has saved thousands of customers millions of dollars on their heating and air conditioning bills.” Source: RevenueBase Database · checked Sep 30, 2026
20	Insulfoam	Indirect evidence	Puyallup, WA, United StatesHQ checked Sep 30, 2026	501-1,000	149 contacts →
	Indirect evidence “Insulfoam, a division of Carlisle Construction Materials, is the largest manufacutrer of block molded Expanded Polysytrene (EPS) products in North America.” Source: RevenueBase Database · checked Sep 30, 2026
21	Greenfiber	Strong evidence	Charlotte, United StatesHQ checked Sep 30, 2026	201-500	148 contacts →
	Strong evidence “Established in and headquartered in Charlotte, N.C, Greenfiber is the largest manufacturer of cellulose insulation and fire and sound products.” Source: RevenueBase Database · checked Sep 30, 2026
22	Armstrong Steel	Strong evidence	Greenwood Village, CO, United StatesHQ checked Sep 30, 2026	51-200	145 contacts →
	Strong evidence “Armstrong Steel has grown from a small steel building supply company to one of the largest manufacturers of pre-engineered metal buildings in the nation.” Source: RevenueBase Database · checked Sep 30, 2026
23	Johns Manville Industrial Insulation	Strong evidence	Denver, CO, United StatesHQ checked Sep 30, 2026	201-500	141 contacts →
	Strong evidence “JM is the leading manufacturer of thermal insulation solutions for high and low-temperature industrial applications.” Source: RevenueBase Database · checked Sep 30, 2026
24	Metl-Span	Partial evidence	Lewisville, TX, United StatesHQ checked Sep 30, 2026	201-500	135 contacts →
	Partial evidence “Metl-Span is a dynamic industry innovator dedicated to manufacturing and marketing the highest quality insulated building panel products.” Source: RevenueBase Database · checked Sep 30, 2026
25	K-Flex USA	Partial evidence	Youngsville, NC, United StatesHQ checked Sep 30, 2026	201-500	133 contacts →
	Partial evidence “K-FLEX USA is the North American division of the IK Insulation Group, an innovative leader in flexible elastomeric foam insulation with 12 production facilities worldwide and a…” 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: metal building insulation 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 metal building insulation manufacturers.
Partial evidence: Its own public description names part of metal building insulation manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name metal building insulation 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 1,326 metal building insulation manufacturers based in the United States

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Metal building insulation manufacturers based in the United States at a glance

As of Sep 30, 2026

26.5%Verified-email coverage

16.4Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · Houston

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

546

11-50

497

51-200

185

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,326 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 metal building insulation 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 “metal building insulation 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 metal building insulation 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 metal building insulation 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, 5,764 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.

Metal building insulation manufacturers by metro

Metal building insulation manufacturers in Houston29

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 metal building insulation 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 metal building insulation manufacturers are there based in the United States?

RevenueBase identified 1,326 metal building insulation 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?

Topbuild, headquartered in Daytona Beach, tops this list with the largest team on record.

Which city has the most metal building insulation manufacturers?

Houston leads with 29 headquartered companies, followed by Phoenix (15) and Oklahoma City (10).

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 5,764 verified decision-maker contacts tracked across these 1,326 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.