Company lists · Data refreshed September 2026

Top 25 Foam insulation manufacturers based in the United States

Name: Foam 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 1,095 companies tracked

RevenueBase identified 1,095 foam insulation manufacturers headquartered in the United States as of September 2026 and tracks 17,049 professional contacts across them, including 4,352 with verified work emails. Houston is the largest hub.

This list covers foam 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

1,095Companies

17,049Contacts tracked

4,352Verified emails

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The 25 largest foam insulation manufacturers based in the United States

Ranked by team size

Top 25 of 1,095 foam 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 foam 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	Carpenter CO	Indirect evidence	Richmond, VA, United StatesHQ checked Sep 30, 2026	5,001-10,000	1,936 contacts →
	Indirect evidence “Founded in 1950, Carpenter Co.” Source: RevenueBase Database · checked Sep 30, 2026
2	DAP	Strong evidence	Baltimore, MD, United StatesHQ checked Sep 30, 2026	501-1,000	758 contacts →
	Strong evidence “DAP is a market leading manufacturer, innovator and marketer of home repair and construction products including caulks, sealants, spray foam insulation, adhesives, and patch and…” Source: RevenueBase Database · checked Sep 30, 2026
3	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
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	Alpha Insulation & Waterproofing	Strong evidence	Marietta, GA, United StatesHQ checked Sep 30, 2026	501-1,000	335 contacts →
	Strong 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
6	Future Foam, INC	Partial evidence	Council Bluffs, IA, United StatesHQ checked Sep 30, 2026	1,001-5,000	290 contacts →
	Partial evidence “Future Foam is a foam producer, OEM supplier and consumer retail company.” Source: RevenueBase Database · checked Sep 30, 2026
7	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
8	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
9	Rhino Linings Corporation	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 30, 2026	501-1,000	162 contacts →
	Indirect evidence “Rhino Linings Corporation, established in 1988 and headquartered in San Diego, California, is a privately-held corporation and world leader in sprayed and rolled urethane…” Source: RevenueBase Database · checked Sep 30, 2026
10	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
11	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
12	Nomaco	Partial evidence	Zebulon, NC, United StatesHQ checked Sep 30, 2026	51-200	143 contacts →
	Partial evidence “Nomaco is a recognized leader in the design and extrusion of performance engineered foam products and components for a wide range of markets including construction, home…” Source: RevenueBase Database · checked Sep 30, 2026
13	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
14	K-Flex USA	Strong evidence	Youngsville, NC, United StatesHQ checked Sep 30, 2026	201-500	133 contacts →
	Strong 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
15	General Plastics Mfg. CO	Indirect evidence	Tacoma, WA, United StatesHQ checked Sep 30, 2026	51-200	128 contacts →
	Indirect evidence “General Plastics Manufacturing Company - Where Great Ideas Take Shape - has been a leading innovator in the plastics industry for over 80 years.” Source: RevenueBase Database · checked Sep 30, 2026
16	Coastal	Partial evidence	East Windsor, NJ, United StatesHQ checked Sep 30, 2026	51-200	121 contacts →
	Partial evidence “From new construction homes to the complex specialty projects we’re famous for, Coastal is ready to get to work on your building, with a team of engineers that manufactures and…” Source: RevenueBase Database · checked Sep 30, 2026
17	Silvercote	Strong evidence	Greenville, SC, United StatesHQ checked Sep 30, 2026	51-200	120 contacts →
	Strong evidence “Silvercote, a Service Partners company, manufactures high-quality metal building insulation products customized to project specifications.” Source: RevenueBase Database · checked Sep 30, 2026
18	Foamcraft, INC	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 30, 2026	201-500	106 contacts →
	Indirect evidence “Our vision as a successful enterprise goes well beyond the normal objectives of positive financial performance.” Source: RevenueBase Database · checked Sep 30, 2026
19	MAP Of Easton INC	Partial evidence	Easton, PA, United StatesHQ checked Sep 30, 2026	501-1,000	105 contacts →
	Partial evidence “Using foams, polyesters and fiberglass, MAP develops full service manufacturing solutions from tooling inception through field installation.” Source: RevenueBase Database · checked Sep 30, 2026
20	Koala Insulation	Indirect evidence	Melbourne, FL, United StatesHQ checked Sep 30, 2026	11-50	98 contacts →
	Indirect evidence “Our mission is to deliver efficiency and improve comfort by addressing customer priorities, with expertise and simplicity, for an ultimately painless process.” Source: RevenueBase Database · checked Sep 30, 2026
21	Owens Corning Foamglas Industrial Insulation	Strong evidence	Toledo, OH, United StatesHQ checked Sep 30, 2026	201-500	98 contacts →
	Strong evidence “FOAMGLAS® insulation is part of Owens Corning, a global building and industrial materials leader with three integrated businesses that are dedicated to the manufacture and…” Source: RevenueBase Database · checked Sep 30, 2026
22	SWD	Partial evidence	Mesa, AZ, United StatesHQ checked Sep 30, 2026	51-200	94 contacts →
	Partial evidence “SWD is a leading manufacturer of construction materials providing state of the art solutions to the industry.” Source: RevenueBase Database · checked Sep 30, 2026
23	Plymouth Foam, An Altor Company	Partial evidence	Plymouth, WI, United StatesHQ checked Sep 30, 2026	51-200	89 contacts →
	Partial evidence “Altor Solutions® is a dynamic, engineering-driven company whose goal is to design and produce superior products that help customers solve their needs for Packaging, Insulation and…” Source: RevenueBase Database · checked Sep 30, 2026
24	Epsilyte	Partial evidence	The Woodlands, TX, United StatesHQ checked Sep 30, 2026	201-500	87 contacts →
	Partial evidence “Epsilyte is one of North America’s leading producers of advanced insulative materials.” Source: RevenueBase Database · checked Sep 30, 2026
25	Rmax, A Sika Brand	Partial evidence	Lewisville, TX, United StatesHQ checked Sep 30, 2026	5,001-10,000	81 contacts →
	Partial evidence “Since 1978, Rmax has been manufacturing high-quality polyiso insulation products and providing engineered solutions for enhanced energy efficiency.” 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: foam 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 foam insulation manufacturers.
Partial evidence: Its own public description names part of foam insulation manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name foam 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 1,095 foam insulation manufacturers based in the United States

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Foam insulation manufacturers based in the United States at a glance

As of Sep 30, 2026

25.5%Verified-email coverage

15.6Average contacts per company

11-50Median size (employees)

1.7%Largest-city concentration · Houston

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

490

11-50

392

51-200

132

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 1,095 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 foam 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 “foam 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 foam 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 foam 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, 4,352 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 foam 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 foam insulation manufacturers are there based in the United States?

RevenueBase identified 1,095 foam 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?

Carpenter CO, headquartered in Richmond, tops this list with the largest team on record.

Which city has the most foam insulation manufacturers?

Houston leads with 19 headquartered companies, followed by Oklahoma City (12) and Columbus (8).

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 4,352 verified decision-maker contacts tracked across these 1,095 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.