Company lists · Data refreshed September 2026

Top 25 Intumescent systems manufacturers based in the United States

Name: Intumescent systems 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 116 companies tracked

RevenueBase identified 116 intumescent systems manufacturers headquartered in the United States as of September 2026 and tracks 1,358 professional contacts across them, including 503 with verified work emails. Houston is the largest hub.

This list covers intumescent systems 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

116Companies

1,358Contacts tracked

503Verified emails

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The 25 largest intumescent systems manufacturers based in the United States

Ranked by team size

Top 25 of 116 intumescent systems 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 intumescent systems 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	NUTEC	Partial evidence	Huntersville, NC, United StatesHQ checked Sep 30, 2026	201-500	208 contacts →
	Partial evidence “NUTEC is a leading manufacturer of superior quality, high-temperature insulation and fire protection products.” Source: RevenueBase Database · checked Sep 30, 2026
2	Specified Technologies Inc. STI Firestop	Indirect evidence	Somerville, NJ, United StatesHQ checked Sep 30, 2026	201-500	187 contacts →
	Indirect evidence “For over 30 years, our team has worked hand in hand with the construction industry to create simple solutions to complex firestopping problems.” Source: RevenueBase Database · checked Sep 30, 2026
3	Isolatek International	Partial evidence	Stanhope, NJ, United StatesHQ checked Sep 30, 2026	51-200	134 contacts →
	Partial evidence “Isolatek, originally established in 1875 as a manufacturer of mineral wool, is today a global leader in the development, manufacture, and distribution of proprietary Passive Fire…” Source: RevenueBase Database · checked Sep 30, 2026
4	Smoke Guard	Indirect evidence	Boise, ID, United StatesHQ checked Sep 30, 2026	51-200	68 contacts →
	Indirect evidence “Smoke Guard, Inc.” Source: RevenueBase Database · checked Sep 30, 2026
5	Firetrace International	Strong evidence	Scottsdale, AZ, United StatesHQ checked Sep 30, 2026	51-200	66 contacts →
	Strong evidence “Firetrace International, a Halma company, is a global innovator and manufacturer of industry leading fire suppression systems; both pre-engineered for special hazard enclosures…” Source: RevenueBase Database · checked Sep 30, 2026
6	Apex Building Company	Partial evidence	Milan, TN, United StatesHQ checked Sep 30, 2026	51-200	57 contacts →
	Partial evidence “Apex Building Company provides fireproofing, spray insulation, caulking and waterproofing systems including traffic coatings, damproofing, expansion joint covers, air barriers…” Source: RevenueBase Database · checked Sep 30, 2026
7	Nanotech Materials	Indirect evidence	Houston, United StatesHQ checked Sep 30, 2026	11-50	41 contacts →
	Indirect evidence “NanoTech Materials, Inc.” Source: RevenueBase Database · checked Sep 30, 2026
8	Tecon Services INC	Indirect evidence	Tulsa, OK, United StatesHQ checked Sep 30, 2026	11-50	27 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
9	LCR Contractors A Topbuild Company	Indirect evidence	Mesquite, TX, United StatesHQ checked Sep 30, 2026	51-200	26 contacts →
	Indirect evidence “LCR Contractors is a Spray Applied Fireproofing company with offices in Dallas, Austin, Amarillo and Birmingham, AL.” Source: RevenueBase Database · checked Sep 30, 2026
10	ALL American Insulation, Corp	Indirect evidence	Miami, FL, United StatesHQ checked Sep 30, 2026	51-200	19 contacts →
	Indirect evidence “All American Insulation is a committed company specializing in residential, commercial, and industrial insulation, additionally, we do fire stopping.” Source: RevenueBase Database · checked Sep 30, 2026
11	True Fireproofing	Partial evidence	Tulsa, OK, United StatesHQ checked Sep 30, 2026	51-200	18 contacts →
	Partial evidence “Since 1955, True Fireproofing Company has been applying sprayed on fireproofing, intumescent fireproofing, as well as some types of sprayed on cellulose and fiberglass insulation.” Source: RevenueBase Database · checked Sep 30, 2026
12	Flameoff Coatings, INC	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 30, 2026	11-50	14 contacts →
	Partial evidence “FlameOFF® Coatings is a leading, innovative developer of fire resistant technologies, providing eco-friendly, fully tested fire retardant and fire resistance intumescent paint…” Source: RevenueBase Database · checked Sep 30, 2026
13	Norkote	Partial evidence	Everett, WA, United StatesHQ checked Sep 30, 2026	11-50	14 contacts →
	Partial evidence “Norkote was founded in 1952, as a manufacturer representative company in the fire protective coating industry.” Source: RevenueBase Database · checked Sep 30, 2026
14	Global Fireproof Solutions, INC	Partial evidence	Groveland, FL, United StatesHQ checked Sep 30, 2026	11-50	12 contacts →
	Partial evidence “Global Fireproof Solutions, Inc specializes in field and factory applied intumescent coatings and fire retardants.” Source: RevenueBase Database · checked Sep 30, 2026
15	American Fireproofing INC	Indirect evidence	Crown Point, IN, United StatesHQ checked Sep 30, 2026	11-50	12 contacts →
	Indirect evidence “American Fireproofing, Inc.(“AFI”) is a nationally recognized Chicago based contractor specializing in field and shop applied fireproofing and insulation services.” Source: RevenueBase Database · checked Sep 30, 2026
16	Thermal Designs	Indirect evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence “The company was founded over 40 years ago in Houston, TX manufacturing fireproof enclosures made of Captive Ceramic Fibre (CCFE).” Source: RevenueBase Database · checked Sep 30, 2026
17	Contego	Indirect evidence	Rochester, IN, United StatesHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence “Contego was formed in for the express purpose of seeking out the best fire prevention products available and expanding their use through refinement, education, and exposure.” Source: RevenueBase Database · checked Sep 30, 2026
18	Oaks Brothers INC	Indirect evidence	Greenbrier, AR, United StatesHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence “We specialize in fireproofing, insulation, and exterior skins for commercial new builds and remodels.” Source: RevenueBase Database · checked Sep 30, 2026
19	Fire Stop Systems, LLC	Indirect evidence	Naples, FL, United StatesHQ checked Sep 30, 2026	51-200	8 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
20	Stöbich Fire Protection Systems, INC	Partial evidence	North Charleston, SC, United StatesHQ checked Sep 30, 2026	11-50	8 contacts →
	Partial evidence “STÖBICH \| Customised fire protection solutions from a single source STRUCTURAL FIRE PROTECTION Textile smoke and fire protection systems and a wide range of conveyor system…” Source: RevenueBase Database · checked Sep 30, 2026
21	No-Burn, INC	Partial evidence	Wadsworth, OH, United StatesHQ checked Sep 30, 2026	11-50	8 contacts →
	Partial evidence “No-Burn, Inc.(NBI) is a building material manufacturer producing, selectively distributing, and technically supporting their products.” Source: RevenueBase Database · checked Sep 30, 2026
22	SIP Services LLC	Indirect evidence	Port Arthur, TX, United StatesHQ checked Sep 30, 2026	51-200	8 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
23	Select Spray Systems, LLC	Strong evidence	Salem, NH, United StatesHQ checked Sep 30, 2026	11-50	7 contacts →
	Strong evidence “Select Spray Systems, LLC is a fully licensed and certified specialty contracting firm specializing in spray applied fireproofing, intumescent coatings and spray on acoustical…” Source: RevenueBase Database · checked Sep 30, 2026
24	Firetect, Inc. Flame Fire Retardant Applicators And MFG	Indirect evidence	Valencia, CA, United StatesHQ checked Sep 30, 2026	11-50	7 contacts →
	Indirect evidence “Flame and Fire Retardant Manufacturing Sales, OEM, Training, CA Certified Applicators, NYC Cert of Fitness, Consulting.” Source: RevenueBase Database · checked Sep 30, 2026
25	South Atlantic Fireproofing Enterprise	Indirect evidence	Greensboro, NC, United StatesHQ checked Sep 30, 2026	11-50	7 contacts →
	Indirect evidence 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: intumescent systems 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 intumescent systems manufacturers.
Partial evidence: Its own public description names part of intumescent systems manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name intumescent systems 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 116 intumescent systems manufacturers based in the United States

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Intumescent systems manufacturers based in the United States at a glance

As of Sep 30, 2026

37.0%Verified-email coverage

11.7Average contacts per company

11-50Median size (employees)

5.2%Largest-city concentration · Houston

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 116 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 intumescent systems 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 “intumescent systems 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 intumescent systems 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 intumescent systems 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, 503 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 intumescent systems 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 intumescent systems manufacturers are there based in the United States?

RevenueBase identified 116 intumescent systems 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?

NUTEC, headquartered in Huntersville, tops this list with the largest team on record.

Which city has the most intumescent systems manufacturers?

Houston leads with 6 headquartered companies, followed by Miami (3) and New York (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 503 verified decision-maker contacts tracked across these 116 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.