Company lists · Data refreshed November 2026

Top 25 Fiberglass insulation contractors based in the United States

RevenueBase identified 1,238 company matches for fiberglass insulation contractors associated with the United States as of November 2026 and tracks 13,950 professional contacts across them, including 3,549 with verified work emails. Houston is the largest hub.

This list covers company matches for fiberglass insulation contractors associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
1,238Companies
13,950Contacts tracked
3,549Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest fiberglass insulation contractors based in the United States

Ranked by team size
Top 25 of 1,238 company matches for fiberglass insulation contractors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchDaytona Beach, FL, United StatesHQ recorded Nov 6, 202610001+1,608 contacts →

Exact match

“TruTeam is the nation’s largest insulation installer and we also install fireplaces, gutters, garage doors and more.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Nov 6, 20261,001-5,000517 contacts →

Exact match

“Distribution International (DI) a leading distributor of thermal and acoustical insulation and related supplies for maintenance and repair operations in the United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchCharlotte, CT, United StatesHQ recorded Nov 6, 20261,001-5,000502 contacts →

Exact match

“SPI is a global leader in the Distribution and Specialty Fabrication of insulation products for Thermal, Acoustic, Fire Protection and Refractory applications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMarietta, NC, United StatesHQ recorded Nov 6, 2026501-1,000358 contacts →

Exact match

“With over a quarter-century of experience in commercial insulation, waterproofing, spray fireproofing, spray foam insulation, and restoration, Alpha has served as the benchmark…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMedford, MA, United StatesHQ recorded Nov 6, 2026501-1,000340 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchGoodlettsville, OH, United StatesHQ recorded Nov 6, 2026501-1,000316 contacts →

Exact match

“Installation of Insulation, Garage Doors and Operators, Shelving, Shower Doors, Door and Bath Hardware, Mirrors, Blinds, Electric Fireplaces, Spray Foam Insulation: Open and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchHarahan, LA, United StatesHQ recorded Nov 6, 20261,001-5,000220 contacts →

Exact match

“Founded in New Orleans, LA in 1970, Insulations, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLynnwood, WA, United StatesHQ recorded Nov 6, 2026n/a173 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchApache Junction, FL, United StatesHQ recorded Nov 6, 20261,001-5,000171 contacts →

Exact match

“Rolling Plains Construction, founded in 1984, is the nation's largest fireproofing contractor.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchCleveland, OH, United StatesHQ recorded Nov 6, 202651-200169 contacts →

Exact match

“Established in 1977 and incorporated in 1985, USA Insulation has saved thousands of customers millions of dollars on their heating and air conditioning bills.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchCharlotte, United StatesHQ recorded Nov 6, 2026201-500159 contacts →

Exact match

“Established in and headquartered in Charlotte, N.C, Greenfiber is the largest manufacturer of cellulose insulation and fire and sound products.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchYoungsville, NC, United StatesHQ recorded Nov 6, 2026201-500159 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchGreenville, SC, United StatesHQ recorded Nov 6, 202651-200123 contacts →

Exact match

“Silvercote, a Service Partners company, manufactures high-quality metal building insulation products customized to project specifications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchWaco, TX, United StatesHQ recorded Nov 6, 20261,001-5,000114 contacts →

Exact match

“Chaparral Insulation has proudly served the mechanical insulation industry for more than 30 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMelbourne, GA, United StatesHQ recorded Nov 6, 202611-50105 contacts →

Exact match

“Our mission is to deliver efficiency and improve comfort by addressing customer priorities, with expertise and simplicity, for an ultimately painless process.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchTampa, FL, United StatesHQ recorded Nov 6, 202651-20092 contacts →

Exact match

“Headquartered in Tampa, Florida, CQ Insulation, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBeach City, OH, United StatesHQ recorded Nov 6, 2026201-50076 contacts →

Exact match

“Progressive Foam Technologies is a leading manufacturer of foam insulation products for home exterior, interior and foundation applications – and is also the inventor of insulated…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchAzusa, CA, United StatesHQ recorded Nov 6, 2026201-50075 contacts →

Exact match

“From the start of every project to its completion, we dedicate ourselves to providing you with the superior service that reflects our quality and professionalism.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchWestlake, OH, United StatesHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“Therm-All has been at the forefront of metal building insulation solutions since 1981.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202651-20068 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchGreen Bay, FL, United StatesHQ recorded Nov 6, 2026201-50061 contacts →

Exact match

“Bay Insulation Systems is the leading supplier of metal building insulation and systems in North America.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchBismarck, UT, United StatesHQ recorded Nov 6, 2026201-50058 contacts →

Exact match

“Miller Insulation Company is 100% employee-owned.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchWebberville, MI, United StatesHQ recorded Nov 6, 2026201-50058 contacts →

Exact match

“The investment you make with Applegate Insulation today will benefit you for a lifetime.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLake Zurich, IL, United StatesHQ recorded Nov 6, 202651-20054 contacts →

Exact match

“Founded in 1958, The Nelson Companies is a family of independently operated specialty contracting businesses serving commercial, industrial, healthcare, education, manufacturing…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBordentown, NJ, United StatesHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“With fabricating facilities in New Jersey, North Carolina and Georgia, Pacor custom fabricates and distributes fiberglass, aerogel, ceramic and foam industrial insulation products…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,238 fiberglass insulation contractors based in the United States

See the full list, filter by size, metro and specialty, and access 3,549 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Fiberglass insulation contractors based in the United States at a glance

As of Nov 6, 2026
25.4%Verified-email coverage
11.3Average contacts per company
11-50Median size (employees)
1.5%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
530
11-50
509
51-200
130
201-500
21
501-1,000
11
1,001-5,000
11
10001+
3

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 1,238 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “fiberglass insulation contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 3,549 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “fiberglass insulation contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many fiberglass insulation contractors are there based in the United States?

RevenueBase identified 1,238 company matches for fiberglass insulation contractors associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Truteam tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most fiberglass insulation contractors?

Houston leads with 18 company records, followed by Phoenix (11) and Columbus (10).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 3,549 professional contacts with verified work emails tracked across these 1,238 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,238 fiberglass insulation contractors based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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 SmartSearch, 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.