Company lists · Data refreshed October 2026
Top 24 Fiberglass duct board manufacturers based in the United States
RevenueBase identified 88 company matches for fiberglass duct board manufacturers associated with the United States as of October 2026 and tracks 2,841 professional contacts across them, including 640 with verified work emails. Houston is the largest hub.
This list covers company matches for fiberglass duct board manufacturers 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 October 12, 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.
The 24 largest fiberglass duct board manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 529 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 · Oct 12, 2026 · View company records in RevenueBase | |||||
| 2 | 255 contacts → | ||||
Exact match “M&M Manufacturing™ (“M&M”) is one of the country’s largest producers of sheet metal products, primarily servicing the air distribution and ventilation market.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 3 | 240 contacts → | ||||
Exact match “Southwark Metal Mfg.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 4 | 231 contacts → | ||||
Exact match “Quietflex Manufacturing is a manufacturer of Flex Duct for HVAC and Textile Fiberglass products based out of 4518 Brittmoore Rd, Houston, Texas, United States.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 5 | 115 contacts → | ||||
Exact match “Enduro Composites is a vertically integrated manufacturer of FRP composites.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 6 | 106 contacts → | ||||
Exact match “ATCO Rubber Products is the worldwide leader in flex duct systems.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 7 | 48 contacts → | ||||
Exact match “MKT Metal Manufacturing has been delivering precision-fabricated HVAC ductwork since 2004.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 8 | 34 contacts → | ||||
Exact match “Since 1961, J.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 9 | 33 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 10 | 27 contacts → | ||||
Exact match “Since 1988 L&L Insulations has provided insulation products and specialty services to the manufacturing and construction industries throughout the Midwest.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 11 | 26 contacts → | ||||
Exact match “Crown Products is a key partner with wholesale distributors and manufacturer representatives in the HVAC industry.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 12 | 23 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 13 | 21 contacts → | ||||
Exact match “Northeastern Sheet Metal is New Englands premier manufacturer of Sheet Metal products and Accessories.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 14 | 20 contacts → | ||||
Exact match “Stabilit America Inc, is the leading manufacturer of fiberglass reinforced plastic panels in North America, providing the largest selection of Fiberglass Reinforced Plastic…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 15 | 19 contacts → | ||||
Exact match “As a manufacturer, distributor and fabricator, GLT Products line of industrial insulation products are used worldwide in mechanical, thermal and acoustical insulation projects.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 16 | 19 contacts → | ||||
Exact match “AccuDuct Manufacturing began providing products to the HVAC industry in 1987.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 17 | 19 contacts → | ||||
Exact match “Seal-Tite® is America's preferred manufacturer of air distribution systems.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 18 | 15 contacts → | ||||
Exact match “Great Pacific Elbow is a manufacturer of HVAC sheet metal ductwork, fittings, and accessories.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 19 | 15 contacts → | ||||
Exact match “Plenums Plus is a Southern California manufacturer that specializes in fabricating rectangular, round, and flat oval duct & fittings in a variety of materials.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 20 | 14 contacts → | ||||
Exact match “Inside the Phoenix Metals sq ft facility, we manufacture HVAC duct, fittings and custom components at commercial scale with machinery investments driven by skilled CAD/CAM…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 21 | 10 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 22 | 10 contacts → | ||||
Exact match “Established in 1967, LAMBRO focuses on providing ventilation solutions for HVAC air distribution in both residential and commercial markets.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 23 | 10 contacts → | ||||
Exact match “Since 1959 Spunstrand® Inc.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 24 | 8 contacts → | ||||
Exact match “CLWARD is manufacturer of HVAC sheet metal accessory products used in the commercial and light industrial markets.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “fiberglass duct board manufacturers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 24 of 88 fiberglass duct board manufacturers based in the United States
See the full list, filter by size, metro and specialty, and access 640 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Fiberglass duct board manufacturers based in the United States at a glance
As of Oct 12, 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 88 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 duct board manufacturers” 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 640 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 October 12, 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 duct board manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many fiberglass duct board manufacturers are there based in the United States?
RevenueBase identified 88 company matches for fiberglass duct board manufacturers associated with the United States as of October 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?
SPI tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most fiberglass duct board manufacturers?
Houston leads with 5 company records, followed by Moscow (3) and Cleveland (2).
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 640 professional contacts with verified work emails tracked across these 88 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 October 12, 2026.
Ready to reach these companies? Verified emails and direct dials for all 88 fiberglass duct board manufacturers based in the United States. Start with a free account, no credit card.
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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 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.
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Company intelligence · public preview
Top 24 fiberglass duct board manufacturers based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 88 matching company records for fiberglass duct board manufacturers based in the United States, with 2,841 tracked contacts and 640 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 12, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 24 fiberglass duct board manufacturers based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | SPIspi-co.com HQ: Charlotte, NC, United StatesReported employees: 1,001-5,000 | Charlotte, NC, United States | 1,001-5,000 | Exact match | 529 contacts → |
“SPI is a global leader in the Distribution and Specialty Fabrication of insulation products for Thermal, Acoustic, Fire Protection and Refractory applications.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  M&m Manufacturing Companymmmfg.comHQ: Fort Worth, TX, United StatesReported employees: 501-1,000 | Fort Worth, TX, United States | 501-1,000 | Exact match | 255 contacts → |
“M&M Manufacturing™ (“M&M”) is one of the country’s largest producers of sheet metal products, primarily servicing the air distribution and ventilation market.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Southwark Metal Mfg. COsouthwarkmetal.com HQ: Philadelphia, PA, United StatesReported employees: 1,001-5,000 | Philadelphia, PA, United States | 1,001-5,000 | Exact match | 240 contacts → |
“Southwark Metal Mfg.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Quietflex Manufacturingquietflex.com HQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 231 contacts → |
“Quietflex Manufacturing is a manufacturer of Flex Duct for HVAC and Textile Fiberglass products based out of 4518 Brittmoore Rd, Houston, Texas, United States.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Enduro Compositescreativecompositesgroup.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 115 contacts → |
“Enduro Composites is a vertically integrated manufacturer of FRP composites.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Atco Rubber Products, INCatcoflex.comHQ: Fort Worth, TX, United StatesReported employees: 1,001-5,000 | Fort Worth, TX, United States | 1,001-5,000 | Exact match | 106 contacts → |
“ATCO Rubber Products is the worldwide leader in flex duct systems.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | MKT Metal Manufacturingmktduct.com HQ: Manchester Township, PA, United StatesReported employees: 51-200 | Manchester Township, PA, United States | 51-200 | Exact match | 48 contacts → |
“MKT Metal Manufacturing has been delivering precision-fabricated HVAC ductwork since 2004.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | JP Lamborn Co. JPLjplflex.com HQ: Fresno, CA, United StatesReported employees: 501-1,000 | Fresno, CA, United States | 501-1,000 | Exact match | 34 contacts → |
“Since 1961, J.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Gray Metal Products, INCgraymetal.com HQ: Avon, NY, United StatesReported employees: 51-200 | Avon, NY, United States | 51-200 | Exact match | 33 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | L&l Insulationsllinsulation.com HQ: Des Moines, IA, United StatesReported employees: 51-200 | Des Moines, IA, United States | 51-200 | Exact match | 27 contacts → |
“Since 1988 L&L Insulations has provided insulation products and specialty services to the manufacturing and construction industries throughout the Midwest.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Crown Products Company, INCcrownproductsco.comHQ: Jacksonville, FL, United StatesReported employees: 51-200 | Jacksonville, FL, United States | 51-200 | Exact match | 26 contacts → |
“Crown Products is a key partner with wholesale distributors and manufacturer representatives in the HVAC industry.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Scott Manufacturing, LLCscott-mfg.com HQ: Henderson, KY, United StatesReported employees: 51-200 | Henderson, KY, United States | 51-200 | Exact match | 23 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Northeastern Sheet Metal, INCnesmcorp.com HQ: Goffstown, NH, United StatesReported employees: 51-200 | Goffstown, NH, United States | 51-200 | Exact match | 21 contacts → |
“Northeastern Sheet Metal is New Englands premier manufacturer of Sheet Metal products and Accessories.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Stabilit Americastabilitamerica.com HQ: Moscow, TN, United StatesReported employees: 51-200 | Moscow, TN, United States | 51-200 | Exact match | 20 contacts → |
“Stabilit America Inc, is the leading manufacturer of fiberglass reinforced plastic panels in North America, providing the largest selection of Fiberglass Reinforced Plastic…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | GLT Productsgltproducts.com HQ: Solon, OH, United StatesReported employees: 201-500 | Solon, OH, United States | 201-500 | Exact match | 19 contacts → |
“As a manufacturer, distributor and fabricator, GLT Products line of industrial insulation products are used worldwide in mechanical, thermal and acoustical insulation projects.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Accuduct Manufacturing, INCaccuduct.com HQ: Algona, WA, United StatesReported employees: 51-200 | Algona, WA, United States | 51-200 | Exact match | 19 contacts → |
“AccuDuct Manufacturing began providing products to the HVAC industry in 1987.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Seal-Tite, LLCsealtitehvac.com HQ: Hillsboro, OH, United StatesReported employees: 51-200 | Hillsboro, OH, United States | 51-200 | Exact match | 19 contacts → |
“Seal-Tite® is America's preferred manufacturer of air distribution systems.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Great Pacific Elbowgreatpacificelbow.com HQ: Chino, CA, United StatesReported employees: 51-200 | Chino, CA, United States | 51-200 | Exact match | 15 contacts → |
“Great Pacific Elbow is a manufacturer of HVAC sheet metal ductwork, fittings, and accessories.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Plenums Plusplenumsplus.com HQ: Chula Vista, United StatesReported employees: 51-200 | Chula Vista, United States | 51-200 | Exact match | 15 contacts → |
“Plenums Plus is a Southern California manufacturer that specializes in fabricating rectangular, round, and flat oval duct & fittings in a variety of materials.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Phoenix Metals CMP Metalswemakeduct.com HQ: Baltimore, MD, United StatesReported employees: 51-200 | Baltimore, MD, United States | 51-200 | Exact match | 14 contacts → |
“Inside the Phoenix Metals sq ft facility, we manufacture HVAC duct, fittings and custom components at commercial scale with machinery investments driven by skilled CAD/CAM…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | SRS Fiberglass Productssrsfiberglass.com HQ: Muskegon, MI, United StatesReported employees: 51-200 | Muskegon, MI, United States | 51-200 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | Lambro Industries, INClambro.net HQ: Amityville, NY, United StatesReported employees: 51-200 | Amityville, NY, United States | 51-200 | Exact match | 10 contacts → |
“Established in 1967, LAMBRO focuses on providing ventilation solutions for HVAC air distribution in both residential and commercial markets.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Spunstrand INCspunstrand.com HQ: Post Falls, ID, United StatesReported employees: 11-50 | Post Falls, ID, United States | 11-50 | Exact match | 10 contacts → |
“Since 1959 Spunstrand® Inc.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Clward, INCclward.com HQ: Canonsburg, PA, United StatesReported employees: 51-200 | Canonsburg, PA, United States | 51-200 | Exact match | 8 contacts → |
“CLWARD is manufacturer of HVAC sheet metal accessory products used in the commercial and light industrial markets.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 88 company matches
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Fiberglass duct board manufacturers: dataset insights
October 12, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
88 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 88 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 12, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for fiberglass duct board manufacturers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many fiberglass duct board manufacturers did RevenueBase find based in the United States?
The saved snapshot records 88 matching company records, 2,841 tracked contacts and 640 verified emails. The public preview displays 24 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 12, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 24 fiberglass duct board manufacturers based in the United States. Snapshot: October 12, 2026. https://revenuebase.ai/companies/fiberglass-duct-board-manufacturers/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
- Real estate companies based in the United States
Company intelligence · public preview
Top 24 fiberglass duct board manufacturers based in the United States
RevenueBase records 88 matching company records for fiberglass duct board manufacturers based in the United States, with 2,841 tracked contacts and 640 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 12, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 24 fiberglass duct board manufacturers based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | SPIspi-co.com HQ: Charlotte, NC, United StatesReported employees: 1,001-5,000 | Charlotte, NC, United States | 1,001-5,000 | Exact match | 529 contacts → |
“SPI is a global leader in the Distribution and Specialty Fabrication of insulation products for Thermal, Acoustic, Fire Protection and Refractory applications.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | M&m Manufacturing Companymmmfg.com HQ: Fort Worth, TX, United StatesReported employees: 501-1,000 | Fort Worth, TX, United States | 501-1,000 | Exact match | 255 contacts → |
“M&M Manufacturing™ (“M&M”) is one of the country’s largest producers of sheet metal products, primarily servicing the air distribution and ventilation market.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Southwark Metal Mfg. COsouthwarkmetal.com HQ: Philadelphia, PA, United StatesReported employees: 1,001-5,000 | Philadelphia, PA, United States | 1,001-5,000 | Exact match | 240 contacts → |
“Southwark Metal Mfg.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Quietflex Manufacturingquietflex.com HQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 231 contacts → |
“Quietflex Manufacturing is a manufacturer of Flex Duct for HVAC and Textile Fiberglass products based out of 4518 Brittmoore Rd, Houston, Texas, United States.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Enduro Compositescreativecompositesgroup.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 115 contacts → |
“Enduro Composites is a vertically integrated manufacturer of FRP composites.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Atco Rubber Products, INCatcoflex.com HQ: Fort Worth, TX, United StatesReported employees: 1,001-5,000 | Fort Worth, TX, United States | 1,001-5,000 | Exact match | 106 contacts → |
“ATCO Rubber Products is the worldwide leader in flex duct systems.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | MKT Metal Manufacturingmktduct.com HQ: Manchester Township, PA, United StatesReported employees: 51-200 | Manchester Township, PA, United States | 51-200 | Exact match | 48 contacts → |
“MKT Metal Manufacturing has been delivering precision-fabricated HVAC ductwork since 2004.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | JP Lamborn Co. JPLjplflex.com HQ: Fresno, CA, United StatesReported employees: 501-1,000 | Fresno, CA, United States | 501-1,000 | Exact match | 34 contacts → |
“Since 1961, J.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Gray Metal Products, INCgraymetal.com HQ: Avon, NY, United StatesReported employees: 51-200 | Avon, NY, United States | 51-200 | Exact match | 33 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | L&l Insulationsllinsulation.com HQ: Des Moines, IA, United StatesReported employees: 51-200 | Des Moines, IA, United States | 51-200 | Exact match | 27 contacts → |
“Since 1988 L&L Insulations has provided insulation products and specialty services to the manufacturing and construction industries throughout the Midwest.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Crown Products Company, INCcrownproductsco.com HQ: Jacksonville, FL, United StatesReported employees: 51-200 | Jacksonville, FL, United States | 51-200 | Exact match | 26 contacts → |
“Crown Products is a key partner with wholesale distributors and manufacturer representatives in the HVAC industry.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Scott Manufacturing, LLCscott-mfg.com HQ: Henderson, KY, United StatesReported employees: 51-200 | Henderson, KY, United States | 51-200 | Exact match | 23 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Northeastern Sheet Metal, INCnesmcorp.com HQ: Goffstown, NH, United StatesReported employees: 51-200 | Goffstown, NH, United States | 51-200 | Exact match | 21 contacts → |
“Northeastern Sheet Metal is New Englands premier manufacturer of Sheet Metal products and Accessories.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Stabilit Americastabilitamerica.com HQ: Moscow, TN, United StatesReported employees: 51-200 | Moscow, TN, United States | 51-200 | Exact match | 20 contacts → |
“Stabilit America Inc, is the leading manufacturer of fiberglass reinforced plastic panels in North America, providing the largest selection of Fiberglass Reinforced Plastic…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | GLT Productsgltproducts.com HQ: Solon, OH, United StatesReported employees: 201-500 | Solon, OH, United States | 201-500 | Exact match | 19 contacts → |
“As a manufacturer, distributor and fabricator, GLT Products line of industrial insulation products are used worldwide in mechanical, thermal and acoustical insulation projects.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Accuduct Manufacturing, INCaccuduct.com HQ: Algona, WA, United StatesReported employees: 51-200 | Algona, WA, United States | 51-200 | Exact match | 19 contacts → |
“AccuDuct Manufacturing began providing products to the HVAC industry in 1987.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Seal-Tite, LLCsealtitehvac.com HQ: Hillsboro, OH, United StatesReported employees: 51-200 | Hillsboro, OH, United States | 51-200 | Exact match | 19 contacts → |
“Seal-Tite® is America's preferred manufacturer of air distribution systems.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Great Pacific Elbowgreatpacificelbow.com HQ: Chino, CA, United StatesReported employees: 51-200 | Chino, CA, United States | 51-200 | Exact match | 15 contacts → |
“Great Pacific Elbow is a manufacturer of HVAC sheet metal ductwork, fittings, and accessories.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Plenums Plusplenumsplus.com HQ: Chula Vista, United StatesReported employees: 51-200 | Chula Vista, United States | 51-200 | Exact match | 15 contacts → |
“Plenums Plus is a Southern California manufacturer that specializes in fabricating rectangular, round, and flat oval duct & fittings in a variety of materials.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Phoenix Metals CMP Metalswemakeduct.com HQ: Baltimore, MD, United StatesReported employees: 51-200 | Baltimore, MD, United States | 51-200 | Exact match | 14 contacts → |
“Inside the Phoenix Metals sq ft facility, we manufacture HVAC duct, fittings and custom components at commercial scale with machinery investments driven by skilled CAD/CAM…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | SRS Fiberglass Productssrsfiberglass.com HQ: Muskegon, MI, United StatesReported employees: 51-200 | Muskegon, MI, United States | 51-200 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | Lambro Industries, INClambro.net HQ: Amityville, NY, United StatesReported employees: 51-200 | Amityville, NY, United States | 51-200 | Exact match | 10 contacts → |
“Established in 1967, LAMBRO focuses on providing ventilation solutions for HVAC air distribution in both residential and commercial markets.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Spunstrand INCspunstrand.com HQ: Post Falls, ID, United StatesReported employees: 11-50 | Post Falls, ID, United States | 11-50 | Exact match | 10 contacts → |
“Since 1959 Spunstrand® Inc.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Clward, INCclward.com HQ: Canonsburg, PA, United StatesReported employees: 51-200 | Canonsburg, PA, United States | 51-200 | Exact match | 8 contacts → |
“CLWARD is manufacturer of HVAC sheet metal accessory products used in the commercial and light industrial markets.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 88 company matches
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Fiberglass duct board manufacturers: dataset insights
October 12, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
88 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 88 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 12, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for fiberglass duct board manufacturers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many fiberglass duct board manufacturers did RevenueBase find based in the United States?
The saved snapshot records 88 matching company records, 2,841 tracked contacts and 640 verified emails. The public preview displays 24 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 12, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 24 fiberglass duct board manufacturers based in the United States. Snapshot: October 12, 2026. https://revenuebase.ai/companies/fiberglass-duct-board-manufacturers/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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