Company lists · Data refreshed October 2026

Top 24 Duct fittings manufacturers based in the United States

RevenueBase identified 147 company matches for duct fittings manufacturers associated with the United States as of October 2026 and tracks 2,963 professional contacts across them, including 773 with verified work emails. Houston is the largest hub.

This list covers company matches for duct fittings 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 11, 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 Oct 11, 2026 How this list was built
147Companies
2,963Contacts tracked
773Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 24 largest duct fittings manufacturers based in the United States

Ranked by team size
Top 24 of 147 company matches for duct fittings manufacturers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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 matchFort Worth, TX, United StatesHQ recorded Oct 11, 2026501-1,000255 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 11, 2026 · View company records in RevenueBase
2Exact matchPhiladelphia, PA, United StatesHQ recorded Oct 11, 20261,001-5,000240 contacts →

Exact match

“Southwark Metal Mfg.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
3Exact matchElkhart, IN, United StatesHQ recorded Oct 11, 2026501-1,000166 contacts →

Exact match

“A Proud History, An Exciting Future.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
4Exact matchAtlanta, GA, United StatesHQ recorded Oct 11, 2026201-500162 contacts →

Exact match

“Conklin Metal Industries is a distributor of all types of sheet metal, and HVAC & Duct Fabrication supplies.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5Exact matchFort Worth, TX, United StatesHQ recorded Oct 11, 20261,001-5,000106 contacts →

Exact match

“ATCO Rubber Products is the worldwide leader in flex duct systems.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6Exact matchBay Shore, NY, United StatesHQ recorded Oct 11, 202651-20095 contacts →

Exact match

“Availability in: Manufacturing of Flexible Duct Connectors OEM machinery for weld pins Air Regulation and Control Equipment for HVAC systems and Duct Work Dynatite Cable Locks…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
7Exact matchConneaut, OH, United StatesHQ recorded Oct 11, 2026201-50094 contacts →

Exact match

“Lukjan Metal Products has been manufacturing high quality sheet metal pipe, duct and fittings to the Wholesale HVAC industry since 1964.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
8Exact matchBuena Park, CA, United StatesHQ recorded Oct 11, 202651-20069 contacts →

Exact match

“OmniDuct is a manufacturer of sheet metal ductwork for the HVAC industry.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
9Exact matchArchdale, NC, United StatesHQ recorded Oct 11, 202651-20068 contacts →

Exact match

“US Duct makes buying industrial ductwork simple.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10Exact matchArlington Heights, IL, United StatesHQ recorded Oct 11, 202651-20067 contacts →

Exact match

“Ever since opening back in 1987, Sheet Metal Werks gives your business the instant advantage of more than two decades of HVAC duct and fitting fabrication experience.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11Exact matchManchester Township, PA, United StatesHQ recorded Oct 11, 202651-20048 contacts →

Exact match

“MKT Metal Manufacturing has been delivering precision-fabricated HVAC ductwork since 2004.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
12Exact matchCedar Rapids, IA, United StatesHQ recorded Oct 11, 202651-20042 contacts →

Exact match

“Mestek Machinery is the industry-leading designer and manufacturer of the most complete, productive, and innovative metal forming solutions for the fabrication of HVAC sheet metal…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13Exact matchMount Vernon, OH, United StatesHQ recorded Oct 11, 202651-20041 contacts →

Exact match

“Heating & Cooling Products manufactures and distributes superior quality sheet metal products to over 25 states and Canada.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14Exact matchFresno, CA, United StatesHQ recorded Oct 11, 2026501-1,00034 contacts →

Exact match

“Since 1961, J.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15Exact matchUniontown, PA, United StatesHQ recorded Oct 11, 202651-20033 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16Exact matchAvon, NY, United StatesHQ recorded Oct 11, 202651-20033 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17Exact matchWarren, MI, United StatesHQ recorded Oct 11, 202651-20031 contacts →

Exact match

“Conquest markets Flamebar fire-rated HVAC and A2L systems and solutions to architects, engineers, and contractors.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18Exact matchFort Worth, TX, United StatesHQ recorded Oct 11, 202651-20031 contacts →

Exact match

“SPIRAL ROUND/FLAT OVAL, RECTANGULAR & SPECIALTY DUCT FABRICATOR Since 1981, Spiral Pipe of Texas (SPOT) has been a proven source for Custom Sheet Metal Fabrication.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19Exact matchSterling, VA, United StatesHQ recorded Oct 11, 202651-20026 contacts →

Exact match

“RAM Fabrication manufactures ductwork and fittings for wholesale HVAC suppliers and Heating and Air Contractors as well as fabricated roofing products.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20Exact matchJacksonville, FL, United StatesHQ recorded Oct 11, 202651-20026 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 11, 2026 · View company records in RevenueBase
21Exact matchMinneapolis, MN, United StatesHQ recorded Oct 11, 202651-20025 contacts →

Exact match

“Founded in 1969, Sheet Metal Connectors, Inc.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22Exact matchWalker, MI, United StatesHQ recorded Oct 11, 202611-5022 contacts →

Exact match

“Universal Spiral Air (USA) is a sheet metal manufacturer that specializes in commercial and industrial ductwork within the HVAC industry.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23Exact matchGoffstown, NH, United StatesHQ recorded Oct 11, 202651-20021 contacts →

Exact match

“Northeastern Sheet Metal is New Englands premier manufacturer of Sheet Metal products and Accessories.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24Exact matchAlgona, WA, United StatesHQ recorded Oct 11, 202651-20019 contacts →

Exact match

“AccuDuct Manufacturing began providing products to the HVAC industry in 1987.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase

Showing 24 of 147 duct fittings manufacturers based in the United States

See the full list, filter by size, metro and specialty, and access 773 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Duct fittings manufacturers based in the United States at a glance

As of Oct 11, 2026
26.1%Verified-email coverage
20.2Average contacts per company
11-50Median size (employees)
3.4%Largest-city concentration · Houston
Oct 11, 2026Page data refreshed

Companies by employee count

1-10
35
11-50
47
51-200
53
201-500
5
501-1,000
3
1,001-5,000
3
10001+
1

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 147 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 “duct fittings 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 773 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 11, 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 “duct fittings manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many duct fittings manufacturers are there based in the United States?

RevenueBase identified 147 company matches for duct fittings 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?

M&m Manufacturing Company tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most duct fittings manufacturers?

Houston leads with 5 company records, followed by Fort Worth (4) and Charleroi (3).

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 773 professional contacts with verified work emails tracked across these 147 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 11, 2026.

Ready to reach these companies? Verified emails and direct dials for all 147 duct fittings manufacturers 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.