Company lists · Data refreshed September 2026
Top 25 Rooftop make-up air unit manufacturers based in the United States
RevenueBase identified 61 rooftop make-up air unit manufacturers headquartered in the United States as of September 2026 and tracks 5,619 professional contacts across them, including 2,313 with verified work emails. Minneapolis is the largest hub.
This list covers rooftop make-up air unit 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.
The 25 largest rooftop make-up air unit manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 975 contacts → | ||||
Partial evidence “Greenheck is the global leader in engineering and manufacturing air movement, conditioning, and control equipment for nonresidential buildings.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 891 contacts → | ||||
Partial evidence “CaptiveAire® is the nation's leading manufacturer of commercial kitchen ventilation systems, and now provides a complete solution of fans, heaters, ductwork, and HVAC equipment.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 787 contacts → | ||||
Partial evidence “As the foremost provider of fresh air solutions in North America, Broan-NuTone® firmly believes that better quality of air means a better quality of life.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 783 contacts → | ||||
Strong evidence “Greenheck Group is made up of team members who serve as leaders in air movement, control, and conditioning equipment, providing solutions across a range of applications and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 260 contacts → | ||||
Strong evidence “Ruskin is a leading manufacturer of air-control solutions.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 187 contacts → | ||||
Strong evidence “Since 1946 Revcor has been a staple company in the design and manufacture of revolutionary airflow solutions that efficiently, quietly and reliably deliver the air that improves…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 180 contacts → | ||||
Indirect evidence “MicroMetl is a leader in manufacturing commercial HVAC accessories with over a half century of information and expertise.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 127 contacts → | ||||
Partial evidence “Addison is a leading supplier of HVAC cooling and dehumidification equipment for commercial and industrial applications with extensive experience in treating ventilation air.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 91 contacts → | ||||
Partial evidence “For over 40 years, RenewAire has been manufacturing energy recovery ventilators (ERVs) and dedicated outdoor air systems (DOAS).” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 86 contacts → | ||||
Strong evidence “ClimateCraft® manufactures custom air handling units (AHUs) for Commercial, Education, Government, Healthcare, High Tech Manufacturing and Life Sciences environments.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 78 contacts → | ||||
Strong evidence “Air Enterprises designs, engineers and manufactures custom air handling solutions to meet any system configuration or space requirement.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 73 contacts → | ||||
Strong evidence “Manufacturers of Air Handling Equipment for the industrial, heavy commercial, and mission critical HVAC Industry: Computer Room Air Handlers, Multi-Mode Evaporative Cooling for…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 71 contacts → | ||||
Indirect evidence “Accurex specializes in energy-efficient ventilation systems-for restaurants and other food service establishments.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 71 contacts → | ||||
Partial evidence “Innovent Air Handling Equipment has provided building ventilation solutions for over 30 years.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 53 contacts → | ||||
Indirect evidence “Helping buildings breathe better.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 52 contacts → | ||||
Indirect evidence “Gaylord Industries, a leader in kitchen ventilation for over 75 years, is known for its durable systems and innovative approach, focusing on energy efficiency and labor…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 32 contacts → | ||||
Partial evidence “Delivering affordable fresh air.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 28 contacts → | ||||
Partial evidence “HVAC | Solar HVAC | Energy recovery ventilators (ERV)| Dedicated Outdoors Air Systems (DOAS)| Ionization | Indoor air quality solutions | IBJ Fast 25 | Inc iAIRE, LLC was founded…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 27 contacts → | ||||
Indirect evidence “Novelaire Technologies, LLC is a company based out of 10132 Mammoth Avenue, Baton Rouge, Louisiana, United States.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 25 contacts → | ||||
Strong evidence “Air King America, LLC a 12-time ENERGY STAR® Partner of the Year award recipient is a US-based manufacturer dedicated to producing high quality, energy efficient and affordable…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 23 contacts → | ||||
Indirect evidence “Since 1928, PennBarry has evolved with the industry to provide full service ventilation products to commercial and light industrial customers worldwide.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 21 contacts → | ||||
Partial evidence “Continental Fan was established in 1986 to manufacture and distribute quality ventilation equipment in the OEM, Industrial, Commercial, and Residential fan industries.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 13 contacts → | ||||
Strong evidence “Valent Air Management Systems is a trusted manufacturer of rooftop, dedicated outdoor air, and energy recovery solutions designed to control temperature and humidity in commercial…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 12 contacts → | ||||
Indirect evidence “Baikal Mechanical is a New York–based HVAC OEM founded in 2015, focusing on retrofit-ready, modular HVAC systems for healthcare, education, and critical commercial environments.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 12 contacts → | ||||
Partial evidence “Vents-US is a global leader in ventilation technology and one of the world’s largest manufacturers of ventilation equipment.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
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: rooftop make-up air unit 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 rooftop make-up air unit manufacturers.
- Partial evidence
- Its own public description names part of rooftop make-up air unit manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name rooftop make-up air unit 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 61 rooftop make-up air unit manufacturers based in the United States
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Rooftop make-up air unit manufacturers based in the United States at a glance
As of Sep 30, 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 61 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 rooftop make-up air unit 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 “rooftop make-up air unit 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 rooftop make-up air unit 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 rooftop make-up air unit 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, 2,313 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 rooftop make-up air unit 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 rooftop make-up air unit manufacturers are there based in the United States?
RevenueBase identified 61 rooftop make-up air unit 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?
Greenheck, headquartered in Schofield, tops this list with the largest team on record.
Which city has the most rooftop make-up air unit manufacturers?
Minneapolis leads with 4 headquartered companies, followed by Raleigh (4) and Tempe (4).
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 2,313 verified decision-maker contacts tracked across these 61 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.
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