Company lists · Data refreshed November 2026

Top 25 Ductwork testing and balancing companies worldwide

RevenueBase identified 468 company matches for ductwork testing and balancing companies worldwide as of November 2026 and tracks 2,950 professional contacts across them, including 848 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for ductwork testing and balancing companies worldwide, 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. Country and city lists for ductwork testing and balancing companies follow the table.

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
468Companies
2,950Contacts tracked
848Verified emails
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The 25 largest ductwork testing and balancing companies worldwide

Ranked by team size
Top 25 of 468 company matches for ductwork testing and balancing companies worldwide, 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 matchRichardson, TX, United StatesHQ recorded Nov 6, 202651-200135 contacts →

Exact match

“Engineered Air Balance is the leading authority in total system balancing, building commissioning, and critical environment certifications at the forefront of industry standards…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchGreenville, SC, United StatesHQ recorded Nov 6, 2026201-500125 contacts →

Exact match

“Palmetto Air & Water Balance is committed to providing the highest quality of independent testing, adjusting and balancing services available to its client base of general and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchCairo, EgyptHQ recorded Nov 6, 202651-20059 contacts →

Exact match

“EBC-International Elite Building Commissiong, W.L.L.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202611-5052 contacts →

Exact match

“Experts in Testing, Adjusting and Balancing of Air and Hydronic Systems TAB Technologies is NEBB certified in air and hydronic balancing as well as HVAC and Plumbing Commissioning.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSeattle, WA, United StatesHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“Neudorfer Engineers is an integrated, multi-disciplinary firm with experts in a variety of project types.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBeaverton, OR, United StatesHQ recorded Nov 6, 202611-5044 contacts →

Exact match

“Since 1958, our team has worked with building/system owners, architects, engineers and contractors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchKuwaitHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“Testing, Adjusting & Balancing of HVAC System info@mtcpco.com tab@mtcpco.com A multi-disciplinary Kuwaiti firm, was found on 1998.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchEverson, WA, United StatesHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“Retrotec is the world's leading manufacturer of blower door and door fan test equipment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchEl Dorado Hills, CA, United StatesHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“RSAnalysis, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchAuburn, CO, United StatesHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“We offer national solutions for commercial buildings with certified HVAC Testing & Balancing, Fume Hood, and Clean Room testing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“Gardner & Co leads the way with the very latest technology, whilst still upholding the finest traditions in the management and installation of sheet metal ductwork, specialising…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchCincinnati, OH, United StatesHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“National TAB Intelligence delivers certified HVAC testing, adjusting and balancing services nationwide, ensuring precise environmental conditioning and operational health for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAtlanta, SC, United StatesHQ recorded Nov 6, 202651-20033 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBarueri, BrazilHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“LWN Engenharia é especialista em Certificações, Qualificações e TAB (Teste, Ajuste e Balanceamento) para sistemas HVAC-r.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLiverpool, United KingdomHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“Ventilation Surveys and Services Ltd provide nationwide coverage for the following services: Ventilation Cleaning and Maintenance Air Conditioning Installation & Maintenance Fire…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“KAD Air Conditioning LLC is one of the most prominent manufacturers of Ducting in the UAE.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchWaalwijk, NetherlandsHQ recorded Nov 6, 202651-20029 contacts →

Exact match

“Onze organisatie is gespecialiseerd in het ontwerpen, produceren en installeren van kwalitatief hoogwaardige en duurzame luchtbehandelingssystemen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchAuburn, NH, United StatesHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“Air Solutions & Balancing, LLC is one of the largest certified Testing, Adjusting and Balancing (TAB) firms in the United States offering two business solutions: Airadigm…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchToccoa, GA, United StatesHQ recorded Nov 6, 202651-20027 contacts →

Exact match

“Addison Energy Technologies, LLC (AET) is an independent, woman-owned, AABC (14-05-91) and NEBB certified (3550) Air and Water Test and Balance (TAB), Building System and Retro…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchKidderminster, United KingdomHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“DUCTBUSTERS LIMITED is an environmental services company based out of Halesowen, West Midlands, United Kingdom.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchPleasanton, CA, United StatesHQ recorded Nov 6, 202651-20024 contacts →

Exact match

“Established in 1968, National Air Balance Company, is composed of a select group of proven professionals dedicated to the highest standards in the field of independent test and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchKildare, IrelandHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“Flowtech Engineering is a privately owned company that is able to assist with all HVAC requirements.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchRiyadh, Saudi ArabiaHQ recorded Nov 6, 202651-20022 contacts →

Exact match

“TABCOMM is an independent commissioning authority, verifying that MEP systems perform exactly as designed before handover.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBirmingham, AL, United StatesHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Systems Analysis, Inc (SAI) is an international and domestic test and balance engineering agency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchMckinney, TX, United StatesHQ recorded Nov 6, 20261-1017 contacts →

Exact match

Recorded description not available.

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

Showing 25 of 468 ductwork testing and balancing companies worldwide

See the full list, filter by size, metro and specialty, and access 848 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ductwork testing and balancing companies worldwide at a glance

As of Nov 6, 2026
28.7%Verified-email coverage
6.3Average contacts per company
1-10Median size (employees)
1.7%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
237
11-50
173
51-200
49
201-500
4

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for ductwork testing and balancing companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “ductwork testing and balancing companies” 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. 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 848 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.

Ductwork testing and balancing companies by location

3 lists · largest first

Every Ductwork testing and balancing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “ductwork testing and balancing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ductwork testing and balancing companies are there worldwide?

RevenueBase identified 468 company matches for ductwork testing and balancing companies worldwide 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?

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

Which country has the most ductwork testing and balancing companies?

The United States leads with 184 companies, followed by the United Kingdom (49) and Canada (42). Every ductwork testing and balancing companies list by country and city is linked on this page.

Which city has the most ductwork testing and balancing companies?

London leads with 8 company records, followed by Houston (6) and Riyadh (5).

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 848 professional contacts with verified work emails tracked across these 468 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.

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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.