Company lists · Data refreshed September 2026
Top 25 Air permit consultants worldwide
RevenueBase identified 478 company matches for air permit consultants worldwide as of September 2026 and tracks 3,161 professional contacts across them, including 1,219 with verified work emails. The United States is the largest market and Houston the largest hub.
This list covers company matches for air permit consultants 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 September 21, 2026. Country and city lists for air permit consultants 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.
The 25 largest air permit consultants worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 152 contacts → | ||||
Exact match “Since its founding in 1972, CleanAir has an established reputation for excellence on projects of all sizes, ranging from boiler, APC equipment and cooling tower efficiency testing…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 92 contacts → | ||||
Exact match “Yorke Engineering, LLC (Yorke) was founded in 1996 and specializes in air quality, waste, storm water and industrial hygiene/safety services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 70 contacts → | ||||
Exact match “We deliver quality solutions with integrity and expertise, every time.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 68 contacts → | ||||
Exact match “AIR HYGIENE is known for providing professional services which include the following:* Providing superior, cost saving services to our clients!* High quality emission testing…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 63 contacts → | ||||
Exact match “As a leader in the environmental compliance services industry, AARC does more than just meeting the needs of clients today.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 63 contacts → | ||||
Exact match “Sage ATC Environmental Consulting is now Atlas.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 51 contacts → | ||||
Exact match “Our objective is to offer services that are not only regulatory compliant but also appropriate and cost-effective.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 47 contacts → | ||||
Exact match “Established in 1993, Air Quality Consultants has a strong and proven track record in providing independent air quality services to private and public sector clients, both within…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 41 contacts → | ||||
Exact match “Established in 1986, ACC Environmental Consultants, Inc.(ACC) is an employee-owned full service environmental consulting and design firm recognized for its excellent and reliable…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 40 contacts → | ||||
Exact match “Air Quality and Environmental Consulting Bison Engineering, Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 39 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 37 contacts → | ||||
Exact match “AirQuest Environmental, Inc.("AirQuest") solves environmental, health, and safety problems, improving the air quality, health of your workforce, and the value of your buildings.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 36 contacts → | ||||
Exact match “The WCM Group is a team of environmental consultants, engineers and experienced professionals dedicated to helping businesses navigate the environmental regulatory landscape.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 35 contacts → | ||||
Exact match “Catalyst Environmental Solutions Corporation is a full service environmental consulting firm, specializing in the energy sector, land development and remediation, and water…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 34 contacts → | ||||
Exact match “Advantage Environmental Consultants, LLC (AEC) is a nationwide environmental consulting firm with six regional offices located in the following areas: Metro Washington, D.C…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 34 contacts → | ||||
Exact match “Air Resource Specialists, Inc.(ARS) is a nationally recognized leader in air quality-related environmental monitoring, modeling, compliance, auditing, analysis, and research.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 32 contacts → | ||||
Exact match “PEC Ltd was founded at the start of 2021 with the aim of providing a modern approach to environmental consulting.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 31 contacts → | ||||
Exact match “Since 2004, Liberty Environmental has been providing regional and national clients with services in air quality consulting and pollution control system design, environmental…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 30 contacts → | ||||
Exact match “H2E seeks to provide high quality environmental engineering and consulting services in the most efficient manner possible.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 30 contacts → | ||||
Exact match “BAIR IS NOW OFFERING LDAR SERVICES!” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 30 contacts → | ||||
Exact match “Founded in 2007 and located in Robinson PA, SE Technologies LLC provides a variety of environmental compliance and health & safety services including: Environmental • air…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 29 contacts → | ||||
Exact match “Founded in 2002, HRL Compliance Solutions, Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 27 contacts → | ||||
Exact match “BCA Environmental Consultants helps industrial and commercial facilities stay compliant with federal, state, and local environmental regulations.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 25 contacts → | ||||
Exact match “We provide air quality and engineering services to a wide range of industries, government departments, and consulting firms in Southern Africa.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 25 contacts → | ||||
Exact match “Northstar Environmental Group has been providing effective and reliable solutions to industrial environmental problems since 1991.” Recorded in the RevenueBase company graph · Sep 21, 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 “air permit consultants”. 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 25 of 478 air permit consultants worldwide
See the full list, filter by size, metro and specialty, and access 1,219 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Air permit consultants worldwide at a glance
As of Sep 21, 2026Companies by employee count
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 air permit consultants are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “air permit consultants” 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 1,219 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 September 21, 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.
Air permit consultants by location
1 lists · largest firstEvery Air permit consultants 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 “air permit consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many air permit consultants are there worldwide?
RevenueBase identified 478 company matches for air permit consultants worldwide as of September 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?
Cleanair Engineering tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most air permit consultants?
The United States leads with 186 companies. Every air permit consultants list by country and city is linked on this page.
Which city has the most air permit consultants?
Houston leads with 8 company records, followed by Calgary (6) and Austin (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 1,219 professional contacts with verified work emails tracked across these 478 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 September 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 478 air permit consultants worldwide. 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.
More company lists
Company intelligence · public preview
Top 25 air permit consultants worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 478 matching company records for air permit consultants worldwide, with 3,161 tracked contacts and 1,219 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 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 25 air permit consultants worldwide
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 |  Cleanair Engineeringcleanair.comHQ: Palatine, IL, United StatesReported employees: 51-200 | Palatine, IL, United States | 51-200 | Exact match | 152 contacts → |
“Since its founding in 1972, CleanAir has an established reputation for excellence on projects of all sizes, ranging from boiler, APC equipment and cooling tower efficiency testing…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Yorke Engineering, LLCyorkeengr.comHQ: San Juan Capistrano, CA, United StatesReported employees: 51-200 | San Juan Capistrano, CA, United States | 51-200 | Exact match | 92 contacts → |
“Yorke Engineering, LLC (Yorke) was founded in 1996 and specializes in air quality, waste, storm water and industrial hygiene/safety services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Cgrs INCcgrs.comHQ: Fort Collins, CO, United StatesReported employees: 51-200 | Fort Collins, CO, United States | 51-200 | Exact match | 70 contacts → |
“We deliver quality solutions with integrity and expertise, every time.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  AIR Hygiene International, INCairhygiene.comHQ: Tulsa, United StatesReported employees: 11-50 | Tulsa, United States | 11-50 | Exact match | 68 contacts → |
“AIR HYGIENE is known for providing professional services which include the following:* Providing superior, cost saving services to our clients!* High quality emission testing…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Aarc Environmentalaarcenv.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 63 contacts → |
“As a leader in the environmental compliance services industry, AARC does more than just meeting the needs of clients today.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Sage ATC Environmental Consultingoneatlas.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 63 contacts → |
“Sage ATC Environmental Consulting is now Atlas.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: Kanpur, IndiaReported employees: 11-50 | Kanpur, India | 11-50 | Exact match | 51 contacts → |
“Our objective is to offer services that are not only regulatory compliant but also appropriate and cost-effective.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  AIR Quality Consultants LTD Part Of Logika Groupaqconsultants.co.ukHQ: Bristol, United KingdomReported employees: 51-200 | Bristol, United Kingdom | 51-200 | Exact match | 47 contacts → |
“Established in 1993, Air Quality Consultants has a strong and proven track record in providing independent air quality services to private and public sector clients, both within…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  ACC Environmental Consultantsaccenv.comHQ: Oakland, CA, United StatesReported employees: 51-200 | Oakland, CA, United States | 51-200 | Exact match | 41 contacts → |
“Established in 1986, ACC Environmental Consultants, Inc.(ACC) is an employee-owned full service environmental consulting and design firm recognized for its excellent and reliable…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Bison Engineering, INCbison-eng.comHQ: Helena, MT, United StatesReported employees: 11-50 | Helena, MT, United States | 11-50 | Exact match | 40 contacts → |
“Air Quality and Environmental Consulting Bison Engineering, Inc.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Sapphos Environmental, INCsapphosenvironmental.comHQ: Pasadena, CA, United StatesReported employees: 11-50 | Pasadena, CA, United States | 11-50 | Exact match | 39 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 |  Airquest Environmental, INCairquestinc.comHQ: Fort Lauderdale, FL, United StatesReported employees: 11-50 | Fort Lauderdale, FL, United States | 11-50 | Exact match | 37 contacts → |
“AirQuest Environmental, Inc.("AirQuest") solves environmental, health, and safety problems, improving the air quality, health of your workforce, and the value of your buildings.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | The WCM Group, INCwcmgroup.com HQ: Humble, TX, United StatesReported employees: 11-50 | Humble, TX, United States | 11-50 | Exact match | 36 contacts → |
“The WCM Group is a team of environmental consultants, engineers and experienced professionals dedicated to helping businesses navigate the environmental regulatory landscape.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Catalyst Environmental Solutions Corporationce.solutions HQ: Santa Monica, CA, United StatesReported employees: 11-50 | Santa Monica, CA, United States | 11-50 | Exact match | 35 contacts → |
“Catalyst Environmental Solutions Corporation is a full service environmental consulting firm, specializing in the energy sector, land development and remediation, and water…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Advantage Environmental Consultants, LLCaec-env.comHQ: Jessup, MD, United StatesReported employees: 11-50 | Jessup, MD, United States | 11-50 | Exact match | 34 contacts → |
“Advantage Environmental Consultants, LLC (AEC) is a nationwide environmental consulting firm with six regional offices located in the following areas: Metro Washington, D.C…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  AIR Resource Specialistsair-resource.comHQ: Fort Collins, CO, United StatesReported employees: 11-50 | Fort Collins, CO, United States | 11-50 | Exact match | 34 contacts → |
“Air Resource Specialists, Inc.(ARS) is a nationally recognized leader in air quality-related environmental monitoring, modeling, compliance, auditing, analysis, and research.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  PEC LTDpecltd.orgHQ: Lowton, United KingdomReported employees: Not recorded | Lowton, United Kingdom | Not recorded | Exact match | 32 contacts → |
“PEC Ltd was founded at the start of 2021 with the aim of providing a modern approach to environmental consulting.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Liberty Environmentallibertyenviro.comHQ: Reading, PA, United StatesReported employees: 11-50 | Reading, PA, United States | 11-50 | Exact match | 31 contacts → |
“Since 2004, Liberty Environmental has been providing regional and national clients with services in air quality consulting and pollution control system design, environmental…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  H2e, Incorporatedh2eincorporated.comHQ: Spearfish, SD, United StatesReported employees: 51-200 | Spearfish, SD, United States | 51-200 | Exact match | 30 contacts → |
“H2E seeks to provide high quality environmental engineering and consulting services in the most efficient manner possible.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  BAIRthebair.comHQ: Carrollton, TX, United StatesReported employees: 11-50 | Carrollton, TX, United States | 11-50 | Exact match | 30 contacts → |
“BAIR IS NOW OFFERING LDAR SERVICES!” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | SE Technologies, LLCse-env.com HQ: Pittsburgh, United StatesReported employees: 11-50 | Pittsburgh, United States | 11-50 | Exact match | 30 contacts → |
“Founded in 2007 and located in Robinson PA, SE Technologies LLC provides a variety of environmental compliance and health & safety services including: Environmental • air…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HRL Compliance Solutions, INChrlcomp.com HQ: Grand Junction, CO, United StatesReported employees: 11-50 | Grand Junction, CO, United States | 11-50 | Exact match | 29 contacts → |
“Founded in 2002, HRL Compliance Solutions, Inc.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  BCA Environmental Consultants, LLCbcaconsultants.comHQ: Goshen, IN, United StatesReported employees: 11-50 | Goshen, IN, United States | 11-50 | Exact match | 27 contacts → |
“BCA Environmental Consultants helps industrial and commercial facilities stay compliant with federal, state, and local environmental regulations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Rayten Engineering Solutions PTY LTDrayten.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 25 contacts → |
“We provide air quality and engineering services to a wide range of industries, government departments, and consulting firms in Southern Africa.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Northstar Environmental Group INCnorthstarenv.com HQ: Gallatin, TN, United StatesReported employees: 11-50 | Gallatin, TN, United States | 11-50 | Exact match | 25 contacts → |
“Northstar Environmental Group has been providing effective and reliable solutions to industrial environmental problems since 1991.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 478 company matches
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Air permit consultants: dataset insights
September 21, 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
477 records in the displayed employee bands.
1 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 478 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: September 21, 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 ↗
Air permit consultants by location
1 lists · largest firstEvery Air permit consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for air permit consultants?
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 air permit consultants did RevenueBase find worldwide?
The saved snapshot records 478 matching company records, 3,161 tracked contacts and 1,219 verified emails. The public preview displays 25 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: September 21, 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
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Cite this list
RevenueBase Data Team. Top 25 air permit consultants worldwide. Snapshot: September 21, 2026. https://revenuebase.ai/companies/browse/air-permit-consultants.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 air permit consultants worldwide
RevenueBase records 478 matching company records for air permit consultants worldwide, with 3,161 tracked contacts and 1,219 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 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 25 air permit consultants worldwide
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 | Cleanair Engineeringcleanair.com HQ: Palatine, IL, United StatesReported employees: 51-200 | Palatine, IL, United States | 51-200 | Exact match | 152 contacts → |
“Since its founding in 1972, CleanAir has an established reputation for excellence on projects of all sizes, ranging from boiler, APC equipment and cooling tower efficiency testing…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Yorke Engineering, LLCyorkeengr.com HQ: San Juan Capistrano, CA, United StatesReported employees: 51-200 | San Juan Capistrano, CA, United States | 51-200 | Exact match | 92 contacts → |
“Yorke Engineering, LLC (Yorke) was founded in 1996 and specializes in air quality, waste, storm water and industrial hygiene/safety services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Cgrs INCcgrs.com HQ: Fort Collins, CO, United StatesReported employees: 51-200 | Fort Collins, CO, United States | 51-200 | Exact match | 70 contacts → |
“We deliver quality solutions with integrity and expertise, every time.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | AIR Hygiene International, INCairhygiene.com HQ: Tulsa, United StatesReported employees: 11-50 | Tulsa, United States | 11-50 | Exact match | 68 contacts → |
“AIR HYGIENE is known for providing professional services which include the following:* Providing superior, cost saving services to our clients!* High quality emission testing…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Aarc Environmentalaarcenv.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 63 contacts → |
“As a leader in the environmental compliance services industry, AARC does more than just meeting the needs of clients today.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Sage ATC Environmental Consultingoneatlas.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 63 contacts → |
“Sage ATC Environmental Consulting is now Atlas.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: Kanpur, IndiaReported employees: 11-50 | Kanpur, India | 11-50 | Exact match | 51 contacts → |
“Our objective is to offer services that are not only regulatory compliant but also appropriate and cost-effective.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | AIR Quality Consultants LTD Part Of Logika Groupaqconsultants.co.uk HQ: Bristol, United KingdomReported employees: 51-200 | Bristol, United Kingdom | 51-200 | Exact match | 47 contacts → |
“Established in 1993, Air Quality Consultants has a strong and proven track record in providing independent air quality services to private and public sector clients, both within…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | ACC Environmental Consultantsaccenv.com HQ: Oakland, CA, United StatesReported employees: 51-200 | Oakland, CA, United States | 51-200 | Exact match | 41 contacts → |
“Established in 1986, ACC Environmental Consultants, Inc.(ACC) is an employee-owned full service environmental consulting and design firm recognized for its excellent and reliable…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Bison Engineering, INCbison-eng.com HQ: Helena, MT, United StatesReported employees: 11-50 | Helena, MT, United States | 11-50 | Exact match | 40 contacts → |
“Air Quality and Environmental Consulting Bison Engineering, Inc.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Sapphos Environmental, INCsapphosenvironmental.com HQ: Pasadena, CA, United StatesReported employees: 11-50 | Pasadena, CA, United States | 11-50 | Exact match | 39 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 | Airquest Environmental, INCairquestinc.com HQ: Fort Lauderdale, FL, United StatesReported employees: 11-50 | Fort Lauderdale, FL, United States | 11-50 | Exact match | 37 contacts → |
“AirQuest Environmental, Inc.("AirQuest") solves environmental, health, and safety problems, improving the air quality, health of your workforce, and the value of your buildings.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | The WCM Group, INCwcmgroup.com HQ: Humble, TX, United StatesReported employees: 11-50 | Humble, TX, United States | 11-50 | Exact match | 36 contacts → |
“The WCM Group is a team of environmental consultants, engineers and experienced professionals dedicated to helping businesses navigate the environmental regulatory landscape.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Catalyst Environmental Solutions Corporationce.solutions HQ: Santa Monica, CA, United StatesReported employees: 11-50 | Santa Monica, CA, United States | 11-50 | Exact match | 35 contacts → |
“Catalyst Environmental Solutions Corporation is a full service environmental consulting firm, specializing in the energy sector, land development and remediation, and water…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Advantage Environmental Consultants, LLCaec-env.com HQ: Jessup, MD, United StatesReported employees: 11-50 | Jessup, MD, United States | 11-50 | Exact match | 34 contacts → |
“Advantage Environmental Consultants, LLC (AEC) is a nationwide environmental consulting firm with six regional offices located in the following areas: Metro Washington, D.C…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | AIR Resource Specialistsair-resource.com HQ: Fort Collins, CO, United StatesReported employees: 11-50 | Fort Collins, CO, United States | 11-50 | Exact match | 34 contacts → |
“Air Resource Specialists, Inc.(ARS) is a nationally recognized leader in air quality-related environmental monitoring, modeling, compliance, auditing, analysis, and research.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | PEC LTDpecltd.org HQ: Lowton, United KingdomReported employees: Not recorded | Lowton, United Kingdom | Not recorded | Exact match | 32 contacts → |
“PEC Ltd was founded at the start of 2021 with the aim of providing a modern approach to environmental consulting.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Liberty Environmentallibertyenviro.com HQ: Reading, PA, United StatesReported employees: 11-50 | Reading, PA, United States | 11-50 | Exact match | 31 contacts → |
“Since 2004, Liberty Environmental has been providing regional and national clients with services in air quality consulting and pollution control system design, environmental…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | H2e, Incorporatedh2eincorporated.com HQ: Spearfish, SD, United StatesReported employees: 51-200 | Spearfish, SD, United States | 51-200 | Exact match | 30 contacts → |
“H2E seeks to provide high quality environmental engineering and consulting services in the most efficient manner possible.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | BAIRthebair.com HQ: Carrollton, TX, United StatesReported employees: 11-50 | Carrollton, TX, United States | 11-50 | Exact match | 30 contacts → |
“BAIR IS NOW OFFERING LDAR SERVICES!” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | SE Technologies, LLCse-env.com HQ: Pittsburgh, United StatesReported employees: 11-50 | Pittsburgh, United States | 11-50 | Exact match | 30 contacts → |
“Founded in 2007 and located in Robinson PA, SE Technologies LLC provides a variety of environmental compliance and health & safety services including: Environmental • air…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HRL Compliance Solutions, INChrlcomp.com HQ: Grand Junction, CO, United StatesReported employees: 11-50 | Grand Junction, CO, United States | 11-50 | Exact match | 29 contacts → |
“Founded in 2002, HRL Compliance Solutions, Inc.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | BCA Environmental Consultants, LLCbcaconsultants.com HQ: Goshen, IN, United StatesReported employees: 11-50 | Goshen, IN, United States | 11-50 | Exact match | 27 contacts → |
“BCA Environmental Consultants helps industrial and commercial facilities stay compliant with federal, state, and local environmental regulations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Rayten Engineering Solutions PTY LTDrayten.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 25 contacts → |
“We provide air quality and engineering services to a wide range of industries, government departments, and consulting firms in Southern Africa.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Northstar Environmental Group INCnorthstarenv.com HQ: Gallatin, TN, United StatesReported employees: 11-50 | Gallatin, TN, United States | 11-50 | Exact match | 25 contacts → |
“Northstar Environmental Group has been providing effective and reliable solutions to industrial environmental problems since 1991.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 478 company matches
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Air permit consultants: dataset insights
September 21, 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
477 records in the displayed employee bands.
1 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 478 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: September 21, 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 ↗
Air permit consultants by location
1 lists · largest firstEvery Air permit consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for air permit consultants?
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 air permit consultants did RevenueBase find worldwide?
The saved snapshot records 478 matching company records, 3,161 tracked contacts and 1,219 verified emails. The public preview displays 25 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: September 21, 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.
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Cite this list
RevenueBase Data Team. Top 25 air permit consultants worldwide. Snapshot: September 21, 2026. https://revenuebase.ai/companies/browse/air-permit-consultants.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗