Company lists · Data refreshed November 2026
Top 25 Emissions control consultants based in the United States
RevenueBase identified 178 company matches for emissions control consultants associated with the United States as of November 2026 and tracks 4,680 professional contacts across them, including 1,779 with verified work emails. Austin is the largest hub.
This list covers company matches for emissions control consultants 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 November 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest emissions control consultants based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 566 contacts → | ||||
Exact match “Organizations come to ACT when a climate target, regulatory requirement, or emissions challenge needs a solution.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 335 contacts → | ||||
Exact match “Reducing emissions, detecting leaks, mitigating risk, optimizing operations, ensuring compliance and advancing research are some of the challenges facing our clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 158 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 99 contacts → | ||||
Exact match “Based in Austin, Texas, ESC Spectrum, an Alliance Technical Group company, is a leading provider of products and services for customers in a variety of industries, from Electric…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 77 contacts → | ||||
Exact match “Insight Environmental is an environmental consulting firm founded on education, experience, and expertise.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 62 contacts → | ||||
Exact match “Sage ATC Environmental Consulting is now Atlas.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 52 contacts → | ||||
Exact match “STAX is an emerging leader in emissions reduction services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 48 contacts → | ||||
Exact match “Conifer Systems designs, manufactures and installs state-of-the-art emissions control systems and provides aftermarket services to enable industries to meet and exceed their…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 47 contacts → | ||||
Exact match “EnviroCare International, Inc- A CECO Environmental Brand.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 41 contacts → | ||||
Exact match “Air Quality and Environmental Consulting Bison Engineering, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 36 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 33 contacts → | ||||
Exact match “Pioneers** in the fundamentals of greenhouse gas management, Agendi brings a team of multidisciplinary experts to develop and implement your climate and sustainability programs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 31 contacts → | ||||
Exact match “30+ YEARS OF PROVEN RESULTS AMP-Cherokee offers environmental compliance and process performance solutions for air quality and emissions monitoring with our turnkey CEMS, FTIR…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 30 contacts → | ||||
Exact match “Ashworth Leininger Group was formed to offer expert air quality and environmental consulting services to a broad spectrum of clients – industry, trade associations and agencies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 30 contacts → | ||||
Exact match “Formed in 2010 and headquartered in Houston, Texas, Encino Environmental Services, LLC is an emissions testing, monitoring, and compliance support firm serving critical…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 29 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 26 contacts → | ||||
Exact match “INNOVATIVE AIR POLLUTION CONTROL | ENGINEERING EXCELLENCE | EXPERT SOLUTIONS Catalytic Products International Catalytic Products International is a trusted resource providing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 23 contacts → | ||||
Exact match “BAIR IS NOW OFFERING LDAR SERVICES!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 22 contacts → | ||||
Exact match “ClearSign Technologies (NASDAQ: CLIR) designs and develops technologies that aim to solve the greatest challenge facing the energy industry today: capital intensive emissions…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 21 contacts → | ||||
Exact match “Air Sciences has for more than 40 years, provided air quality consulting expertise throughout the western United States, Alaska, and Puerto Rico, as well as countries in South…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 19 contacts → | ||||
Exact match “JessCo Solutions is the leader in providing cutting-edge emission control equipment and services for the oil and gas industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 19 contacts → | ||||
Exact match “Health & Safety in the Fire & EMS Industry and Emission solutions for all other Industries.See our websites for additional & Ward Diesel & Ward Clean Air Products History: Ward…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 18 contacts → | ||||
Exact match “Trace Environmental provides a fully EPA compliant suite of products and services for the continuous emissions monitoring market.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 17 contacts → | ||||
Exact match “Spokane Regional Clean Air Agency (Spokane Clean Air) is one of seven local air pollution control agencies in Washington state.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 17 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 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 “emissions control 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 178 emissions control consultants based in the United States
See the full list, filter by size, metro and specialty, and access 1,779 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Emissions control consultants based in the United States at a glance
As of Nov 6, 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 178 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 “emissions control 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. 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 1,779 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.
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 “emissions control consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many emissions control consultants are there based in the United States?
RevenueBase identified 178 company matches for emissions control consultants associated with the United States 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?
ACT Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most emissions control consultants?
Austin leads with 6 company records, followed by Houston (6) and Huntington Beach (4).
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 1,779 professional contacts with verified work emails tracked across these 178 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.
Ready to reach these companies? Verified emails and direct dials for all 178 emissions control consultants based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Emissions control consultants by geography
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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Emissions control consultants based in Canada
- Emissions control consultants based in France
- Emissions control consultants based in the United Kingdom
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
Company intelligence · public preview
Top 25 emissions control consultants based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 178 matching company records for emissions control consultants based in the United States, with 4,680 tracked contacts and 1,779 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: November 6, 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 emissions control consultants based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  ACT Groupbrnw.chHQ: Amsterdam, NY, United StatesReported employees: 501-1,000 | Amsterdam, NY, United States | 501-1,000 | Exact match | 566 contacts → |
“Organizations come to ACT when a climate target, regulatory requirement, or emissions challenge needs a solution.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Picarropicarro.comHQ: Santa Clara, CA, United StatesReported employees: 201-500 | Santa Clara, CA, United States | 201-500 | Exact match | 335 contacts → |
“Reducing emissions, detecting leaks, mitigating risk, optimizing operations, ensuring compliance and advancing research are some of the challenges facing our clients.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Cleanair Engineeringcleanair.comHQ: Palatine, TX, United StatesReported employees: 51-200 | Palatine, TX, United States | 51-200 | Exact match | 158 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  ESC Spectrum Corporationescspectrum.comHQ: Austin, FL, United StatesReported employees: 51-200 | Austin, FL, United States | 51-200 | Exact match | 99 contacts → |
“Based in Austin, Texas, ESC Spectrum, an Alliance Technical Group company, is a leading provider of products and services for customers in a variety of industries, from Electric…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Insight Environmental, INCinsightenv.comHQ: Spring, OH, United StatesReported employees: 51-200 | Spring, OH, United States | 51-200 | Exact match | 77 contacts → |
“Insight Environmental is an environmental consulting firm founded on education, experience, and expertise.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Sage ATC Environmental Consultingoneatlas.comHQ: Houston, LA, United StatesReported employees: 201-500 | Houston, LA, United States | 201-500 | Exact match | 62 contacts → |
“Sage ATC Environmental Consulting is now Atlas.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Stax Engineeringstaxengineering.comHQ: Long Beach, CA, United StatesReported employees: 11-50 | Long Beach, CA, United States | 11-50 | Exact match | 52 contacts → |
“STAX is an emerging leader in emissions reduction services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Conifer Systemsconifersystems.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 48 contacts → |
“Conifer Systems designs, manufactures and installs state-of-the-art emissions control systems and provides aftermarket services to enable industries to meet and exceed their…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Envirocare Internationalenvirocare.comHQ: American Canyon, CA, United StatesReported employees: 11-50 | American Canyon, CA, United States | 11-50 | Exact match | 47 contacts → |
“EnviroCare International, Inc- A CECO Environmental Brand.” Recorded description excerpt · November 6, 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 | 41 contacts → |
“Air Quality and Environmental Consulting Bison Engineering, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  AIR Resource Specialistsair-resource.comHQ: Fort Collins, CO, United StatesReported employees: 11-50 | Fort Collins, CO, United States | 11-50 | Exact match | 36 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Agendiagendi.coHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 33 contacts → |
“Pioneers** in the fundamentals of greenhouse gas management, Agendi brings a team of multidisciplinary experts to develop and implement your climate and sustainability programs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Amp-Cherokee Environmental Solutionsampcherokee.comHQ: Angier, LA, United StatesReported employees: 11-50 | Angier, LA, United States | 11-50 | Exact match | 31 contacts → |
“30+ YEARS OF PROVEN RESULTS AMP-Cherokee offers environmental compliance and process performance solutions for air quality and emissions monitoring with our turnkey CEMS, FTIR…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Ashworth Leininger Groupalgcorp.comHQ: Camarillo, CA, United StatesReported employees: 11-50 | Camarillo, CA, United States | 11-50 | Exact match | 30 contacts → |
“Ashworth Leininger Group was formed to offer expert air quality and environmental consulting services to a broad spectrum of clients – industry, trade associations and agencies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Encino Environmental Services, LLCencinoenviron.comHQ: Katy, TX, United StatesReported employees: 51-200 | Katy, TX, United States | 51-200 | Exact match | 30 contacts → |
“Formed in 2010 and headquartered in Houston, Texas, Encino Environmental Services, LLC is an emissions testing, monitoring, and compliance support firm serving critical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Liberty Environmentallibertyenviro.comHQ: Reading, PA, United StatesReported employees: 11-50 | Reading, PA, United States | 11-50 | Exact match | 29 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Catalytic Products International CPIcpilink.comHQ: Lake Zurich, IL, United StatesReported employees: 11-50 | Lake Zurich, IL, United States | 11-50 | Exact match | 26 contacts → |
“INNOVATIVE AIR POLLUTION CONTROL | ENGINEERING EXCELLENCE | EXPERT SOLUTIONS Catalytic Products International Catalytic Products International is a trusted resource providing…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  BAIRthebair.comHQ: Carrollton, TX, United StatesReported employees: 11-50 | Carrollton, TX, United States | 11-50 | Exact match | 23 contacts → |
“BAIR IS NOW OFFERING LDAR SERVICES!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Clearsign Technologiesclearsign.comHQ: Tulsa, WA, United StatesReported employees: 11-50 | Tulsa, WA, United States | 11-50 | Exact match | 22 contacts → |
“ClearSign Technologies (NASDAQ: CLIR) designs and develops technologies that aim to solve the greatest challenge facing the energy industry today: capital intensive emissions…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  AIR Sciences INCairsci.comHQ: Golden, OR, United StatesReported employees: 11-50 | Golden, OR, United States | 11-50 | Exact match | 21 contacts → |
“Air Sciences has for more than 40 years, provided air quality consulting expertise throughout the western United States, Alaska, and Puerto Rico, as well as countries in South…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Jessco Solutionsjesscosolutions.comHQ: San Angelo, TX, United StatesReported employees: 51-200 | San Angelo, TX, United States | 51-200 | Exact match | 19 contacts → |
“JessCo Solutions is the leader in providing cutting-edge emission control equipment and services for the oil and gas industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Beecher Emission Solution Technologies Best -Ward Diesel Filter Systems & Ward Clean AIR Productswarddiesel.comHQ: Horseheads, NY, United StatesReported employees: 51-200 | Horseheads, NY, United States | 51-200 | Exact match | 19 contacts → |
“Health & Safety in the Fire & EMS Industry and Emission solutions for all other Industries.See our websites for additional & Ward Diesel & Ward Clean Air Products History: Ward…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Trace Environmental Systems, INCtraceenv.comHQ: Sparta, NJ, United StatesReported employees: 11-50 | Sparta, NJ, United States | 11-50 | Exact match | 18 contacts → |
“Trace Environmental provides a fully EPA compliant suite of products and services for the continuous emissions monitoring market.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Spokane Regional Clean AIR Agencyspokanecleanair.orgHQ: Spokane, WA, United StatesReported employees: 11-50 | Spokane, WA, United States | 11-50 | Exact match | 17 contacts → |
“Spokane Regional Clean Air Agency (Spokane Clean Air) is one of seven local air pollution control agencies in Washington state.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Blue SKY Environmental, INCblueskyenvironmental.comHQ: Hayward, CA, United StatesReported employees: 11-50 | Hayward, CA, United States | 11-50 | Exact match | 17 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 178 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Emissions control consultants: dataset insights
November 6, 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
177 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 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 178 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: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for emissions control 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 emissions control consultants did RevenueBase find based in the United States?
The saved snapshot records 178 matching company records, 4,680 tracked contacts and 1,779 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: November 6, 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
Emissions control consultants by geography
Cite this list
RevenueBase Data Team. Top 25 emissions control consultants based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/emissions-control-consultants/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Emissions control consultants based in Canada
- Emissions control consultants based in France
- Emissions control consultants based in the United Kingdom
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
Company intelligence · public preview
Top 25 emissions control consultants based in the United States
RevenueBase records 178 matching company records for emissions control consultants based in the United States, with 4,680 tracked contacts and 1,779 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: November 6, 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 emissions control consultants based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | ACT Groupbrnw.ch HQ: Amsterdam, NY, United StatesReported employees: 501-1,000 | Amsterdam, NY, United States | 501-1,000 | Exact match | 566 contacts → |
“Organizations come to ACT when a climate target, regulatory requirement, or emissions challenge needs a solution.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Picarropicarro.com HQ: Santa Clara, CA, United StatesReported employees: 201-500 | Santa Clara, CA, United States | 201-500 | Exact match | 335 contacts → |
“Reducing emissions, detecting leaks, mitigating risk, optimizing operations, ensuring compliance and advancing research are some of the challenges facing our clients.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Cleanair Engineeringcleanair.com HQ: Palatine, TX, United StatesReported employees: 51-200 | Palatine, TX, United States | 51-200 | Exact match | 158 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | ESC Spectrum Corporationescspectrum.com HQ: Austin, FL, United StatesReported employees: 51-200 | Austin, FL, United States | 51-200 | Exact match | 99 contacts → |
“Based in Austin, Texas, ESC Spectrum, an Alliance Technical Group company, is a leading provider of products and services for customers in a variety of industries, from Electric…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Insight Environmental, INCinsightenv.com HQ: Spring, OH, United StatesReported employees: 51-200 | Spring, OH, United States | 51-200 | Exact match | 77 contacts → |
“Insight Environmental is an environmental consulting firm founded on education, experience, and expertise.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Sage ATC Environmental Consultingoneatlas.com HQ: Houston, LA, United StatesReported employees: 201-500 | Houston, LA, United States | 201-500 | Exact match | 62 contacts → |
“Sage ATC Environmental Consulting is now Atlas.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Stax Engineeringstaxengineering.com HQ: Long Beach, CA, United StatesReported employees: 11-50 | Long Beach, CA, United States | 11-50 | Exact match | 52 contacts → |
“STAX is an emerging leader in emissions reduction services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Conifer Systemsconifersystems.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 48 contacts → |
“Conifer Systems designs, manufactures and installs state-of-the-art emissions control systems and provides aftermarket services to enable industries to meet and exceed their…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Envirocare Internationalenvirocare.com HQ: American Canyon, CA, United StatesReported employees: 11-50 | American Canyon, CA, United States | 11-50 | Exact match | 47 contacts → |
“EnviroCare International, Inc- A CECO Environmental Brand.” Recorded description excerpt · November 6, 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 | 41 contacts → |
“Air Quality and Environmental Consulting Bison Engineering, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | AIR Resource Specialistsair-resource.com HQ: Fort Collins, CO, United StatesReported employees: 11-50 | Fort Collins, CO, United States | 11-50 | Exact match | 36 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Agendiagendi.co HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 33 contacts → |
“Pioneers** in the fundamentals of greenhouse gas management, Agendi brings a team of multidisciplinary experts to develop and implement your climate and sustainability programs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Amp-Cherokee Environmental Solutionsampcherokee.com HQ: Angier, LA, United StatesReported employees: 11-50 | Angier, LA, United States | 11-50 | Exact match | 31 contacts → |
“30+ YEARS OF PROVEN RESULTS AMP-Cherokee offers environmental compliance and process performance solutions for air quality and emissions monitoring with our turnkey CEMS, FTIR…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Ashworth Leininger Groupalgcorp.com HQ: Camarillo, CA, United StatesReported employees: 11-50 | Camarillo, CA, United States | 11-50 | Exact match | 30 contacts → |
“Ashworth Leininger Group was formed to offer expert air quality and environmental consulting services to a broad spectrum of clients – industry, trade associations and agencies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Encino Environmental Services, LLCencinoenviron.com HQ: Katy, TX, United StatesReported employees: 51-200 | Katy, TX, United States | 51-200 | Exact match | 30 contacts → |
“Formed in 2010 and headquartered in Houston, Texas, Encino Environmental Services, LLC is an emissions testing, monitoring, and compliance support firm serving critical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Liberty Environmentallibertyenviro.com HQ: Reading, PA, United StatesReported employees: 11-50 | Reading, PA, United States | 11-50 | Exact match | 29 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Catalytic Products International CPIcpilink.com HQ: Lake Zurich, IL, United StatesReported employees: 11-50 | Lake Zurich, IL, United States | 11-50 | Exact match | 26 contacts → |
“INNOVATIVE AIR POLLUTION CONTROL | ENGINEERING EXCELLENCE | EXPERT SOLUTIONS Catalytic Products International Catalytic Products International is a trusted resource providing…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | BAIRthebair.com HQ: Carrollton, TX, United StatesReported employees: 11-50 | Carrollton, TX, United States | 11-50 | Exact match | 23 contacts → |
“BAIR IS NOW OFFERING LDAR SERVICES!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Clearsign Technologiesclearsign.com HQ: Tulsa, WA, United StatesReported employees: 11-50 | Tulsa, WA, United States | 11-50 | Exact match | 22 contacts → |
“ClearSign Technologies (NASDAQ: CLIR) designs and develops technologies that aim to solve the greatest challenge facing the energy industry today: capital intensive emissions…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | AIR Sciences INCairsci.com HQ: Golden, OR, United StatesReported employees: 11-50 | Golden, OR, United States | 11-50 | Exact match | 21 contacts → |
“Air Sciences has for more than 40 years, provided air quality consulting expertise throughout the western United States, Alaska, and Puerto Rico, as well as countries in South…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Jessco Solutionsjesscosolutions.com HQ: San Angelo, TX, United StatesReported employees: 51-200 | San Angelo, TX, United States | 51-200 | Exact match | 19 contacts → |
“JessCo Solutions is the leader in providing cutting-edge emission control equipment and services for the oil and gas industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Beecher Emission Solution Technologies Best -Ward Diesel Filter Systems & Ward Clean AIR Productswarddiesel.com HQ: Horseheads, NY, United StatesReported employees: 51-200 | Horseheads, NY, United States | 51-200 | Exact match | 19 contacts → |
“Health & Safety in the Fire & EMS Industry and Emission solutions for all other Industries.See our websites for additional & Ward Diesel & Ward Clean Air Products History: Ward…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Trace Environmental Systems, INCtraceenv.com HQ: Sparta, NJ, United StatesReported employees: 11-50 | Sparta, NJ, United States | 11-50 | Exact match | 18 contacts → |
“Trace Environmental provides a fully EPA compliant suite of products and services for the continuous emissions monitoring market.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Spokane Regional Clean AIR Agencyspokanecleanair.org HQ: Spokane, WA, United StatesReported employees: 11-50 | Spokane, WA, United States | 11-50 | Exact match | 17 contacts → |
“Spokane Regional Clean Air Agency (Spokane Clean Air) is one of seven local air pollution control agencies in Washington state.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Blue SKY Environmental, INCblueskyenvironmental.com HQ: Hayward, CA, United StatesReported employees: 11-50 | Hayward, CA, United States | 11-50 | Exact match | 17 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 178 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Emissions control consultants: dataset insights
November 6, 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
177 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 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 178 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: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for emissions control 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 emissions control consultants did RevenueBase find based in the United States?
The saved snapshot records 178 matching company records, 4,680 tracked contacts and 1,779 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: November 6, 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
Emissions control consultants by geography
Cite this list
RevenueBase Data Team. Top 25 emissions control consultants based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/emissions-control-consultants/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Emissions control consultants based in Canada
- Emissions control consultants based in France
- Emissions control consultants based in the United Kingdom
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States