Company lists · Data refreshed September 2026
Top 25 Automotive emissions testing companies based in the United States
RevenueBase identified 134 company matches for automotive emissions testing companies associated with the United States as of September 2026 and tracks 1,140 professional contacts across them, including 359 with verified work emails. Sacramento is the largest hub.
This list covers company matches for automotive emissions testing companies 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 September 16, 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 automotive emissions testing companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 250 contacts → | ||||
Exact match “Kett Engineering Corporation has been operating for over 60 years and has spent the past 28 years dedicating its services to supporting the automotive testing and staffing needs…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 2 | 70 contacts → | ||||
Exact match “TRP Laboratories provides standard and custom testing services across the United States.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 3 | 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 16, 2026 · View company records in RevenueBase | |||||
| 4 | 59 contacts → | ||||
Exact match “GAS provides Nationwide “Emissions Testing and LDAR” Services.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 5 | 54 contacts → | ||||
Exact match “Hickok has been in the business of developing and manufacturing tools and equipment for over 100 years.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 6 | 38 contacts → | ||||
Exact match “Excel Engineering is a highly qualified and certified provider of testing services.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 7 | 38 contacts → | ||||
Exact match “Since 1984, we have been designing, implementing, operating and servicing various types of motor vehicle emissions and technical/safety inspection programs.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 8 | 36 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 · Sep 16, 2026 · View company records in RevenueBase | |||||
| 9 | 33 contacts → | ||||
Exact match “Apex Instruments was established in 1988 as an American-owned company with a worldwide impact.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 10 | 31 contacts → | ||||
Exact match “Erthwrks provides air testing services for industry.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 11 | 30 contacts → | ||||
Exact match “BAIR IS NOW OFFERING LDAR SERVICES!” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 12 | 29 contacts → | ||||
Exact match “Grace Consulting Inc.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 13 | 16 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 14 | 16 contacts → | ||||
Exact match “Established in 1983, ARI Environmental, Inc.(ARI) is a leading environmental air emissions testing company.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 15 | 16 contacts → | ||||
Exact match “We offer technical solutions to help solve today’s challenges in the global market place in the fight against pollution from internal combustion engines (ICE).” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 16 | 16 contacts → | ||||
Exact match “Global Pioneer and Leader in DPF & DOC Cleaning, Restoration, & Emissions Systems” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 17 | 15 contacts → | ||||
Exact match “We are emissions compliance professionals who specialize in communications-driven emissions testing to help our partners in the oil & gas industries achieve their compliance goals.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 18 | 15 contacts → | ||||
Exact match “Environmental Testing & Consulting Services Advanced Industrial Resources (AIR) is an independent, Atlanta-based environmental testing and consulting firm that provides…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 19 | 13 contacts → | ||||
Exact match “ECO, Inc.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 20 | 11 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 21 | 10 contacts → | ||||
Exact match “SEAS is an environmental testing company that has the capability to perform all of your source testing requirements.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 22 | 9 contacts → | ||||
Exact match “Today FleetServ provides a full range of diesel emissions solutions, eliminating all of the stress and headache often associated with diesel emissions.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 23 | 9 contacts → | ||||
Exact match “ESW America is a leading independent emissions testing company based in Montgomeryville, PA.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 24 | 8 contacts → | ||||
Exact match “E2A operates a state-of-the-art emissions testing and analysis laboratory based in Morgantown, WV.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 25 | 8 contacts → | ||||
Exact match “Our name is new but our experience is anything but!” Recorded in the RevenueBase company graph · Sep 16, 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 “automotive emissions testing companies”. 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 134 automotive emissions testing companies based in the United States
See the full list, filter by size, metro and specialty, and access 359 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Automotive emissions testing companies based in the United States at a glance
As of Sep 16, 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 134 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 “automotive emissions testing companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. 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 359 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 16, 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 “automotive emissions testing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many automotive emissions testing companies are there based in the United States?
RevenueBase identified 134 company matches for automotive emissions testing companies associated with the United States 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?
Kett Engineering Corporation tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most automotive emissions testing companies?
Sacramento leads with 7 company records, followed by Los Angeles (3) and Austin (2).
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 359 professional contacts with verified work emails tracked across these 134 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 16, 2026.
Ready to reach these companies? Verified emails and direct dials for all 134 automotive emissions testing companies based in the United States. Start with a free account, no credit card.
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Automotive emissions testing companies 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
- Automotive emissions testing companies based in Germany
- AI companies based in the United States
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- Manufacturing companies based in the United States
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Company intelligence · public preview
Top 25 automotive emissions testing companies 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 134 matching company records for automotive emissions testing companies based in the United States, with 1,140 tracked contacts and 359 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 16, 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 automotive emissions testing companies 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 |  Kett Engineering Corporationketteng.comHQ: Los Angeles, CA, United StatesReported employees: 501-1,000 | Los Angeles, CA, United States | 501-1,000 | Exact match | 250 contacts → |
“Kett Engineering Corporation has been operating for over 60 years and has spent the past 28 years dedicating its services to supporting the automotive testing and staffing needs…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  TRP Laboratoriestrplabs.comHQ: Troy, MI, United StatesReported employees: 51-200 | Troy, MI, United States | 51-200 | Exact match | 70 contacts → |
“TRP Laboratories provides standard and custom testing services across the United States.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  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 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Great Plains Analytical Servicesgasinc.usHQ: Elk City, OK, United StatesReported employees: 51-200 | Elk City, OK, United States | 51-200 | Exact match | 59 contacts → |
“GAS provides Nationwide “Emissions Testing and LDAR” Services.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Hickok Waekon, LLChickokwaekon.com HQ: Cleveland, OH, United StatesReported employees: 11-50 | Cleveland, OH, United States | 11-50 | Exact match | 54 contacts → |
“Hickok has been in the business of developing and manufacturing tools and equipment for over 100 years.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Excel Engineeringexcelengineering.org HQ: Diagonal, IA, United StatesReported employees: 51-200 | Diagonal, IA, United States | 51-200 | Exact match | 38 contacts → |
“Excel Engineering is a highly qualified and certified provider of testing services.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Worldwide Environmentalwep-inc.comHQ: Brea, CA, United StatesReported employees: 51-200 | Brea, CA, United States | 51-200 | Exact match | 38 contacts → |
“Since 1984, we have been designing, implementing, operating and servicing various types of motor vehicle emissions and technical/safety inspection programs.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Encino Environmental Services, LLCencinoenviron.comHQ: Katy, TX, United StatesReported employees: 51-200 | Katy, TX, United States | 51-200 | Exact match | 36 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 · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Apex Instrumentsapexinst.comHQ: Fuquay-varina, NC, United StatesReported employees: 11-50 | Fuquay-varina, NC, United States | 11-50 | Exact match | 33 contacts → |
“Apex Instruments was established in 1988 as an American-owned company with a worldwide impact.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Erthwrks, LLCerthwrks.com HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 31 contacts → |
“Erthwrks provides air testing services for industry.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  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 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Grace Consulting, INCgcitest.com HQ: Wellington, OH, United StatesReported employees: 51-200 | Wellington, OH, United States | 51-200 | Exact match | 29 contacts → |
“Grace Consulting Inc.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Blue SKY Environmental, INCblueskyenvironmental.comHQ: Hayward, CA, United StatesReported employees: 11-50 | Hayward, CA, United States | 11-50 | Exact match | 16 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 |  ARI Environmental, INCarienv.comHQ: Wauconda, IL, United StatesReported employees: 51-200 | Wauconda, IL, United States | 51-200 | Exact match | 16 contacts → |
“Established in 1983, ARI Environmental, Inc.(ARI) is a leading environmental air emissions testing company.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Prime ONE Contractingpoc-aip.com HQ: Kentwood, MI, United StatesReported employees: 11-50 | Kentwood, MI, United States | 11-50 | Exact match | 16 contacts → |
“We offer technical solutions to help solve today’s challenges in the global market place in the fight against pollution from internal combustion engines (ICE).” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Ceramex North America LLCceramexnorthamerica.com HQ: Springfield, MO, United StatesReported employees: 11-50 | Springfield, MO, United States | 11-50 | Exact match | 16 contacts → |
“Global Pioneer and Leader in DPF & DOC Cleaning, Restoration, & Emissions Systems” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Slipstreamslipstreamtesting.com HQ: Sheridan, WY, United StatesReported employees: 11-50 | Sheridan, WY, United States | 11-50 | Exact match | 15 contacts → |
“We are emissions compliance professionals who specialize in communications-driven emissions testing to help our partners in the oil & gas industries achieve their compliance goals.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Advanced Industrial Resources, INCairtest1.comHQ: Acworth, GA, United StatesReported employees: 11-50 | Acworth, GA, United States | 11-50 | Exact match | 15 contacts → |
“Environmental Testing & Consulting Services Advanced Industrial Resources (AIR) is an independent, Atlanta-based environmental testing and consulting firm that provides…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  ECO Engine Certification Organizationenginecert.comHQ: Roseville, CA, United StatesReported employees: 1-10 | Roseville, CA, United States | 1-10 | Exact match | 13 contacts → |
“ECO, Inc.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Catalyst AIR Management, INCcatalystair.com HQ: Knoxville, TN, United StatesReported employees: 11-50 | Knoxville, TN, United States | 11-50 | Exact match | 11 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | Sanders Engineering And Analytical Services, INCsandersengineering.com HQ: Semmes, AL, United StatesReported employees: 11-50 | Semmes, AL, United States | 11-50 | Exact match | 10 contacts → |
“SEAS is an environmental testing company that has the capability to perform all of your source testing requirements.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Fleetservfleetserv.com HQ: San Bernardino, CA, United StatesReported employees: 11-50 | San Bernardino, CA, United States | 11-50 | Exact match | 9 contacts → |
“Today FleetServ provides a full range of diesel emissions solutions, eliminating all of the stress and headache often associated with diesel emissions.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | ESW Americaeswamerica.com HQ: Montgomeryville, PA, United StatesReported employees: 11-50 | Montgomeryville, PA, United States | 11-50 | Exact match | 9 contacts → |
“ESW America is a leading independent emissions testing company based in Montgomeryville, PA.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Energy Environmental Analyticse2-a.com HQ: Morgantown, WV, United StatesReported employees: 11-50 | Morgantown, WV, United States | 11-50 | Exact match | 8 contacts → |
“E2A operates a state-of-the-art emissions testing and analysis laboratory based in Morgantown, WV.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | The Vexagroupvexagroup.net HQ: Wixom, MI, United StatesReported employees: 1-10 | Wixom, MI, United States | 1-10 | Exact match | 8 contacts → |
“Our name is new but our experience is anything but!” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 134 company matches
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Automotive emissions testing companies: dataset insights
September 16, 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
129 records in the displayed employee bands.
5 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 134 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 16, 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 automotive emissions testing companies?
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 automotive emissions testing companies did RevenueBase find based in the United States?
The saved snapshot records 134 matching company records, 1,140 tracked contacts and 359 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 16, 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
Automotive emissions testing companies by geography
Cite this list
RevenueBase Data Team. Top 25 automotive emissions testing companies based in the United States. Snapshot: September 16, 2026. https://revenuebase.ai/companies/automotive-emissions-testing-companies/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
- Automotive emissions testing companies based in Germany
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
Company intelligence · public preview
Top 25 automotive emissions testing companies based in the United States
RevenueBase records 134 matching company records for automotive emissions testing companies based in the United States, with 1,140 tracked contacts and 359 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 16, 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 automotive emissions testing companies 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 | Kett Engineering Corporationketteng.com HQ: Los Angeles, CA, United StatesReported employees: 501-1,000 | Los Angeles, CA, United States | 501-1,000 | Exact match | 250 contacts → |
“Kett Engineering Corporation has been operating for over 60 years and has spent the past 28 years dedicating its services to supporting the automotive testing and staffing needs…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | TRP Laboratoriestrplabs.com HQ: Troy, MI, United StatesReported employees: 51-200 | Troy, MI, United States | 51-200 | Exact match | 70 contacts → |
“TRP Laboratories provides standard and custom testing services across the United States.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Great Plains Analytical Servicesgasinc.us HQ: Elk City, OK, United StatesReported employees: 51-200 | Elk City, OK, United States | 51-200 | Exact match | 59 contacts → |
“GAS provides Nationwide “Emissions Testing and LDAR” Services.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Hickok Waekon, LLChickokwaekon.com HQ: Cleveland, OH, United StatesReported employees: 11-50 | Cleveland, OH, United States | 11-50 | Exact match | 54 contacts → |
“Hickok has been in the business of developing and manufacturing tools and equipment for over 100 years.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Excel Engineeringexcelengineering.org HQ: Diagonal, IA, United StatesReported employees: 51-200 | Diagonal, IA, United States | 51-200 | Exact match | 38 contacts → |
“Excel Engineering is a highly qualified and certified provider of testing services.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Worldwide Environmentalwep-inc.com HQ: Brea, CA, United StatesReported employees: 51-200 | Brea, CA, United States | 51-200 | Exact match | 38 contacts → |
“Since 1984, we have been designing, implementing, operating and servicing various types of motor vehicle emissions and technical/safety inspection programs.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Encino Environmental Services, LLCencinoenviron.com HQ: Katy, TX, United StatesReported employees: 51-200 | Katy, TX, United States | 51-200 | Exact match | 36 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 · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Apex Instrumentsapexinst.com HQ: Fuquay-varina, NC, United StatesReported employees: 11-50 | Fuquay-varina, NC, United States | 11-50 | Exact match | 33 contacts → |
“Apex Instruments was established in 1988 as an American-owned company with a worldwide impact.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Erthwrks, LLCerthwrks.com HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 31 contacts → |
“Erthwrks provides air testing services for industry.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 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 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Grace Consulting, INCgcitest.com HQ: Wellington, OH, United StatesReported employees: 51-200 | Wellington, OH, United States | 51-200 | Exact match | 29 contacts → |
“Grace Consulting Inc.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Blue SKY Environmental, INCblueskyenvironmental.com HQ: Hayward, CA, United StatesReported employees: 11-50 | Hayward, CA, United States | 11-50 | Exact match | 16 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 | ARI Environmental, INCarienv.com HQ: Wauconda, IL, United StatesReported employees: 51-200 | Wauconda, IL, United States | 51-200 | Exact match | 16 contacts → |
“Established in 1983, ARI Environmental, Inc.(ARI) is a leading environmental air emissions testing company.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Prime ONE Contractingpoc-aip.com HQ: Kentwood, MI, United StatesReported employees: 11-50 | Kentwood, MI, United States | 11-50 | Exact match | 16 contacts → |
“We offer technical solutions to help solve today’s challenges in the global market place in the fight against pollution from internal combustion engines (ICE).” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Ceramex North America LLCceramexnorthamerica.com HQ: Springfield, MO, United StatesReported employees: 11-50 | Springfield, MO, United States | 11-50 | Exact match | 16 contacts → |
“Global Pioneer and Leader in DPF & DOC Cleaning, Restoration, & Emissions Systems” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Slipstreamslipstreamtesting.com HQ: Sheridan, WY, United StatesReported employees: 11-50 | Sheridan, WY, United States | 11-50 | Exact match | 15 contacts → |
“We are emissions compliance professionals who specialize in communications-driven emissions testing to help our partners in the oil & gas industries achieve their compliance goals.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Advanced Industrial Resources, INCairtest1.com HQ: Acworth, GA, United StatesReported employees: 11-50 | Acworth, GA, United States | 11-50 | Exact match | 15 contacts → |
“Environmental Testing & Consulting Services Advanced Industrial Resources (AIR) is an independent, Atlanta-based environmental testing and consulting firm that provides…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | ECO Engine Certification Organizationenginecert.com HQ: Roseville, CA, United StatesReported employees: 1-10 | Roseville, CA, United States | 1-10 | Exact match | 13 contacts → |
“ECO, Inc.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Catalyst AIR Management, INCcatalystair.com HQ: Knoxville, TN, United StatesReported employees: 11-50 | Knoxville, TN, United States | 11-50 | Exact match | 11 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | Sanders Engineering And Analytical Services, INCsandersengineering.com HQ: Semmes, AL, United StatesReported employees: 11-50 | Semmes, AL, United States | 11-50 | Exact match | 10 contacts → |
“SEAS is an environmental testing company that has the capability to perform all of your source testing requirements.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Fleetservfleetserv.com HQ: San Bernardino, CA, United StatesReported employees: 11-50 | San Bernardino, CA, United States | 11-50 | Exact match | 9 contacts → |
“Today FleetServ provides a full range of diesel emissions solutions, eliminating all of the stress and headache often associated with diesel emissions.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | ESW Americaeswamerica.com HQ: Montgomeryville, PA, United StatesReported employees: 11-50 | Montgomeryville, PA, United States | 11-50 | Exact match | 9 contacts → |
“ESW America is a leading independent emissions testing company based in Montgomeryville, PA.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Energy Environmental Analyticse2-a.com HQ: Morgantown, WV, United StatesReported employees: 11-50 | Morgantown, WV, United States | 11-50 | Exact match | 8 contacts → |
“E2A operates a state-of-the-art emissions testing and analysis laboratory based in Morgantown, WV.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | The Vexagroupvexagroup.net HQ: Wixom, MI, United StatesReported employees: 1-10 | Wixom, MI, United States | 1-10 | Exact match | 8 contacts → |
“Our name is new but our experience is anything but!” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 134 company matches
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Automotive emissions testing companies: dataset insights
September 16, 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
129 records in the displayed employee bands.
5 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 134 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 16, 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 automotive emissions testing companies?
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 automotive emissions testing companies did RevenueBase find based in the United States?
The saved snapshot records 134 matching company records, 1,140 tracked contacts and 359 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 16, 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
Automotive emissions testing companies by geography
Cite this list
RevenueBase Data Team. Top 25 automotive emissions testing companies based in the United States. Snapshot: September 16, 2026. https://revenuebase.ai/companies/automotive-emissions-testing-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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