Company lists · Data refreshed November 2026

Top 25 Emissions verification firms worldwide

RevenueBase identified 203 company matches for emissions verification firms worldwide as of November 2026 and tracks 1,775 professional contacts across them, including 518 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for emissions verification firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for emissions verification firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
203Companies
1,775Contacts tracked
518Verified emails
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The 25 largest emissions verification firms worldwide

Ranked by team size
Top 25 of 203 company matches for emissions verification firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchFaridabad, IndiaHQ recorded Nov 6, 202651-200116 contacts →

Exact match

“KBS Certification is a pioneer and global leader in Climate Change and Sustainability Services, supporting organizations worldwide in achieving compliance, credibility, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchParis, FranceHQ recorded Nov 6, 202651-200108 contacts →

Exact match

“Normec Verifavia is a global leader in environmental validation, verification, and auditing within the transport and industrial sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLivange, LuxembourgHQ recorded Nov 6, 202651-20087 contacts →

Exact match

“SustainCERT is a climate impact verifier, bringing credibility to climate action.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026501-1,00066 contacts →

Exact match

“We set the standards to measure and manage emissions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchElk City, TX, United StatesHQ recorded Nov 6, 202651-20058 contacts →

Exact match

“GAS provides Nationwide “Emissions Testing and LDAR” Services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchNoida, IndiaHQ recorded Nov 6, 202651-20042 contacts →

Exact match

“Carbon Check (India) Pvt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202611-5041 contacts →

Exact match

“We are emissions reduction experts with a vision for a world with near-zero oil & gas methane emissions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“CarbonChain's platform enables companies to track, report and reduce their supply chain emissions, covering the most carbon-intensive industries (metals and mining, agriculture…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBrea, CA, United StatesHQ recorded Nov 6, 202651-20038 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSeattle, DC, United StatesHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“The Greenhouse Gas Management Institute (GHGMI) was founded in response to the current and future need for qualified greenhouse gas (GHG) professionals.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchKaty, TX, United StatesHQ recorded Nov 6, 202651-20030 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
12Exact matchChalandri, GreeceHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“Based in Greece, EMICERT is a leading verification body for greenhouse gas emissions with a global network of 25 Lead Verifiers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchCarrollton, TX, United StatesHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“BAIR IS NOW OFFERING LDAR SERVICES!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchRed Deer, AB, CanadaHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“As part of Spartan Controls, Signet strengthens emissions testing and reliability services by combining unbiased gas skid maintenance recommendations, expert equipment guidance…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchHayward, CA, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchNorth Lawrence, OH, United StatesHQ recorded Nov 6, 20261-1017 contacts →

Exact match

“Aster Global is a progressive leader in the development and provision of services within the international greenhouse gas (GHG) ecosystem services, carbon sequestration, and GHG…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchThane, IndiaHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“We are a neutral, technically high-qualified, multidisciplinary third-party certification body for greenhouse gas mitigation measures and other relevant activities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchWauconda, IL, United StatesHQ recorded Nov 6, 202651-20016 contacts →

Exact match

“Established in 1983, ARI Environmental, Inc.(ARI) is a leading environmental air emissions testing company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSydney, AustraliaHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“NetNada was built on the mission that companies, no matter their size, have a vital role to play in the future of our planet.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHarvest, AL, United StatesHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Compliance Assurance Associates, Inc.(CAA) provides a complete visible emission evaluator training and certification program (aka smoke school or opacity training) in accordance…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSeattle, WA, United StatesHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Climate Vault Solutions is an independent, science-driven firm helping organizations make defensible decisions in carbon markets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMolde, NorwayHQ recorded Nov 6, 20261-1014 contacts →

Exact match

“Ecoxy is a leading provider of accredited emissions measurement, independent verification and climate advisory services for the maritime, offshore and onshore industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchGrand Junction, United StatesHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“A Colorado-based company founded in 2005, Ruby Canyon Engineering, Inc.(RCE) is dedicated to the accurate greenhouse gas (GHG) emissions accounting of corporate inventories…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSheridan, WY, United StatesHQ recorded Nov 6, 202611-5013 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 · Nov 6, 2026 · View company records in RevenueBase
25Exact matchRoseville, CA, United StatesHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“ECO, Inc.”

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

Showing 25 of 203 emissions verification firms worldwide

See the full list, filter by size, metro and specialty, and access 518 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Emissions verification firms worldwide at a glance

As of Nov 6, 2026
29.2%Verified-email coverage
8.7Average contacts per company
1-10Median size (employees)
5.9%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
126
11-50
53
51-200
20
201-500
1
501-1,000
3

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for emissions verification firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “emissions verification firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 518 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.

Emissions verification firms by location

1 lists · largest first

Every Emissions verification firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “emissions verification firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many emissions verification firms are there worldwide?

RevenueBase identified 203 company matches for emissions verification firms worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

KBS Certification Services LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most emissions verification firms?

The United States leads with 43 companies. Every emissions verification firms list by country and city is linked on this page.

Which city has the most emissions verification firms?

London leads with 12 company records, followed by Calgary (6) and Bangalore (3).

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 518 professional contacts with verified work emails tracked across these 203 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.