Company lists · Data refreshed November 2026

Top 25 Decommissioning consultants worldwide

RevenueBase identified 1,911 company matches for decommissioning consultants worldwide as of November 2026 and tracks 30,308 professional contacts across them, including 9,889 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

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

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

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
1,911Companies
30,308Contacts tracked
9,889Verified emails
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The 25 largest decommissioning consultants worldwide

Ranked by team size
Top 25 of 1,911 company matches for decommissioning consultants 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 matchBurlington, CA, United StatesHQ recorded Nov 6, 2026501-1,000553 contacts →

Exact match

“EBI Consulting is a national environmental and engineering consulting firm helping asset owners, investors, lenders, operators, and telecom infrastructure providers protect value…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSan Donato Milanese, ItalyHQ recorded Nov 6, 20261,001-5,000550 contacts →

Exact match

“We are Eni’s environmental company active for over 20 years, in giving new life, according to the principles of the circular economy, to industrial land, water and waste through…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchIslandia, NY, United StatesHQ recorded Nov 6, 2026201-500474 contacts →

Exact match

“The Roux organization applies sophisticated scientific, technical, and managerial resources to develop and implement effective, efficient, and sustainable solutions to our…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchWall Township, VA, United StatesHQ recorded Nov 6, 2026201-500470 contacts →

Exact match

“We are Groundwater & Environmental Services, Inc, better known as GES.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMclean, VA, United StatesHQ recorded Nov 6, 2026201-500411 contacts →

Exact match

“Founded in 2005, the vision behind Primary Integration (PI) was to build the most elite mission critical commissioning/data center commissioning and operational risk management…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchParis La Défense Cedex, FranceHQ recorded Nov 6, 20261,001-5,000392 contacts →

Exact match

“As a European pioneer, Cyclife group offers integrated servicing in nuclear decommissioning and dismantling radioactive waste management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchVancouver, BC, CanadaHQ recorded Nov 6, 2026201-500362 contacts →

Exact match

“Triton Environmental Consultants knows western Canada.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchRueil-malmaison Cedex, FranceHQ recorded Nov 6, 2026201-500327 contacts →

Exact match

“Au sein des métiers Réseaux France de VINCI Construction, Cardem est spécialisé dans la dépose, la déconstruction mécanique et à l’explosif ainsi que dans le démantèlement…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchChorley, United KingdomHQ recorded Nov 6, 2026501-1,000307 contacts →

Exact match

“We support our clients by delivering safe, practical and efficient solutions to complex nuclear challenges, with a strong focus on disposability.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchParis, FranceHQ recorded Nov 6, 2026501-1,000286 contacts →

Exact match

“VALGO - Régénérer, Rénover, Revaloriser Entreprise internationale spécialisée dans la réhabilitation des sites pollués, VALGO transforme les sols, bâtiments et infrastructures…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBergen, NorwayHQ recorded Nov 6, 2026201-500255 contacts →

Exact match

“Omega Subsea delivers ROV, survey, engineering, and subsea project services to the global offshore industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSpringfield, AR, United StatesHQ recorded Nov 6, 2026201-500245 contacts →

Exact match

“Environmental Works, Inc.(EWI) offers truly comprehensive environmental solutions for a variety of industries, businesses, and municipalities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchWilmington, TX, United StatesHQ recorded Nov 6, 2026501-1,000244 contacts →

Exact match

“Founded in 1977 Sonic Systems International (SSI) is a full-service quality-consulting firm serving the nuclear power generation utility industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMissoula, MT, United StatesHQ recorded Nov 6, 2026201-500241 contacts →

Exact match

“Envirocon safely and reliably delivers projects that protect, remediate, and restore our environment for commercial and government clients nationwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchToronto, MB, CanadaHQ recorded Nov 6, 2026201-500233 contacts →

Exact match

“QM Environmental is a leading Canadian environmental and industrial services provider, trusted for over three decades to deliver complex projects safely, responsibly, and with…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchFazenda Rio Grande, BrazilHQ recorded Nov 6, 202651-200226 contacts →

Exact match

“A GEOAMBIENTE Geologia e Engenharia Ambiental atua no Gerenciamento de Áreas Contaminadas provendo soluções em Diagnóstico de Passivos Ambientais e Remediação de Solo e Água…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMiami Lakes, FL, United StatesHQ recorded Nov 6, 2026201-500211 contacts →

Exact match

“The EE & G Group dates back to 1986 and has been in business for over 33 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSydney, AustraliaHQ recorded Nov 6, 2026201-500198 contacts →

Exact match

“Liberty Industrial is an award-winning provider of specialist decommissioning, demolition, deconstruction and remediation services across the globe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchElmhurst, IN, United StatesHQ recorded Nov 6, 2026501-1,000198 contacts →

Exact match

“Brandenburg, established in 1968, is one of the nation’s premier firms specializing in demolition and environmental remediation, which includes asbestos abatement, hazardous…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchAtlanta, IL, United StatesHQ recorded Nov 6, 2026201-500198 contacts →

Exact match

“With more than 50 years of excellence, KEMRON Environmental Services, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLas Vegas, NV, United StatesHQ recorded Nov 6, 202651-200185 contacts →

Exact match

“Longenecker & Associates: A Geosyntec Company (L&A) has more than 35 years’ experience supporting the national security, environmental remediation, scientific research and energy…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchVénissieux, FranceHQ recorded Nov 6, 2026201-500184 contacts →

Exact match

“Depuis 1983, SERPOL est une entreprise engagée au service de l’environnement et de ses clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSpicalaan 13 2132 Jg Hoofddorp the Netherlands, NetherlandsHQ recorded Nov 6, 202651-200179 contacts →

Exact match

“Petrodec is a responsible offshore contractor, ready to deliver safe, efficient and innovative decommissioning or re-use solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSeattle, OR, United StatesHQ recorded Nov 6, 202651-200170 contacts →

Exact match

“Herrera Environmental Consultants is a leading engineering and scientific consulting firm focused on restoration, water, and sustainable development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchRijssen, NetherlandsHQ recorded Nov 6, 202651-200168 contacts →

Exact match

“RGS Slooptechnieken is opgericht in 1959.”

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

Showing 25 of 1,911 decommissioning consultants worldwide

See the full list, filter by size, metro and specialty, and access 9,889 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Decommissioning consultants worldwide at a glance

As of Nov 6, 2026
32.6%Verified-email coverage
15.9Average contacts per company
11-50Median size (employees)
1.7%Largest-city concentration · Sao Paulo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
927
11-50
652
51-200
217
201-500
61
501-1,000
13
1,001-5,000
14
5,001-10,000
1
10001+
1

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 decommissioning consultants are linked below.
What qualifies
Company records worldwide whose business descriptions match “decommissioning consultants” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 9,889 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.

Decommissioning consultants by location

10 lists · largest first

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

Countries

Cities

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 “decommissioning consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many decommissioning consultants are there worldwide?

RevenueBase identified 1,911 company matches for decommissioning consultants 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?

EBI Consulting tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most decommissioning consultants?

The United States leads with 688 companies, followed by Brazil (126) and the United Kingdom (121). Every decommissioning consultants list by country and city is linked on this page.

Which city has the most decommissioning consultants?

Sao Paulo leads with 32 company records, followed by Calgary (23) and Houston (22).

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 9,889 professional contacts with verified work emails tracked across these 1,911 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.