Company lists · Data refreshed October 2026

Top 25 Aviation sustainability consultants worldwide

Name: Aviation sustainability consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 7, 2026 11,466 companies tracked

RevenueBase identified 11,466 company matches for aviation sustainability consultants worldwide as of October 2026 and tracks 97,931 professional contacts across them, including 32,091 with verified work emails. Brazil is the largest market and London the largest hub.

This list covers company matches for aviation sustainability 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 October 7, 2026. Country and city lists for aviation sustainability 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 Oct 7, 2026 How this list was built

11,466Companies

97,931Contacts tracked

32,091Verified emails

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The 25 largest aviation sustainability consultants worldwide

Ranked by team size

Top 25 of 11,466 company matches for aviation sustainability consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 7, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	ERM	Exact match	London, United KingdomHQ recorded Oct 7, 2026	5,001-10,000	9,119 contacts →
	Exact match “Sustainability is our business.” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
2	Ambipar	Exact match	Sao Paulo, BrazilHQ recorded Oct 7, 2026	10001+	2,599 contacts →
	Exact match “Our mission is to promote ecological transformation by investing in decarbonization projects, circular economy, energy transition, and environmental regeneration.” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
3	Swca Environmental Consultants	Exact match	Phoenix, AZ, United StatesHQ recorded Oct 7, 2026	1,001-5,000	1,629 contacts →
	Exact match “Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
4	Montrose Environmental Group	Exact match	Little Rock, AR, United StatesHQ recorded Oct 7, 2026	1,001-5,000	1,529 contacts →
	Exact match “Onterris (formerly Montrose Environmental Group) was one of the first to see environmental responsibility as not just an imperative but as a strategic asset.” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
5	Adec Innovations	Exact match	Irvine, CA, United StatesHQ recorded Oct 7, 2026	1,001-5,000	1,304 contacts →
	Exact match “ADEC Innovations seamlessly delivers fully integrated, cost-effective industry expertise, business process & data management, and software services.” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
6	Inerco	Exact match	Seville, SpainHQ recorded Oct 7, 2026	1,001-5,000	688 contacts →
	Exact match “INERCO, with 30 years of experience, offers comprehensive services and develops advanced technologies that contribute to sustainable industrial development, acting as a leader in…” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
7	Ricardo PLC	Exact match	London, United KingdomHQ recorded Oct 7, 2026	1,001-5,000	670 contacts →
	Exact match “Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
8	Antea Group USA	Exact match	St. Paul, MN, United StatesHQ recorded Oct 7, 2026	1,001-5,000	658 contacts →
	Exact match “Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, health and safety, and…” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
9	ACT Group	Exact match	Amsterdam, NetherlandsHQ recorded Oct 7, 2026	501-1,000	556 contacts →
	Exact match “As the leading environmental solutions partner for organizations globally, ACT helps its partners meet increasing environmental action and disclosure expectations from regulators…” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
10	ADP Consulting	Exact match	Melbourne, AustraliaHQ recorded Oct 7, 2026	201-500	468 contacts →
	Exact match “ADP Consulting, an Ayesa company, is a sustainability-led engineering consultancy on a quest to inspire a better world through influence and design.” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
11	ROUX	Exact match	Islandia, NY, United StatesHQ recorded Oct 7, 2026	201-500	433 contacts →
	Exact match “Founded 40 years ago, Roux is recognized for being a highly effective, client-focused environmental consulting and management firm.” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
12	SIPL	Exact match	Noida, IndiaHQ recorded Oct 7, 2026	n/a	400 contacts →
	Exact match “SIPL Pvt Ltd is an established and reputed firm in the Sustainable domain since 2008.” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
13	Greenflex	Exact match	Paris, FranceHQ recorded Oct 7, 2026	501-1,000	390 contacts →
	Exact match “Since 2009, GreenFlex has been a key partner in the energy, environmental and societal transformation of organizations, enabling them to change their trajectory towards an economy…” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
14	Climatepartner	Exact match	Munich, GermanyHQ recorded Oct 7, 2026	501-1,000	376 contacts →
	Exact match “ClimatePartner makes climate action valuable for every company at any stage of their journey.” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
15	EMM Consulting PTY Limited	Exact match	St Leonards, AustraliaHQ recorded Oct 7, 2026	201-500	361 contacts →
	Exact match “At EMM, we believe that a sustainable future is achievable, and we are dedicated to helping our clients and the community make it a reality.” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
16	Valpak Limited	Exact match	Stratford-upon-avon, United KingdomHQ recorded Oct 7, 2026	201-500	347 contacts →
	Exact match “Valpak, a Reconomy brand, is an EcoVadis Platinum certified leader in environmental compliance, recycling, and sustainability solutions.” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
17	Anthesis ESP	Exact match	Manlleu, SpainHQ recorded Oct 7, 2026	201-500	337 contacts →
	Exact match “Som una empresa especialitzada en sostenibilitat, aliada amb les organitzacions, territoris i persones compromesos amb un món més sostenible, als quals acompanyem en la seva…” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
18	NUS Consulting Group	Exact match	Park Ridge, NJ, United StatesHQ recorded Oct 7, 2026	201-500	336 contacts →
	Exact match “National Utility Service, Inc.” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
19	Umwelt Environmental & Social Consultants	Exact match	Teralba, AustraliaHQ recorded Oct 7, 2026	201-500	329 contacts →
	Exact match “Umwelt has been trusted by clients and communities for over 30 years.” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
20	Quantis	Exact match	Lausanne, SwitzerlandHQ recorded Oct 7, 2026	201-500	325 contacts →
	Exact match “Quantis, part of BCG, is a sustainability consulting firm that helps organizations translate sustainability ambition into measurable business value.” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
21	Environmental Consulting & Technology, Inc. ECT	Exact match	Gainesville, FL, United StatesHQ recorded Oct 7, 2026	201-500	305 contacts →
	Exact match “Environmental Consulting & Technology, Inc.(ECT) is a multi-disciplinary environmental and sustainability consulting firm delivering strategy, permitting, design, and management…” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
22	Robbins-Gioia, LLC	Exact match	Alexandria, VA, United StatesHQ recorded Oct 7, 2026	51-200	303 contacts →
	Exact match “Optimize and modernize depot planning and scheduling to improve utilization, throughput and readiness now and in the future.#FutureReadinessToday” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
23	Cascade Energy	Exact match	Portland, OR, United StatesHQ recorded Oct 7, 2026	201-500	288 contacts →
	Exact match “At Cascade Energy, we believe in better.” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
24	Ingeva	Exact match	Boulogne-billancourt, FranceHQ recorded Oct 7, 2026	201-500	281 contacts →
	Exact match “Fondée en 2014, INGEVA est une société spécialisée dans l'ingénierie de la mobilité durable.” Recorded in the RevenueBase company graph · Oct 7, 2026 · View company records in RevenueBase
25	Eodd Ingénieurs Conseils	Exact match	Villeurbanne, FranceHQ recorded Oct 7, 2026	201-500	278 contacts →
	Exact match “Créé en 1991, reconnu comme l’un des meilleurs cabinets français spécialiste de la transformation écologique, EODD ingénieurs conseils apporte sa vision transversale et ses…” Recorded in the RevenueBase company graph · Oct 7, 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 “aviation sustainability 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 11,466 aviation sustainability consultants worldwide

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Aviation sustainability consultants worldwide at a glance

As of Oct 7, 2026

32.8%Verified-email coverage

8.5Average contacts per company

1-10Median size (employees)

2.3%Largest-city concentration · London

Oct 7, 2026Page data refreshed

Companies by employee count

1-10

8,413

11-50

2,470

51-200

417

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 aviation sustainability consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “aviation sustainability 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 32,091 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 October 7, 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.

Aviation sustainability consultants by location

73 lists · largest first

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

How many aviation sustainability consultants are there worldwide?

RevenueBase identified 11,466 company matches for aviation sustainability consultants worldwide as of October 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?

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

Which country has the most aviation sustainability consultants?

Brazil leads with 1,292 companies, followed by the United States (1,242) and the United Kingdom (810). Every aviation sustainability consultants list by country and city is linked on this page.

Which city has the most aviation sustainability consultants?

London leads with 265 company records, followed by Sao Paulo (192) and Paris (116).

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 32,091 professional contacts with verified work emails tracked across these 11,466 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 October 7, 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.