Company lists · Data refreshed September 2026
Top 25 Aviation environmental consulting companies worldwide
RevenueBase identified 11,826 aviation environmental consulting companies worldwide as of September 2026 and tracks 182,211 professional contacts across them, including 73,641 with verified work emails and 0 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.
This list covers aviation environmental consulting companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026. Country and city lists for aviation environmental consulting companies follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 aviation environmental consulting companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 28,416 contacts → | ||||
Indirect evidence “Stantec empowers clients, people, and communities to rise to the world’s greatest challenges at a time when the world faces more unprecedented concerns than ever before.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,167 contacts → | ||||
Indirect evidence “Golder was acquired by WSP.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,393 contacts → | ||||
Strong evidence “Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,145 contacts → | ||||
Strong evidence “Civil & Environmental Consultants, Inc.(CEC) provides comprehensive market-oriented consulting services that advance the strategic business objectives of its clients.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,629 contacts → | ||||
Strong evidence “Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,529 contacts → | ||||
Partial evidence “Onterris (formerly Montrose Environmental Group) was one of the first to see environmental responsibility as not just an imperative but as a strategic asset.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,255 contacts → | ||||
Partial evidence “RSK Group is a global leader in the delivery of environmental and engineering solutions.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,176 contacts → | ||||
Indirect evidence “Miljø er vores kernekompetence og vores ansvar.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,139 contacts → | ||||
Partial evidence “At Verdantas, we blend engineering and environmental science together with advanced technology and world-renowned labs to create solutions with the big picture in mind.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1,137 contacts → | ||||
Indirect evidence “Who is Apex?” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,088 contacts → | ||||
Strong evidence “Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1,065 contacts → | ||||
Partial evidence “At Braun Intertec, we work at the intersection of the natural and built environments, combining science, technology, and engineering.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 961 contacts → | ||||
Partial evidence “Trinity Consultants is a global team of experts helping organizations solve complex challenges in environmental compliance, ecological protection, infrastructure performance, and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 956 contacts → | ||||
Partial evidence “Alliance is a new kind of environmental services company-powered by innovation, focused on service, and committed to client success.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 865 contacts → | ||||
Indirect evidence “ATC Group Services LLC is now Atlas.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 807 contacts → | ||||
Strong evidence “We are Pares & Alvarez, our extensive experience and the recognition of our clients makes us one of the leading Engineering Companies in environmental, consulting, engineering and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 795 contacts → | ||||
Strong evidence “Dudek is an environmental, planning, and engineering consulting firm.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 783 contacts → | ||||
Indirect evidence “Somos una empresa sólida, confiable, orientada al cliente; líder en el manejo ambiental, con procesos de calidad, tecnología y recursos humanos competentes.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 781 contacts → | ||||
Indirect evidence “By combining science, engineering, and technology with a true collaborative spirit, Foth has delivered innovative solutions to our clients since 1938.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 737 contacts → | ||||
Partial evidence “We are a leading global climate and performance engineering consulting firm dedicated to creating harmony between the built and natural world.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 732 contacts → | ||||
Strong evidence “ESA is a 100% employee-owned environmental consulting firm.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 709 contacts → | ||||
Indirect evidence “Over six decades offering our consultancy services locally and internationally, based on ethical principles and commitments, always through honest, socially responsible actions…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 688 contacts → | ||||
Indirect evidence “INERCO, with 30 years of experience, offers comprehensive services and develops advanced technologies that contribute to sustainable industrial development, acting as a leader in…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 670 contacts → | ||||
Indirect evidence “Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 658 contacts → | ||||
Strong evidence “Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, health and safety, and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: aviation environmental consulting companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names aviation environmental consulting companies.
- Partial evidence
- Its own public description names part of aviation environmental consulting companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name aviation environmental consulting companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 11,826 aviation environmental consulting companies worldwide
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Aviation environmental consulting companies worldwide at a glance
As of Sep 16, 2026Companies by employee count
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among aviation environmental consulting companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- 36 countries, largest first: the United States, Brazil, the United Kingdom, Canada, India, France, Australia, Spain, Italy, Türkiye and 26 more. Country and city lists for aviation environmental consulting companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “aviation environmental consulting companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names aviation environmental consulting companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among aviation environmental consulting companies, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 73,641 across the full list. 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.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Aviation environmental consulting companies by location
62 lists · largest firstEvery Aviation environmental consulting companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Aviation environmental consulting companies based in the United States2,781
- Aviation environmental consulting companies based in Brazil2,155
- Aviation environmental consulting companies based in the United Kingdom656
- Aviation environmental consulting companies based in Canada567
- Aviation environmental consulting companies based in India492
- Aviation environmental consulting companies based in France482
- Aviation environmental consulting companies based in Australia481
- Aviation environmental consulting companies based in Spain416
- Aviation environmental consulting companies based in Italy326
- Aviation environmental consulting companies based in Türkiye319
- Aviation environmental consulting companies based in Chile285
- Aviation environmental consulting companies based in Mexico257
- Aviation environmental consulting companies based in South Africa248
- Aviation environmental consulting companies based in Colombia243
- Aviation environmental consulting companies based in Germany227
- Aviation environmental consulting companies based in Argentina182
- Aviation environmental consulting companies based in Peru164
- Aviation environmental consulting companies based in Sweden155
- Aviation environmental consulting companies based in the Netherlands143
- Aviation environmental consulting companies based in Indonesia134
- Aviation environmental consulting companies based in the United Arab Emirates131
- Aviation environmental consulting companies based in Saudi Arabia101
- Aviation environmental consulting companies based in Switzerland94
- Aviation environmental consulting companies based in Nigeria86
- Aviation environmental consulting companies based in Portugal81
- Aviation environmental consulting companies based in Ecuador80
- Aviation environmental consulting companies based in Poland80
- Aviation environmental consulting companies based in Belgium77
- Aviation environmental consulting companies based in Greece75
- Aviation environmental consulting companies based in Malaysia58
- Aviation environmental consulting companies based in New Zealand54
- Aviation environmental consulting companies based in Ireland52
- Aviation environmental consulting companies based in Romania47
- Aviation environmental consulting companies based in Denmark43
- Aviation environmental consulting companies based in Austria28
- Aviation environmental consulting companies based in Finland26
Cities
- Aviation environmental consulting companies based in Sao Paulo, Brazil252
- Aviation environmental consulting companies based in Belo Horizonte, Brazil123
- Aviation environmental consulting companies based in Rio De Janeiro, Brazil109
- Aviation environmental consulting companies based in Curitiba, Brazil83
- Aviation environmental consulting companies based in Calgary, Canada68
- Aviation environmental consulting companies based in Houston, United States62
- Aviation environmental consulting companies based in Porto Alegre, Brazil54
- Aviation environmental consulting companies based in New Delhi, India43
- Aviation environmental consulting companies based in Sydney, Australia43
- Aviation environmental consulting companies based in Campinas, Brazil42
- Aviation environmental consulting companies based in New York, United States42
- Aviation environmental consulting companies based in Toronto, Canada41
- Aviation environmental consulting companies based in Melbourne, Australia40
- Aviation environmental consulting companies based in Montreal, Canada39
- Aviation environmental consulting companies based in Perth, Australia37
- Aviation environmental consulting companies based in Brisbane, Australia35
- Aviation environmental consulting companies based in Mumbai, India35
- Aviation environmental consulting companies based in Vancouver, Canada35
- Aviation environmental consulting companies based in Austin, United States34
- Aviation environmental consulting companies based in Miami, United States32
- Aviation environmental consulting companies based in Chicago, United States31
- Aviation environmental consulting companies based in Atlanta, United States28
- Aviation environmental consulting companies based in Seattle, United States27
- Aviation environmental consulting companies based in Los Angeles, United States26
- Aviation environmental consulting companies based in Washington, United States26
- Aviation environmental consulting companies based in Denver, United States25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names aviation environmental consulting companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many aviation environmental consulting companies are there worldwide?
RevenueBase identified 11,826 aviation environmental consulting companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Stantec, headquartered in Edmonton, tops this list with the largest team on record.
Which country has the most aviation environmental consulting companies?
The United States leads with 2,781 companies, followed by Brazil (2,155) and the United Kingdom (656). Every aviation environmental consulting companies list by country and city is linked on this page.
Which city has the most aviation environmental consulting companies?
Sao Paulo leads with 252 headquartered companies, followed by London (134) and Belo Horizonte (123).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 73,641 verified decision-maker contacts tracked across these 11,826 companies.
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.
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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 Smart Search, 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.