Company lists · Data refreshed August 2026
Top 25 Climate change consulting firms based in the United States
RevenueBase identified 2,563 company matches for climate change consulting firms associated with the United States as of August 2026 and tracks 59,828 professional contacts across them, including 29,270 with verified work emails and 23,315 with mobile numbers. New York is the largest hub.
This list covers company matches for climate change consulting firms 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 August 31, 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 climate change consulting firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,183 contacts → | ||||
Exact match “Golder was acquired by WSP.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 2 | 2,644 contacts → | ||||
Exact match “APTIM enhances the quality of the environment, wellbeing of people, resilience of communities, and opportunity for employees to make a difference, not just a living.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 3 | 2,392 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 4 | 2,198 contacts → | ||||
Exact match “Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 5 | 2,111 contacts → | ||||
Exact match “Ricardo, a member of @WSP, is a global strategic, environmental, and engineering consulting company.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 6 | 2,105 contacts → | ||||
Exact match “As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 7 | 1,618 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 · Aug 31, 2026 · View company records in RevenueBase | |||||
| 8 | 1,516 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 · Aug 31, 2026 · View company records in RevenueBase | |||||
| 9 | 1,146 contacts → | ||||
Exact match “Who is Apex?” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 10 | 1,128 contacts → | ||||
Exact match “Haley & Aldrich is committed to solving our clients’ most meaningful challenges in the built and natural environments.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 11 | 1,127 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 12 | 1,054 contacts → | ||||
Exact match “At Braun Intertec, we work at the intersection of the natural and built environments, combining science, technology, and engineering.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 13 | 949 contacts → | ||||
Exact match “Trinity Consultants is a global team of experts helping organizations solve complex challenges in environmental compliance, ecological protection, infrastructure performance, and…” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 14 | 792 contacts → | ||||
Exact match “Dudek is an environmental, planning, and engineering consulting firm.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 15 | 790 contacts → | ||||
Exact match “By combining science, engineering, and technology with a true collaborative spirit, Foth has delivered innovative solutions to our clients since 1938.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 16 | 725 contacts → | ||||
Exact match “ESA is a 100% employee-owned environmental consulting firm.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 17 | 682 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 · Aug 31, 2026 · View company records in RevenueBase | |||||
| 18 | 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 · Aug 31, 2026 · View company records in RevenueBase | |||||
| 19 | 530 contacts → | ||||
Exact match “For 35 years we have been helping investors, lenders, owners, developers, contractors, and property managers reduce risk and optimize their built facilities, infrastructure and…” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 20 | 483 contacts → | ||||
Exact match “Rincon Consultants is a multi-disciplinary environmental sciences, planning, and engineering consulting firm that provides quality professional services to government and industry.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 21 | 478 contacts → | ||||
Exact match “Headquartered in Seattle, Washington, Anchor QEA is a nationally recognized environmental science and engineering consulting firm specializing in aquatic, shoreline, and water…” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 22 | 452 contacts → | ||||
Exact match “We are Groundwater & Environmental Services, Inc, better known as GES.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 23 | 435 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 · Aug 31, 2026 · View company records in RevenueBase | |||||
| 24 | 382 contacts → | ||||
Exact match “We are Trio – built from Edison Energy, Alfa Energy, and Altenex Energy.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 25 | 370 contacts → | ||||
Exact match “P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.” Recorded in the RevenueBase company graph · Aug 31, 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 “climate change consulting firms”. 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 2,563 climate change consulting firms based in the United States
See the full list, filter by size, metro and specialty, and access 29,270 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Climate change consulting firms based in the United States at a glance
As of Aug 31, 2026Companies by employee count
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 “climate change consulting 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. 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 29,270 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 August 31, 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.
Climate change consulting firms by metro
- Climate change consulting firms in New York138
- Climate change consulting firms in Washington98
- Climate change consulting firms in Houston69
- Climate change consulting firms in San Francisco68
- Climate change consulting firms in Chicago54
- Climate change consulting firms in Seattle49
- Climate change consulting firms in Los Angeles47
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 “climate change consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many climate change consulting firms are there based in the United States?
RevenueBase identified 2,563 company matches for climate change consulting firms associated with the United States as of August 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?
Golder tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most climate change consulting firms?
New York leads with 138 company records, followed by Washington (98) and Houston (69).
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 29,270 professional contacts with verified work emails tracked across these 2,563 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 August 31, 2026.
Ready to reach these companies? Verified emails and direct dials for all 2,563 climate change consulting firms based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Climate change consulting firms by geography
- Climate change consulting firms based in Brazil
- Climate change consulting firms based in the United Kingdom
- Climate change consulting firms based in France
- Climate change consulting firms based in Canada
- Climate change consulting firms based in Australia
- Climate change consulting firms based in Germany
- Climate change consulting firms based in Spain
- Climate change consulting firms based in the Netherlands
- Climate change consulting firms based in Italy
- Climate change consulting firms based in Mexico
- Climate change consulting firms based in South Africa
- Climate change consulting firms based in Switzerland
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
- Climate change consulting firms based in Brazil
- Climate change consulting firms based in the United Kingdom
- Climate change consulting firms based in France
- Climate change consulting firms based in Canada
- Climate change consulting firms based in Australia
- Climate change consulting firms based in Germany
Company intelligence · public preview
Top 25 climate change consulting firms 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 2,563 matching company records for climate change consulting firms based in the United States, with 59,828 tracked contacts and 29,270 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: August 31, 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 climate change consulting firms 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 |  Goldergolder.comHQ: HQ not recorded; location: Houston, TX, United StatesReported employees: 5,001-10,000 | HQ not recorded; location: Houston, TX, United States | 5,001-10,000 | Exact match | 3,183 contacts → |
“Golder was acquired by WSP.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  APTIMaptim.comHQ: HQ not recorded; location: Wichita, KS, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Wichita, KS, United States | 1,001-5,000 | Exact match | 2,644 contacts → |
“APTIM enhances the quality of the environment, wellbeing of people, resilience of communities, and opportunity for employees to make a difference, not just a living.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Geosyntec Consultantsgeosyntec.comHQ: HQ not recorded; location: Boca Raton, FL, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Boca Raton, FL, United States | 1,001-5,000 | Exact match | 2,392 contacts → |
“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…” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Baringabaringa.comHQ: HQ not recorded; location: New York, NY, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: New York, NY, United States | 1,001-5,000 | Exact match | 2,198 contacts → |
“Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Ricardoricardo.comHQ: HQ not recorded; location: California, MD, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: California, MD, United States | 1,001-5,000 | Exact match | 2,111 contacts → |
“Ricardo, a member of @WSP, is a global strategic, environmental, and engineering consulting company.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Hazen And Sawyerhazenandsawyer.comHQ: HQ not recorded; location: Raleigh, NC, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Raleigh, NC, United States | 1,001-5,000 | Exact match | 2,105 contacts → |
“As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Swca Environmental Consultantsswca.comHQ: HQ not recorded; location: Phoenix, AZ, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Phoenix, AZ, United States | 1,001-5,000 | Exact match | 1,618 contacts → |
“Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Montrose Environmental Grouponterris.comHQ: HQ not recorded; location: Little Rock, AR, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Little Rock, AR, United States | 1,001-5,000 | Exact match | 1,516 contacts → |
“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 description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Apex Companiesapexcos.comHQ: HQ not recorded; location: Rockville, MD, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Rockville, MD, United States | 1,001-5,000 | Exact match | 1,146 contacts → |
“Who is Apex?” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Haley & Aldrichhaleyaldrich.comHQ: HQ not recorded; location: Burlington, MA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Burlington, MA, United States | 501-1,000 | Exact match | 1,128 contacts → |
“Haley & Aldrich is committed to solving our clients’ most meaningful challenges in the built and natural environments.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Verdantasverdantas.comHQ: HQ not recorded; location: Toledo, OH, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Toledo, OH, United States | 1,001-5,000 | Exact match | 1,127 contacts → |
“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.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Braun Intertec Corporationbraunintertec.comHQ: HQ not recorded; location: Amarillo, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Amarillo, TX, United States | 1,001-5,000 | Exact match | 1,054 contacts → |
“At Braun Intertec, we work at the intersection of the natural and built environments, combining science, technology, and engineering.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Trinity Consultantstrinityconsultants.comHQ: HQ not recorded; location: Dallas, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Dallas, TX, United States | 1,001-5,000 | Exact match | 949 contacts → |
“Trinity Consultants is a global team of experts helping organizations solve complex challenges in environmental compliance, ecological protection, infrastructure performance, and…” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  DUDEKdudek.comHQ: HQ not recorded; location: Encinitas, CA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Encinitas, CA, United States | 501-1,000 | Exact match | 792 contacts → |
“Dudek is an environmental, planning, and engineering consulting firm.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  The Foth Companiesfoth.comHQ: HQ not recorded; location: Marion, MA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Marion, MA, United States | 501-1,000 | Exact match | 790 contacts → |
“By combining science, engineering, and technology with a true collaborative spirit, Foth has delivered innovative solutions to our clients since 1938.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Environmental Science Associatesesassoc.comHQ: HQ not recorded; location: Petaluma, CA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Petaluma, CA, United States | 501-1,000 | Exact match | 725 contacts → |
“ESA is a 100% employee-owned environmental consulting firm.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Inercoinerco.comHQ: HQ not recorded; location: Delaware, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Delaware, United States | 1,001-5,000 | Exact match | 682 contacts → |
“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 description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Antea Group USAanteagroup.comHQ: HQ not recorded; location: White Plains, NY, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: White Plains, NY, United States | 1,001-5,000 | Exact match | 658 contacts → |
“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 description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  EBI Consultingebiconsulting.comHQ: HQ not recorded; location: Springfield Township, PA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Springfield Township, PA, United States | 501-1,000 | Exact match | 530 contacts → |
“For 35 years we have been helping investors, lenders, owners, developers, contractors, and property managers reduce risk and optimize their built facilities, infrastructure and…” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Rincon Consultantsrinconconsultants.comHQ: HQ not recorded; location: San Diego, CA, United StatesReported employees: 501-1,000 | HQ not recorded; location: San Diego, CA, United States | 501-1,000 | Exact match | 483 contacts → |
“Rincon Consultants is a multi-disciplinary environmental sciences, planning, and engineering consulting firm that provides quality professional services to government and industry.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Anchor QEAanchorqea.comHQ: HQ not recorded; location: Columbia, MD, United StatesReported employees: 501-1,000 | HQ not recorded; location: Columbia, MD, United States | 501-1,000 | Exact match | 478 contacts → |
“Headquartered in Seattle, Washington, Anchor QEA is a nationally recognized environmental science and engineering consulting firm specializing in aquatic, shoreline, and water…” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Groundwater & Environmental Services, INCgesonline.comHQ: HQ not recorded; location: Amherst, NY, United StatesReported employees: 201-500 | HQ not recorded; location: Amherst, NY, United States | 201-500 | Exact match | 452 contacts → |
“We are Groundwater & Environmental Services, Inc, better known as GES.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  ROUXrouxinc.comHQ: HQ not recorded; location: Houston, TX, United StatesReported employees: 201-500 | HQ not recorded; location: Houston, TX, United States | 201-500 | Exact match | 435 contacts → |
“Founded 40 years ago, Roux is recognized for being a highly effective, client-focused environmental consulting and management firm.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  TRIOtrioadvisory.comHQ: HQ not recorded; location: Mclean, VA, United StatesReported employees: 201-500 | HQ not recorded; location: Mclean, VA, United States | 201-500 | Exact match | 382 contacts → |
“We are Trio – built from Edison Energy, Alfa Energy, and Altenex Energy.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  P2sp2sinc.comHQ: HQ not recorded; location: Irvine, CA, United StatesReported employees: 201-500 | HQ not recorded; location: Irvine, CA, United States | 201-500 | Exact match | 370 contacts → |
“P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,563 company matches
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Climate change consulting firms: dataset insights
August 31, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
2,554 records in the displayed employee bands.
9 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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: August 31, 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 ↗
Climate change consulting firms by metro
- Climate change consulting firms in New York138
- Climate change consulting firms in Washington98
- Climate change consulting firms in Houston69
- Climate change consulting firms in San Francisco68
- Climate change consulting firms in Chicago54
- Climate change consulting firms in Seattle49
- Climate change consulting firms in Los Angeles47
Questions about this company list
What does Exact match mean for climate change consulting firms?
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 climate change consulting firms did RevenueBase find based in the United States?
The saved snapshot records 2,563 matching company records, 59,828 tracked contacts and 29,270 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: August 31, 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
Climate change consulting firms by geography
- Climate change consulting firms based in Brazil
- Climate change consulting firms based in the United Kingdom
- Climate change consulting firms based in France
- Climate change consulting firms based in Canada
- Climate change consulting firms based in Australia
- Climate change consulting firms based in Germany
- Climate change consulting firms based in Spain
- Climate change consulting firms based in the Netherlands
- Climate change consulting firms based in Italy
- Climate change consulting firms based in Mexico
- Climate change consulting firms based in South Africa
- Climate change consulting firms based in Switzerland
Cite this list
RevenueBase Data Team. Top 25 climate change consulting firms based in the United States. Snapshot: August 31, 2026. https://revenuebase.ai/companies/climate-change-consulting-firms/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
- Climate change consulting firms based in Brazil
- Climate change consulting firms based in the United Kingdom
- Climate change consulting firms based in France
- Climate change consulting firms based in Canada
- Climate change consulting firms based in Australia
- Climate change consulting firms based in Germany
Company intelligence · public preview
Top 25 climate change consulting firms based in the United States
RevenueBase records 2,563 matching company records for climate change consulting firms based in the United States, with 59,828 tracked contacts and 29,270 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: August 31, 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 climate change consulting firms 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 | Goldergolder.com HQ: HQ not recorded; location: Houston, TX, United StatesReported employees: 5,001-10,000 | HQ not recorded; location: Houston, TX, United States | 5,001-10,000 | Exact match | 3,183 contacts → |
“Golder was acquired by WSP.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | APTIMaptim.com HQ: HQ not recorded; location: Wichita, KS, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Wichita, KS, United States | 1,001-5,000 | Exact match | 2,644 contacts → |
“APTIM enhances the quality of the environment, wellbeing of people, resilience of communities, and opportunity for employees to make a difference, not just a living.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Geosyntec Consultantsgeosyntec.com HQ: HQ not recorded; location: Boca Raton, FL, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Boca Raton, FL, United States | 1,001-5,000 | Exact match | 2,392 contacts → |
“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…” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Baringabaringa.com HQ: HQ not recorded; location: New York, NY, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: New York, NY, United States | 1,001-5,000 | Exact match | 2,198 contacts → |
“Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Ricardoricardo.com HQ: HQ not recorded; location: California, MD, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: California, MD, United States | 1,001-5,000 | Exact match | 2,111 contacts → |
“Ricardo, a member of @WSP, is a global strategic, environmental, and engineering consulting company.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Hazen And Sawyerhazenandsawyer.com HQ: HQ not recorded; location: Raleigh, NC, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Raleigh, NC, United States | 1,001-5,000 | Exact match | 2,105 contacts → |
“As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Swca Environmental Consultantsswca.com HQ: HQ not recorded; location: Phoenix, AZ, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Phoenix, AZ, United States | 1,001-5,000 | Exact match | 1,618 contacts → |
“Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Montrose Environmental Grouponterris.com HQ: HQ not recorded; location: Little Rock, AR, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Little Rock, AR, United States | 1,001-5,000 | Exact match | 1,516 contacts → |
“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 description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Apex Companiesapexcos.com HQ: HQ not recorded; location: Rockville, MD, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Rockville, MD, United States | 1,001-5,000 | Exact match | 1,146 contacts → |
“Who is Apex?” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Haley & Aldrichhaleyaldrich.com HQ: HQ not recorded; location: Burlington, MA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Burlington, MA, United States | 501-1,000 | Exact match | 1,128 contacts → |
“Haley & Aldrich is committed to solving our clients’ most meaningful challenges in the built and natural environments.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Verdantasverdantas.com HQ: HQ not recorded; location: Toledo, OH, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Toledo, OH, United States | 1,001-5,000 | Exact match | 1,127 contacts → |
“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.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Braun Intertec Corporationbraunintertec.com HQ: HQ not recorded; location: Amarillo, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Amarillo, TX, United States | 1,001-5,000 | Exact match | 1,054 contacts → |
“At Braun Intertec, we work at the intersection of the natural and built environments, combining science, technology, and engineering.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Trinity Consultantstrinityconsultants.com HQ: HQ not recorded; location: Dallas, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Dallas, TX, United States | 1,001-5,000 | Exact match | 949 contacts → |
“Trinity Consultants is a global team of experts helping organizations solve complex challenges in environmental compliance, ecological protection, infrastructure performance, and…” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | DUDEKdudek.com HQ: HQ not recorded; location: Encinitas, CA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Encinitas, CA, United States | 501-1,000 | Exact match | 792 contacts → |
“Dudek is an environmental, planning, and engineering consulting firm.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | The Foth Companiesfoth.com HQ: HQ not recorded; location: Marion, MA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Marion, MA, United States | 501-1,000 | Exact match | 790 contacts → |
“By combining science, engineering, and technology with a true collaborative spirit, Foth has delivered innovative solutions to our clients since 1938.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Environmental Science Associatesesassoc.com HQ: HQ not recorded; location: Petaluma, CA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Petaluma, CA, United States | 501-1,000 | Exact match | 725 contacts → |
“ESA is a 100% employee-owned environmental consulting firm.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Inercoinerco.com HQ: HQ not recorded; location: Delaware, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Delaware, United States | 1,001-5,000 | Exact match | 682 contacts → |
“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 description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Antea Group USAanteagroup.com HQ: HQ not recorded; location: White Plains, NY, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: White Plains, NY, United States | 1,001-5,000 | Exact match | 658 contacts → |
“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 description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | EBI Consultingebiconsulting.com HQ: HQ not recorded; location: Springfield Township, PA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Springfield Township, PA, United States | 501-1,000 | Exact match | 530 contacts → |
“For 35 years we have been helping investors, lenders, owners, developers, contractors, and property managers reduce risk and optimize their built facilities, infrastructure and…” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Rincon Consultantsrinconconsultants.com HQ: HQ not recorded; location: San Diego, CA, United StatesReported employees: 501-1,000 | HQ not recorded; location: San Diego, CA, United States | 501-1,000 | Exact match | 483 contacts → |
“Rincon Consultants is a multi-disciplinary environmental sciences, planning, and engineering consulting firm that provides quality professional services to government and industry.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Anchor QEAanchorqea.com HQ: HQ not recorded; location: Columbia, MD, United StatesReported employees: 501-1,000 | HQ not recorded; location: Columbia, MD, United States | 501-1,000 | Exact match | 478 contacts → |
“Headquartered in Seattle, Washington, Anchor QEA is a nationally recognized environmental science and engineering consulting firm specializing in aquatic, shoreline, and water…” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Groundwater & Environmental Services, INCgesonline.com HQ: HQ not recorded; location: Amherst, NY, United StatesReported employees: 201-500 | HQ not recorded; location: Amherst, NY, United States | 201-500 | Exact match | 452 contacts → |
“We are Groundwater & Environmental Services, Inc, better known as GES.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | ROUXrouxinc.com HQ: HQ not recorded; location: Houston, TX, United StatesReported employees: 201-500 | HQ not recorded; location: Houston, TX, United States | 201-500 | Exact match | 435 contacts → |
“Founded 40 years ago, Roux is recognized for being a highly effective, client-focused environmental consulting and management firm.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | TRIOtrioadvisory.com HQ: HQ not recorded; location: Mclean, VA, United StatesReported employees: 201-500 | HQ not recorded; location: Mclean, VA, United States | 201-500 | Exact match | 382 contacts → |
“We are Trio – built from Edison Energy, Alfa Energy, and Altenex Energy.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | P2sp2sinc.com HQ: HQ not recorded; location: Irvine, CA, United StatesReported employees: 201-500 | HQ not recorded; location: Irvine, CA, United States | 201-500 | Exact match | 370 contacts → |
“P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,563 company matches
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Climate change consulting firms: dataset insights
August 31, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
2,554 records in the displayed employee bands.
9 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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: August 31, 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 ↗
Climate change consulting firms by metro
- Climate change consulting firms in New York138
- Climate change consulting firms in Washington98
- Climate change consulting firms in Houston69
- Climate change consulting firms in San Francisco68
- Climate change consulting firms in Chicago54
- Climate change consulting firms in Seattle49
- Climate change consulting firms in Los Angeles47
Questions about this company list
What does Exact match mean for climate change consulting firms?
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 climate change consulting firms did RevenueBase find based in the United States?
The saved snapshot records 2,563 matching company records, 59,828 tracked contacts and 29,270 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: August 31, 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
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Cite this list
RevenueBase Data Team. Top 25 climate change consulting firms based in the United States. Snapshot: August 31, 2026. https://revenuebase.ai/companies/climate-change-consulting-firms/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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