Company lists · Data refreshed August 2026

Top 25 Climate resilience consulting firms based in the United States

Name: Climate resilience consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 1,962 companies tracked

RevenueBase identified 1,962 company matches for climate resilience consulting firms associated with the United States as of August 2026 and tracks 75,858 professional contacts across them, including 39,237 with verified work emails and 30,359 with mobile numbers. New York is the largest hub.

This list covers company matches for climate resilience 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Aug 31, 2026 How this list was built

1,962Companies

75,858Contacts tracked

39,237Verified emails

30,359Mobile numbers

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The 25 largest climate resilience consulting firms based in the United States

Ranked by team size

Top 25 of 1,962 company matches for climate resilience consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Aug 31, 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	Tetra Tech	Exact match	Pasadena, CA, United States	10001+	13,066 contacts →
	Exact match “Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
2	WSP In The U.S	Exact match	New York, NY, United States	10001+	9,318 contacts →
	Exact match “What if you could shape built and natural environments – and the future of those that use them?” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
3	APTIM	Exact match	Wichita, KS, United States	1,001-5,000	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
4	Geosyntec Consultants	Exact match	Boca Raton, FL, United States	1,001-5,000	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
5	Baringa	Exact match	New York, NY, United States	1,001-5,000	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
6	Ricardo	Exact match	California, MD, United States	1,001-5,000	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
7	Hazen And Sawyer	Exact match	Raleigh, NC, United States	1,001-5,000	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
8	Jensen Hughes	Exact match	Greenville, SC, United States	1,001-5,000	1,642 contacts →
	Exact match “Worldwide, we are most recognized for our leadership in fire protection engineering, a tradition of responsibility we have advanced with pride since 1939.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
9	Swca Environmental Consultants	Exact match	Phoenix, AZ, United States	1,001-5,000	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
10	Pennoni	Exact match	Haddon Heights, NJ, United States	1,001-5,000	1,255 contacts →
	Exact match “Since our founding more than five decades ago, our clients trust Pennoni’s commitment to elevating the impact of projects on our communities.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
11	Ardurra	Exact match	Flagstaff, AZ, United States	1,001-5,000	1,248 contacts →
	Exact match “Expertly balancing experience and innovation to deliver unique solutions to public and private clients.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
12	IEM	Exact match	Baton Rouge, LA, United States	501-1,000	1,173 contacts →
	Exact match “IEM is a professional services firm dedicated to building a safe, secure, and resilient world.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
13	Apex Companies	Exact match	Rockville, MD, United States	1,001-5,000	1,146 contacts →
	Exact match “Who is Apex?” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
14	Haley & Aldrich	Exact match	Burlington, MA, United States	501-1,000	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
15	Verdantas	Exact match	Toledo, OH, United States	1,001-5,000	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
16	Braun Intertec Corporation	Exact match	Amarillo, TX, United States	1,001-5,000	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
17	Trinity Consultants	Exact match	Dallas, TX, United States	1,001-5,000	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
18	Psomas	Exact match	Santa Ana, CA, United States	501-1,000	741 contacts →
	Exact match “Our award-winning projects are produced through innovation, creativity, and technical expertise.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
19	Environmental Science Associates	Exact match	Petaluma, CA, United States	501-1,000	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
20	Tighe & Bond	Exact match	Portland, ME, United States	501-1,000	638 contacts →
	Exact match “Tighe & Bond is the Northeast’s leading engineering, environmental, planning, and design consulting firm.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
21	MSA Professional Services	Exact match	Baraboo, WI, United States	501-1,000	598 contacts →
	Exact match “As a full-service consulting firm, MSA Professional Services (MSA) is all about creating communities that work.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
22	Rincon Consultants	Exact match	San Diego, CA, United States	501-1,000	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
23	Anchor QEA	Exact match	Columbia, MD, United States	501-1,000	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
24	MBP Mcdonough Bolyard Peck	Exact match	Charleston, SC, United States	201-500	472 contacts →
	Exact match “MBP is a multi-disciplined consulting firm that provides a broad range of professional services designed to mitigate risk and optimize value within the built environment.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase
25	Hagerty Consulting	Exact match	Tallahassee, FL, United States	201-500	469 contacts →
	Exact match “For over twenty years, Hagerty Consulting has supported clients in preparing for, responding to, and recovering from some of the nation’s largest and most complex disasters.” 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 resilience 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 1,962 climate resilience consulting firms based in the United States

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Climate resilience consulting firms based in the United States at a glance

As of Aug 31, 2026

51.7%Verified-email coverage

40.0%Mobile-number coverage

38.7Average contacts per company

1-10Median size (employees)

4.8%Largest-city concentration · New York

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

1,365

11-50

414

51-200

116

201-500

501-1,000

1,001-5,000

10001+

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 resilience 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 39,237 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 resilience consulting firms by metro

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 resilience consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many climate resilience consulting firms are there based in the United States?

RevenueBase identified 1,962 company matches for climate resilience 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?

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

Which city has the most climate resilience consulting firms?

New York leads with 94 company records, followed by Washington (75) and Houston (47).

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 39,237 professional contacts with verified work emails tracked across these 1,962 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.

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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.