Company lists · Data refreshed September 2026

Top 25 Coastal management consultants based in the United States

RevenueBase identified 787 coastal management consultants headquartered in the United States as of September 2026 and tracks 16,334 professional contacts across them, including 8,721 with verified work emails. Seattle is the largest hub.

This list covers coastal management consultants headquartered in the United States, 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 27, 2026.

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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 27, 2026 86% judged on-target in blind review
787Companies
16,334Contacts tracked
8,721Verified emails
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The 25 largest coastal management consultants based in the United States

Ranked by team size
Top 25 of 787 coastal management consultants based in the United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to coastal management consultants: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidencePhoenix, AZ, United StatesHQ checked Sep 27, 20261,001-5,0001,629 contacts →

Partial 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 27, 2026
2Indirect evidenceSeattle, WA, United StatesHQ checked Sep 27, 2026501-1,000880 contacts →

Indirect evidence

“At Parametrix, we help our clients imagine what's possible.”

Source: RevenueBase Database · checked Sep 27, 2026
3Indirect evidenceEncinitas, CA, United StatesHQ checked Sep 27, 2026501-1,000795 contacts →

Indirect evidence

“Dudek is an environmental, planning, and engineering consulting firm.”

Source: RevenueBase Database · checked Sep 27, 2026
4Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 27, 2026501-1,000732 contacts →

Indirect evidence

“ESA is a 100% employee-owned environmental consulting firm.”

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 202651-200504 contacts →

Indirect evidence

“BSC Group, Inc.(BSC) is a multidisciplinary consulting firm with a staff of more than 200 professionals and offices in Boston, Worcester, Andover, and West Yarmouth, MA, as well…”

Source: RevenueBase Database · checked Sep 27, 2026
6Indirect evidenceSeattle, WA, United StatesHQ checked Sep 27, 2026501-1,000479 contacts →

Indirect evidence

“Headquartered in Seattle, Washington, Anchor QEA is a nationally recognized environmental science and engineering consulting firm specializing in aquatic, shoreline, and water…”

Source: RevenueBase Database · checked Sep 27, 2026
7Partial evidenceVentura, CA, United StatesHQ checked Sep 27, 2026501-1,000479 contacts →

Partial evidence

“Rincon Consultants is a multi-disciplinary environmental sciences, planning, and engineering consulting firm that provides quality professional services to government and industry.”

Source: RevenueBase Database · checked Sep 27, 2026
8Indirect evidenceIrvine, CA, United StatesHQ checked Sep 27, 2026201-500332 contacts →

Indirect evidence

“LSA is a diversified environmental, transportation, and community planning firm that evolved from a small consulting firm.”

Source: RevenueBase Database · checked Sep 27, 2026
9Partial evidenceGainesville, FL, United StatesHQ checked Sep 27, 2026201-500305 contacts →

Partial evidence

“Environmental Consulting & Technology, Inc.(ECT) is a multi-disciplinary environmental and sustainability consulting firm delivering strategy, permitting, design, and management…”

Source: RevenueBase Database · checked Sep 27, 2026
10Indirect evidenceBedford, NH, United StatesHQ checked Sep 27, 2026201-500189 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
11Partial evidenceSan Rafael, CA, United StatesHQ checked Sep 27, 202651-200183 contacts →

Partial evidence

“WRA is an environmental consultancy that’s making a net positive impact.”

Source: RevenueBase Database · checked Sep 27, 2026
12Partial evidenceSeattle, WA, United StatesHQ checked Sep 27, 202651-200176 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceNorth Dartmouth, MA, United StatesHQ checked Sep 27, 2026201-500173 contacts →

Indirect evidence

“A.I.S, Inc (AIS) supports the stewardship of our nation's ocean resources and their habitats.”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidenceRocklin, CA, United StatesHQ checked Sep 27, 202651-200166 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceCambridge, MA, United StatesHQ checked Sep 27, 202651-200163 contacts →

Indirect evidence

“IEc is an environmental consulting firm with four decades of experience providing consulting services to a diverse client base.”

Source: RevenueBase Database · checked Sep 27, 2026
16Indirect evidenceTempe, AZ, United StatesHQ checked Sep 27, 202651-200160 contacts →

Indirect evidence

“Logan Simpson is a nationally recognized firm building on culture and history to co-create an inclusive, healthy, and resilient future.”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceHonolulu, HI, United StatesHQ checked Sep 27, 202651-200145 contacts →

Indirect evidence

“At Oceanit, a rule-breaking practice of Intellectual Anarchy™ produces disruptive innovation, as we consistently discover the edges of thinking and create breakthroughs in…”

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceYaphank, NY, United StatesHQ checked Sep 27, 202651-200135 contacts →

Indirect evidence

“EnviroTrac Ltd.”

Source: RevenueBase Database · checked Sep 27, 2026
19Indirect evidenceBerkeley, CA, United StatesHQ checked Sep 27, 202651-200115 contacts →

Indirect evidence

“Stillwater Sciences is committed to creating a better world through science.”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceSeattle, WA, United StatesHQ checked Sep 27, 202651-200110 contacts →

Indirect evidence

“Cascadia Consulting Group is a majority women-owned consulting firm specializing in environmental and sustainability solutions.”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceJacksonville, FL, United StatesHQ checked Sep 27, 202651-200105 contacts →

Indirect evidence

“Since 1987, Taylor Engineering, Inc, with headquarters in Jacksonville, Florida; branch offices in Destin and Tampa, Florida; and regional staff throughout Florida and the North…”

Source: RevenueBase Database · checked Sep 27, 2026
22Partial evidenceChantilly, VA, United StatesHQ checked Sep 27, 2026201-500104 contacts →

Partial evidence

“Established in 1983, TechLaw provides environmental and management consulting services to the public sector nationwide.”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceMillersville, MD, United StatesHQ checked Sep 27, 2026201-500101 contacts →

Indirect evidence

“Our mission is to be the keystone species in the restoration of the Chesapeake Bay.”

Source: RevenueBase Database · checked Sep 27, 2026
24Indirect evidenceMechanicsville, VA, United StatesHQ checked Sep 27, 202611-50101 contacts →

Indirect evidence

“Consulting, Inc.(3e) is a dynamic and progressive certified small business that specializes in environmental studies, environmental engineering, environmental education, and…”

Source: RevenueBase Database · checked Sep 27, 2026
25Indirect evidenceArlington, VA, United StatesHQ checked Sep 27, 202651-200100 contacts →

Indirect evidence

“OAI provides professional consulting services to government organizations, the private sector, academia, and UN agencies.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 787 coastal management consultants based in the United States

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Coastal management consultants based in the United States at a glance

As of Sep 27, 2026
53.4%Verified-email coverage
20.8Average contacts per company
1-10Median size (employees)
2.4%Largest-city concentration · Seattle
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
457
11-50
248
51-200
64
201-500
9
501-1,000
6
1,001-5,000
2

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 787 companies.

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 coastal management consultants, 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “coastal management consultants”. 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 coastal management consultants), 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 coastal management consultants, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 8,721 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 27, 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.

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 coastal management consultants, 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 coastal management consultants are there based in the United States?

RevenueBase identified 787 coastal management consultants headquartered in the United States 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?

Swca Environmental Consultants, headquartered in Phoenix, tops this list with the largest team on record.

Which city has the most coastal management consultants?

Seattle leads with 19 headquartered companies, followed by Houston (12) and Sacramento (10).

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 8,721 verified decision-maker contacts tracked across these 787 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 27, 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.