Company lists · Data refreshed September 2026

Top 25 Stewardship consulting firms based in the United States

RevenueBase identified 2,481 stewardship consulting firms headquartered in the United States as of September 2026 and tracks 19,670 professional contacts across them, including 8,635 with verified work emails. New York is the largest hub.

This list covers stewardship consulting firms 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 29, 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 29, 2026 86% judged on-target in blind review
2,481Companies
19,670Contacts tracked
8,635Verified emails
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The 25 largest stewardship consulting firms based in the United States

Ranked by team size
Top 25 of 2,481 stewardship consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to stewardship consulting firms: 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 29, 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 29, 2026
2Partial evidenceSan Jose, CA, United StatesHQ checked Sep 29, 2026501-1,000675 contacts →

Partial evidence

“Uniqus Consultech is an AI and global tech-enabled consulting company that specializes in Accounting & Reporting Consulting, Governance, Risk & Compliance, Sustainability &…”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceWayne, PA, United StatesHQ checked Sep 29, 20261,001-5,000557 contacts →

Indirect evidence

“For more than 25 years, SolomonEdwards has empowered organizations to tackle common and complex business challenges through strategic advisory, technical advocacy, and hands-on…”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceBurlington, MA, United StatesHQ checked Sep 29, 2026501-1,000535 contacts →

Indirect evidence

“For 35 years we have been helping investors, lenders, owners, developers, contractors, and property managers reduce risk and optimize their built facilities, infrastructure and…”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 2026501-1,000431 contacts →

Indirect evidence

“Sodali & Co advises corporate clients worldwide as they navigate the complex dynamic of shareholder and stakeholder interests.”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceWashington, DC, United StatesHQ checked Sep 29, 2026501-1,000403 contacts →

Partial evidence

“IBM Promontory is a global leader in strategy, risk management, and compliance consulting.#IBMConsulting”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceLong Beach, CA, United StatesHQ checked Sep 29, 2026201-500375 contacts →

Indirect evidence

“P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceGainesville, FL, United StatesHQ checked Sep 29, 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 29, 2026
9Indirect evidenceLancaster, NY, United StatesHQ checked Sep 29, 20265,001-10,000278 contacts →

Indirect evidence

“E&E is now WSP USA.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 2026201-500198 contacts →

Indirect evidence

“Bold steps forward.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceBedford, NH, United StatesHQ checked Sep 29, 2026201-500189 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceRockville, MD, United StatesHQ checked Sep 29, 2026201-500152 contacts →

Partial evidence

“Ripple Effect provides professional consulting and exceptional talent for federal, private, and non-profit clients to deliver some of the most crucial policies and programs that…”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 29, 202651-200152 contacts →

Partial evidence

“Founded in 1988, KERAMIDA is a multidisciplinary Sustainability, EHS & Engineering consulting firm grounded in evidence-based research and development.”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceThe Colony, TX, United StatesHQ checked Sep 29, 202651-200147 contacts →

Partial evidence

“Quest Resource Management Group, a subsidiary of Quest Resource Holding Corporation (Nasdaq: QRHC), is a full-service environmental consulting and management company headquartered…”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceElmhurst, IL, United StatesHQ checked Sep 29, 202651-200140 contacts →

Indirect evidence

“Since the passage of original environmental legislation nearly four decades ago, both private and public industry have turned to Mostardi Platt for guidance in complying with air…”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceBoston, MA, United StatesHQ checked Sep 29, 202651-200138 contacts →

Indirect evidence

“CW Advisors (formerly Congress Wealth Management LLC) is an SEC-registered investment management firm, developing innovative wealth solutions for high-net-worth individuals…”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 202611-50133 contacts →

Indirect evidence

“At OnePointFive we solve your sustainability focused business challenges by empowering your organization with expert-led solutions, embedded training, and cutting edge tools to…”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceIrving, TX, United StatesHQ checked Sep 29, 202651-200125 contacts →

Indirect evidence

“Welcome to Greystone, where we live and breathe senior living.”

Source: RevenueBase Database · checked Sep 29, 2026
19Partial evidenceFairfax, VA, United StatesHQ checked Sep 29, 202651-200118 contacts →

Partial evidence

“McKing Consulting Corporation provides a variety of general and specialized management consulting services to the federal government, state agencies, nonprofits, and public and…”

Source: RevenueBase Database · checked Sep 29, 2026
20Partial evidenceSeattle, WA, United StatesHQ checked Sep 29, 202651-200110 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceBellevue, WA, United StatesHQ checked Sep 29, 202651-200106 contacts →

Partial evidence

“Farallon Consulting helps clients navigate complex environmental challenges with practical, technically-sound solutions grounded in accuracy, integrity, and collaboration.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceChantilly, VA, United StatesHQ checked Sep 29, 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 29, 2026
23Partial evidenceCharlotte, NC, United StatesHQ checked Sep 29, 202651-200103 contacts →

Partial evidence

“Hart & Hickman PC provides environmental consulting services to commercial, industrial, and governmental clients throughout the Southeast US.”

Source: RevenueBase Database · checked Sep 29, 2026
24Partial evidenceGlendale, CA, United StatesHQ checked Sep 29, 202651-200102 contacts →

Partial evidence

“Founded in 1993, Citadel EHS provides comprehensive environmental, health, safety, and sustainability consulting solutions to meet the needs of both the public and private sectors.”

Source: RevenueBase Database · checked Sep 29, 2026
25Partial evidenceIndianapolis, United StatesHQ checked Sep 29, 202651-20099 contacts →

Partial evidence

“Engaging Solutions is a multi-faceted management consulting firm with the personnel and resources to accomplish everything from high level management and auditing to ground-level…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 2,481 stewardship consulting firms based in the United States

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Stewardship consulting firms based in the United States at a glance

As of Sep 29, 2026
43.9%Verified-email coverage
7.9Average contacts per company
1-10Median size (employees)
5.8%Largest-city concentration · New York
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
1,994
11-50
392
51-200
70
201-500
10
501-1,000
6
1,001-5,000
4
5,001-10,000
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 2,481 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 stewardship consulting firms, 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 “stewardship consulting firms”. 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 stewardship consulting firms), 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 stewardship consulting firms, 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, 8,635 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 29, 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 stewardship consulting firms, 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 stewardship consulting firms are there based in the United States?

RevenueBase identified 2,481 stewardship consulting firms 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 stewardship consulting firms?

New York leads with 145 headquartered companies, followed by Washington (95) and Chicago (68).

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 8,635 verified decision-maker contacts tracked across these 2,481 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 29, 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.