Company lists · Data refreshed September 2026

Top 25 Sustainable procurement consultants based in the United States

Name: Sustainable procurement consultants based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 1,215 companies tracked

RevenueBase identified 1,215 sustainable procurement consultants headquartered in the United States as of September 2026 and tracks 11,380 professional contacts across them, including 4,172 with verified work emails. New York is the largest hub.

This list covers sustainable procurement 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 22, 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 22, 2026 86% judged on-target in blind review

1,215Companies

11,380Contacts tracked

4,172Verified emails

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The 25 largest sustainable procurement consultants based in the United States

Ranked by team size

Top 25 of 1,215 sustainable procurement consultants based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable procurement 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Swca Environmental Consultants	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,629 contacts →
	Indirect 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 22, 2026
2	OLA	Partial evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	n/a	1,145 contacts →
	Partial evidence “OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.” Source: RevenueBase Database · checked Sep 22, 2026
3	ATS	Indirect evidence	Cambridge, United StatesHQ checked Sep 22, 2026	n/a	313 contacts →
	Indirect evidence “ATS – 40 Years: Advancing Projects, Boosting Profits, and Cutting Costs For over 40 years, ATS has partnered with organizations worldwide to deliver outstanding results.” Source: RevenueBase Database · checked Sep 22, 2026
4	SDI International Corp	Indirect evidence	Boca Raton, FL, United StatesHQ checked Sep 22, 2026	1,001-5,000	260 contacts →
	Indirect evidence “Every transformation starts with innovative ideas.” Source: RevenueBase Database · checked Sep 22, 2026
5	Metiri Group	Indirect evidence	Clovis, CA, United StatesHQ checked Sep 22, 2026	n/a	233 contacts →
	Indirect evidence “Appl Inc is an environmental services company based out of 908 N Temperance Ave, Clovis, CA, United States.” Source: RevenueBase Database · checked Sep 22, 2026
6	Keramida INC	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 22, 2026	51-200	152 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 22, 2026
7	Quest Resource Management Group, A Qrhc Company Nasdaq Qrhc	Indirect evidence	The Colony, TX, United StatesHQ checked Sep 22, 2026	51-200	147 contacts →
	Indirect 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 22, 2026
8	Onepointfive Opf.Degree	Partial evidence	New York, NY, United StatesHQ checked Sep 22, 2026	11-50	133 contacts →
	Partial 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 22, 2026
9	Cascadia Consulting Group	Partial evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	51-200	110 contacts →
	Partial evidence “Cascadia Consulting Group is a majority women-owned consulting firm specializing in environmental and sustainability solutions.” Source: RevenueBase Database · checked Sep 22, 2026
10	Techlaw	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 22, 2026	201-500	104 contacts →
	Indirect evidence “Established in 1983, TechLaw provides environmental and management consulting services to the public sector nationwide.” Source: RevenueBase Database · checked Sep 22, 2026
11	Citadel EHS	Partial evidence	Glendale, CA, United StatesHQ checked Sep 22, 2026	51-200	102 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 22, 2026
12	AKT Peerless	Strong evidence	Saginaw, MI, United StatesHQ checked Sep 22, 2026	51-200	96 contacts →
	Strong evidence “We are environmental consultants and redevelopment experts who are proud to help build sustainable communities.” Source: RevenueBase Database · checked Sep 22, 2026
13	Verdani Partners	Partial evidence	Carlsbad, CA, United StatesHQ checked Sep 22, 2026	51-200	89 contacts →
	Partial evidence “Verdani Partners is a full service sustainability consulting firm specialized in corporate sustainability, LEED certification and greening and retrofitting existing buildings.” Source: RevenueBase Database · checked Sep 22, 2026
14	WAP Sustainability	Partial evidence	Chattanooga, United StatesHQ checked Sep 22, 2026	51-200	81 contacts →
	Partial evidence “From WAP Sustainability works with organizations as an outsourced sustainability service.” Source: RevenueBase Database · checked Sep 22, 2026
15	Group14 Engineering, PBC	Indirect evidence	Denver, CO, United StatesHQ checked Sep 22, 2026	11-50	75 contacts →
	Indirect evidence “Group14 Engineering is a Denver-based consulting firm committed to inspiring better buildings where people thrive.” Source: RevenueBase Database · checked Sep 22, 2026
16	Ckinetics	Partial evidence	Cupertino, CA, United StatesHQ checked Sep 22, 2026	51-200	72 contacts →
	Partial evidence “cKinetics is a Sustainability specialist which provides: Sustainability strategy advisory services, Information products and incubation capital.” Source: RevenueBase Database · checked Sep 22, 2026
17	WRD Environmental	Partial evidence	Chicago, IL, United StatesHQ checked Sep 22, 2026	11-50	64 contacts →
	Partial evidence “WRD Environmental helps organizations committed to sustainability realize their vision.” Source: RevenueBase Database · checked Sep 22, 2026
18	Baumann Consulting	Indirect evidence	Washington, DC, United StatesHQ checked Sep 22, 2026	51-200	63 contacts →
	Indirect evidence “Baumann Consulting is driven to deliver solutions for a carbon-neutral real estate industry.” Source: RevenueBase Database · checked Sep 22, 2026
19	Wasteology	Partial evidence	Louisville, KY, United StatesHQ checked Sep 22, 2026	51-200	62 contacts →
	Partial evidence “Let’s start doing smarter, simpler, more sustainable business.” Source: RevenueBase Database · checked Sep 22, 2026
20	Cognitud	Indirect evidence	New York, NY, United StatesHQ checked Sep 22, 2026	51-200	62 contacts →
	Indirect evidence “Welcome to Cognitud, where purpose-driven consulting meets global impact.” Source: RevenueBase Database · checked Sep 22, 2026
21	Brightworks Sustainability	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	51-200	61 contacts →
	Partial evidence “Recognized for advanced subject matter expertise, wide-ranging technical resources, creative problem-solving, and excellence in professional practice, Brightworks Sustainability…” Source: RevenueBase Database · checked Sep 22, 2026
22	Linx-As, LLC	Partial evidence	Blue Bell, PA, United StatesHQ checked Sep 22, 2026	51-200	60 contacts →
	Partial evidence “For over two decades, Linx-AS has been helping businesses be more of what they aspire to be with SAP-strategic, innovative, sustainable, and profitable.” Source: RevenueBase Database · checked Sep 22, 2026
23	RZ Strategies Group	Indirect evidence	Tysons Corner, VA, United StatesHQ checked Sep 22, 2026	51-200	56 contacts →
	Indirect evidence “RZ Strategies provides management consulting services helping companies avoid the many common pitfalls of the commercial process; we optimize sourcing, contracting and commercial…” Source: RevenueBase Database · checked Sep 22, 2026
24	3r Sustainability	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 22, 2026	11-50	56 contacts →
	Partial evidence “3R Sustainability is a women-owned business providing consulting services rooted in science, supported by data, and driven by innovation, education, and continual improvement…” Source: RevenueBase Database · checked Sep 22, 2026
25	Serveone America, INC	Partial evidence	Troy, MI, United StatesHQ checked Sep 22, 2026	11-50	55 contacts →
	Partial evidence “SERVEONE, The Best Purchasing Solution Expert and the Market-leading Business Partner for Your Sustainable Growth.” Source: RevenueBase Database · checked Sep 22, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: sustainable procurement consultants. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names sustainable procurement consultants.
Partial evidence: Its own public description names part of sustainable procurement consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable procurement consultants. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,215 sustainable procurement consultants based in the United States

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Sustainable procurement consultants based in the United States at a glance

As of Sep 22, 2026

36.7%Verified-email coverage

9.4Average contacts per company

1-10Median size (employees)

5.6%Largest-city concentration · New York

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

947

11-50

203

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,215 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 sustainable procurement 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 “sustainable procurement 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 sustainable procurement 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 sustainable procurement 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, 4,172 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 22, 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.

Sustainable procurement consultants by metro

Sustainable procurement consultants in New York68
Sustainable procurement consultants in Chicago45
Sustainable procurement consultants in Los Angeles35
Sustainable procurement consultants in Seattle29
Sustainable procurement consultants in Atlanta28
Sustainable procurement consultants in Washington26

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 sustainable procurement 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 sustainable procurement consultants are there based in the United States?

RevenueBase identified 1,215 sustainable procurement 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 sustainable procurement consultants?

New York leads with 68 headquartered companies, followed by Chicago (45) and Los Angeles (35).

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 4,172 verified decision-maker contacts tracked across these 1,215 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 22, 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.