Company lists · Data refreshed September 2026

Top 23 Industrial sustainability consultants based in Washington, United States

Name: Industrial sustainability consultants based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 63 companies tracked

RevenueBase identified 63 company matches for industrial sustainability consultants associated with Washington, United States as of September 2026 and tracks 299 professional contacts across them, including 142 with verified work emails. Across the United States, New York is the largest hub for this category (141 companies); Washington has 63.

This list covers company matches for industrial sustainability consultants associated with Washington, 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 September 17, 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 Sep 17, 2026 How this list was built

63Companies

299Contacts tracked

142Verified emails

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The 23 largest industrial sustainability consultants based in Washington, United States

Ranked by team size

Top 23 of 63 company matches for industrial sustainability consultants based in Washington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Baumann Consulting	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	51-200	63 contacts →
	Exact match “Baumann Consulting is driven to deliver solutions for a carbon-neutral real estate industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Northbridge	Exact match	Washington, United StatesHQ recorded Sep 17, 2026	11-50	24 contacts →
	Exact match “At Northbridge, we provide our clients with the tools and expertise to help solve complex financial, policy, and environmental challenges.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	The Clark Group LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	11-50	19 contacts →
	Exact match “The Clark Group is an environmental policy consulting firm that provides a broad range of services to government, private and nonprofit clients.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Numark Associates, INC	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	11-50	15 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Co2efficient	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	1-10	14 contacts →
	Exact match “CO2EFFICIENT LLC (COEFFICIENT) was founded in 2017 as a mission-focused Washington, D.C.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Sustainable YOU	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	51-200	14 contacts →
	Exact match “Sustainable You is a national strategic consulting firm in solar and sustainability serving residential and small commercial clients with a focus in the DC, Maryland and Virginia…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Green Strategies, INC	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	1-10	8 contacts →
	Exact match “Green Strategies Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	The Climate Board	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	11-50	7 contacts →
	Exact match “The Climate Board builds AI-enhanced data products for corporate climate teams, closing the gap between infrequent assessments and real-time risk.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Partnership International, INC	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	11-50	7 contacts →
	Exact match “Partnership International, Inc, founded in 1990, is an international consulting firm that provides socio-economic, regulatory, institutional, technical, commercial and financial…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Green Capitol	Exact match	Washington, United StatesHQ recorded Sep 17, 2026	1-10	7 contacts →
	Exact match “Green Capitol LLC works on sustainable development policy at the state, federal and international levels, serving clients on agriculture, energy and environment concerns via…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Energy Shrink, LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	1-10	6 contacts →
	Exact match “Energy Shrink is an environmental consulting practice specialized in sustainability and energy efficiency in buildings, that is, high-performance or green buildings.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	38 North Solutions	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	1-10	5 contacts →
	Exact match “38 North Solutions is a boutique consulting firm that provides a suite of business strategy and public policy services to innovative businesses and organizations.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Oasis Energy Partners	Exact match	Washington, United StatesHQ recorded Sep 17, 2026	1-10	5 contacts →
	Exact match “OASIS Energy Partners is a full-service consulting and advisory firm at the intersection of energy, environment, and climate.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	GQS NEW Energy Strategies	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	1-10	5 contacts →
	Exact match “Our team leverages deep industry expertise to help you navigate regulatory shifts and seize new opportunities in clean energy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Deborah Brosnan & Associates	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	1-10	4 contacts →
	Exact match “Leading and innovative company that finding solutions, bridging gaps and driving positive action for clients and the planet.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Sustainability Frameworks	Exact match	Washington, United StatesHQ recorded Sep 17, 2026	1-10	4 contacts →
	Exact match “Sustainability Frameworks helps its public and private sector clients develop strategies to manage their environmental and social risks and opportunities, optimize their…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	JG Global Advisory, LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	1-10	4 contacts →
	Exact match “JG Global Advisory, LLC is a minority, woman-owned small business (WOSB) consultancy providing advisory services and integrated solutions for environmental and international…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Pagitsas Advisors	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	1-10	3 contacts →
	Exact match “Pagitsas Advisors is a professional services firm specializing in the commercialization of sustainability.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Ardeidae Group	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	1-10	2 contacts →
	Exact match “Strategic advisory services for the triple bottom line.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Brolte, LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	1-10	1 contacts →
	Exact match “Brolte, LLC is a single-member consulting firm specializing in the delivery of energy efficiency and financial consulting.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	The Change Agency	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	1-10	1 contacts →
	Exact match “As our world enters an accelerating-scarcity era, in order for business strategies to be effective and enduring, we believe they must optimize both sustainability and economic…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Andmore Associates, LLC	Exact match	Washington, United StatesHQ recorded Sep 17, 2026	1-10	1 contacts →
	Exact match “AndMore Associates LLC is a global business development and consulting firm focused on advancing markets and building partnerships in agriculture, energy, and environment.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Jmpetrus Consulting LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	1-10	1 contacts →
	Exact match “JMPetrus Consulting LLC is a strategy-oriented, research, M&E and proposal development firm focused fragile contexts in Africa and the Middle East.” Recorded in the RevenueBase company graph · Sep 17, 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 “industrial sustainability consultants”. 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 23 of 63 industrial sustainability consultants based in Washington, United States

See the full list, filter by size, metro and specialty, and access 142 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial sustainability consultants based in Washington, United States at a glance

As of Sep 17, 2026

47.5%Verified-email coverage

4.7Average contacts per company

1-10Median size (employees)

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 63 companies.

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 Washington, United States whose business descriptions match “industrial sustainability consultants” 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 142 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 September 17, 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.

Industrial sustainability consultants by metro in the United States

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 “industrial sustainability consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial sustainability consultants are there based in Washington, United States?

RevenueBase identified 63 company matches for industrial sustainability consultants associated with Washington, United States as of September 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?

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

Which city in the United States has the most industrial sustainability consultants?

New York leads the United States with 141 company records, followed by Houston (112) and Chicago (72). Washington has 63.

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 142 professional contacts with verified work emails tracked across these 63 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 September 17, 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.