Company lists · Data refreshed September 2026
Top 25 Corporate sustainability consulting firms based in New York, United States
RevenueBase identified 140 corporate sustainability consulting firms headquartered in New York, United States as of September 2026 and tracks 10,605 professional contacts across them, including 5,938 with verified work emails. Across the United States, New York is the largest hub for this category.
This list covers corporate sustainability consulting firms headquartered in New York, 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.
The 25 largest corporate sustainability consulting firms based in New York, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 9,318 contacts → | ||||
Indirect evidence “What if you could shape built and natural environments – and the future of those that use them?” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 198 contacts → | ||||
Indirect evidence “Bold steps forward.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 92 contacts → | ||||
Indirect evidence “AccountAbility is a global advisory and standards firm that serves business, investors, governments, and multi-lateral organizations.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 84 contacts → | ||||
Indirect evidence “Malk Partners is the foremost consultancy advising private equity firms to create and protect value through environmental, social, and governance (ESG) management.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 72 contacts → | ||||
Strong evidence “CodeGreen is a leading national sustainability and energy efficiency consulting firm.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 62 contacts → | ||||
Partial evidence “Welcome to Cognitud, where purpose-driven consulting meets global impact.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 47 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 32 contacts → | ||||
Strong evidence “Governance & Accountability Institute is organized as the “Sustainability Headquarters™” for clients in the corporate community and in the investment and financial services sector.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 27 contacts → | ||||
Partial evidence “Achieving Extraordinary Results with companies and clients worldwide through Scenario Planning, Executive Coaching, Corporate Governance and M&A.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 26 contacts → | ||||
Partial evidence “Backed by 30+ years of experience, Great Forest is a leader in sustainable waste management consulting.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 26 contacts → | ||||
Strong evidence “Soulful Synergy, LLC is a full service, socially conscious consulting company that takes a multifaceted approach to sustainability, workforce and community development.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 21 contacts → | ||||
Partial evidence “Ideas On Purpose helps responsible organizations communicate sustainability and impact to audiences invested in how they operate.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 19 contacts → | ||||
Strong evidence “Altanova is a sustainability firm with consulting and engineering capabilities.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 17 contacts → | ||||
Strong evidence “Nexia Group Holdings provides strategic advice, operational consulting, and capital to early- and expansion-stage companies in the most promising segments of the sustainability…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 12 contacts → | ||||
Indirect evidence “TJBauman, LLC is a NYC sustainable development strategy and communications firm specializing in the market opportunities for advancing positive social impact and regenerative…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 11 contacts → | ||||
Indirect evidence “Compose[d] is a full services agency built around driving positive impact.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 10 contacts → | ||||
Indirect evidence “For leaders who recognize the value of aligning business goals with creating a better world, Handshake builds influence that meets a human need, solves a problem for society, and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 10 contacts → | ||||
Indirect evidence “URA is now part of Environ Energy, a leader in accelerating global sustainable energy transformation for more than 30 years.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 10 contacts → | ||||
Partial evidence “The Bassiouni Group (TBG) is a global consulting firm.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 8 contacts → | ||||
Partial evidence “BuzzWord, part of Anthesis, helps companies develop effective sustainability reporting and disclosure strategies, provides guidance on aligning with frameworks and requirements…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 contacts → | ||||
Partial evidence “We are a boutique global sustainability and climate advisory practice with two main focuses: Driving companies to build best-in-class business models within an ESG construct…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 contacts → | ||||
Partial evidence “Azuri is a boutique sustainability consultancy supporting organizations to innovate, build resilience, and create long-term value within planetary and societal boundaries.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 contacts → | ||||
Partial evidence “KO2 Consulting provides strategic energy consultant services for government agencies, non- profit organizations and private companies to achieve organizational energy performance…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 contacts → | ||||
Partial evidence “With experience across sectors, we support the development, management, and integration of sustainability and ESG strategies that are relevant and cost-effective.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
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: corporate sustainability consulting firms. 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 corporate sustainability consulting firms.
- Partial evidence
- Its own public description names part of corporate sustainability consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name corporate sustainability consulting firms. 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 140 corporate sustainability consulting firms based in New York, United States
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Corporate sustainability consulting firms based in New York, United States at a glance
As of Sep 27, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 140 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 corporate sustainability 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 New York, United States whose own description of what they do matches “corporate sustainability 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 corporate sustainability 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 corporate sustainability consulting firms, and records with no verified work email. Companies headquartered outside New York 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, 5,938 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.
Corporate sustainability consulting firms by metro in the United States
- Corporate sustainability consulting firms in Chicago73
- Corporate sustainability consulting firms in Los Angeles64
- Corporate sustainability consulting firms in Washington61
- Corporate sustainability consulting firms in Atlanta52
- Corporate sustainability consulting firms in San Francisco51
- Corporate sustainability consulting firms in Seattle51
- Corporate sustainability consulting firms in Houston44
- Corporate sustainability consulting firms in Miami42
- Corporate sustainability consulting firms in Denver40
- Corporate sustainability consulting firms in Austin27
- Corporate sustainability consulting firms in Portland27
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 corporate sustainability 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 corporate sustainability consulting firms are there based in New York, United States?
RevenueBase identified 140 corporate sustainability consulting firms headquartered in New York, 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?
WSP In The U.S, headquartered in New York, tops this list with the largest team on record.
Which city in the United States has the most corporate sustainability consulting firms?
New York leads the United States with 140 headquartered companies, followed by Chicago (73) and Los Angeles (64).
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 5,938 verified decision-maker contacts tracked across these 140 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.
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