Company lists · Data refreshed November 2026

Top 25 Environmental sustainability consulting firms based in Singapore

Name: Environmental sustainability consulting firms based in Singapore
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 138 companies tracked

RevenueBase identified 138 company matches for environmental sustainability consulting firms associated with Singapore as of November 2026 and tracks 1,120 professional contacts across them, including 285 with verified work emails. Singapore is the largest hub.

This list covers company matches for environmental sustainability consulting firms associated with Singapore, 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 November 5, 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 Nov 5, 2026 How this list was built

138Companies

1,120Contacts tracked

285Verified emails

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The 25 largest environmental sustainability consulting firms based in Singapore

Ranked by team size

Top 25 of 138 company matches for environmental sustainability consulting firms based in Singapore, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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	Steven Leach Group	Exact match	Singapore / Kuala Lumpur / Tokyo / Seoul / Shanghai / Bangkok / Hong Kong / Taipei, SingaporeHQ recorded Nov 5, 2026	201-500	156 contacts →
	Exact match “As your partners in creative solutions, you are our focus.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Building System And Diagnostics PTE LTD	Exact match	Rochor, SingaporeHQ recorded Nov 5, 2026	11-50	68 contacts →
	Exact match “Building System & Diagnostics, or BSD as we like to call ourselves, started off in 2003 as a spin-off company of the National University of Singapore (NUS).” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	WEB Structures	Exact match	SingaporeHQ recorded Nov 5, 2026	51-200	54 contacts →
	Exact match “Web Structures is an internationally-acclaimed civil, structural and geotechnical engineering consultancy delivering high quality solutions across the globe.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Lestari Capital	Exact match	SingaporeHQ recorded Nov 5, 2026	11-50	50 contacts →
	Exact match “We partner with companies in their global transformation to sustainable economies by providing products and services that meet diverse market demands.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Tembusu Asia Consulting	Exact match	SingaporeHQ recorded Nov 5, 2026	11-50	46 contacts →
	Exact match “TEMBUSU Asia Consulting derives its name from the Tembusu – a large evergreen tree in the family Gentianaceae which is native to Southeast Asia.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Vector Green	Exact match	SingaporeHQ recorded Nov 5, 2026	51-200	46 contacts →
	Exact match “Vector Green is a Singapore-based energy and sustainability engineering firm helping organisations plan and implement practical energy transition solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Unravel Carbon	Exact match	SingaporeHQ recorded Nov 5, 2026	11-50	40 contacts →
	Exact match “Unravel Carbon is the world’s first agentic platform for sustainability outcomes.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Csrworks International	Exact match	SingaporeHQ recorded Nov 5, 2026	11-50	22 contacts →
	Exact match “CSRWorks is a purpose-driven sustainability services firm committed to creating positive change.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	Pomeroy Studio	Exact match	SingaporeHQ recorded Nov 5, 2026	11-50	22 contacts →
	Exact match “Pomeroy Studio are an award-winning international team of designers and thought leaders of sustainable built environments.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	EFC International	Exact match	SingaporeHQ recorded Nov 5, 2026	51-200	20 contacts →
	Exact match “EFC, derived from Environmental First Corporation, embodies our core purpose of empowering sustainability excellence for a better world.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Paia From Cbre	Exact match	SingaporeHQ recorded Nov 5, 2026	11-50	17 contacts →
	Exact match “Paia FROM CBRE is the result of an amalgamation between CBRE Pte Ltd and Paia Consulting in August 2024.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Massivue	Exact match	SingaporeHQ recorded Nov 5, 2026	11-50	16 contacts →
	Exact match “MASSIVUE helps enterprises turn AI and change into results that last.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	ECO Sustainability	Exact match	SingaporeHQ recorded Nov 5, 2026	11-50	14 contacts →
	Exact match “Eco Sustainability Group is a sustainability consultancy at the forefront of environmental innovation.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Corpsustain Ventures	Exact match	Downtown Core, SingaporeHQ recorded Nov 5, 2026	1-10	12 contacts →
	Exact match “Corpsustain is built to expertly navigate ESG challenges, offering precise Due Diligence and innovative NetZero Strategies tailored for infrastructure and financial institutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Aubrens	Exact match	SingaporeHQ recorded Nov 5, 2026	11-50	11 contacts →
	Exact match “Aubrens is about building organisations that serve the world.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Finnex Finnex Management Consulting Winner Of Entrepreneur Of The Year EYA Award 2022	Exact match	Downtown Core, SingaporeHQ recorded Nov 5, 2026	1-10	10 contacts →
	Exact match “Transforming SMEs - Finnex Group of Companies is an All-In-One Business Sustainability and Globalisation Management Consulting Group in Singapore equipped with over 50 years of…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Estes Consultancy	Exact match	SingaporeHQ recorded Nov 5, 2026	1-10	6 contacts →
	Exact match “Estes Consultancy is a Singapore-based sustainability consultancy firm dedicated to green solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Sustainao	Exact match	SingaporeHQ recorded Nov 5, 2026	1-10	6 contacts →
	Exact match “Sustainao is a Singapore-based company specialising in corporate sustainability.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Triple Eyelid	Exact match	SingaporeHQ recorded Nov 5, 2026	1-10	6 contacts →
	Exact match “Bespoked \| Upcycle \| Furniture Triple Eyelid comprises a team of dedicated young designers, working hard into the research and development of environmentally sustainable design.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Earth-In-Mind Private Limited	Exact match	SingaporeHQ recorded Nov 5, 2026	1-10	6 contacts →
	Exact match “Earth-In-Mind is committed to sustainable design, in line with the worldwide green movement.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	Blue Plan	Exact match	Toa Payoh, SingaporeHQ recorded Nov 5, 2026	11-50	5 contacts →
	Exact match “Blue Plan Consulting operates from Singapore, servicing South East Asia.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Circular Unite	Exact match	SingaporeHQ recorded Nov 5, 2026	1-10	5 contacts →
	Exact match “Circular Unite is your trusted partner in the journey towards corporate decarbonization, committed to the ambitious Net Zero 2050 target.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Finnish Consulting Group Asia	Exact match	SingaporeHQ recorded Nov 5, 2026	1-10	5 contacts →
	Exact match “We support our clients in reaching sustainable development goals by developing and implementing projects pursuing sound environmental management, climate action, clean water and…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	IDP Consulting	Exact match	SingaporeHQ recorded Nov 5, 2026	11-50	4 contacts →
	Exact match “IDP Consulting provides strategic planning and implementation advice to multinational energy and mining companies developing and operating large-scale infrastructure projects.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	The Inceptery	Exact match	SingaporeHQ recorded Nov 5, 2026	1-10	4 contacts →
	Exact match “Preparing and transforming your business for the future, through sustainability-led innovation.” Recorded in the RevenueBase company graph · Nov 5, 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 “environmental sustainability consulting firms”. 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 25 of 138 environmental sustainability consulting firms based in Singapore

See the full list, filter by size, metro and specialty, and access 285 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental sustainability consulting firms based in Singapore at a glance

As of Nov 5, 2026

25.4%Verified-email coverage

8.1Average contacts per company

1-10Median size (employees)

91.3%Largest-city concentration · Singapore

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for Singapore, so it is reported there. Company counts and contact totals on this page are exact for Singapore, over 138 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 Singapore whose business descriptions match “environmental sustainability consulting firms” 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 285 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 November 5, 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.

Environmental sustainability consulting firms by metro

Environmental sustainability consulting firms in Singapore126

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

How many environmental sustainability consulting firms are there based in Singapore?

RevenueBase identified 138 company matches for environmental sustainability consulting firms associated with Singapore as of November 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?

Steven Leach Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most environmental sustainability consulting firms?

Singapore leads with 126 company records, followed by Downtown Core (3) and Jurong East (1).

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 285 professional contacts with verified work emails tracked across these 138 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 November 5, 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.