Company lists · Data refreshed September 2026

Top 9 Cleantech startups based in Thailand

RevenueBase identified 36 company matches for cleantech startups associated with Thailand as of September 2026 and tracks 536 professional contacts across them, including 60 with verified work emails. Bangkok is the largest hub.

This list covers company matches for cleantech startups associated with Thailand, 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 19, 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 19, 2026 How this list was built
36Companies
536Contacts tracked
60Verified emails
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The 9 largest cleantech startups based in Thailand

Ranked by team size
Top 9 of 36 company matches for cleantech startups based in Thailand, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBangrak, ThailandHQ recorded Sep 19, 2026501-1,000100 contacts →

Exact match

“GreenYellow in Asia is the trusted energy partner of C&I companies to make their energy transition a success.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchPatumwan, ThailandHQ recorded Sep 19, 202651-20039 contacts →

Exact match

“Established in 2011, Impact Electrons Siam (IES) emerged successfully in the renewable energy industry with strong emphasis on developing clean and reliable energy in order to…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchKlong Toei, ThailandHQ recorded Sep 19, 202611-5020 contacts →

Exact match

“Asia Clean Energy Partners is an international firm that provides consulting, advisory, and project origination services related to the energy sector.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchLumpini, ThailandHQ recorded Sep 19, 202651-20017 contacts →

Exact match

“We work with partners to provide clean-energy engineering, consultancy, solutions and corporate training services to investors and asset owners in SE Asia.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchWattana, ThailandHQ recorded Sep 19, 202651-2008 contacts →

Exact match

“Power Systems & Solutions Co.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchChatuchak, ThailandHQ recorded Sep 19, 202611-507 contacts →

Exact match

“At BAFS Clean Energy Corporation, we are dedicated to driving the transition towards a sustainable future.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchBangbuathong, ThailandHQ recorded Sep 19, 202611-503 contacts →

Exact match

“ECOTECH was founded in 2004.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchBangkok, ThailandHQ recorded Sep 19, 202611-503 contacts →

Exact match

“Solar Express founded by groups of project Engineers whose highly experience in their field of electrical engineering, civil engineering and Industrial engineering.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchBangkok, ThailandHQ recorded Sep 19, 20261-102 contacts →

Exact match

“Let's fight climate change and solarize Thailand.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 9 of 36 cleantech startups based in Thailand

See the full list, filter by size, metro and specialty, and access 60 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cleantech startups based in Thailand at a glance

As of Sep 19, 2026
11.2%Verified-email coverage
14.9Average contacts per company
11-50Median size (employees)
63.9%Largest-city concentration · Bangkok
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
7
11-50
12
51-200
13
201-500
1
501-1,000
1
1,001-5,000
1

Email recency for this list is measured worldwide rather than for Thailand, so it is reported there. Company counts and contact totals on this page are exact for Thailand, over 36 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 Thailand whose business descriptions match “cleantech startups” 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 60 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 19, 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.

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 “cleantech startups”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cleantech startups are there based in Thailand?

RevenueBase identified 36 company matches for cleantech startups associated with Thailand 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?

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

Which city has the most cleantech startups?

Bangkok leads with 23 company records, followed by Wattana Bangkok (2) and Bangna (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 60 professional contacts with verified work emails tracked across these 36 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 19, 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.