Company lists · Data refreshed September 2026

Top 16 Clean energy technology companies based in Thailand

RevenueBase identified 70 clean energy technology companies headquartered in Thailand as of September 2026 and tracks 1,035 professional contacts across them, including 118 with verified work emails. Bangkok is the largest hub.

This list covers clean energy technology companies headquartered in Thailand, 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 16, 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 16, 2026 86% judged on-target in blind review
70Companies
1,035Contacts tracked
118Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 16 largest clean energy technology companies based in Thailand

Ranked by team size
Top 16 of 70 clean energy technology companies based in Thailand, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to clean energy technology companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceBangrak, ThailandHQ checked Sep 16, 2026501-1,000100 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceBangkok, ThailandHQ checked Sep 16, 20261,001-5,00083 contacts →

Indirect evidence

“Across solar and wind, at BayWa r.e.”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceBangkok, ThailandHQ checked Sep 16, 202651-20082 contacts →

Partial evidence

“Banpu NEXT Co, Ltd.(Banpu NEXT) is a subsidiary of Banpu PCL, an international versatile energy provider.”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceBangkok, ThailandHQ checked Sep 16, 2026201-50042 contacts →

Partial evidence

“SPCG Public Company Limited (SPCG) is a listed company on the Stock Exchange of Thailand under the Energy sector.”

Source: RevenueBase Database · checked Sep 16, 2026
5Strong evidencePatumwan, ThailandHQ checked Sep 16, 202651-20039 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceBangkok, ThailandHQ checked Sep 16, 202611-5014 contacts →

Partial evidence

“Reliable EPC and Intergrator Expert for Solar and Energy Storage system”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceNonthaburi, ThailandHQ checked Sep 16, 202651-20011 contacts →

Partial evidence

“KG Solar is a full service solar energy solution provider headquartered in Bangkok, Thailand.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceBangkok, ThailandHQ checked Sep 16, 202611-5010 contacts →

Indirect evidence

“Symbior Solar provides a one-stop solution combining local experience with international expertise for development, financing, implementation and operation of state of the art…”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceBangkok, ThailandHQ checked Sep 16, 202651-20010 contacts →

Indirect evidence

“Sun LED (Thailand) Co, Ltd.”

Source: RevenueBase Database · checked Sep 16, 2026
10Strong evidenceBangkok Metropolis, ThailandHQ checked Sep 16, 202611-509 contacts →

Strong evidence

Energreen is a leading solar energy solutions provider based in Thailand, with over 10 years of experience in delivering clean, reliable, and cost-effective renewable energy.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceWattana, ThailandHQ checked Sep 16, 202651-2008 contacts →

Indirect evidence

“Power Systems & Solutions Co.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceBangbuathong, ThailandHQ checked Sep 16, 202611-503 contacts →

Indirect evidence

“ECOTECH was founded in 2004.”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceเมือง, ThailandHQ checked Sep 16, 2026201-5003 contacts →

Partial evidence

“We are specialized in designing, managing renewable energy ranging from Solar energy to Solar Roof top and solar farm.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceBangkok, ThailandHQ checked Sep 16, 202611-503 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceBangkok, ThailandHQ checked Sep 16, 20261-102 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceHuai Yai, ThailandHQ checked Sep 16, 202611-501 contacts →

Partial evidence

“NCA-Solar is full service, energy efficiency consulting firm founded on three main principles - Innovation - Sustainability - Efficiency At NCA-Solar we create value for our…”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 16 of 70 clean energy technology companies based in Thailand

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 118 reachable decision-makers.

Free signup · no credit card

View the full list →

Clean energy technology companies based in Thailand at a glance

As of Sep 16, 2026
11.4%Verified-email coverage
14.8Average contacts per company
11-50Median size (employees)
54.3%Largest-city concentration · Bangkok
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
15
11-50
28
51-200
17
201-500
4
501-1,000
1
1,001-5,000
4

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 70 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 clean energy technology companies, 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 Thailand whose own description of what they do matches “clean energy technology companies”. 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 clean energy technology companies), 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 clean energy technology companies, and records with no verified work email. Companies headquartered outside Thailand 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, 118 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 16, 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.

Clean energy technology companies by metro

  • Clean energy technology companies in Bangkok38

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 clean energy technology companies, 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 clean energy technology companies are there based in Thailand?

RevenueBase identified 70 clean energy technology companies headquartered in Thailand 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?

Greenyellow Asia, headquartered in Bangkok, tops this list with the largest team on record.

Which city has the most clean energy technology companies?

Bangkok leads with 38 headquartered companies, followed by Nonthaburi (3) and Krung Thep Maha Nakhon (2).

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 118 verified decision-maker contacts tracked across these 70 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 16, 2026.

Ready to reach these companies? Verified emails and direct dials for all 70 clean energy technology companies based in Thailand. Start with a free account, no credit card.

Download this list →

Related lists

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.