Company lists · Data refreshed October 2026

Top 11 Energy development companies based in Thailand

RevenueBase identified 41 company matches for energy development companies associated with Thailand as of October 2026 and tracks 5,492 professional contacts across them, including 1,715 with verified work emails. Bangkok is the largest hub.

This list covers company matches for energy development companies 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 October 12, 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 Oct 12, 2026 How this list was built
41Companies
5,492Contacts tracked
1,715Verified emails
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The 11 largest energy development companies based in Thailand

Ranked by team size
Top 11 of 41 company matches for energy development companies based in Thailand, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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 matchChatuchak, ThailandHQ recorded Oct 12, 20261,001-5,0003,997 contacts →

Exact match

“PTTEP conducts business in petroleum exploration, development, and production.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2Exact matchBangkok, ThailandHQ recorded Oct 12, 2026201-500182 contacts →

Exact match

“The Electricity Generating Public Company Limited or EGCO is the first independent power producer in Thailand.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3Exact matchSrimahaphote, ThailandHQ recorded Oct 12, 20261,001-5,000178 contacts →

Exact match

“National Power Supply Public Co, Ltd.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4Exact matchBangrak, ThailandHQ recorded Oct 12, 2026501-1,000102 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 · Oct 12, 2026 · View company records in RevenueBase
5Exact matchBang Na Nuea, ThailandHQ recorded Oct 12, 202651-20057 contacts →

Exact match

“Babcock Power is a global leader providing innovative energy-related products, advanced technology and services to the power generation, combined cycle, industrial, environmental…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6Exact matchBangkok, ThailandHQ recorded Oct 12, 20261,001-5,00050 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7Exact matchDindang, ThailandHQ recorded Oct 12, 202651-20044 contacts →

Exact match

“PSS Group of Companies is responsible for executing the engineering business and is fully owned by Y Cube Holdings, a multi sector business providing world class service to…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8Exact matchPatumwan, ThailandHQ recorded Oct 12, 202651-20043 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 · Oct 12, 2026 · View company records in RevenueBase
9Exact matchBangkok, ThailandHQ recorded Oct 12, 202611-5012 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10Exact matchNonthaburi, ThailandHQ recorded Oct 12, 202611-504 contacts →

Exact match

“ECOTECH was founded in 2004.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11Exact matchBangkok, ThailandHQ recorded Oct 12, 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 · Oct 12, 2026 · View company records in RevenueBase

Showing 11 of 41 energy development companies based in Thailand

See the full list, filter by size, metro and specialty, and access 1,715 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy development companies based in Thailand at a glance

As of Oct 12, 2026
31.2%Verified-email coverage
134.0Average contacts per company
11-50Median size (employees)
58.5%Largest-city concentration · Bangkok
Oct 12, 2026Page data refreshed

Companies by employee count

1-10
5
11-50
16
51-200
10
201-500
3
501-1,000
2
1,001-5,000
5

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 41 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 “energy development companies” 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 1,715 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 October 12, 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 “energy development companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy development companies are there based in Thailand?

RevenueBase identified 41 company matches for energy development companies associated with Thailand as of October 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?

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

Which city has the most energy development companies?

Bangkok leads with 24 company records, followed by Bang Kruai (1) 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 1,715 professional contacts with verified work emails tracked across these 41 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 October 12, 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.