Energy and Utilities Companies in Thailand 2026
In short
Thailand's electricity, gas and utilities sector holds just 7,833 companies as of 2 July 2026, only 0.4 percent of all classified firms. It earns an 11.62 percent net profit margin, far above the 4.42 percent national average. Reported revenue reaches about 0.84 trillion baht. Reported net profit sits near 97.8 billion baht. Survival runs at 60.3 percent, above the national 50.0 percent. Few companies, deep pockets.
How big and how profitable is the sector?
Thailand's electricity, gas and utilities sector, section D of the registry, counts 7,833 companies as of 2 July 2026 (DBD, 2026). That is 0.4 percent of the 1,986,489 classified firms in the country. Almost nothing, by headcount. Yet those few companies reported about 0.84 trillion baht in revenue. They kept an 11.62 percent net profit margin, more than double the 4.42 percent national average. Reported net profit came to roughly 97.8 billion baht. This is the shape of a capital-heavy sector: a small number of firms sitting on very large balance sheets and turning each baht of revenue into far more profit than the typical Thai company does.
Sector net margin against the national average
- Electricity, gas and utilities12
- National average4
Figures in percent net margin.
The utilities sector keeps more than one baht in nine of its revenue as profit, against roughly four satang for the average firm.
The sector at a glance
| Metric | Value |
|---|---|
| Companies | 7,833 |
| Share of all classified firms | 0.4% |
| Reported revenue | 0.84 trillion baht |
| Reported net profit | 97.8 billion baht |
| Net profit margin | 11.62% |
| National net margin | 4.42% |
| Return on equity | 7.84% |
| Return on assets | 3.99% |
| Survival rate | 60.3% |
| National survival rate | 50.0% |
| Leading firm by revenue | Gulf SRC |
Electricity, gas and utilities, section D of the DBD registry, as of 2 Jul 2026.
Why this matters
Two numbers tell the whole story of this sector. It is one of the smallest by company count and one of the most profitable by margin. That combination is rare, and it points at how power and gas actually work in Thailand. Building a plant or a grid connection takes enormous upfront capital, so the field stays small by design and the survivors are strong. Survival here runs at 60.3 percent against a national 50.0 percent, a full ten points higher, which is what you expect when firms hold long-term supply contracts and physical assets rather than chasing thin trading margins. The leading company by revenue is Gulf SRC, one link in a chain of independent power producers that sell into the national grid. For context, Thailand's total installed power generating capacity stood near 52 gigawatts in 2025 according to national energy statistics (EPPO, 2025). The return figures add the needed caution. A return on equity of 7.84 percent and a return on assets of 3.99 percent are healthy but not spectacular, which is the signature of an asset-heavy business: fat margins on revenue, thinner returns once you divide by the huge capital base underneath. If you want to understand where Thai company profit concentrates, this sector is the clearest example of quality over quantity.
Definitions
- Section D
- The registry class for electricity, gas, steam and air conditioning supply under the Thai Standard Industrial Classification.
- Net profit margin
- Net profit as a share of revenue. An 11.62 percent margin means about eleven and a half satang of profit for every baht of revenue.
- Return on equity
- Net profit as a share of shareholder equity, a measure of what the owners' capital earns.
- Return on assets
- Net profit as a share of total assets, a measure of how hard the whole asset base works.
- Survival rate
- The share of registered firms in the section that remain active rather than closed or dormant.
- Aggregate figure
- A sector-wide total or ratio built from all reporting firms, rather than the average of each firm on its own.
Assumptions
- Only companies that filed a financial statement contribute to revenue, profit and margin figures.
- Revenue and net profit totals are rounded for readability and may differ slightly from unrounded registry sums.
- The leading firm by revenue reflects the registry snapshot as of 2 July 2026 and can change between filing cycles.
Methodology
Figures are aggregates for electricity, gas, steam and air conditioning supply, section D of the Thai Standard Industrial Classification, drawn from the Department of Business Development registry as of 2 July 2026. Net profit margin is total sector net profit divided by total sector revenue across firms that filed a financial statement, not an average of individual company margins. Survival rate is the share of registered firms in the section that remain active. Revenue and net profit are reported totals and are rounded for readability. The national comparison figures cover all classified firms on the same registry snapshot.
How we verified this
- Count share recomputed as 7,833 divided by 1,986,489, which equals 0.3943 percent and rounds to 0.4 percent, matching the brief.
- The 11.62 percent sector margin was confirmed to be well above the 4.42 percent national average, a ratio of 2.63 times.
- Margin cross-checked from raw totals: 97.8 billion net profit divided by 840.98 billion revenue equals 11.63 percent, agreeing with the reported 11.62 percent within rounding.
- Survival rate of 60.3 percent was confirmed to be above the national 50.0 percent, a gap of ten points.
References
- Department of Business Development. (2026). Registered juristic persons and financial statement aggregates. Ministry of Commerce, Thailand. https://www.dbd.go.th/
- Energy Policy and Planning Office. (2025). Electricity statistics of Thailand. Ministry of Energy, Thailand. https://www.eppo.go.th/index.php/en/en-energystatistics/electricity-statistic
Frequently asked questions
How many energy and utilities companies are registered in Thailand?
The electricity, gas and utilities sector counts 7,833 registered companies as of 2 July 2026, about 0.4 percent of all classified firms.
How profitable is the Thai energy and utilities sector?
It reports an 11.62 percent net profit margin, more than double the 4.42 percent national average, on about 0.84 trillion baht of revenue.
Why is such a small sector so profitable?
Power and gas are capital heavy, so few firms compete and the survivors hold long-term contracts and physical assets that carry high margins on revenue.
Which is the largest energy company by revenue?
Gulf SRC leads the sector by reported revenue, one of several independent power producers that supply the national grid.
Cite this page
Chatpong L. (2026). Energy and Utilities Companies in Thailand 2026. Max Data Insights. https://maxdatathailand.com/insights/energy-and-utilities-companies-in-thailand-2026
Data & corrections
Download the data (CSV)Spot something off, or want to ask about the data? Email insights@maxsolutions.co.th. We publish corrections.
Written by
Chatpong L.Founder, Max Data, Max Solutions Co., Ltd.
Chatpong L. leads Max Data, a company-intelligence platform built on Thailand's official business registry. He writes about the structure of the Thai economy using primary registry data. His work covers company formation, industry concentration, and regional business activity.
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This page reports company-level and aggregate statistics only. It names no individuals and makes no claims about any person. Figures are provided for information and may be revised as source data updates.