Most Profitable Industries in Thailand by Net Margin (2026)
In short
Financial and insurance is Thailand's most profitable industry, earning a 26.9 percent net margin as of 2 July 2026. Mining, education and professional services follow, each above 12.68 percent. Wholesale and retail, the largest sector by company count, sits at the bottom with a margin of just 1.4 percent. Scale and profitability rarely move together.
Which industry is the most profitable?
Ranked by net margin, financial and insurance leads Thailand with 26.9 percent (DBD, 2026), well clear of the field. Mining and quarrying follows at 13.49 percent, then education at 13.12 percent and professional, scientific and technical services at 12.68 percent. Utilities, health and real estate all clear seven percent. At the other end, the two largest sectors by company count, wholesale and retail and construction, earn the thinnest margins in the economy.
Net profit margin by industry section
- Financial and insurance27
- Mining and quarrying13
- Education13
- Professional, scientific and technical13
- Electricity and gas12
- Human health and social work11
- Real estate8
- Transportation and storage6
- Accommodation and food service5
- Manufacturing4
- Administrative and support4
- Information and communication4
- Construction2
- Wholesale and retail trade1
Figures in percent net margin.
Finance stands apart. The high-volume trading and building sectors keep very little of each baht of revenue.
Industries ranked by net margin
| Industry section | Net margin | Companies |
|---|---|---|
| Financial and insurance | 26.9% | 35,567 |
| Mining and quarrying | 13.49% | 8,231 |
| Education | 13.12% | 13,897 |
| Professional, scientific and technical | 12.68% | 138,962 |
| Electricity and gas | 11.62% | 7,833 |
| Human health and social work | 11.34% | 17,294 |
| Real estate | 7.92% | 149,608 |
| Transportation and storage | 5.89% | 85,273 |
| Accommodation and food service | 4.96% | 83,598 |
| Manufacturing | 4.38% | 230,396 |
| Administrative and support | 4.33% | 100,691 |
| Information and communication | 4.19% | 52,537 |
| Construction | 1.95% | 283,534 |
| Wholesale and retail trade | 1.4% | 715,976 |
Net profit margin and company count by section, as of 2 Jul 2026.
Reading the margins with care
The financial and insurance figure deserves a caveat. Banks and insurers recognise interest and premium income differently from a trading company, so their reported margin looks unusually high next to a retailer that books the full value of goods sold. The broader pattern still holds across the rest of the table. Sectors that sell expertise or control scarce assets, such as professional services, mining and utilities, keep more of each baht than sectors that move large volumes of goods at low markup.
Definitions
- Net margin
- Net profit as a share of revenue. A ten percent margin means ten satang of profit for every baht of revenue.
- Aggregate margin
- Total sector net profit divided by total sector revenue, rather than the average of each company's own margin.
Assumptions
- Only companies that filed a financial statement contribute to the margin.
- Financial-sector revenue recognition differs from other sectors, so its margin is not directly comparable.
Methodology
Net margin is aggregate net profit divided by aggregate revenue for all companies in a section that have filed a financial statement, drawn from the DBD registry as of 2 July 2026. Sections shown are limited to those with at least several thousand reporting companies so the ratio is stable. Margins are section-wide aggregates, not simple averages of individual company margins.
How we verified this
- Financial and insurance was confirmed as the maximum net margin in the section table at 26.9 percent.
- Sections were re-sorted by net margin and the descending order was checked against the published table.
- Wholesale and retail was confirmed as the lowest margin among the large sectors at 1.4 percent.
References
- Department of Business Development. (2026). Registered juristic persons and financial statement aggregates. Ministry of Commerce, Thailand. https://www.dbd.go.th/
Frequently asked questions
Which industry is the most profitable in Thailand?
Financial and insurance, with a net margin of 26.9 percent, the highest of any major sector.
Which large industries are the least profitable?
Wholesale and retail at 1.4 percent and construction at 1.95 percent run the thinnest margins.
Why is the finance margin so high?
Financial firms recognise interest and premium income rather than the gross value of goods sold, so their margin is not directly comparable with a trading business.
Cite this page
Chatpong L. (2026). Most Profitable Industries in Thailand by Net Margin (2026). Max Data Insights. https://maxdatathailand.com/insights/most-profitable-industries-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.