Wholesale and Retail: Thailand's Biggest Sector 2026
In short
Wholesale and retail is Thailand's largest sector, with 715,976 registered companies as of 2 July 2026. That is 36.0 percent of all classified firms, so one in three companies is a trader. The sector reports 34.93 trillion baht of revenue, 45.6 percent of the national total. Yet its net profit margin is just 1.40 percent, the thinnest of any major sector. Scale here does not buy profit.
How big is wholesale and retail in Thailand?
Wholesale and retail trade, section G of the registry, is Thailand's largest sector by a wide margin. It counts 715,976 registered companies as of 2 July 2026 (DBD, 2026). That is 36.0 percent of the 1,986,489 firms with a classified activity, so one in every three Thai companies is a trader. The sector also moves the most money. Reported revenue reaches 34.93 trillion baht, which is 45.6 percent of the 76.62 trillion baht booked across the whole economy. No other section comes close on either count.
Net profit margin by sector
- Financial and insurance27
- Manufacturing4
- Wholesale and retail1
Figures in percent net margin.
The sector that carries the most revenue keeps the least of it. Finance stands nineteen times above the trading margin.
Wholesale and retail at a glance
| Measure | Value |
|---|---|
| Registered companies | 715,976 |
| Share of all classified firms | 36.0% |
| Reported revenue | 34.93 trillion baht |
| Share of national revenue | 45.6% |
| Net profit margin | 1.40% |
| Survival rate | 45.5% |
| Return on equity | 3.21% |
Section G of the DBD registry, as of 2 Jul 2026.
Why this matters
Size and profit part ways here. For every 100 baht of revenue a trader books, it keeps about 1.40 baht as net profit, barely one baht in seventy. Manufacturing, the second largest sector, holds 4.38 percent. Financial and insurance firms keep 26.90 percent, roughly nineteen times the trading margin. Thin markup is the nature of moving goods at volume, so the sector runs on turnover rather than on margin. Return on equity tells the same story at 3.21 percent. Survival is close to a coin toss, with 45.5 percent of these companies still active. For a lender or a policy reader the takeaway is plain. The sector that carries the most revenue in Thailand is also the most exposed to a small move in costs, because so little cushion sits between sales and profit. Retail and wholesale trade ranks second only to manufacturing in its share of national output (NESDC, 2025), which makes that thin margin a national question rather than a niche one.
Definitions
- Classified firms
- Registered companies that have a primary industry activity recorded in the registry, which lets them be sorted into a sector.
- Net profit margin
- Net profit as a share of revenue. A 1.40 percent margin means 1.40 baht of profit for every 100 baht of revenue.
- Aggregate margin
- Total sector net profit divided by total sector revenue, rather than the average of each company's own margin.
- Survival rate
- The share of registered companies in the sector that are still active rather than dissolved or dormant.
- Return on equity
- Net profit as a share of shareholder equity, a measure of how much profit the sector earns on the capital invested in it.
Assumptions
- Only companies that filed a financial statement contribute to the revenue, margin, and return figures.
- Sector totals depend on the primary activity code recorded in the registry, so a firm that trades as a side activity may sit in another section.
- Aggregate margin can be pulled by a small number of very large traders and is not the experience of a typical firm.
Methodology
Figures are aggregated from financial statements filed by juristic persons in the Department of Business Development registry, section G of the TSIC activity codes, as of 2 July 2026. Company count covers firms with a classified primary activity. Revenue and net profit are section-wide sums across companies that filed a statement, so margin is aggregate net profit divided by aggregate revenue rather than an average of individual firm margins. Survival rate is the share of registered companies still active. Ratios in the text recompute directly from these raw registry totals.
How we verified this
- Count share recomputed from raw registry totals: 715,976 divided by 1,986,489 equals 0.3604, which rounds to 36.0 percent.
- Revenue share recomputed from raw totals: 34,929,351,730,992 divided by 76,623,676,606,250 equals 0.4559, which rounds to 45.6 percent.
- The 1.40 percent net margin was confirmed as the lowest among the large sectors, below manufacturing at 4.38 percent and financial and insurance at 26.90 percent.
- The finance to trade margin ratio recomputes as 26.90 divided by 1.40 equals 19.2, supporting the stated nineteen times gap.
- The plain-language claims check out: 36.0 percent is about one in three, and 1.40 percent is about one baht in seventy since 100 divided by 1.40 is 71.4.
References
- Department of Business Development. (2026). Registered juristic persons and financial statement aggregates by industry. Ministry of Commerce, Thailand. https://www.dbd.go.th/
- Office of the National Economic and Social Development Council. (2025). Thai economic performance and the outlook. NESDC, Thailand. https://www.nesdc.go.th/
Frequently asked questions
What is the biggest business sector in Thailand?
Wholesale and retail trade, with 715,976 registered companies as of 2 July 2026. That is 36.0 percent of all classified firms and 45.6 percent of reported revenue, the largest on both measures.
Is wholesale and retail a profitable sector in Thailand?
It is the least profitable major sector by margin. Traders keep a net 1.40 percent of revenue, against 4.38 percent in manufacturing and 26.90 percent in financial and insurance.
Why is the trading margin so thin?
Wholesale and retail runs on volume, not markup. Companies move large amounts of goods at low margin, so profit depends on turnover rather than on a wide gap between cost and price.
How many Thai companies are traders?
About one in three. Of 1,986,489 firms with a classified activity, 715,976 are in wholesale and retail trade as of 2 July 2026.
Cite this page
Chatpong L. (2026). Wholesale and Retail: Thailand's Biggest Sector 2026. Max Data Insights. https://maxdatathailand.com/insights/wholesale-and-retail-thailands-biggest-sector-2026
Data & corrections
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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.