Top 5-Digit TSIC Codes by Total Net Profit in Thailand 2026
In short
Holding companies, Thai industry code 64202, generated 340.18 billion baht in combined net profit, more than any other 5-digit TSIC code in the country. Commercial banking ranks second at 246.58 billion baht, about 38 percent smaller despite covering just 19 companies. Computer and peripheral manufacturing actually posts a higher net margin than banking, 22.52 percent against 21.84 percent, yet a smaller revenue base leaves it in third place on total profit. The top five codes combined hold 27.91 percent of the nation's entire net profit pool, as of 17 Jul 2026.
Which 5-digit industry code produces the most total profit in Thailand?
Rank Thai industries by total baht of net profit, not by margin, and one code towers over the rest. TSIC 64202, the code for holding companies, generated 340.18 billion baht in combined net profit as of 17 Jul 2026 (DBD, 2026). That is about 38 percent more than the second ranked code, commercial banking under TSIC 64191, which posted 246.58 billion baht from just 19 companies. Computer and peripheral equipment manufacturing, TSIC 26209, actually carries a higher net margin than commercial banking, 22.52 percent against 21.84 percent, yet it ranks third on total profit because its revenue base is smaller. Motor vehicle parts manufacturing and electric power generation round out the top five, each clearing 85 billion baht. Together these five codes hold 27.91 percent of every baht of net profit reported across Thailand's entire company registry.
Total net profit by top 5-digit TSIC code
- 64202 Holding companies340
- 64191 Commercial banking247
- 26209 Computer and peripheral manufacturing150
- 29309 Motor vehicle parts and accessories96
- 35101 Electric power generation86
Figures in billion baht net profit.
Only 19 companies carry the entire commercial banking code, yet they out earn the 3,461 companies filing under motor vehicle parts manufacturing.
The top 5 TSIC codes by total net profit
| TSIC code | Industry activity | Net profit (billion baht) | Net margin | Companies |
|---|---|---|---|---|
| 64202 | Holding companies | 340.18 | 52.71% | 8,323 |
| 64191 | Commercial banking | 246.58 | 21.84% | 19 |
| 26209 | Computer and peripheral equipment manufacturing | 149.87 | 22.52% | 139 |
| 29309 | Motor vehicle parts and accessories manufacturing | 95.90 | 6.08% | 3,461 |
| 35101 | Electric power generation | 85.94 | 11.41% | 6,981 |
Total net profit, net margin, and company count by 5-digit TSIC code, as of 17 Jul 2026.
Why the total profit ranking matters more than the margin ranking
A margin leaderboard rewards a code for keeping a large share of a small revenue base. A total profit leaderboard rewards whichever code moves the most baht into the bottom line, no matter how many companies share that pool. That distinction changes the story. TSIC 64202 holds only 0.42 percent of Thailand's 1,989,709 registered companies, yet it captures 10.34 percent of the nation's entire net profit, a share close to 25 times larger than its share of company count. The same code earns just 0.81 percent of national revenue while claiming 10.34 percent of national profit, nearly 13 times its weight in the top line. For anyone pricing risk, allocating credit, or hunting for where Thailand's corporate wealth actually sits, the total profit ranking is the one that counts. For context, Bank of Thailand data reported system wide commercial bank profit near 272 billion baht for full year 2025, a similar order of magnitude to the 246.58 billion baht recorded here under TSIC 64191, even though the two measures cover different periods and a different set of reporting entities (Nation Thailand, 2026). A thin margin spread across a giant revenue base can still lose to a fat margin sitting on a smaller but highly concentrated pool of capital.
Definitions
- TSIC code
- Thailand Standard Industrial Classification code. A 5-digit number that identifies a company's specific industry activity, based on the International Standard Industrial Classification revision 4.
- Net profit
- Profit after all expenses, taxes, and costs, as reported on a company's filed financial statement.
- Net margin
- Net profit as a share of revenue for every company in a code combined, not the average of each company's own margin.
- Holding company
- A company whose main activity is owning equity stakes in other companies rather than producing goods or services directly.
- Aggregate
- A total summed across every company in a group, rather than a single company's own figure.
Assumptions
- Only companies that filed a financial statement with the DBD contribute to these totals.
- TSIC 5-digit descriptions are not stored in the source aggregate table and are matched here to the published Thailand Standard Industrial Classification list.
- Holding companies under TSIC 64202 may include both financial and non-financial parent entities, a distinction the aggregate data does not separate.
- Ranking by total profit favors codes with either very large companies or very large numbers of companies, and is not a measure of typical company performance.
Methodology
Total net profit and net margin are computed per 5-digit TSIC code as the sum of net profit and revenue across every company that filed a financial statement with Thailand's Department of Business Development, as of 17 Jul 2026. TSIC code descriptions are not stored in the aggregate database table and are matched here to the published Thailand Standard Industrial Classification 2009 list, based on ISIC Revision 4. Ranking is by total baht of net profit, not by average or per company margin.
How we verified this
- Recomputed the net margin of TSIC 64202 as 340,180,752,176.74 divided by 645,323,005,080.28, equal to 52.71 percent, matching the stored net_margin column.
- Summed the total net profit of the top 5 TSIC codes: 340,180,752,176.74 plus 246,583,317,677 plus 149,867,060,176.17 plus 95,900,086,914.18 plus 85,941,474,673.91 equals 918,472,691,618.00 baht.
- Divided that sum by the national total net profit of 3,290,602,409,386.72 to get a top 5 share of 27.91 percent.
- Divided TSIC 64202's net profit of 340,180,752,176.74 by the national total of 3,290,602,409,386.72 to get a 10.34 percent share, then compared it against its 0.42 percent share of the 1,989,709 registered companies, confirming the profit share is close to 25 times the company count share.
- Divided TSIC 64202's net profit by TSIC 64191's net profit, 340,180,752,176.74 over 246,583,317,677, confirming holding companies earn about 38 percent more than the second ranked code.
References
- Department of Business Development. (2026). Registered juristic persons and financial statement aggregates. Ministry of Commerce, Thailand. https://www.dbd.go.th/
- Nation Thailand. (2026). Thai banking system remains stable in 2025 despite lower profits. https://www.nationthailand.com/blogs/business/banking-finance/40062641
Frequently asked questions
Which 5-digit TSIC code generates the most total net profit in Thailand?
TSIC 64202, the code for holding companies, generated 340.18 billion baht in combined net profit as of 17 Jul 2026, more than any other 5-digit industry code.
Is the highest margin industry code also the one with the most total profit?
Not always. Computer and peripheral equipment manufacturing, TSIC 26209, posts a higher net margin than commercial banking, but banking still ranks second on total profit because its revenue base is far larger.
How concentrated is profit in the top TSIC code?
TSIC 64202 holds just 0.42 percent of Thailand's registered companies but captures 10.34 percent of the nation's total net profit.
Cite this page
Chatpong L. (2026). Top 5-Digit TSIC Codes by Total Net Profit in Thailand 2026. Max Data Insights. https://maxdatathailand.com/insights/top-5-digit-tsic-codes-by-total-net-profit-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.