Top 5-Digit TSIC Codes by Total Assets in Thailand 2026
In short
TSIC 64191, Thailand's commercial banking code, holds 22.75 trillion baht in total assets as of 14 August 2026. That is 21.93 percent of the national total. The second ranked code, holding companies under TSIC 64202, holds 8.47 trillion baht. TSIC 64191's total is 2.68 times larger. Life insurance, non-residential real estate and petroleum refining round out the top five. Those five codes are just 0.5 percent of all 998 codes with asset data. Together they hold 38.44 percent of Thailand's 103.75 trillion baht in corporate assets. Only 19,740 companies sit inside them. That is 2.76 percent of that year's filers.
Which 5-digit industry code holds the most total assets?
Rank Thailand's roughly 1,000 five digit TSIC codes by total reported assets for statement year 2568, the filing year ending in 2025, and one code separates itself from the entire field. TSIC 64191, the code covering commercial banking, reported 22.75 trillion baht in total assets (DBD, 2026). That is 21.93 percent of the 103.75 trillion baht held across all 998 codes with asset data. Just 19 companies file under that code, led by Bangkok Bank Public Company Limited. The second ranked code, TSIC 64202, holding companies, carries 8.47 trillion baht from 5,104 filers. The leader's balance sheet runs 2.68 times larger. Life insurance under TSIC 65110 follows at 3.16 trillion baht, then non-residential real estate under TSIC 68104 at 3.06 trillion baht, then petroleum refining under TSIC 19201 at 2.43 trillion baht. Together these five codes hold 39.88 trillion baht of corporate assets. That is 38.44 percent of every baht on the registry. A combined 19,740 companies file under them.
Total assets by top 5-digit TSIC code
- 64191 Commercial banking23
- 64202 Holding companies8
- 65110 Life insurance3
- 68104 Non-residential real estate3
- 19201 Petroleum refining2
Figures in trillion baht in total assets, statement year 2568.
The leading code alone holds more assets than the other four combined, 22.75 trillion baht against 17.13 trillion baht in codes two through five together.
The top 5 TSIC codes by total assets
| Rank | TSIC code | Industry activity | Section | Total assets, trillion baht | Companies | Share of national assets | Cumulative share |
|---|---|---|---|---|---|---|---|
| 1 | 64191 | Commercial banking | K | 23 | 19 | 21.93% | 21.93% |
| 2 | 64202 | Holding companies | K | 8 | 5,104 | 8.17% | 30.10% |
| 3 | 65110 | Life insurance | K | 3 | 93 | 3.05% | 33.15% |
| 4 | 68104 | Non-residential real estate | L | 3 | 14,432 | 2.95% | 36.09% |
| 5 | 19201 | Petroleum refining | C | 2 | 92 | 2.35% | 38.44% |
Total assets, filing companies, and cumulative share of the national asset base, ranked by 5 digit TSIC code, statement year 2568, as of 14 Aug 2026.
Why asset concentration runs sharper than revenue concentration
Assets cluster far tighter than revenue does inside Thailand's registry. In the same statement year, the single busiest revenue code, a gold and bullion trading code inside wholesale and retail trade, holds 13.04 percent of national revenue. The single busiest asset code holds 21.93 percent of national assets. That concentration runs 1.68 times sharper. The gap makes sense once the business model is considered. A bank books deposits and loans on its balance sheet at full value, while a trading company only books the margin it earns on goods passing through its hands. Independent market data on Thailand's banking system puts its total assets in a comparable multi trillion baht range (Statista, 2025). That accounting difference means total assets say far more about the size of a balance sheet than about the size of a year's business. Return on assets makes the same point from another angle. TSIC 64191 earns just 1.08 percent return on assets, below the 2.55 percent national average. It sits on more assets than any other code in the country despite that low return. Holding companies under TSIC 64202 turn a sharper 3.10 percent, and life insurers under TSIC 65110 sit lower again at 1.87 percent. Anyone using total assets as a proxy for market power in Thailand needs a second number next to it. The industry that owns the most, and the industry that earns the most from what it owns, are rarely the same industry.
Definitions
- TSIC code
- The Thailand Standard Industrial Classification code assigned to a registered company. Codes run to five digits, and every code rolls up into one of 21 lettered industry sections.
- Total assets
- The sum of everything a company reports owning on its balance sheet, cash, receivables, property, equipment and financial holdings, before subtracting liabilities.
- Statement year 2568
- The Buddhist calendar year used in the DBD registry, equal to 2025 in the Gregorian calendar.
- Filing company
- A registered company that submitted a balance sheet and income statement to the DBD for the statement year measured, as distinct from every company ever registered under a code.
- Return on assets
- Net profit divided by total assets, a measure of how much income a company or industry generates from the assets it holds.
Assumptions
- Only the 998 five digit TSIC codes with reported total assets for statement year 2568 are included in the national base used for share calculations.
- Total assets reflect book value as reported on each company's filed balance sheet, not current market value.
- The registry does not publish a plain language description for five digit codes, so the top 5 codes are identified by number, section, and top filer, cross checked against the published TSIC 2009 structure.
- Statement year 2568, corresponding to 2025, is treated as the latest complete filing year, since more recent years remain under filed.
Methodology
Total assets, revenue, net profit, and company counts are aggregated by 5 digit TSIC industry code for statement year 2568, the Buddhist calendar year equal to 2025, the latest filing year with a complete set of financial statements, drawn from the DBD registry's per code, per year aggregate table as of 14 August 2026. A company counts toward a code's totals only if it filed a financial statement for that statement year, so figures here can differ from a code's all time registered company count. National totals sum every 5 digit code with reported asset data for that year, 998 codes covering 714,157 filing companies. The registry does not publish a plain language description field for 5 digit codes, so the activity names used for the top 5 codes were identified from each code's largest filing company and cross checked against Thailand's published TSIC 2009 classification structure, the same method used across this site's other 5 digit code rankings.
How we verified this
- Summed the top 5 codes' total assets, 22,751,878,020,378 plus 8,473,973,076,509.27 plus 3,161,242,458,664.98 plus 3,057,901,535,285.55 plus 2,433,255,485,723.03, equal to 39,878,250,576,560.83 baht, then divided by the national total of 103,746,513,374,770.89 baht across 998 codes to get 38.44 percent.
- Recomputed the top code's own share as 22,751,878,020,378 divided by 103,746,513,374,770.89, equal to 21.93 percent, and confirmed by sorting all 998 codes by total_assets that TSIC 64191 is the maximum.
- Divided the top code's assets by the second code's assets, 22,751,878,020,378 over 8,473,973,076,509.27, equal to 2.68, confirming the leader holds more than double the runner up.
- Summed codes two through five, 8,473,973,076,509.27 plus 3,161,242,458,664.98 plus 3,057,901,535,285.55 plus 2,433,255,485,723.03, equal to 17,126,372,556,182.83 baht, confirming it is less than the top code's 22,751,878,020,378 baht alone.
- Queried statement year 2568 revenue separately: the top revenue code, TSIC 47732, holds 8,848,365,418,737.62 baht of the 67,867,699,924,183.86 baht national revenue total for that year, 13.04 percent, versus the top asset code's 21.93 percent share of assets, confirming assets are 1.68 times more concentrated at the top than revenue.
- Summed the top 5 codes' filing company counts, 19 plus 5,104 plus 93 plus 14,432 plus 92, equal to 19,740, then divided by the 714,157 companies that filed for statement year 2568 to get 2.76 percent.
References
- Department of Business Development. (2026). Registered juristic persons and financial statement aggregates. Ministry of Commerce, Thailand. https://www.dbd.go.th/
- Statista. (2025). Thailand: value of total assets among commercial banks from 2013 to 2025. https://www.statista.com/statistics/1273119/thailand-value-of-assets-among-commercial-banks/
Frequently asked questions
Which industry code holds the most total assets in Thailand?
TSIC 64191, the code covering commercial banking, holds 22.75 trillion baht in total assets as of 14 August 2026. That is 21.93 percent of the national total.
How much more does the top code hold than the second ranked code?
TSIC 64191 holds 2.68 times the assets of TSIC 64202, the holding companies code. That is 22.75 trillion baht against 8.47 trillion baht.
Is the biggest industry code by assets the same as the biggest by revenue?
No. The top revenue code for the same year holds 13.04 percent of national revenue, well below the top asset code's 21.93 percent share of national assets. A bank's loans sit on its balance sheet at full value while a trading company only books its margin.
How many companies actually sit inside the top code?
Only 19 companies filed under TSIC 64191 for statement year 2568, led by Bangkok Bank Public Company Limited, the code's largest filer by revenue.
Cite this page
Chatpong L. (2026). Top 5-Digit TSIC Codes by Total Assets in Thailand 2026. Max Data Insights. https://maxdatathailand.com/insights/top-5-digit-tsic-codes-by-total-assets-in-thailand-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.