Thailand's Most Dormant Industry Code Is TSIC 41002, 2026
In short
TSIC 41002, Thailand's building construction code, carries 107,058 inactive companies as of 17 July 2026, more than any other 5-digit industry code in the country. Its own active count is 58,492. That works out to 1.8 dormant firms for every one still active. It also beats the second and third largest dormant pools combined, real estate code 68102 and restaurant code 56101. One in nine of Thailand's 993,336 dormant companies sits inside this single code. Building construction crowds in more entrants than almost any other trade, and it abandons more of them too.
Which industry code carries the most dormant companies?
Rank all of Thailand's roughly 1,228 five digit industry codes by inactive company count and one code towers over the rest. TSIC 41002 carries 107,058 inactive companies as of 17 July 2026 (DBD, 2026). Its own active count sits at 58,492. That works out to 1.8 dormant firms for every one still active. No other code comes close. The second largest dormant pool, real estate code 68102, holds 30,115 inactive companies. The third, restaurant code 56101, holds 23,588. Add those two together and TSIC 41002 still beats their combined total by a factor of 1.99. The DBD registry does not publish a plain language name for five digit codes, but TSIC 41002 sits inside section F, construction, and its top filer by revenue is China State Construction Engineering Thailand Co., Ltd. That places the code squarely in general building construction, a trade that a smaller sibling code, TSIC 41001, also serves with 18,036 inactive companies of its own.
Top 5 industry codes by inactive company count
- TSIC 41002, construction107,058
- TSIC 68102, real estate30,115
- TSIC 56101, restaurants23,588
- TSIC 46599, wholesale trade20,081
- TSIC 46109, wholesale trade19,033
Figures in inactive companies.
Building construction sits alone at the top. The next four codes span real estate, restaurants and wholesale trade.
Thailand's five largest dormant company pools by industry code
| TSIC code | Section | Inactive companies | Active companies | Total companies | Top filer |
|---|---|---|---|---|---|
| 41002 | F, construction | 107,058 | 58,492 | 165,550 | China State Construction Engineering Thailand Co., Ltd. |
| 68102 | L, real estate | 30,115 | 28,980 | 59,095 | Sansiri Public Company Limited |
| 56101 | I, accommodation and food service | 23,588 | 27,616 | 51,204 | The Minor Food Group Public Company Limited |
| 46599 | G, wholesale and retail trade | 20,081 | 16,647 | 36,728 | Demier International Company Limited |
| 46109 | G, wholesale and retail trade | 19,033 | 9,003 | 28,036 | Thai-MC Co., Ltd. |
Inactive, active and total company counts by 5-digit TSIC code, as of 17 Jul 2026.
Why one construction code matters so much
A single five digit code holding more than a tenth of the nation's dormant companies is not a rounding error. It is a signal about how building construction firms form and fail in Thailand. General contractors often register a company around one project, finish the job, stop filing, and never formally dissolve, which stacks inactive registrations inside the same narrow code year after year. Section F, construction, already carries one of the weakest survival rates of any major sector, and TSIC 41002 is the code doing most of that damage on its own. Credit access adds to the pressure. The Bank of Thailand puts the national SME loan rejection rate at 60 to 70 percent in 2026 (Nation Thailand, 2026). A new business with no financial history faces a 78 percent rejection rate on top of that. A one-project construction company with a short track record sits squarely inside that high-rejection group, which leaves it little reason to keep filing once the project ends rather than simply going quiet. A dormant registration is not automatically a failed company. Some are shell entities, some are project vehicles waiting on a new contract, and some simply stopped filing without closing formally. What the registry shows clearly is where that dormancy piles up, and general building construction is where it piles up most.
Definitions
- TSIC code
- Thailand Standard Industrial Classification code. The five digit level is the most detailed industry code the DBD registry assigns to a company.
- Active company
- A company whose registration status in the DBD registry is currently active.
- Inactive or dormant company
- A registered company that is not currently active, including statuses such as suspended, struck off, or simply no longer filing.
- Survival rate
- The share of all companies ever registered under a code that remain active today, expressed as a percentage.
- Section
- The single letter industry group, from A to U, that a five digit TSIC code sits inside. Section F is construction.
- Aggregate
- A total or ratio computed across every company in a group, rather than the average of individual companies' own figures.
Assumptions
- Inactive groups together several non-active registry statuses, so the figure includes both formally closed companies and ones that have simply stopped filing without dissolving.
- The DBD registry does not publish a plain language description for five digit codes, so the building construction label for TSIC 41002 rests on its section F classification and its top filer rather than a field in the database.
- Company counts reflect registration status at the time of the query, not necessarily current operating activity on the ground.
Methodology
Active and inactive counts come from the DBD registry's five digit TSIC aggregates as of 17 July 2026. A company counts as active when its registration status in the registry is active, and inactive covers every other status, including suspended, struck off and not currently filing. Rankings cover all 1,228 five digit codes that carry at least one registered company. Section letters and top filer names are drawn from the same aggregate table, since the registry does not publish a plain language description for five digit codes.
How we verified this
- 107,058 inactive plus 58,492 active equals the TSIC 41002 total of 165,550 companies, matching the queried entity count.
- 107,058 divided by the national dormant total of 993,336 recomputes to 10.8 percent.
- 30,115 plus 23,588, the next two largest dormant pools, sum to 53,703, and 107,058 divided by 53,703 recomputes to 1.99 times.
- 107,058 divided by 58,492 recomputes to 1.8, the ratio of inactive to active companies inside TSIC 41002.
- 165,550 divided by the section F total of 283,534 recomputes to 58.4 percent, confirming TSIC 41002 alone holds the majority of all companies, active and inactive, registered under construction.
- Summing inactive_count across all 1,228 rows of market_tsic_insight returns 993,336, matching the national dormant total used as the denominator.
References
- Department of Business Development. (2026). Registered juristic persons by industry classification. Ministry of Commerce, Thailand. https://www.dbd.go.th/
- Nation Thailand. (2026). Bank of Thailand sets out three steps to address SME credit crisis. https://www.nationthailand.com/business/banking-finance/40070829
Frequently asked questions
Which Thai industry code has the most dormant companies?
TSIC 41002, a general building construction code in section F, carries 107,058 inactive companies, more than any other five digit code in the DBD registry.
How many active companies does TSIC 41002 have?
58,492 companies inside TSIC 41002 are active, so the code holds 1.8 dormant companies for every active one.
What is the second largest dormant company pool in Thailand?
Real estate code 68102 holds 30,115 inactive companies, the second largest pool, followed by restaurant code 56101 at 23,588.
Does a dormant company mean the business failed?
Not always. Inactive covers several registry statuses including suspended and not currently filing, so some dormant companies are shells or project vehicles rather than confirmed failures.
Cite this page
Chatpong L. (2026). Thailand's Most Dormant Industry Code Is TSIC 41002, 2026. Max Data Insights. https://maxdatathailand.com/insights/which-thai-industry-codes-carry-the-most-dormant-companies-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.