Top 5-Digit TSIC Codes by Micro Company Count in Thailand (2026)
In short
TSIC code 41002 holds 135,615 micro companies, the most of any 5-digit code in Thailand as of 17 July 2026. That is 9.08 percent of the 1,492,884 coded micro firms. The runner-up, code 68102, holds 53,891, so the leader is 2.5 times the size. The top five codes together hold 285,884 micro companies, or 19.15 percent. Thailand's micro economy is concentrated in a few building and property codes.
Which 5-digit codes hold the most micro companies?
One code towers over the rest. TSIC 41002 holds 135,615 micro companies (DBD, 2026), more than any other 5-digit code by a wide margin. Code 68102 is second with 53,891, then 56101 with 37,861, 41001 with 30,279 and 70209 with 28,238. The leader is 2.5 times the size of the runner-up. Of the 1,492,884 micro companies that carry a 5-digit code, 9.08 percent sit in that single code. The top ten codes together hold 26.72 percent.
Micro companies in the ten largest 5-digit TSIC codes
- TSIC 41002135,615
- TSIC 6810253,891
- TSIC 5610137,861
- TSIC 4100130,279
- TSIC 7020928,238
- TSIC 4659925,697
- TSIC 4610925,278
- TSIC 6810122,731
- TSIC 7310120,110
- TSIC 6810319,209
Figures in micro companies.
Code 41002 alone is larger than codes 68102 and 56101 combined.
Top ten 5-digit codes ranked by micro companies
| Rank | TSIC code | Section | Micro companies | Share of coded micro firms | Micro share of the code | Survival rate |
|---|---|---|---|---|---|---|
| 1 | 41002 | Construction | 135,615 | 9.08% | 81.92% | 35.33% |
| 2 | 68102 | Real estate | 53,891 | 3.61% | 91.19% | 49.04% |
| 3 | 56101 | Accommodation and food service | 37,861 | 2.54% | 73.94% | 53.93% |
| 4 | 41001 | Construction | 30,279 | 2.03% | 78.77% | 53.08% |
| 5 | 70209 | Professional, scientific and technical | 28,238 | 1.89% | 82.84% | 56.99% |
| 6 | 46599 | Wholesale and retail trade | 25,697 | 1.72% | 69.97% | 45.33% |
| 7 | 46109 | Wholesale and retail trade | 25,278 | 1.69% | 90.16% | 32.11% |
| 8 | 68101 | Real estate | 22,731 | 1.52% | 86.74% | 61.08% |
| 9 | 73101 | Professional, scientific and technical | 20,110 | 1.35% | 76.52% | 48.09% |
| 10 | 68103 | Real estate | 19,209 | 1.29% | 73.44% | 66.66% |
Micro company count, share of coded micro firms and survival rate by 5-digit TSIC code, as of 17 Jul 2026.
Why this matters
Micro companies are the registry's default setting. They make up 75.03 percent of all 1,989,709 registered companies, and this ranking shows where they pile up. Construction codes 41002 and 41001 together hold 165,894 micro firms, or 11.11 percent of the coded total. Property codes 68102, 68101 and 68103 add more. These are low-capital, easy-to-register activities, so they attract many tiny entities. Survival tells the other half of the story. Code 41002 has a survival rate of just 35.33 percent, which means 107,058 of its 165,550 registered entities are no longer active. Code 46109 is similar at 32.11 percent. A lender, supplier or marketer who targets the biggest code by headcount is mostly targeting registrations that have gone quiet. Count by active firms before you size a market.
Definitions
- TSIC
- Thailand Standard Industrial Classification, the national scheme that assigns each company a code for its main activity. The 5-digit level is the most detailed.
- Micro company
- A company in the smallest size band recorded in the DBD registry.
- Survival rate
- Active entities divided by all registered entities in a code. A low rate means many registrations are no longer operating.
- Aggregate
- A figure computed across all companies in a group, such as a code, rather than for one company.
Assumptions
- Size bands are those recorded in the registry and may lag a company's true scale.
- Registered does not mean trading, so a high micro count can include dormant entities.
- The 1,492,884 denominator covers micro companies with a 5-digit code only.
- The database refreshed on 17 July 2026, so figures differ slightly from earlier 7 July national constants.
Methodology
Counts come from the Department of Business Development registry, aggregated by 5-digit TSIC code as of 17 July 2026. A company is micro under the size band recorded in the registry. Shares use the 1,492,884 micro companies that carry a 5-digit code as the denominator, which is slightly below the 1,492,979 micro companies in the full size-band count because a small number have no code. Survival rate is active entities divided by all registered entities in the code. The registry does not publish names for 5-digit codes, so codes are shown by number and section.
How we verified this
- Top code share recomputed: 135,615 divided by 1,492,884 coded micro companies equals 9.08 percent.
- Top five sum recomputed: 135,615 plus 53,891 plus 37,861 plus 30,279 plus 28,238 equals 285,884, which is 19.15 percent of 1,492,884.
- Top ten sum recomputed as 398,909, which is 26.72 percent of 1,492,884.
- Leader versus runner-up recomputed: 135,615 divided by 53,891 equals 2.52, shown as 2.5 times.
- Construction pair recomputed: 135,615 plus 30,279 equals 165,894, which is 11.11 percent of 1,492,884.
- Survival for code 41002 recomputed: 58,492 active divided by 165,550 entities equals 35.33 percent, and 165,550 minus 58,492 equals 107,058 inactive.
- Micro share of all registered companies recomputed: 1,492,979 divided by 1,989,709 equals 75.03 percent. Sum of micro counts across all 1,228 codes was queried and equals 1,492,884.
- Table rows were re-sorted by micro count and the descending order matches the chart.
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 5-digit TSIC code has the most micro companies in Thailand?
Code 41002 in the construction section, with 135,615 micro companies as of 17 July 2026.
How concentrated are micro companies across codes?
The top five codes hold 19.15 percent of the 1,492,884 coded micro companies, and the top ten hold 26.72 percent.
Do the biggest micro codes survive well?
Not always. Code 41002 has a survival rate of 35.33 percent and code 46109 has 32.11 percent, while property code 68103 reaches 66.66 percent.
Why can this page not name the industries?
The registry extract carries 5-digit codes without text descriptions, so codes are shown by number and by their lettered section.
Cite this page
Chatpong L. (2026). Top 5-Digit TSIC Codes by Micro Company Count in Thailand (2026). Max Data Insights. https://maxdatathailand.com/insights/top-5-digit-tsic-codes-by-micro-company-count-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.