Thailand company search: check a name or look up a company
Search the Thai company registry by name or registration number, or check whether a company name is available with the DBD before you register. We check it against Thailand's company-name rules and the live DBD database. Free, no login.
How a company name passes the DBD
Thailand's company-name rules are set by the Department of Business Development (DBD), under the Ministry of Commerce, and applied when you reserve a name. Every later step, from your registration to your bank account, chains off an approved name.
Required Limited suffix
A private limited company name must end with Limited or Co., Ltd. to show its limited liability status, under Section 1098 of the Civil and Commercial Code. A public company uses Public Company Limited.
Unique and distinct
The name cannot be identical, or confusingly similar, to a company already registered, checked against the DBD database in both Thai and English. Similar names are allowed only when a distinct word sets them apart, such as ABC Holdings Ltd and ABC Trading Ltd.
No prohibited or restricted words
A name cannot copy a government ministry or agency, imply royal patronage, mislead about what the company does, or be obscene. Some words are barred by law, such as investment, while related words like capital are allowed.
Thai-language reservation
Even if your name is in English, it must also be reserved and registered in Thai script. If the name includes Thailand, it must appear in brackets at the end, such as ABC Co., Ltd. (Thailand).
Clear and easy to read
The name should be straightforward and easy to pronounce in Thai, avoiding overly complex words that could be misread once transcribed.
Patterns that get a name held up
From the names we reserve and register with the DBD for clients. Each one is easy to spot once you know the pattern.
A name that matches an existing company in the DBD database, in Thai or English, is rejected. Differentiate with a distinct word rather than a small spelling change.
A private limited company name that does not end with Limited or Co., Ltd. is not accepted.
Using investment, a ministry or agency name, or anything implying royal patronage holds the name up. Capital is allowed where investment is not.
Reserving only the English name and skipping the Thai-script version is a common miss; both are required.
A name that is hard to pronounce or transcribe into Thai can be queried, since the Thai version must read clearly.
How to search the Thai company registry
Thailand's company registry is maintained by the Department of Business Development (DBD), under the Ministry of Commerce. The DBD's online database, the DBD DataWarehouse, is the official source for company status, type, directors, registered capital, and address.
This tool searches that registry in English. Type a company name, or part of one, or a registration number, and it returns matching companies with their registration number, type, status, and registered address. The same search checks a brand-new name against the rules above, so you can confirm availability and run a company verification in one place. Once your name clears, our company registration in Thailand service files it with the DBD.
Checking a name is free. For due diligence or an acquisition, you can order a full company report through Companies House Thailand, delivered within one business day.
Looking to buy or check a Thai company? We pull the full report and walk you through what it means, delivered within one business day. Get a company report.
What a company report includes
Company profile and status
The registered company name, legal entity type, principal business activities, registration date, and current status.
Corporate governance
Shareholders, the board of directors and their roles, and the registered company address.
Capital structure
Paid-up capital and the shareholder capital table, with each shareholder's shares and percentage ownership.
Company suffixes in Thailand
What the suffix tells you about a company you find in the registry.
| Suffix | Type | Notes |
|---|---|---|
| Co., Ltd. / Limited | Private limited company | The most common form; the name ends with Limited under Section 1098 of the Civil and Commercial Code |
| Public Company Limited / PCL | Public limited company | Can offer shares to the public and list on the Stock Exchange of Thailand |
| Limited Partnership / Ordinary Partnership | Partnership | Registered with the DBD; liability depends on the partnership type |
| Branch / Representative office | Foreign company presence | Part of a parent company abroad, not a separate Thai legal entity |
Run another search or name check
Search the registry by name or registration number, or check whether a new company name is available in the same step.
The rules behind every Thailand company name check
Civil and Commercial Code
Section 1098 and related provisions set the rules for private limited companies, including the Limited suffix and the bar on names identical to an existing company.
DBD company-name regulations
The Department of Business Development's rules on reserving and approving names, restricted and prohibited words, and the Thai-script requirement.
Trademark Act
Thailand's Trademark Act, as amended. The basis for refusing or challenging a name that conflicts with a registered trademark.
Company search questions
What people ask before checking a name or ordering a report.
Is the Thailand company name check free?
Yes. Checking whether a company name is available is free. A full company report on an existing company is paid and delivered within one business day.
How long is a company name reservation valid?
A DBD name reservation is valid for 30 days from approval, with no extension, so you must register the company within that window.
How do I search the Thai company registry?
Type a company name, part of a name, or a registration number into the tool. It searches the DBD's records and returns matching companies with their registration number, type, status, and registered address.
Can I search by company registration number?
Yes. You can look up a company by name or by its 13-digit registration number, which the DBD assigns at incorporation.
What should I do if my proposed name is rejected?
Submit an alternative. It helps to file up to three name options at once, so the DBD can approve the first that clears and you avoid a repeat round.
Are there language requirements for company names in Thailand?
Yes. Even an English name must be reserved and registered in Thai script. If the name includes Thailand, it appears in brackets at the end, such as ABC Co., Ltd. (Thailand).
Is registering a company name the same as trademarking it?
No. A company name is registered with the DBD, while a trademark is protected separately under the Trademark Act. Clearing one does not clear the other.
Can foreigners use the company search?
Yes. Anyone can check name availability or order a report on an existing Thai company, wherever they are based.
Reviewed by Emerhub's Bangkok team. Last updated June 2026. We reserve and register company names with the DBD for clients regularly.
Once you have a name
Talk to our Thailand team
Found the name you want, or the company you need a report on? Our Bangkok team can reserve and register an available name with the DBD, or pull a full company report for your due diligence.
591 Sukhumvit 33, Watthana
Bangkok 10110