A company name: travel agency co., ltd

This should be the most authentic.

Ltd is the abbreviation of limited, limited.

Co is the abbreviation of company, which means company. Generally speaking, it doesn't mean the company mentioned above. Corporation generally refers to a group company. There is no legal difference, but it is generally referred to as a company limited by shares.

Literal translation is a travel agency limited liability company.

Travel agency does refer to travel agency, but the company name should not be used in this way.