Private Security Service Act Article 5

Anyone who runs a security company shall apply for a license to the central competent authority by submitting the application form and a business plan. After receiving the license, he/she then may apply to have that company registered. The same shall apply to the establishment of branch offices.
中文原文 保全業法第5條
經營保全業務者,應檢附申請書、營業計畫書,向中央主管機關申請許可,於取得許可證後,始得申請公司設立登記;其設立分公司者,亦同。

English translation for reference only; the Chinese text prevails. Not legal advice.