As a requirement of ACRA for starting a business in Singapore you will have to find and designate a Company Secretary. Furthermore you will also need to appoint a professional firm to incorporate the company since foreign individuals do not have a SingPass, which is also required for verification.
Please note that non-Singaporean residents need to appoint a Singaporean resident director to fulfil the Singapore companies' statutory requirements of a resident director.
Minimum requirements to register a Private Limited Company in Singapore: