Can Seychelles company documents be apostilled?

Yes. Seychelles has been a party to the Hague Apostille Convention since 1979, so apostilled Seychelles documents are accepted in other member countries without consular legalisation. Banks and EMIs often ask for an apostilled certificate of incorporation and a recent certificate of incumbency or good standing.

Certification and apostille

Source: Status table: Convention abolishing the requirement of legalisation for foreign public documents, Hague Conference on Private International Law (HCCH)