In Greece, you can verify the existence and status of a company by using the online platform of the Greek Chamber of Commerce and Industry. The platform provides access to the Central Commercial Register, which contains information about all registered companies in Greece. To verify a company, you will need to provide the company's name and its registration number, which can be found on its official documents and financial reports. Once you have this information, you can access the company's profile, which includes its registered address, contact information, business activities, and other relevant details. In addition to using the Greek Chamber of Commerce and Industry platform, you can also verify a company's status by contacting the relevant government authority, such as the Ministry of Economy and Development or the Greek National Statistical Service. These organizations can provide additional information about a company's financial status and other relevant details.