Registered office or virtual address in Berlin. A business address lets you use a business centre address for trade registration, the commercial register and your imprint without renting an office. To serve as an address for legal service, the centre must accept mail and deliveries for your company and show your company name; check this in the contract.
The catalogue lists 165 business addresses and 165 virtual offices in 18 districts, €92–138 a month. If you later need desks, the same buildings offer coworking and offices for rent.