Letterbox Company vs. Virtual Office: The Difference

A letterbox company exists only on paper: a registered entity with an address but no real business activity behind it, often set up to obscure ownership or money flows. A virtual office is the opposite, a transparent service that gives a genuinely operating business a real address with mail handling, in Vienna from 49 euros per month plus VAT (as of June 2026). The two get mixed up constantly, so here is the clear line between them and how to spot a trustworthy provider.

What is a letterbox company?

A letterbox company is a legal entity without substance: it is registered somewhere, but no actual business happens at its address and nobody is reachable there. The typical purpose is concealment, whether of beneficial owners, of money flows or of tax obligations.

The problem is not the address itself but the emptiness behind it. A company that operates nowhere and cannot be reached at its registered address rightly raises suspicion with banks, authorities and business partners.

What is a virtual office?

A virtual office is a real, physical business address with mail service for a company that genuinely trades, just without its own office space. At 1010 Works, Seitenstettengasse 5/37, 1010 Vienna, your mail is physically received. You collect it in person Monday to Sunday, have it scanned without limits from the Plus plan, or have it forwarded EU-wide in the Premium plan.

The company behind the address is reachable, correctly entered in the Firmenbuch (the Austrian company register) and contactable through its imprint. The business activity is real, the desk simply stands elsewhere: at home, at a client's site or abroad.

What is the decisive difference?

The difference is substance and intent: a letterbox company conceals, a virtual office organises. Point by point:

• Business activity: a virtual office serves a real operating business. A letterbox company is usually an empty shell.
• Reachability: with a virtual office, mail demonstrably arrives and gets processed, at 1010 Works with pickup seven days a week or unlimited scans. At a letterbox company, mail goes nowhere.
• Transparency: virtual office users appear with accurate details in the company register and imprint. Letterbox structures depend on opacity.
• Purpose: a virtual office saves office costs and protects your home address. A letterbox company tries to avoid accountability.

In short: a virtual office user has nothing to hide, only something to organise.

Is a virtual office legal?

Yes. A virtual office is a legal and widely used setup, as long as your company genuinely operates and is reachable at the address. Sole proprietors, Austrian GmbHs and international companies use rented business addresses to keep their home address private or to maintain a Vienna presence without leasing office space.

Reachability is the key requirement: the address must work as a registered address where documents can be served. A real location with staffed mail acceptance delivers exactly that. With a postal power of attorney, 1010 Works also accepts official RSb registered letters in the Premium plan (149 euros per month, or 129 euros with annual billing). RSa letters, by contrast, can never be accepted by any provider, since they require personal delivery to the recipient.

How do you recognise a serious provider?

A serious provider runs a real location, states clear prices and promises nothing impossible. A short checklist:

• Real physical address, not a PO box: the location exists and accepts mail. 1010 Works has operated business addresses at Seitenstettengasse 5/37 since 2015.
• Access to your mail: self-pickup Monday to Sunday or digital delivery by scan.
• Transparent pricing: at 1010 Works, 49 to 149 euros per month plus VAT, cancellable monthly, no hidden fees.
• Honesty about RSa: anyone promising RSa acceptance promises something no provider is allowed to do. Walk away.

If anything is unclear, ask directly through our contact page.

Conclusion

What separates a letterbox company from a virtual office is the core of the business: concealment on one side, organised reachability on the other. A virtual office is legal, transparent and for many companies the economically sensible alternative to renting an office, from 49 euros per month plus VAT, cancellable monthly.

See how the service works in detail on our virtual office in Vienna page. If you mainly need the address for registration and your imprint, start with a business address in Vienna.