Your yacht under the Polish flag – handled by sailors in Poland.
Polish flag, radio licence and EPIRB – sorted by sailors in Poland.
RegisterYachts by Seven Seas handles Polish yacht registration (REJA24), the Polish ship radio licence with MMSI, EPIRB registration and a Polish address for service – for owners from any country. We are a Polish yacht delivery company based near Warsaw (in business since 1998, delivering yachts since 2015, with a network of more than 400 delivery skippers): delivery skippers and yacht owners, not clerks. We talk to the Polish offices in Polish, check your documents free before you pay, and a Polish lawyer is available on request.
Why owners choose us
We are in Poland
Our office is in Mroków near Warsaw, about 30 minutes from the Polish Yachting Association (PZŻ) and the head office of the telecoms authority (UKE). From Australia or America Poland is far away – for us every Polish office is a phone call in Polish or a few hours’ drive. We can also receive official letters for you.
Delivery skippers and yacht owners
We are not a paperwork agency. Our network of more than 400 delivery skippers moves yachts across seas and oceans, also in winter – from small yachts under 30 ft to tall ships – and we sail our own boats. We know what a yacht needs on board to sail legally and stay insured, also between purchase and registration.
A lawyer when you need one
For legal questions beyond the paperwork, a Polish lawyer is available on request. This is an external service, paid separately – we tell you the cost before anything starts.
Who you deal with

Marek Belniak – founder · delivery skipper. Marek founded Seven Seas in 1998 and has been sailing for more than 45 years. At Seven Seas Yacht Delivery he coordinates flag registration, and at RegisterYachts by Seven Seas he oversees every registration and licence case.
You write to one address and get answers from people who know yachts. We check your documents free of charge before you pay, and we tell you plainly what is missing.
Registration and yacht delivery – one company
RegisterYachts by Seven Seas is part of Seven Seas, a Polish yacht delivery company (Seven Seas Marek Belniak, Al. Krakowska 60, 05-552 Mroków). Our delivery skippers move yachts worldwide, from small yachts under 30 ft to tall ships. Many owners register a yacht in Poland right after buying her – and then she has to get to her new home port.
Need her delivered? Get a free delivery quote at skipperdelivery.com – within 24 hours, no obligations.
Sailing while you wait for the registration card
When your REJA24 application is complete, the registering body issues a certificate that the application was filed (Yacht Registration Act, art. 9 sec. 2). The owner may use it until the registration document is issued, and many sailors already sail on the basis of this certificate – Marek has done so himself. Important: tell your insurer and make sure your insurance is valid. The registration document should follow within 30 days of a complete application (official certificate template). We know from yacht delivery how to plan a passage around these dates.
Start with a free document check
Tell us about your yacht. We check everything before you pay.