The Guinea-Bissau International Ships Registry (GB ISR) extends its warmest wishes to all our customers, business partners, and stakeholders for a Merry Christmas and a peaceful, healthy, and prosperous New Year 2026. As we conclude the year, we wish to express our sincere appreciation for the trust, cooperation, and constructive engagement shown throughout the year. Your continued support and collaboration are highly valued and remain essential to our shared commitment to quality, compliance, and professionalism in the international maritime sector.
Holiday Office Closure – General Ships Registrar’s Office
Please be advised that the GB ISR General Ships Registrar’s Office will be closed on the following dates due to the seasonal holiday period:
- Thursday, 25 December 2025
- Friday, 26 December 2025
- Thursday, 1 January 2026
- Tuesday, 6 January 2026
Normal operations will resume on the next working day following each closure.
We thank you for your understanding and look forward to continuing our cooperation and achieving further progress together in the year ahead.
Guinea-Bissau International Ships Registry (GB ISR)

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