Düzgit Group has been providing ship sub-agency services in the Turkish Straits since 1966, maintaining a continuous 24/7 operational presence in one of the world’s busiest and most sensitive maritime corridors.
We support an average of approximately 60 vessels per day, serving some of the most quality- and compliance-driven principals in the region. Our operations are conducted without interruption, with continuous availability to agents, suppliers, and Masters via telephone and VHF at all times.
Operational Companies & Offices
Ship sub-agency services are provided by the following group companies, operating from strategically located offices along the Turkish Straits: Our activities are supported by www.turkishstraits.com, a real-time information platform fed by our three offices. The platform provides live Straits movement data, automated e-mail and SMS notifications, and a searchable database of vessel transits, including passage times and waiting periods.
With experienced operations desk teams and dedicated workboat crews, we deliver reliable ship sub-agency and maritime support services to ship agents, ship suppliers, and surveyors.
Scope of Service
- Continuous vessel traffic monitoring throughout the Turkish Straits
- Crew change arrangements
- Spare parts and ship supply deliveries
- CTM (Cash to Master) deliveries
- Inbound and outbound port and customs clearance
- Coordination and support for surveys and inspections
In addition to sub-agency services, Düzgit Group also charters its workboats for:
- Escort services
- Offshore platform catering and logistics support
- Marine construction works
- Pilotage and mooring services
Operational Strength
Our operations are supported by a diversified fleet exceeding 25 workboats, configured to meet a wide range of operational requirements in the Turkish Straits. The fleet includes workboats ranging from 12 to 25 metres in length, with speeds of up to 47 knots, cargo capacities of up to 25 metric tons, deck areas up to 90 m², onboard crane capacities up to 3,750 kg, and passenger capacities of up to 12 persons. This flexibility enables rapid response and uninterrupted service under all operating conditions
GEMTAC Gemi Tali-Acenteliği ve Bot Hizmetleri Ticaret A.Ş.
Serving vessels approaching the Strait of Istanbul from the Southern Entrance.
Address : Sahil Kennedy Caddesi, Zeyport Limanı, 34020 Zeytinburnu, İstanbul
Phone : +90 212 416 72 00 / +90 533 689 36 94
Fax : +90 212 416 76 33
E-mail : operation.zeyport@gemtac.com
Website : www.gemtac.com
Düzgit Vapur Hizmetleri Ticaret A.Ş.
Serving vessels approaching the Strait of Istanbul from the Northern Entrance.
Address : Çayırbaşı Caddesi No: 278, Büyükdere 34453 Sarıyer, İstanbul
Phone : +90 212 242 04 91 – 242 07 86
Fax : +90 212 242 44 23
E-mail : agency.buyukdere@duzgit.com
Denizciler Düzgit Gemi Acenteliği Ticaret Ltd. Şti.
Serving vessels transiting the Strait of Çanakkale.
Address : Rıhtım Caddesi, Mercan Apt. No: 17/1-2, Merkez 17100 Çanakkale
Phone : +90 286 217 10 32
Fax : +90 286 217 42 63
E-mail : denizciler@duzgit.com
Professional Memberships
Düzgit Group is a member of the following professional organizations:
- DTO – Turkish Chamber of Shipping
- TAB – Turkish Shipowners’ Association






