Who owns İDO?
İDO is owned by İDO İstanbul Deniz Otobüsleri Sanayi ve Ticaret A.Ş. (Turkey).[1]
This ownership is reported in official statements but has not yet been matched to a regulatory filing.
Evidence: Denizyolu Taşımacılığı (Sea transport), Akfen Holding. Last checked .
Key facts
- Current owner
- İDO İstanbul Deniz Otobüsleri Sanayi ve Ticaret A.Ş. reported
- Owner HQ
- 🇹🇷 Turkey, Istanbul
- Origin
- 🇹🇷 Turkey
- Founded
- 1987
- Category
- Travel & transport › Ferries
- Last verified
- · 1 sources
About İDO
İDO operates passenger and vehicle sea transport in Istanbul and the Marmara Sea, with sea buses, car ferries and fast ferries. Akfen Holding says it carries about 30 million passengers and 10 million vehicles a year and has added routes to Cyprus, Hatay and Aegean destinations since 2022.
Ownership timeline of İDO
Where İDO sits in İDO
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
Open the full İDO ownership tree →
Other brands in ferries, and who owns them
The 33 brands in ferries on Brandtree belong to 31 owners. The largest is Attica Group, with 3.
| Brand | Owner | Owner based in |
|---|---|---|
| Blue Star Ferries | Attica Group | 🇬🇷 Greece |
| 2GO Travel | 2GO | 🇵🇭 Philippines |
| BC Ferries | BC Ferries | 🇨🇦 Canada |
| Brittany Ferries | Brittany Ferries | 🇫🇷 France |
| Chu Kong Passenger Transport | Chu Kong Shipping | 🇭🇰 Hong Kong |
| La Méridionale | CMA CGM | 🇫🇷 France |
| Color Line | Color Line | 🇳🇴 Norway |
| CTN | CTN | 🇹🇳 Tunisia |
About the owner: İDO
İDO is a privately held company headquartered in Istanbul, Turkey. Brandtree records 1 brand under its control.
İDO was founded in 1987 by the Istanbul Metropolitan Municipality. Akfen Holding's sea transport page says 100 percent of its shares were privatised on 16 June 2011 to the TASS (Tepe-Akfen-Souter-Sera) joint venture, and that its shareholders are now Akfen Holding (50 percent) and Tepe (50 percent), so no single company controls it. It describes a fleet of 45 vessels and 35 terminals.
🇹🇷 İDO and other Turkish brands
Brandtree records a controlling owner for 89 brands that began in Turkey. 11 of them (12%) are now controlled by a company headquartered in another country; İDO is not one of them.
- AJet — Turkish Airlines 🇹🇷
- Aras Kargo — Austrian Post 🇦🇹
- Celebi Aviation — Celebi Aviation 🇹🇷
- Pegasus Airlines — Pegasus Airlines 🇹🇷
- TAV Airports — TAV Airports 🇹🇷
- Actisoft — BİM 🇹🇷
Frequently asked questions
Who is the parent company of İDO?
The parent company of İDO is İDO İstanbul Deniz Otobüsleri Sanayi ve Ticaret A.Ş., a privately held company headquartered in Turkey.
Is İDO Turkish?
Yes. İDO originated in Turkey in 1987 and its owner, İDO İstanbul Deniz Otobüsleri Sanayi ve Ticaret A.Ş., is also headquartered in Turkey.
Is İDO still owned by İDO İstanbul Deniz Otobüsleri Sanayi ve Ticaret A.Ş.?
Yes. As of 5 October 2026, İDO is still owned by İDO İstanbul Deniz Otobüsleri Sanayi ve Ticaret A.Ş. The ownership record was last checked against primary sources on that date.
Sources (1) & corrections
Last verified . Every ownership fact above is backed by one of these primary documents. Numbers in brackets in the text refer to this list.
- [1] Denizyolu Taşımacılığı (Sea transport), Akfen Holding — Akfen Holding, Official document; retrieved 5 October 2026.
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