Defne, is a leading global provider of telecom solutions, software products and services for communications networks. Defne offers a differentiated portfolio of innovative call completion and management, messaging and notification, roaming, and digital services solutions. Today, more than 25 service providers across 20 countries serving over 500 million subscribers are driving revenue growth and increasing customer loyalty with Defne’s solutions and services. Expertise on 5G, IN, IVR, and messaging combined with a wealth of skilled resources, allows Defne to provide reliable and scalable solutions that seamlessly integrate with existing customer infrastructure. Defne ranked in the Deloitte Technology Fast 500 EMEA and the Deloitte Technology Fast 50 Turkey programs in multiple years. Headquartered in Istanbul, Turkey, established in 1996, Defne is an Associate Member of the GSMA. For more information about Defne and its solutions, please visit www.defne.com.tr.
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Defne Questions
The Defne annual revenue was $5.1 million in 2026.
Ercan Fincan is the CTO, Chief Technology Officer of Defne.
43 people are employed at Defne.
Defne is based in Istanbul, Istanbul.
The NAICS codes for Defne are [5179, 51, 51791, 517911, 517].
The SIC codes for Defne are [481, 48].
Top Defne Employees
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Oguz Haliloglu
Chief Executive Officer and Co-Founder at Defne
Istanbul, Turkey22 -
Ertürk Varol
Chief Operations Officer at Defne
Umraniye, TR1 -
25
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Burak Yalçınkaya
Director of Operation and Support at Defne
Istanbul, Turkey2 -
Mert C.
Technology Project Manager at Defne
Abbots Langley, GB1 -
Firat Saglik
Vice President of Business Development at Defne
Istanbul, Turkey2 -
Banu Ergen
Senior UI and UX Designer at Defne
Istanbul, TR3 -
Sidar Şahin
Full-stack Developer at Defne
Istanbul, Turkey1 -
Emre Unal
Business Development Manager at Defne
Istanbul, Turkey
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