Strong Investment Sustainable Future
Our company combines investment, management, and engineering expertise to shape the future through national and international project.
Founded in 2015, YAY Investment Holding is a strong investment and management organization providing strategic solutions in defense industry, construction, and global business development.
Serdar CIN
Founder
15+
Years of Experience in Investment & SmartValue-DrivenGrowth-FocusedStrategic Management
Strategic Investments
Driving sustainable growth by investing in high-potential sectors across domestic and international markets.
Defense & Engineering Expertise
Delivering advanced solutions through deep experience in defense industry projects and large-scale engineering operations.
Global Partnerships
Building strong international collaborations to expand market presence and create long-term value.
About YAY Investment Holding Inc.
YAY Investment Holding Inc. was established on September 15, 2015, in Kadıköy, Istanbul by Serdar Cin. The company aims to participate in the capital and management of companies operating both domestically and internationally, consolidating investment, financing, organization, and management functions under a unified structure based on modern business principles.
The holding focuses on distributing risks, increasing resilience against economic fluctuations, ensuring sustainable growth, and securing long-term continuity.
Driving Value Through
Strategic Investment & Smart Design
Fields of Activity
We operate across key sectors with a focus on strategic investment, engineering excellence, and sustainable growth, creating long-term value in both domestic and international markets.
Investment & Finance
Defense Industry
Construction & Infrastructure
International Business Development
Management & Consultancy
References
YAY Investment Holding actively participates in high-value projects across defense, construction, and international sectors.
Submarine and warship projects
Submarine and warship projects (including €2.2 billion scale projects)
TÜBİTAK SAGE consultancy services
TÜBİTAK SAGE consultancy services
NATO-related Projects
NATO-related projects
International defense collaborations
International defense collaborations (Pakistan, Azerbaijan, USA, Saudi Arabia, etc.)
High-Speed Train Project
Ankara–Izmir High-Speed Train Project (viaduct and road construction)
Due to confidentiality agreements, detailed project information is limited.
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