Building Legacies, Raising Standards
Crownstone Holdings Ltd | Construction • Agribusiness • Media • Youth Empowerment
Welcome to Crownstone Holdings Ltd
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About Crownstone Holdings Ltd
Crownstone Holdings Ltd is a visionary Tanzanian conglomerate founded by Dr. Martin John, dedicated to building legacy-driven ventures that uplift communities and raise standards across industries.
With strong foundations in construction, agribusiness, and media, Crownstone oversees:
🏗️ Shunda Construction Co. Ltd — modern, durable, people-centered projects
🐔 Ajuang Chicken Mart — fresh, locally raised poultry with pride
🎙️ Uplift Tz Media — bold voices and real conversations through podcasting and digital platforms
At Crownstone, we don’t just build — we empower, we lead, and we grow with purpose.
Our Companies
Crownstone Holdings Ltd manages three purpose-driven companies that serve the nation with excellence and integrity.
🐔 Ajuang Chicken Mart
Providing fresh, locally raised poultry with pride and high standards.
🏗️ Shunda Construction Co. Ltd
Building modern, durable, people-centered structures that improve communities.
🎙️ Uplift Tz Media
Delivering bold voices and real conversations through podcasts and digital media.
🌱 Youth Uplift Foundation
A non-profit initiative dedicated to empowering youth through education, leadership, and community development programs—helping young people rise, build confidence, and create a stronger future.
Our Vision & Mission
🌍 Vision:
To build a legacy-driven empire that uplifts communities, raises national standards, and inspires future generations across Africa.
🚀 Mission:
To lead with integrity, innovate across industries, empower young people, and create sustainable solutions that transform lives.
💎 Our Core Values:
- Excellence
- Integrity
- Impact
- Innovation
- Community
- Growth
Contact Us
📞 WhatsApp: 0623 263 941
📧 Email: shundamartin3@gmail.com
📸 Instagram: @shunda_martin
🐦 X (Twitter): @shunda_martin
🎵 TikTok: @shunda_martin
For business inquiries, partnerships, or media requests — reach out today. We respond within 24 hours.
Crownstone Holdings Ltd
Building legacies, raising standards