INNOVATIVE MATERIALS.
TAILORED SOLUTIONS.
ABOUT US
SteinGeo is an international construction materials company, established in 2025 with headquarters in Istanbul and Berlin, dedicated to delivering high-quality solutions across critical sectors of the construction industry.
With over 20 years of experience in foreign trade and geosynthetics,
we connect certified products manufactured to European standards with projects across the Balkans, the Middle East, Turkey, and EU countries. Our diverse product portfolio includes construction materials, geogrid,
geosynthetic systems, asphalt additives, waterproofing and thermal insulation products, nonwoven & woven geotextile, greenroof systems, and natural stone and marble products. Our mission is to bridge manufacturers and exporters with project developers through a foundation built on quality, sustainability,
and trust.
Trust, innovation, sustainability, and quality are the core values that drive every aspect of our operations. Thanks to our extensive industry knowledge, strong international trade background, and reliable supply network, we provide not just products but also solution-oriented services tailored to our partners' needs.
Through our offices in Istanbul and Berlin, we maintain close proximity to local markets while operating with a global perspective. We are fully equipped to provide all the technical support and product quality
required by project owners, contractors, and importers.
We are committed to delivering reliable, sustainable, and durable
solutions for the projects of today and tomorrow.
20
2
26
28
Year of Experience
Headquarters
Istanbul & Berlin
SteinGeo
Product Range
Export to
Countries
NATURAL STONES
SteinGeo & Alsancak Marble Partnership Brings Natural Elegance to Your Spaces
As SteinGeo, within the framework of our long-standing partnership, we leverage Alsancak Marble’s industry experience and high production quality to provide our customers with premium services in a wide range of natural stone and marble products.
Alsancak Marble, founded by a young and dynamic team who believe that natural stone should be an essential part of living spaces, has quickly become one of the leading companies in the sector with its extensive product range.
We produce split marble, mosaics, medallions, artistic mosaics, and other decorative products in various sizes and patterns, offering fast and flexible solutions to meet the demands of our international clients. Additionally, we customize existing products according to special needs and expectations.
It is possible to bring nature’s elegant touch to your living spaces where aesthetics, health, and tranquility coexist. With Alsancak Marble’s quality-focused approach and expert team, we deliver the unique texture of natural stone into your life.
To explore our product collection and get in touch, please visit
CONTACT
Berlin Head Office
Schlesinger StraBe 6
Charlottenburg 10587,
Berlin Deutschland
Contact Us
E-mail: info@steingeo.com
Tel: +49 173 852 0540