Leading Transformation Worldwide
We Are Ratio Group
Ratio Group is a global pioneer in strategic investments, combining entrepreneurial vision with financial strength. Through persistent innovation and groundbreaking initiatives across continents, we transform promising opportunities into market-leading ventures that shape tomorrow's landscape.
Rooted in Legacy.
Built for the Future.
With longstanding roots in Israel’s business and innovation landscape, Ratio Group is a dynamic investment and development group active across the energy, technology, industrial and real-estate sectors.
Our legacy of entrepreneurial leadership and forward-thinking strategy guides us as we identify, invest in, and advance ventures that shape business ecosystems and improve lives.
Ratio Group brings together proven experience, strong partnerships, and a bold outlook on future growth.
Our global reach extends to both advanced economies and developing regions, where we drive inclusive growth through responsible investment and infrastructure-led innovation.
Driven by impact and built for scale, we operate across global markets with a focus on long-term value, sustainability, and pioneering progress.
Powering Energy Worldwide
Our operations span prominent and emerging energy markets, including the Eastern Mediterranean, South America, Africa and Southeast Asia.
By leveraging global reach, we aim to influence and bring prosperity to countries and communities through sustainable and strategic energy solutions t on a worldwide scale.
Rooted in Legacy.
Built for the Future.
With longstanding roots in Israel’s business and innovation landscape, Ratio Group is a dynamic investment and development group active across the energy, technology, industrial and real-estate sectors.
Our legacy of entrepreneurial leadership and forward-thinking strategy guides us as we identify, invest in, and advance ventures that shape business ecosystems and improve lives.
Ratio Group brings together proven experience, strong partnerships, and a bold outlook on future growth.
Our global reach extends to both advanced economies and developing regions, where we drive inclusive growth through responsible investment and infrastructure-led innovation.
Driven by impact and built for scale, we operate across global markets with a focus on long-term value, sustainability and pioneering progress.
The Leadership Team
Management
Ligad Rotlevy
Owner & Executive Member
Yigal Landau
Owner & Executive Member
Itay Raphael
Group CEO
Iris Baumer
Head of Finance
Executive Members
Yair Rotlevy
Zorik Rotlevy
Yuval Landau
The Founders’ Story:
A Legacy of Visionary Impact
Having been active in the Israeli business sector since the early days of the state, the Landau and Rotlevy families brought decades of entrepreneurial experience and leadership into the founding of Ratio Group over thirty years ago.
Their combined financial strength, pioneering mindset, and unwavering drive laid the foundation for Ratio Group’s success - positioning it as a leader in transformative ventures and sustainable growth.
Today, their legacy of innovation and long-term vision continues to guide Ratio as it shapes meaningful opportunities across global markets.
Yeshayahu (Shaike) Landau
Giv'at Ehud
Yeshayahu Landau - Giv'at Ehud
Shaike - 1947
David
Rotlevy
David Rotlevy
Rotlevy Family
Rotlevy Family
Rotex Company (Textile)
Rotlevy Family
Landau Family
Landau Family
Rotlevy Family – Rotex
Rotlevy Family Rotex
Rotlevy Family – Rotex
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The Founders’ Story:
A Legacy of Visionary Impact
Over three decades ago, the Landau family and the Rotlevy family founded Ratio Group with a pioneering vision to transform industries through entrepreneurial innovation.
Together, the founders’ financial strength and persistent drive laid the foundation for Ratio Group’s success, positioning the company as a leader in transformative ventures and sustainable growth. Today, their legacy of entrepreneurial spirit, innovation and pioneering leadership continues to guide Ratio as it shapes opportunities across global markets.
Rooted in Purpose
The partnership between Landau and Rotlevy was grounded in values and vision.
Their journey was rooted in practical Zionism, initiative, and a belief in steady, long-term progress. In 1992, they formed a natural alliance—acquiring control of Bank Igud (Union Bank) and founding Ratio Oil Exploration Partnership. This laid the groundwork for a bold energy venture that helped reshape Israel’s economic future. Since then, they’ve built impactful initiatives grounded in experience, vision, and a lasting commitment to the country’s future.
Yeshayahu (Shaike) Landau
Born in Ukraine and immigrated to Israel alone at the age of 19 aboard the “Hagana” immigrant ship. After being detained in the Atlit internment camp, he began his life in Israel working in metalwork and small-scale contracting.
By the 1950s, he was already involved in major infrastructure projects, including the establishment of new towns in the south such as Arad and Dimona, and participated in laying the National Water Carrier. Over time, he led complex projects in Israel and abroad, and in the 1980s, along with his partners, he founded a civil engineering company operating in Kenya and Uganda, which became one of the largest on the continent.
He later co-founded Granit HaCarmel Group, under which leading companies operated across Israel’s energy, industrial, and service sectors.
David Rotlevy
Born into a family that had laid down roots in Israel as early as 1924, establishing a small textile workshop in southern Tel Aviv.
Within a few decades—and through a combination of diligence, boldness, and sound business thinking—the family’s initiative grew into a leading enterprise, becoming a cornerstone of the local textile industry, developing manufacturing infrastructure, expanding into international markets, and providing livelihoods for thousands of families.
After the passing of his father, David took over the business at a young age and led it forward through mergers, acquisitions, and strategic expansion, transforming the family venture into a stable and dynamic industrial group.He later broadened the family’s activities beyond textiles—venturing into new areas of entrepreneurship and assets.
Yeshayahu Landau was born in Ukraine and immigrated to Israel alone at the age of 19 aboard the “Hagana” immigrant ship. After being detained in the Atlit internment camp, he began his life in Israel working in metalwork and small-scale contracting.
By the 1950s, he was already involved in major infrastructure projects, including the establishment of new towns in the south such as Arad and Dimona, and participated in laying the National Water Carrier.
Over time, he led complex projects in Israel and abroad, and in the 1980s, along with his partners, he founded a civil engineering company operating in Kenya and Uganda, which became one of the largest on the continent.
He later co-founded Granit HaCarmel Group, under which leading companies operated across Israel’s energy, industrial, and service sectors.
Yeshayahu (Shaike) Landau
David Rotlevy was born into a family that had laid down roots in Israel as early as 1924, establishing a small textile workshop in southern Tel Aviv.
Within a few decades—and through a combination of diligence, boldness, and sound business thinking—the family’s initiative grew into a leading enterprise, becoming a cornerstone of the local textile industry, developing manufacturing infrastructure, expanding into international markets, and providing livelihoods for thousands of families.
After the passing of his father, David took over the business at a young age and led it forward through mergers, acquisitions, and strategic expansion, transforming the family venture into a stable and dynamic industrial group.
He later broadened the family’s activities beyond textiles—venturing into new areas of entrepreneurship and assets.
David Rotlevy
Rooted in Purpose
The partnership between Landau and Rotlevy was grounded in values and vision.
Their journey was rooted in practical Zionism, initiative, and a belief in steady, long-term progress. In 1992, they formed a natural alliance - acquiring control of Bank Igud (Union Bank) and founding Ratio Energies. This laid the groundwork for a bold energy venture that helped reshape Israel’s economic future. Since then, they have built impactful initiatives grounded in experience, vision, and a lasting commitment to the country and region's future.
Yeshayahu (Shaike) Landau
Born in Ukraine and immigrated to Israel alone at the age of 19 aboard the “Hagana” immigrant ship. After being detained in the Atlit internment camp, he began his life in Israel working in metalwork and small-scale contracting. By the 1950s, he was already involved in major infrastructure projects, including the establishment of new towns in the south such as Arad and Dimona, and participated in laying the National Water Carrier. Over time, he led complex projects in Israel and abroad, and in the 1980s, along with his partners, he founded a civil engineering company operating in Kenya and Uganda, which became one of the largest on the continent. He later co-founded Granit HaCarmel Group, under which leading companies operated across Israel’s energy, industrial, and service sectors.
David Rotlevy
Born into a family that had laid down roots in Israel as early as 1924, establishing a small textile workshop in southern Tel Aviv. Within a few decades - and through a combination of diligence, boldness, and sound business thinking - the family’s initiative grew into a leading enterprise, becoming a cornerstone of the local textile industry, developing manufacturing infrastructure, expanding into international markets, and providing livelihoods for thousands of families. After the passing of his father, David took over the business at a young age and led it forward through mergers, acquisitions, and strategic expansion, transforming the family venture into a stable and dynamic industrial group.He later broadened the family’s activities beyond textiles - venturing into new areas of entrepreneurship and assets.
David Rotlevy
Born into a family that had laid down roots in Israel as early as 1924, establishing a small textile workshop in southern Tel Aviv. Within a few decades - and through a combination of diligence, boldness, and sound business thinking - the family’s initiative grew into a leading enterprise, becoming a cornerstone of the local textile industry, developing manufacturing infrastructure, expanding into international markets, and providing livelihoods for thousands of families. After the passing of his father, David took over the business at a young age and led it forward through mergers, acquisitions, and strategic expansion, transforming the family venture into a stable and dynamic industrial group.He later broadened the family’s activities beyond textiles - venturing into new areas of entrepreneurship and assets.
Yeshayahu (Shaike) Landau
Born in Ukraine and immigrated to Israel alone at the age of 19 aboard the “Hagana” immigrant ship. After being detained in the Atlit internment camp, he began his life in Israel working in metalwork and small-scale contracting. By the 1950s, he was already involved in major infrastructure projects, including the establishment of new towns in the south such as Arad and Dimona, and participated in laying the National Water Carrier. Over time, he led complex projects in Israel and abroad, and in the 1980s, along with his partners, he founded a civil engineering company operating in Kenya and Uganda, which became one of the largest on the continent. He later co-founded Granit HaCarmel Group, under which leading companies operated across Israel’s energy, industrial, and service sectors.