Yeshayahu (Shaikeh) Landau
Yeshayahu (Shaikeh) Landau was one of the founders of the "Ratio Group". He was born in the Ukraine in 1927. As a youth, during World War II, he and his family migrated to Uzbekistan. In 1946, Yeshayahu immigrated on his own to Israel on the HaHaganah immigrant ship but was caught by the British and imprisoned at the detention camp in Atlit.
Yeshayahu Landau joined the Palmach, fought during the Israeli War of Independence and was one of the first members of the Golani Brigade. He completed his military service at the rank of major.
In the 1950s, Yeshayahu founded Hiram Landau Ltd., a company that specializes in construction and infrastructure development projects. He Was partner in large-scale infrastructure works throughout the southern region of Israel, and in the construction of the “Kiryat Malachi” and “Kiryat Gat” Municipalities.
After the Six-Day War, Yeshayahu served as an infrastructure contractor, winning Ministry of Defense tenders for the construction of airports and IDF bases in the Sinai Peninsula. He worked in Africa, as part of the “Hiram-Zeevi” Group that built water desalination plants, rivers diversion, road paving and construction of airports in Kenya. The group also built the airport in Entebbe, Uganda. Later, he sent the IDF the exact construction diagrams and blueprints during Operation Thunderbolt in Entebbe, helping the success of the rescue operation.
In 1981, Landau, along with other partners, founded the holdings company “Granite HaCarmel”, which operated a group of companies such as "Sonol" oil distribution company, "SuperGas", "Tambur", paints manufacturing, "Via-Maris" water desalination, and other industrial companies. As part of the “Hiram Landau “ Company, he participated in the development and construction of Israel’s largest private power plant: Dalia Power Energies.
In the mid 80's, Yeshayahu Landau financed the transaction which enabled the construction of “Ormat Turbines” company. Constructed power plants in Southern California and became partner in the company that purchased the plant.
In 1992, he acquired controlling interest in Union Bank Of Israel, the sixth largest bank in Israel with over $ 10 billion in assets, along with the Rotlevy family and other partners. In the same year, the Landau and Rotlevy Families jointly established the Ratio Oil Exploration (1992) Limited Partnership and in 1993, the Partnership was listed on the Tel Aviv stock exchange. The Partnership became one of the largest oil and gas exploration corporations in Israel. In 2013, the Landau and Rotlevy Families, along with geologist Eitan Eisenberg, founded Ratio Petroleum Energy Limited Partnership, as part of the Ratio Group.
Yeshayahu Landau passed away on 25 November 2018.