Stef Wertheimer (; 16 July 1926 – 26 March 2025) was an Israeli
billionaire
A billionaire is a person with a net worth of at least 1,000,000,000, one billion units of a given currency, usually of a major currency such as the United States dollar, euro, or pound sterling. It is a sub-category of the concept of the ultr ...
industrialist, investor, philanthropist and politician. He was a member of the
Knesset
The Knesset ( , ) is the Unicameralism, unicameral legislature of Israel.
The Knesset passes all laws, elects the President of Israel, president and Prime Minister of Israel, prime minister, approves the Cabinet of Israel, cabinet, and supe ...
, and was known for founding industrial parks in Israel and neighboring countries. In 2013, the Wertheimers were described as Israel's richest family.
Background
Stef (Ze'ev) Wertheimer was born in
Kippenheim, Germany, to a Jewish family.
His family fled to Mandatory Palestine in 1937 to escape Nazism.
He studied in the Tel-Nordau School in
Tel Aviv
Tel Aviv-Yafo ( or , ; ), sometimes rendered as Tel Aviv-Jaffa, and usually referred to as just Tel Aviv, is the most populous city in the Gush Dan metropolitan area of Israel. Located on the Israeli Mediterranean coastline and with a popula ...
but dropped out of school at age 16 and started working in a camera repair store. At the same time, he began studying
optics
Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of optical instruments, instruments that use or Photodetector, detect it. Optics usually describes t ...
with Professor
Emanuel Goldberg
Emanuel Goldberg (; ; ; 31August 188113September 1970) was an Israeli physicist and inventor. He was born in Moscow and moved first to Germany and later to Israel. He described himself as "a chemist by learning, physicist by calling, and a mecha ...
, a researcher and inventor who contributed significantly to different aspects of imaging technology in the first half of the twentieth century.
In 1943, during
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
, Wertheimer enlisted in the British
Royal Air Force
The Royal Air Force (RAF) is the Air force, air and space force of the United Kingdom, British Overseas Territories and Crown Dependencies. It was formed towards the end of the World War I, First World War on 1 April 1918, on the merger of t ...
, serving as an optical equipment technician. He was sent to
Bahrain
Bahrain, officially the Kingdom of Bahrain, is an island country in West Asia. Situated on the Persian Gulf, it comprises a small archipelago of 50 natural islands and an additional 33 artificial islands, centered on Bahrain Island, which mak ...
where he repaired optical equipment installed in British military aircraft.
In 1945, he joined the
Palmach
The Palmach (Hebrew: , acronym for , ''Plugot Maḥatz'', "Strike Phalanges/Companies") was the elite combined strike forces and sayeret unit of the Haganah, the paramilitary organization of the Yishuv (Jewish community) during the period of th ...
, where he served as a technical officer in the "German Unit" – a special guerilla force trained with British cooperation to participate in combat operations against the German army, should it reach Israel. He was arrested by the British during
Operation Agatha in 1946 and detained for four months. In 1947, he began working in the development and improvement of cannons for the
Haganah
Haganah ( , ) was the main Zionist political violence, Zionist paramilitary organization that operated for the Yishuv in the Mandatory Palestine, British Mandate for Palestine. It was founded in 1920 to defend the Yishuv's presence in the reg ...
. During the
1948 Arab-Israeli War
Events January
* January 1
** The General Agreement on Tariffs and Trade (GATT) is inaugurated.
** The current Constitutions of Constitution of Italy, Italy and of Constitution of New Jersey, New Jersey (both later subject to amendment) ...
, he served as a technical officer in the
Yiftach Brigade
The 11th Brigade (also known as the Yiftach Brigade) is a reserves unit in the Israel Defense Forces, composed mainly of fighters that completed their compulsory service in the Egoz Unit, Unit 621 – 'Egoz'.
History
In the 1948 Arab–Israeli ...
.
After the war, Wertheimer started working at
Rafael, only to be dismissed shortly thereafter because of his lack of formal education. Following the war, he and his wife briefly lived on kibbutz
Yir'on, but left, as he did not agree with the socialist economic model adopted by the kibbutz movement.
Wertheimer was married with four children and lived in Tel Aviv.
[Israeli tycoon urges help for Palestinians](_blank)
BBC News, 17 July 2002. His granddaughter is the Israeli actress
Maya Wertheimer. In 2018, Eitan Wertheimer purchased a house for his father, Stef, for 20 million
ILS.
On 26 March 2025, Wertheimer died at the age of 98.
Business career
In 1952, Wertheimer started his own business in the backyard of his home in
Nahariya
Nahariya () is the northernmost coastal city in Israel. As of , the city had a population of .
The city was founded in 1935 by Jewish refugees fleeing Nazi Germany.
Etymology
Nahariya takes its name from the stream of Ga'aton River, Ga'aton (riv ...
, a small metal shop and tool-making company called
ISCAR. The company quickly became a success and attracted the interest of
Discount Investments, who later became a minority investor in the company. Today, ISCAR is one of the world's largest (by sales) manufacturers of carbide industrial-cutting tools, which are used by carmakers like
General Motors
General Motors Company (GM) is an American Multinational corporation, multinational Automotive industry, automotive manufacturing company headquartered in Detroit, Michigan, United States. The company is most known for owning and manufacturing f ...
and
Ford.
[Stef Wertheimer & Family](_blank)
''Forbes'', dated October 2006. ISCAR branches exist in dozens of countries worldwide and the company employs over 5,000 people.
In 1968, as part of Israeli efforts to overcome the French weapons embargo after the
Six-Day War
The Six-Day War, also known as the June War, 1967 Arab–Israeli War or Third Arab–Israeli War, was fought between Israel and a coalition of Arab world, Arab states, primarily United Arab Republic, Egypt, Syria, and Jordan from 5 to 10June ...
, Wertheimer founded ISCAR Blades, which later became Blades Technology – one of the largest manufacturers of blades and vanes for jet engines and industrial gas turbines. Wertheimer sold his 51% stake in Blades Technology in 2014 to jet engine maker
Pratt & Whitney
Pratt & Whitney is an American aerospace manufacturer with global service operations. It is a subsidiary of RTX Corporation (formerly Raytheon Technologies). Pratt & Whitney's aircraft engines are widely used in both civil aviation (especially ...
for an undisclosed amount.
In May 2006,
Berkshire Hathaway
Berkshire Hathaway Inc. () is an American multinational conglomerate holding company headquartered in Omaha, Nebraska. Originally a textile manufacturer, the company transitioned into a conglomerate starting in 1965 under the management of c ...
bought 80% of ISCAR Metalworking Company for $4 billion (the Wertheimers paid $1 billion in taxes to the Israeli government).
[Jerusalem Pos]
Jerusalem Post, 6 May 2006. In May 2013 Buffett bought the rest of Iscar for $2.05 billion.
At the time of his death, Forbes estimated Wertheimer's net worth at US$7.6 billion.
Industrial parks
Wertheimer founded seven industrial parks – in Tefen,
Tel Hai,
Dalton,
Lavon and now
Nazareth
Nazareth is the largest Cities in Israel, city in the Northern District (Israel), Northern District of Israel. In its population was . Known as "the Arab capital of Israel", Nazareth serves as a cultural, political, religious, economic and ...
in the Galilee; in Omer in the Negev; and another in
Gebze
Gebze (), formerly known as Libyssa, is a municipality and district of Kocaeli Province, Turkey. Its area is 418 km2, and its population is 407,019 (2022). It is situated 65 km (30 mi) southeast of Istanbul, on the Gulf of Izmit, ...
,
Kocaeli, Turkey. Each is based on five principles: exports, education, coexistence, community and culture, with the goal of fostering economic growth and job creation to help create stability in the region. As Wertheimer has explained, "The idea of industrial parks in the Middle East and on the borders between Israel and its neighbors is that the parks will bring industry and provide jobs, which will keep people busy working, instead of engaging in terrorism."
[Stef Wertheimer's New Middle East](_blank)
Israel21c, 11 January 2004
Wertheimer's model park is the Tefen Industrial Park. Built in 1982, it encompasses everything from transportation to cultural and educational facilities. Wertheimer's industrial park in the mixed Muslim-Christian Arab city of Nazareth, where Jews and Arabs work side by side, opened in April 2013. Wertheimer and Nazareth Mayor Ramez Jeraisy explained that the industrial park is part of a unique model to promote the advancement of Arab-Jewish Israeli export companies. During his visit to Israel in 2009, Pope Benedict had met with both men at the site of the future park and gave his blessing to the project. Wertheimer has said, "Coexistence in the industrial park in Arab Nazareth is a good example of coexistence. When people work together, they have no time for nonsense. They're too tired at night to commit terrorist acts. They're satisfied, they engage in producing. They work together, not against each other."
Peace efforts
Wertheimer promoted the idea of a "Marshall Plan for the Middle East" – his concept for using industry to provide training, create jobs, alleviate poverty and raise the per capita income of those living in the Middle East.
In the 1990s, he drew up plans for an industrial park in
Rafah
Rafah ( ) is a city in the southern Gaza Strip, Palestine, and the capital of the Rafah Governorate. It is located south-west of Gaza City. In 2017, Rafah had a population of 171,889. Due to the Gaza war, about 1.4 million people from Gaza C ...
, in the
Gaza Strip
The Gaza Strip, also known simply as Gaza, is a small territory located on the eastern coast of the Mediterranean Sea; it is the smaller of the two Palestinian territories, the other being the West Bank, that make up the State of Palestine. I ...
. The Palestinian and the Israeli governments both offered support, but one week before the groundbreaking ceremony, the
Second Intifada
The Second Intifada (; ), also known as the Al-Aqsa Intifada, was a major uprising by Palestinians against Israel and its Israeli-occupied territories, occupation from 2000. Starting as a civilian uprising in Jerusalem and October 2000 prot ...
broke out and that plan was indefinitely shelved.
[Giving Galilee a Foothold in Industry](_blank)
New York Times, 18 May 2006.
In 2002, he testified before the
United States House of Representatives
The United States House of Representatives is a chamber of the Bicameralism, bicameral United States Congress; it is the lower house, with the U.S. Senate being the upper house. Together, the House and Senate have the authority under Artic ...
about a "new Marshall Plan" that advocates U.S. funding to revitalize the Middle East through a sustained effort to promote commerce, jobs, and a free economy in the region.
[Marshall Plan for Middle East](_blank)
News Advisory, U.S. House of Representatives, Committee on International Relations, 22 July 2002.
Wertheimer's vision included building an additional 100 industrial parks that will employ Israelis and Palestinians. Wertheimer wasn't confining his idea to Israel though, and had plans underway in Turkey and Jordan.
He elaborated, "My Marshall Plan is based on aid from Western countries for strengthening the Middle East, in order to achieve peace and tranquillity. The parks will serve as a five-year incubator for manufacturing and export companies. If aid is obtained, the parks can usher in an era in which production, exports, education, and an advanced quality of life can replace terrorism and poverty."
Political career
In 1977, Wertheimer was amongst the founding members of the
Democratic Movement for Change, a new centrist political party. The party was highly successful, winning 15 seats in the
1977 elections, with Wertheimer taking one of the seats. When the party split up in 1978, he joined
Shinui
Shinui () was a Zionist, secular, and anti-clerical free market Liberalism worldwide, liberal party and political movement in Israel. The party twice became the third-largest in the Knesset, but both occasions were followed by a split and collaps ...
. In 1981, following an accident,
he resigned from the Knesset (was replaced by
Stella Levy) and returned to his business ventures. During his term in the Knesset, he was a member of the Economics Committee. He remained active in bridging gaps between the Jewish and Arab populations of Israel, particularly by boosting Arab participation in the country's high-tech sector.
Prior to the 2013 elections, he took the honorary final slot on
Tzipi Livni
Tziporah Malka "Tzipi" Livni (, ; born 8 July 1958) is an Israeli politician, diplomat and lawyer.
A former member of the Knesset and leader in the center-left political camp, Livni is a former Ministry of Foreign Affairs (Israel), foreign mini ...
's new list,
Hatnuah
Hatnua () was a liberal political party in Israel formed by former Israeli Foreign Minister and Vice Prime Minister Tzipi Livni to present an alternative to voters frustrated by the stalemate in the Israeli–Palestinian peace process.
The pa ...
.
He endorsed her alliance with Labor, the
Zionist Union
The Zionist Union (, translit. ''HaMaḥaneh HaẒiyoni'', lit. ''the Zionist Camp'') was a centre-left political alliance in Israel. It was established in December 2014 by the Israeli Labor Party and Hatnuah to create a joint electoral list ...
, in 2015.
Awards and recognition
In 1991, Wertheimer was awarded the
Israel Prize
The Israel Prize (; ''pras israél'') is an award bestowed by the State of Israel, and regarded as the state's highest cultural honor.
History
Prior to the Israel Prize, the most significant award in the arts was the Dizengoff Prize and in Israel ...
for his special contribution to society and the State of Israel.
[ ] In 2008, he received the
Buber-Rosenzweig-Medal The Buber-Rosenzweig-Medaille is an annual prize awarded since 1968 by the Deutscher Koordinierungsrat der Gesellschaften für Christlich-Jüdische Zusammenarbeit
(DKR; German Coordinating Council of Societies for Christian-Jewish Cooperation) to in ...
. He received the Oslo
Business for Peace Award in 2010, which is given to leaders in the private sector who have demonstrated transformative and positive change through ethical business practices. In 2014, he received the
President's Medal.
[ ]
See also
*
List of Israel Prize recipients
This is an incomplete list of recipients of the Israel Prize from the inception of the Prize in 1953 - 2025.
List
For each year, the recipients are, in most instances, listed in the order in which they appear on the official Israel Prize website ...
*
List of Israelis by net worth
References
External links
*
Stef Wertheimer's Industrial Parks
{{DEFAULTSORT:Wertheimer, Stef
1926 births
2025 deaths
People from Ortenaukreis
People from the Republic of Baden
Jewish emigrants from Nazi Germany to Mandatory Palestine
Jewish Israeli politicians
Democratic Movement for Change politicians
Shinui politicians
Members of the 9th Knesset (1977–1981)
Israeli billionaires
Israeli chief executives
Israeli investors
Israeli philanthropists
Palmach members
Israel Prize for special contribution to society and the State recipients
Recipients of the Presidential Medal of Distinction of Israel
Commanders Crosses of the Order of Merit of the Federal Republic of Germany
Recipients of the Order of Merit of Baden-Württemberg
German Zionists
Royal Air Force personnel of World War II
Royal Air Force airmen
Israeli military personnel of the 1948 Arab–Israeli War
Mandatory Palestine military personnel of World War II
20th-century Israeli businesspeople
20th-century philanthropists
21st-century philanthropists