The RAD Group was founded by brothers Yehuda (1942–2024) and
Zohar (1949–2023) Zisapel, in
Tel Aviv,
Israel. Both brothers studied
electrical engineering at the
Technion – Israel Institute of Technology. Yehuda started his career in the 1960s working for
Motorola Israel but in 1973 decided to start his own business importing and distributing
computer networking equipment, a company called Bitcom. Later Yehuda parted company with his initial business partner and started a new company, Bynet. The company's main business was distributing
Codex Corporation products, and the company soon became a market leader in Israel. In 1977
Codex Corporation was acquired by
Motorola, but due to its success
Bynet maintain the distribution rights for its products; however in 1981
Motorola decided not to renew the distribution agreement with Bynet, and Codex Corporation began to sell in Israel directly. The experience of losing the distribution rights of Codex made Yehuda realize that his business should never rely on one product line, and in 1981 he asked his brother, Zohar, to join him at Bynet to start working on the development of their products. They started a new company in a corner of the Bynet offices and gave it the name
RAD Data Communications, RAD being the
acronym of Research And Development. By the end of 1995, the merged Madge-LANNET had 1,400 employees and achieved revenues of more than $400 million, but throughout 1996-1997 there were disagreements about strategy. Benny Hanigal left the company and joined the Israeli
Venture Capital fund Star Ventures. In late 1997
Madge Networks spun off its
Ethernet division into a separate subsidiary, once again named LANNET, and then sold it to
Lucent Technologies for $117 million in July 1998. During the 1990s the RAD Group was involved in establishing 12 different technology companies. Some became publicly listed companies on
NASDAQ and some were later sold to other companies. The group typically has a similar approach for starting new ventures: a business idea of an entrepreneur (an existing company employee or an outsider) or from the company's management team forms the basis of a
start-up. Initial funding is provided by the company together with other venture capital funds. In this way companies such as:
RADCOM was established in 1990 and received funding from Star Venture and
Pitango Venture Capital funds{{Citation ==Importance==