KUD on Swiss Stock Exchange

Kudelski Group

Logo: Unknown author Unknown author, Public domain, via Wikimedia Commons4

Swiss company

Kudelski SA is a Swiss company that sells digital television access and management systems, content protection solutions, cybersecurity solutions, Internet of Things products and public access infrastructure. The company is headquartered in Cheseaux-sur-Lausanne and Phoenix, Arizona. Kudelski's first successful product was the Nagra tape recorder, developed by founder and Polish-born researcher Stefan Kudelski.2 Its chief executive is André Kudelski (since 1991).1 Wikipedia text CC BY-SA 4.0

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Last updated Oct 21, 2026.

Overview

1951Founded1

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  • TickerKUD on Swiss Stock Exchange1
  • Industrydigital television1
  • HeadquartersCheseaux-sur-Lausanne1
  • Websitewww.nagra.com
  • Legal formAktiengesellschaft1
  • LEI549300FKTMFFJ0FCTP583
  • StatusActive3
  • LEI statusIssued and current3
  • Registered addressRoute de Genève 22-24, 1033 Cheseaux-Lausanne, Switzerland3
  • Registered withFederal Statistical Office, CHE1001255183
Kudelski Group
Photo: Marcoramax, CC BY-SA 4.0, via Wikimedia Commons7

Kudelski SA is a Swiss company that sells digital television access and management systems, content protection solutions, cybersecurity solutions, Internet of Things products and public access infrastructure. The company is headquartered in Cheseaux-sur-Lausanne and Phoenix, Arizona. Kudelski's first successful product was the Nagra tape recorder, developed by founder and Polish-born researcher Stefan Kudelski.2

Corporate structure

Kudelski Group sits at the top of its group. 7 entities, 5 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Kudelski Group Cheseaux-Lausanne, Switzerland
    • Nagra France Issy Les Moulineaux, France
    • Nagravision Cheseaux-Lausanne, Switzerland
    • SKIDATA Grödig, Austria
      • SKIDATA Subsidiary · Zaventem, Belgium
    • Kudelski (United States) Subsidiary · United States
    • OpenTV Subsidiary

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

What it owns

What Kudelski Group reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Stakes and holdings (Wikidata)

Things Wikidata records the company as owning, with the share when stated.1

The story

Founded by Stefan Kudelski in 1951.1

Kudelski Group was founded in 1951 by Stefan Kudelski, while he was an engineering student at the Swiss Federal Institute of Technology (École polytechnique fédérale de Lausanne - EPFL). The company's first product was the Nagra I, a reel-to-reel tape recorder, which weighed 11 pounds and measured 5"x7"x12" (roughly the size of a shoe box). It was succeeded by the Nagra II in 1953, which improved sound quality with additional mechanical filters.

Kudelski released the Nagra III tape recorder in 1958, which could synchronize sound with the frames on a reel of film, which became popular for on-location filming. It was used by directors including François Truffaut, Jean-Luc Godard, and D. A. Pennebaker. The Nagra SN, or Série Noir, was released in 1970, which was originally designed for use by the United States Secret Service. Kudelski later expanded into television services, providing its access control system for pay television to Canal+ in 1989.

André Kudelski replaced his father, Stefan Kudelski, as chief executive officer in 1991 following pressure from investors.

In 2001, Kudelski Group entered the Public Access sector with the acquisition of SKIDATA, an Austrian company specialised in access systems for people and vehicles.

OpenTV, an internet and digital television company was fully acquired by the Kudelski Group on March 29, 2010.

Kudelski Group entered the cybersecurity sector with the creation in 2012 of Kudelski Security. In order to identify and remediate cyber-attacks, Kudelski Security operates Cyber Fusion Centers in Switzerland, Spain and the United States.

In 2016, the company opened a second headquarters in Phoenix, Arizona. The same year, it launched Insight, the Group's artificial intelligence and big data business performance platform.

Kudelski IoT was created in 2017, together with the launch of the Group's Internet of Things Security Center of Excellence to address demand for increased protection of connected devices.

From Wikipedia’s article on Kudelski Group, shared under CC BY-SA 4.0.5

Leadership

Who has led Kudelski Group, and when. Pick a name to see everywhere that person has worked.

197019801990200020102020

Products and brands

Subsidiaries

Nagravision is a developer of conditional access systems for cable and satellite television, and a number of other companies involved in the audio, Internet security, digital television, public access and smart card industries.

OpenTV is a software company for interactive and digital television. Its primary business is the sale of set-top-box operating systems and software as well as digital advertising products.

SmarDTV is designing Set-Top boxes and CAM Modules.

Kudelski Security is an international cybersecurity company, with headquarters in Cheseaux-sur-Lausanne and Phoenix, Arizona.

Read the full text

Kudelski IoT is an international company active in the Internet of Things (IoT) sector, with headquarters in Cheseaux-sur-Lausanne and Phoenix, Arizona.

Former Businesses

SKIDATA, headquartered in Austria, manufactures access control systems and software for their management. SKIDATA provides turnstiles, admission ticketing, electronic ticketing systems, boom barriers, and other pedestrian and vehicular access control devices to ski resorts, parking lots, amusement parks, shopping malls, airports, and municipalities, among others. The segment was sold to Assa Abloy in July 2024.

From Wikipedia’s article on Kudelski Group, shared under CC BY-SA 4.0.5

Subsidiaries and ownership

Subsidiaries

Also owns

Subsidiaries (GLEIF)

From Wikidata.1 Ownership links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); each one cites its LEI record.

Timeline

  1. 1991New chief executive André Kudelski becomes CEO1
  2. 1951Founded Founded1