Frequentis AG: FREQUENTIS C4i and SAMI L3Harris Technologies to collaborate on defence communications in Saudi Arabia

Vienna / Austria (pta017/18.02.2026/12:24 UTC+1)

• The Memorandum of Intent signed between both parties sets collaboration framework for defence communication programmes supporting localisation objectives in Saudi Arabia
• Agreement aligns C4i's VOICE C2 system expertise with SAMI L3Harris in-country delivery and support capabilities

Frequentis C4i, as the original equipment manufacturer of the VOICE C2 communication system currently in use by the Royal Saudi Air Force, has signed a Memorandum of Intent (MOI) with SAMI L3Harris Technologies to explore collaboration on defence communication opportunities in the Kingdom of Saudi Arabia.

The MOI establishes a framework for cooperation between the two organisations, focused on current programmes and future offers in the field of program delivery and local support aligned with Saudi Arabia's defence capability localisation objectives.

"This Memorandum of Intent reflects a practical step toward closer cooperation on secure command-and-control communications and local capabilities," says Darren Gardner, Managing Director at C4i.

"We are proud to formalise this Memorandum of Intent with Frequentis C4i, a recognised leader in mission-critical C2 voice communication technology," says Adrian Kemps, CEO SAMI L3Harris. "This collaboration represents a strategic step forward in delivering secure, resilient, and interoperable C2 communication systems to the Kingdom. By combining Frequentis C4i's advanced VOICE C2 capabilities with SAMI L3Harris' tactical communication capabilities, we are strengthening our ability to support complex operational environments with reliable, future-ready solutions. Together, we are committed to enhancing mission effectiveness and ensuring operational superiority for our customers."

The MOI also provides for ongoing discussions between the parties to review technical and operational requirements as defence needs and technologies evolve. The planned collaboration focuses on knowledge sharing, local support capability, and coordinated program delivery for future opportunities in Saudi Arabia.

About C4i

C4i has been a member of the Frequentis Group since 2021. Founded in 1989, C4i has led advancements in secure communications for the world's most demanding mission-critical environments.

C4i's interoperable communication solutions are used by defence, governments, and industry in more than 40 countries. C4i products enable rapid response times, interoperability, and flexible asset utilisation, and provide customers with ongoing cyber security protection.

For more information, please visit http://www.c4i.com/.

About FREQUENTIS

Frequentis stands for a safer world. Our solutions are used in our customers' command and control centres to help them make the world safer.

Frequentis is a world leader in high-tech solutions for Air Traffic Management, supporting both civil and military air traffic control organisations, as well as Public Safety and Transport, where police, emergency rescue services, fire brigades, railways, coastguards, and port authorities rely on our extensive portfolio.

The listed family business based in Vienna, Austria, drives innovative and sustainable solutions for safety and security in everyday life and in the safety-critical sector. Its air traffic optimisation solutions for air traffic control centres are contributing to reducing emissions.

As a global player with more than 2,600 employees (full-time equivalents/FTE), Frequentis has a worldwide network of companies in over 50 countries. Its products, services, and solutions are used in around 150 countries. Shares in Frequentis are traded on the Vienna and Frankfurt stock exchanges; ISIN: ATFREQUENT09, WKN: A2PHG5. In 2025, revenues were around EUR 580 million and EBIT was around EUR 47 million (preliminary figures).

For more information, please visit www.frequentis.com

Barbara Fuerchtegott, Head of Communications/Company Spokesperson
barbara.fuerchtegott@frequentis.com, +43 1 81150-4631

Stefan Marin, Head of Investor Relations
stefan.marin@frequentis.com, +43 1 81150-1074

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Emitter:	Frequentis AG Innovationsstraße 1 1100 Wien Austria
Contact Person:	Stefan Marin
Phone:	+431811501074
E-Mail:	stefan.marin@frequentis.com
Website:	www.frequentis.com
ISIN(s):	ATFREQUENT09 (Share)
Stock Exchange(s):	Vienna Stock Exchange (Official Trade)
Other Stock Exchanges:	Regulierter Markt in Frankfurt