VIAVI Acquires Spirent's High‑Speed Ethernet, Network Security and Channel Emulation Testing Business

VIAVI Solutions Acquires Spirent Communications

March 5, 2024

Telecommunications

VIAVI Solutions has agreed to acquire Spirent Communications plc in an all-cash offer valuing Spirent at approximately £1,005 million (about $1,277 million), with Spirent shareholders to receive 172.5 pence per share plus a special dividend. The transaction, supported by a strategic convertible note investment from Silver Lake and committed debt facilities, is expected to close in the second half of 2024 subject to shareholder and regulatory approvals and is intended to create a leading provider of test, assurance and security solutions across service providers, data centers and mission-critical infrastructure.

Keysight Technologies Acquires Spirent Communications plc

October 15, 2025

Telecommunications

Keysight Technologies has completed its acquisition of Spirent Communications plc for approximately £1.16 billion (about US$1.46 billion) on a fully diluted basis. Spirent shareholders receive 202.5 pence per share (199p cash plus a 3.5p special dividend); Spirent will be integrated into Keysight’s Communications Solutions Group while certain Spirent business lines will be divested to satisfy regulatory conditions.

VIAVI Solutions Acquires Inertial Labs

December 13, 2024

Aerospace & Defense

VIAVI Solutions Inc. signed a definitive agreement to acquire Inertial Labs, Inc. for $150 million in initial consideration with up to $175 million of contingent consideration over four years. The acquisition broadens VIAVI’s product capabilities in positioning, navigation and timing (PNT) and accelerates its entry into aerospace, defense and autonomous industrial end markets; it is expected to add about $50 million in NSE revenue in 2025 and be EPS-accretive within 12 months.

Keysight Technologies Acquires ESI Group

January 10, 2024

Software

Keysight Technologies announced the successful result of its cash tender offer for ESI Group shares and will hold 98.2% of ESI's share capital following settlement. Keysight said it will request a squeeze-out of remaining shares at the same cash price (€155 per share); ESI is a France-based provider of predictive physics modeling and virtual prototyping software with ~1,000 employees and ~€130m in 2022 revenue.

Keysight Technologies Acquires SCALABLE Network Technologies

October 18, 2021

Cybersecurity

Keysight Technologies acquired SCALABLE Network Technologies, a Culver City–based provider of communications network simulation and modeling solutions, to augment its 5G and cybersecurity software portfolio. The deal (terms not disclosed) will integrate SCALABLE’s network digital-twin and cyber-assessment capabilities into Keysight’s offerings for commercial, government and defense customers.

Infineon Acquires Marvell's Automotive Ethernet Business for $2.5B

August 14, 2025

Manufacturing

Infineon Technologies completed the acquisition of Marvell Technology's Automotive Ethernet business for $2.5 billion in cash in mid-August 2025. Infineon will fold the operations into a new "Ethernet Solutions" business line to strengthen its automotive semiconductor portfolio and expects the business to generate $225–250 million in 2025 with a design-win pipeline of about $4 billion by 2030.