
MEYREUIL, France, Dec 1, 2025 – Presto Engineering has acquired Garfield Microelectronics (GFMicro) to expand its ASIC design capabilities and strengthen its position in the European semiconductor market.
“This acquisition is a clear commitment of Presto Engineering to the future of Europe’s semiconductor ecosystem. It reinforces our ambition to be the largest and most trusted pure-play ASIC leader in Europe, focused on the industrial, medical, communication, aerospace & defense, and smart mobility markets,” said Cédric Mayor, CEO of Presto Engineering. “The combination of GFMicro and Presto Engineering will bring customers the best of both design and manufacturing, accelerating their semiconductor innovation journey.”
The GFMicro brand will be retained as “GFMicro by Presto Engineering” and will continue operating from its Stroud and Bristol locations in the UK. Rod Oldfield, CEO of GFMicro, will assume the role of vice president for Presto Engineering in the UK.
“With Presto’s backing, GFMicro can accelerate its growth, expand its capabilities, and deliver an unrivalled one-stop shop for customers. Together, we are creating powerful synergies that are defining semiconductor innovation and strengthening global supply chain resilience through combined, end-to-end solutions and expertise” said Rod Oldfield, CEO of GFMicro Ltd.
Source: Presto Engineering
About Presto Engineering

Presto Engineering designs and produces integrated circuits for medical, automotive, industrial and communications devices. The company, founded in 2006, is headquartered in Meyreuil, France, with additional sites in the United States, Denmark, the United Kingdom and Asia. Presto develops custom ASICs for medical wearables and diagnostics and supports low-power operation, miniaturization and long-term reliability. The company holds ISO 13485 certification for medical-device development and manages the ASIC workflow, including design, test development, qualification, packaging and volume production. Presto also offers silicon platforms that provide integrated-circuit baselines for new medical designs. The company employs more than 150 people, operates multiple engineering labs in Europe and manages a global supply chain capable of producing over 50 million units annually.
About GFMicro

GFMicro is a fabless silicon design firm based in Gloucestershire, UK. The company, formally known as Garfield Microelectronics Ltd, was founded in 1994 and has more than 30 years of experience in digital and analog application-specific integrated circuit development and silicon supply. It designs custom integrated circuits, provides silicon IP blocks, and supports both high-reliability and high-volume production needs. GFMicro works with semiconductor foundries and serves customers in aerospace, defense, industrial, automotive, consumer electronics, home appliances, and microdisplay markets. The company employs about 30 people worldwide as of 2025.