Member

José Manuel Arnaiz de Castro is a telecoms engineer, entrepreneur and independent board director, with over four decades of experience building and governing companies across multiple industries in Europe, LATAM and the United States.
He has founded several companies. Among the most notable are DIGI Spain — one of the most successful greenfield entries in European telecoms, reaching one billion euros in revenue — and Jazztel, Spain's leading alternative telecoms operator, listed on NASDAQ:JAZZ.
Today he serves as Independent Non-Executive Director and Audit Committee Chair of DIGI Communications N.V. (BX:DIGI), co-founder of QoolNet — a quantum-safe networking spin-off from Universidad Politécnica de Madrid — and director at CREDEC, an FCA-regulated payments firm in the United Kingdom. He is also NED and Chairman of Ports Tech (Spain) and a former member of Intel Corporation's Advisory Board for the EMEA region.
He combines deep operational knowledge with strategic judgment and the ability to challenge conventional thinking — across listed, private and regulated boardrooms. He teaches governance in board director programmes and writes on digital transformation and the governance of technology.
He holds a Certificate in Governance and the Diploma for Professional Directors from IC-A. Member of ISACA, DIRSE, Entrepreneurs' Organization and Instituto de Consejeros-Administradores. Former member of ICGN and IoD.