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Martin Gronow began their work experience in 1987 as a Senior Consultant at the National Computing Centre, where they served as a project manager for EU-funded programs and promoted the benefits of new technology. In 1997, they joined Norweb Telecom as a Product Manager. From 1999 onwards, Gronow joined TalkTalk Business, where they held several roles including Head of TDM & Inbound, Voice Services Product Manager, and Product Development Manager. Martin retired in 2023.

Martin Gronow attended Sir Henry Meols School from 1971 to 1973, but the time spent there does not indicate the attainment of a degree or field of study. It is also mentioned that Martin has a Higher Certificate in Electrical Engineering, but no information is provided regarding the institution or the year it was obtained.