During her time at Maitland, Bartch advised clients including 3i Group, BAA, Hiscox, Japan Tobacco and The Weir Group, and developed particular expertise in crisis and litigation comms.
Julian Hanson-Smith, StockWell chairman, said: 'She has significant experience, both as a strategic comms adviser and as an effective professional services manager. We look forward to her contribution as chief operating officer as we continue to grow.'
Bartch spent a decade as a solicitor at Herbert Smith and Vickers before joining Maitland in 2000. She joins StockWell co-founder Philip Gawith at the agency, who was CEO of Maitland until October of last year.