Sophie Brannigan

Experience Led Growth (xlg) Specialist at Chattermill

Sophie Brannigan is an experienced professional in customer success and research, currently serving as an Experience Led Growth (XLG) Specialist at Chattermill since October 2025. Prior to this role, Sophie held the position of Head of Customer Success at The Happiness Index from August 2023 to October 2025 and led customer success initiatives at Wordnerds from August 2020 to August 2023. Sophie's career began at DRG as a Research Manager from May 2014 to August 2020, and included roles as Senior Research Executive and Research Executive, followed by a role as Trainee Client Executive at Millward Brown. The professional journey also includes experience as a Voluntary Support Worker at Momentum North East. Sophie Brannigan earned a Bachelor of Science (BSc) degree in Psychology from Newcastle University from 2009 to 2012 and is MRS Qualified as a Qualitative Moderator.

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