Ben Whitmarsh-Knight
Senior Director, Accounting & Group Financial Controller @Optimizely
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WORK HISTORY
Senior Director, Accounting & Group Financial Controller @Optimizely
London, GB
EDUCATION
Cardiff University / Prifysgol Caerdydd
Bachelor of Science (BSc Hons), Mathematics
ABOUT BEN WHITMARSH-KNIGHT
Strategic and people-focused finance leader with 13+ years of experience, including 5 years in senior leadership roles across SaaS, media, technology, and marketing sectors. Qualified with KPMG, I’ve since thrived in dynamic, high-growth ($80m to $430m), PE-backed environments, leading finance transformation and driving commercial success across international operations. I believe finance should sit at the heart of the business—going beyond reporting to become a true strategic partner. By leveraging automation, AI, and advanced analytics, finance teams can unlock smarter, faster decision-making and become catalysts for innovation and value creation. Throughout my career, I’ve delivered impact through a range of transformational and high-stakes initiatives, including- Leading ERP (NetSuite) and finance systems implementations (e.g. Blackline, Navan) and identification and implementation of AI solutions (e.g. Numeric)-Chairing ESG committees to enable compliance and cultural change- 5 acquisitions in a veriety of capacities including buyer-side due diligence and seamless post-merger integration- Managing company wide finance transformation programs, including process & policy alignment and offshore shared service centre creation-Supporting seller-side due diligence and preparation ahead of PE exit- Building, mentoring and scaling high-performing international finance teams. I\'m passionate about developing people, building modern finance functions, and helping businesses grow with confidence. Always open to connecting with fellow finance leaders and ambitious businesses to offer advice and support.
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