Sian Manville

Growth Operating Partner

Growth Capital

Mar 2026 - Current (5 months)

Senior Consultant

Aux Insights

Mar 2025 - Mar 2026 (1 year 1 month)

- Advised private equity firms and consumer brand leadership teams on growth strategy, digital marketing performance, and channel profitability across beauty, wellness, and lifestyle brands. - Led commercial diligence and outside-in growth assessments for potential acquisitions, evaluating marketing efficiency, channel mix, customer acquisition strategy, and scalability. - Identified EBITDA-impacting opportunities across paid media, influencer/UGC strategy, retention marketing, and e-commerce conversion, translating marketing improvements into measurable financial outcomes. - Built growth roadmaps for portfolio brands, including channel expansion strategies, media investment frameworks, and influencer marketing programs designed to accelera

Director, Growth

KOSAS

Jul 2022 - Mar 2025 (2 years 9 months)

- Led performance marketing, retail media, and growth strategy for Kosas’ DTC and wholesale ecosystem, managing $XM+ annual paid media investment across Meta, Google, TikTok, and emerging platforms during a significant business growth spurt. - Scaled customer acquisition while protecting profitability by implementing ROAS guardrails, CAC targets, and channel attribution frameworks tailored to beauty’s retail + DTC model. - Built and led the performance marketing function, overseeing agency partners, creative testing programs, and cross-functional alignment with brand, retail, and finance teams. - Developed data-driven launch and hero-SKU growth strategies, using paid media, influencer amplification, and retailer demand signals to drive velo

Director, Growth

KOSAS

Jul 2022 - Mar 2025 (2 years 9 months)

Associate Director, Growth

Ampush

Jul 2021 - Nov 2021 (5 months)

- Managed multi-million-dollar paid media programs across Meta, Google, and emerging channels for high-growth consumer brands, driving customer acquisition while maintaining strict CAC and MER efficiency targets. - Built full-funnel growth strategies integrating paid media, creative testing, and landing page optimization, improving acquisition efficiency and conversion rates across DTC e-commerce clients. - Developed expertise in performance creative testing frameworks and channel incrementality, translating platform data into actionable growth strategies for consumer brands. - Partnered with brand founders and marketing leaders to scale acquisition spend responsibly while maintaining profitability guardrails, informing long-term growth pla

Growth Marketing Lead

Ampush

Aug 2020 - Aug 2021 (1 year 1 month)

Senior Growth Marketing Analyst

Ampush

Aug 2019 - Aug 2020 (1 year 1 month)

Growth Marketing Analyst

Ampush

Jul 2018 - Aug 2019 (1 year 2 months)

- Fell into a career I love out of sheer luck at age 22. Learned the ropes on Google, Meta, TikTok, and Affiliate platforms from the best in the industry.

Business Analyst Intern

Politico

Sep 2017 - Dec 2017 (4 months)

Audience Solutions Intern

Politico

May 2017 - Aug 2017 (4 months)

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