Natalie Holtgrefe is an accomplished marketing leader with deep experience shaping integrated campaigns and customer lifecycle strategies across high-growth B2B tech sectors including SaaS, AI, healthcare, and clean energy. A former Director of Healthcare Relationship Marketing at Microsoft, she has a proven record of accelerating pipeline, increasing adoption, and elevating brand presence in both startup and enterprise environments. Natalie excels in full-funnel marketing, partnering closely with sales, product, engineering, and customer success to deliver programs that drive revenue, utilization, and retention. Data-driven and impact-focused, she has led GTM strategies for AI solutions, built scalable digital marketing infrastructure, and developed customer engagement programs that strengthened relationships and fueled measurable growth.