Lillian Pierson, P.E. is a fractional CMO, data strategist, and AI marketing expert who helps technology startups engineer scalable, predictable growth. With professional licensure in engineering and over 20 years of experience bridging data, AI, and marketing, she brings a rare combination of technical fluency and executive-level growth leadership to her clients.

As the founder of Data-Mania, Lillian has supported a global portfolio of AI- and data-intensive SaaS startups, consultancies, and scale-ups, guiding them through high-ROI strategies that blend data systems, growth loops, and marketing automation. Her work focuses on helping VC-backed, bootstrapped, and growth-stage companies accelerate revenue with lean, data-informed marketing strategies that translate technical excellence into market traction.

Operating across North America, Europe, and Asia-Pacific, Lillian Pierson serves clients in industries ranging from AI software and analytics to emerging deep tech and B2B SaaS. Her unique approach integrates powerful growth marketing and product marketing methods, and leans heavily on Lillian’s deep expertise in data strategy, AI marketing architecture, and growth system design to build long-term marketing infrastructures that scale intelligently.