Sandie Trombert, Founder & CEO
Sandie Trombert is a senior operating advisor with 20+ years of experience across growth, brand, organizational build-out, and implementation. Her career spans agency leadership, startup marketing, nonprofit founding, operations, and legal training, giving her a rare ability to connect strategy, structure, and execution.
She has managed a $40M agency portfolio, served as a company’s first CMO, and founded an organization that has served 84,000+ NYC children. Her work focuses on helping ambitious organizations build the clarity, systems, and operating discipline needed for their next stage.
Selected experience from prior roles includes:
The experience behind the practice
Experience that shapes how I work today.
Built a marketing function from the ground up
As Zeam's first CMO, established its marketing and growth infrastructure, contributing to a 793% increase in app downloads, 101% growth in viewers and an 85% reduction in media spend.
Built an nonprofit designed to endure
Founded Little Essentials and established the governance, partnerships, team and operating model that enabled it to transition to professional leadership. Today, Little Essentials has served more than 84,000 NYC children and continues to grow beyond its founder-led chapter.
Led a $40M agency portfolio
Oversaw strategy, teams, execution and client relationships across a $40M portfolio of national and global brands, with responsibility for both delivery and commercial performance.
Since launching in April 2026, Maison Ascend has partnered with organizations across industries, providing strategic guidance and hands-on support tailored to their needs.
Healthcare
Brand strategy, positioning and website direction
Media
Brand strategy, digital transformation and sales enablement
Hospitality
Event positioning, communications and audience development
Entertainment/ Wellness
Ongoing strategic advisory, launch and growth planning
Medical Technology
Ongoing organizational, team and growth advisory