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Marianna Martinelli

Founder & CEO

Marianna Martinelli is a community leader, builder and strategist. She is a serial community-scaler, experienced working with high-growth startups and intimate community efforts. Her superpower is protecting the integrity of a community as it grows.

Before starting Grand Trine Studio, Marianna was the founding Director of Community for The Wing, and served on the founding teams for Knotel and Neuehouse. She also produced two independent films no one will ever see, sold handbags at Neiman Marcus and Kate Spade and briefly had an admin job at a law firm.

A Native Texan who currently resides in Brooklyn with her family, she considers herself an amateur Astrologer, budding herbalist, mycologist and a voracious reader of books about trauma, healing and resilience that inform her community practice.


Our Team

  • Taylor Davis

    Research & Insights

  • Camille Barbin

    Community Coordinator

  • Flora

    Dog & Mascot

A Grand Trine is a powerful, triangular formation that can appear in an individual’s astrological chart—it represents flow, harmony, natural gifts and a deep need to access and share those gifts. Astrology, like community, is a system that helps us understand, interpret, and tell our stories.