top of page
Meet Our Team

Krystal Polychronis
Founder, CEO & President of 3 Strands, Artist Manager

Sophia Mammana
Director of Artist Development & Strategy
Sophia Mammana serves as Director of Artist Development and Strategy, where she works alongside artists to clarify their brand and message, develop marketing strategies, and turn their goals into practical next steps. Her background spans artist management, trade show and live event marketing and operations, faith-based film marketing, performance, and over 10 years of leading worship in the local church. Her work has included managing a singer-songwriter and performing alongside that artist as a backing vocalist and keyboardist, as well as contributing to marketing strategy and content planning for a faith-based film. She also teaches young women, extending her commitment to encouraging others into the classroom. Above all, she is passionate about creating experiences where people can encounter Jesus through music, storytelling, and meaningful connection.
Sophia Mammana serves as Director of Artist Development and Strategy, where she works alongside artists to clarify their brand and message, develop marketing strategies, and turn their goals into practical next steps. Her background spans artist management, trade show and live event marketing and operations, faith-based film marketing, performance, and over 10 years of leading worship in the local church. Her work has included managing a singer-songwriter and performing alongside that artist as a backing vocalist and keyboardist, as well as contributing to marketing strategy and content planning for a faith-based film. She also teaches young women, extending her commitment to encouraging others into the classroom. Above all, she is passionate about creating experiences where people can encounter Jesus through music, storytelling, and meaningful connection.

Maddi Overy
Director of Booking

Chelsea Kyles
Executive & Personal Assistant

Marlene Sanchez
Artist and Media Operations Manager
bottom of page