Marrin Costello is an American businesswoman + designer + brand architect. Her career as a creative began at age seven, after receiving a bead kit for Christmas.  Selling her creations at local San Francisco Bay Area craft faires and local boutique retailers while in grammar school, Costello's love for both business and fashion were realized at a very young age.

Less than a decade later, a childhood hobby has transformed into a global luxury lifestyle brand — with jewelry at its core. While studying at the University of California, Los Angeles, Costello's collection was featured on American Idol — and a business was born. Marrin Costello collections have since been featured in Vogue, Huffington Post, In Style, and US Weekly — and she has personally been recognized as a lifestyle influencer, style icon, and tastemaker.

While the MARRIN COSTELLO LLC ® team is headquartered in Tampa, Florida — Costello travels the globe visiting the brand's retailers, collaborating with other businesses, and inspiring the upcoming collections.  Costello also shares her love  and talent of entrepreneurship with her business + branding consulting clients.  Costello also celebrates her fellow movers-and-shakers by recording a weekly radio show + podcast where she interviews movers and shakers across all fields to chat all things motivation, inspiration, and entrepreneurship — eponymously called @marrincostelloradio.  And at the center of the MARRIN COSTELLO LLC company is a mission to help people feel fearless, fabulous, and like the best versions of themselves.