Who We Are
Host & Handoff is a Colorado-based party planning and day-of wedding coordination company built on a simple idea: you should get to enjoy your own event. From milestone birthdays and company celebrations to weddings, we handle the details so you can stay present for the moments that matter.
Whether you want full-service party planning or a trusted partner to handle the day, we sweat the small stuff and keep everything on track. At the heart of it, we love a good party, and we'd be honored to help you throw yours.
Cassie Koza
Owner + Lead Planner
Cassie was born and raised in Colorado and is in love with a good celebration. Her path started in bridal, where she spent years as a wedding dress specialist helping people find the piece that made the day feel real. From there, she began assisting wedding companies, learning events from the inside out while also managing customer service teams in the corporate world.
Then she planned her own wedding in June of 2024, handling every detail and every last centerpiece, and fell completely for the process. Since then, she's had her hands in birthday parties, company social events, and day-of coordination of all kinds.
A great theme is her love language. Cassie feels lucky to be part of so many celebrations, and she'd be honored to be part of yours. Whether you've got a full vision or just a date and a dream, she's here to carry the details so you can be fully present for the moment.
