Totally understand the overwhelm there are a lot of great agencies out there, and each has its own strengths. I work in a presentation design agency myself, and one thing I always recommend is to look for teams that don't just design slides, but truly understand storytelling, visual hierarchy, and how to align design with your goals (especially for something as high-stakes as a product launch).
If you're looking for custom presentation design services with fast turnaround and a collaborative approach, feel free to check out our work or DM me I’m happy to share insights or even help you evaluate proposals you're considering. Good luck with the launch it’s an exciting milestone!