High-Resolution Conversion of Two Logos

I have two existing logos saved as PNG files and need them rebuilt as truly high-resolution raster images suitable for sharp, large-format print work—think banners, posters, and any other print pieces I may decide on later. While I don’t have exact dimensions yet, the end goal is to be able to scale each file freely without the slightest hint of pixelation or blur.

Here’s what I’m looking for you to deliver:
• A clean, high-resolution raster version of each logo (minimum 300 dpi at poster size or a comparable pixel dimension you recommend).
• Files returned in print-friendly formats—at least TIFF and PNG—and layered PSD in case I need future tweaks.
• Consistent color fidelity with the originals so the printed output matches what I see on screen.

I’m happy to take your guidance on ideal resolutions and any additional formats you think would be useful. Experience with Adobe Photoshop or equivalent tools is important, as I’d like professional-grade results ready to hand straight to any print shop.