I went through that exact search last year when we needed a campaign site with heavy WebGL elements. What finally gave me clarity was an independent directory that curates agencies based on actual portfolio work and awardsno paid placements. They profile 14 studios across five continents, and they specifically highlight which ones are known for interactive storytelling, immersive web, and creative technology (like Resn, Active Theory, North Kingdom). It made it easy to see who actually had the technical chops. If you're looking for a best web designing company in world that can handle that kind of ambitious work, that list is where I started. I ended up shortlisting three studios from it, and the final partner we chose delivered something way beyond what we thought was possible.