1. Apple:

   • Rumored to be working on AR and VR hardware and software

2. Google:

   • Investing in AR technologies and platforms

3. Sony:

   • Developing VR hardware and experiences for gaming and beyond

These companies are approaching the Metaverse from different angles - some focusing on hardware, others on software platforms, and some on specific applications or use cases. It's worth noting that the concept of the Metaverse is still evolving, and these efforts may not all align with a single, unified vision.