Besides Pluto, there are 8 other dwarf planets in the Kuiper Belt that have 9 moons between them. Shown are each dwarf planet with it's moon, in order of moon size (largest to smallest). Note that these are all "almost certain" or "highly likely" to be dwarf planets.
Dwarf planet Eris
Dwarf planet Orcus
Dwarf planet Varda
Dwarf planet Haumea
Dwarf planet Salacia
Dwarf planet Quaoar
Dwarf planet Gonggong
Dwarf planet Makemake
The Earth is the cradle of humanity, but mankind cannot stay in the cradle forever.
- Konstantin Tsiolkovsky