Do cats need company

Not nesesarily, if you play with your kitten or give attention regularly, you don't need another kitten, but if the kitten is alone a lot, it might be a good idea to get another one for it to play with. It's also good to get another kitten while your kitten is young, because as it gets older, it will be more likely to protect its turf, and may not let other cats come in to its house.