German manufacturer Knipex make some great pliers and snips.
These are the smallest pliers they make at just 100mm in length. Don't be fooled by their small size as they are the same quality as the larger tools and are extremely useful if space is tight. Their small size also means they can also happily live in your pocket.
Combine these pliers with a penknife in your pocket and you have a real alternative to carrying a Leatherman multitool.
Supplied with a custom made, hand stitched, leather sheath to keep things tidy.