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Most hire shops have jacks of differing types.
Depending in the shed construction, though, lifting it unevenly, or without enough supports, may have it pulling itself apart.
If you do lift it, you could slide under some a pair of treated 4x4s as skids, with a DPC strip between the skids & base (passing there's a concrete base).
Otherwise, maybe concrete pier blocks?
NotThamesWater
If someone needed to raise a shed, perhaps because they'd noticed the base on the exterior was damp, where could someone hire such a jack?
And what would they put between the base and the concrete base it's on?