Is there any baby walker or activity center for heavy baby?

All baby walkers and activity centers are for babies weighting max. of 12 kgs/26.5 lbs and my baby has already ped that weight long time ago, and he needs somewhere to stand, what can I do?, where can I find something for him? (Ireland) U.S products don't ship to Europe, I mean I feels like he's been left out already for his overweightness, only walkers for thin babies???