cyclosportive Alpine holiday

A message from accross the waves. In Netherlands we have (after corona mabe had...) several organizations organizing bike holidays in the mountains. With a group of approx. 30 fanatics (who don't know one another usually) you travel to the Alpes and cycle 125-200km every day for 14-21 days. There's both camping or hotel trips. Luggage is transported to the next "port of call" by a van of the organization. In contradiction to all other foreign organizations organizing cyclosportive holidays, the Dutch ones are expensive but not impossibly expensive.

I wonder if anybody can post me a links of similar British organizations? Thank you!