Climbing Chimborazo

Could anybody recommend a trekking company that climbs to the summit of Chimborazo on a regular basis?
I have attempted to contact Alta Montana in Riobamba to no avail. Can't figure out if they are still in business or not.
Thanks in advance.

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Wow - really helpful, aguascalientes!

There is one company called Andean Adventures in Riobamba - I used them to climb Cotopaxi and ride to the foot of Sangay in 2012. They were very good and very professional - the outfit is run by a Canadian-Ecuadorian. You can find them here. Not sure how 'regularly' they do it, but climbing Chimborazo is hardly something you do in a group of 10 so they should be able to accommodate requests!

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What on Earth are you talking about? Your comment was completely and utterly unhelpful. The OP asked for a recommendation, I gave one. You didn't. Stop talking out of your culo.

Thanks for the posting,
i will definitively try to contact Andean Adventures.