weather4expeditions.com supports expeditions in both Polar regions: Arctica-Antarctica.

Testimonials:
John Houston - Dixie Dansercoer - Bjorn Sekkeseter - Fuchs Foundation

Arctica:
Greenland 2010:
PolarIce10: kiting from Hahn Glacier to Ilulissat
Kite Greenland 2010-part 1: kiting from Isortoq to Ilulissat 
Kite Greenland 2010-part 2: kiting from Narsaq to Qaanaaq
Neem Ice Core Drilling on Northwest Greenland

North Pole 2010
North Bound Quest: Skiing the Last Degree to the North Pole
North Passage: the Northeast Passage and the Northwest Passage in one go!

Previous experiences
Greenland
Arctic kites: kitingfrom Tasillaq to Kangerlussuaq
Kite Greenland: kiting from Narsaq to Qaanaaq
Quest for Greenland: kiting from Narsaq to JP Koch Glacier and than to Qaanaaq
Ronny Finsas: kiting from Ilulissat to Qaanaaq
Fuchs Foundation: dog sledging from Tasillaq to Kangerlussuaq
Bull’s Expeditions: skiing from Kangerlussuaq to Tasillaq
X-Greenland: skiing from Ilulissat to Tasillaq

North Pole
North Pole 09 Expedition: John Houston and Tyler Fish from skiing from the main land to North Pole

 
Antarctica
Coming up:
PolarIce 2010: kiting from Novolazarevskaya to South Pole, from there to the Bellingshausen Sea
Antarctic Matters 2011: kiting from Novolazarevskaya to South Pole araound dome C, around East Antarctica back to Novo.

Previous experiences
Ronny Finsas World Record Distance in 24 hours: from South Pole to Patriot Hills
Aloha Antarctica: kiting from Neumayer to South Pole and than to Patriot Hills
In the Wake of the Belgica: sailing from Antwerp to Ushuaia, from Ushuaia to the Antarctic Peninsula
Finnish South Pole Expedition: skiing from Hercules Inlet to South Pole unsupported
Skiing Antarctica: skiing from Berkner Island via South Pole down the Axel Heiberg Glacier