The Oregonian features Embark
The Tanzanian government requires all climbs to be guided and supported. If you’re looking for a local option, I doubt you’ll find anyone in Oregon who knows Kilimanjaro as well as Donovan Pacholl. He spent several years living at the base of the mountain and in 2003 helped establish the Kilimanjaro Porters Assistance Project. He now runs Embark Exploration Company (embarkexplorationco.com), which specializes in climbs up the beautiful Lemosho route.