Wikipedia
Himex is a Mount Everest guiding company. It was founded in 1996 by New Zealander Russell Brice. The name is a truncated version of the full name "Himalayan Experience". National Geographic said Himex was the "largest and most sophisticated guiding operation on Everest" in a 2013 article. Himex's team is known for fixing lines on Mount Everest, although in 2012 other teams did this work.
Three of the expeditions of this company were filmed in the television show Everest: Beyond the Limit in the early 2000s. In 2013, David Tait achieved his 5th Mount Everest summiting with a Himex team. (see also List of Mount Everest summiters by number of times to the summit)
Brice has pushed for many years to use helicopters to fly gear over the Khumbu Icefall to the Nepal-side Camp I to enhance safety. In the aftermath of the 2015 Nepal earthquakes Himex pulled out from summiting Everest that season.
In 2016, Himex employed 21 time Everest summiter Phurba Tashi, who did not make a summit but in 2016 who was mourning the loss of both his parents.