Climbing the Seven Summits, LLC -- feel free to call us CTSS for short! -- is a world-leading mountain guiding, expedition, and trekking service.

We are known as the Seven Summits specialists for good reason, with our trademark expeditions being the tallest peaks on each of the seven continents. That said, we don't stop at just those seven. We run countless expeditions and treks all over the world and can also build you a custom itinerary.

If you can dream it, we can help you do it.

CTSS is owned and operated by renowned high altitude guide Mike Hamill, who is a veteran of more than 120 expeditions on all seven continents, has "lapped" the Seven Summits six times, and has been guiding for more than two decades with unrivaled success. He is also the author of the definitive guidebook, "Climbing the Seven Summits: A Comprehensive Guide to the Continents' Highest Peaks."

We strive to be the pride and class of the mountain on every expedition by climbing in “good style," meaning we prioritize the wellbeing and safety of our teams, leave no trace on the environments we operate in, respect culture, contribute to local economies by employing regional staff and businesses, and climb in a self-sufficient and self-reliant way. 

We lead by example and promote a responsible approach to adventure travel by connecting people to the natural world and giving back to local communities by donating a percentage of every expedition to Tiger of the Snows Fund.

This ethos shows in the positive feedback we receive from our teams who form lasting friendships forged in the mountains as they work together to overcome tough challenges. These are experiences that go beyond just an expedition and shape people for a lifetime, transforming them into better, more powerful versions of themselves.

So if you can see yourself on the summit of an epic mountain, we’d be honored for you to place your trust in CTSS to help you get there (and back down!) safely.

Climbing the Seven Summits

Climbing the Seven Summits' headquarters in Seattle, United States

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Stephanie Kichler

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