This is where your story starts—and where ours started 10+ years ago.

Who you become in the pursuit is.

The mountain isn’t the goal.

Meet Your Mountaineering Coach 

The memory that stays with you isn’t the summit photo.
It’s the moment you realise:

“That was me at my best.”
“I was right to try.”
“I was always capable of this.”


On the surface, what we do here is mountain-specific training.
But underneath, it’s building towards quiet, life-affirming moments like that.

If that’s your north star—then you’re in the right place. This is where your story begins.

Not to scrape through, not to “just make it", but to become the strongest, most powerful version of ourselves in the pursuit of that mountain.

Here at Vertical Performance, that’s what we train for.

Gave birth to our twin daughters:
Emma and Sophie

The best thing I’ve ever done
A Step-By-Step Manual To Mountaineering & Trekking

Published my first book:

2019

The highest mountain outside of the Himalayas

Moved to Germany

SUMMITED ACONCAGUA

2018

Marrying my husband, Christopher

THE BEST DECISION I EVER MADE:

2017

SUMMITED ELBRUS IN RUSSIA

Dug in and did the research and training—and a lot of it

2016

Summited Kilimanjaro, but had THE WORST experience. If I hadn't suffered and struggled so much, I likely wouldn’t have started studying mountain-specific training

2015

The exact words my client asked me that changed my whole life

“Kate, would you train me for Kilimanjaro? And come do it with me?”

2014

Opened a private training studio in Kensington
Featured in The Daily Mail and Cosmopolitan (UK)

2012

Moved to London

Completed my Bachelor of Sport Science

2011

And this is where mine started 10+ years ago:

Published my first book:

Held a live webinar about mountain-specific training for 1,432 people

Started my Masters in Performance Psychology

Climbed my first North face route in the Alps and my first Grade 4 winter route in Scotland

Climbed my first North face in the Alps

2024

Ticked off a dream route: The Jubiläumsgrat

Summited Matterhorn in 3hrs 19 minutes from the Swiss side

The year my book officially sold out

2023

Attempted The Cuillin Ridge Traverse in one day—hello Scottish weather

Fell in a crevasse in the Alps—a moment that still makes my palms sweat

Joined forces with Kandoo Adventures as their go-to Coach

2022

Climbed my first WI 4 ice climbing route

Built my climbing wall (and the girls climbing wall)

Spent another week climbing in the Alps

2021

Being in a foreign country with two new little babes absolutely rocked my world

At the time, it felt as though there was no space for being a Mum AND a mountaineer, coach, and author

But then, Christopher surprised me with a five-day mountaineering trip in the Alps… And guess what? I’ve never hung up my boots again

The year I hung up my B2 and b3 boots

2020

Hit 100k on Instagram, with 51M+ views on our posts

Put forward an application to publish my first research paper. Read it here!

Published my second book worldwide

Won my first ultra marathon (126km) in 28h 36m. Watch the video here!

2025

Start Training With Us Today ➚

Not because you trained like Rocky, but because you trained in a mountain-specific way.

So, can we skip the small talk and go straight to the part where we talk about how you’re going to train so that you can truly experience *THAT* moment?

That moment all starts with your training.

THAT epic, life affirming moment you’re envisioning for your next mountain - the one where you feel like Rocky, unstoppable, powerful, and undefined by physical capabilities? 

Take it from me and my ten plus year timeline… 

Hey, can I tell you something else?

Meet The Team

Managing Director:
Denise Grumbt

Denise is the Managing Director of Vertical Performance, leading the strategic and operational direction of the company. She takes the vision and applies the structure, systems, and strategy to make it real.

You may not always see her work directly, but you will feel it—in the organisation, the communication, the smoothness, and the sense of being held and supported every step of the way.

She is the quiet backbone of Vertical Performance—ensuring that every woman who trains with us has everything she needs to move from start to summit.

Because the real goal isn’t the summit.
It’s who you become in the pursuit of it.


Because the real goal isn’t the summit.
It’s who you become in the pursuit of it.