Life Coach to the Top 1%
Former WTA Pro Tennis Player
UC Berkeley Graduate
Entrepreneur
Investment Banker
Venture Capitalist
WHO the
HELL AM I?

About Kasia Siwosz

( 01 )

Success That Feels Like a Cage

The hidden side of success
On paper your life looks perfect: career, money, recognition. Yet instead of freedom, you feel pressure; instead of excitement, exhaustion. And no matter what you achieve, a quiet voice keeps asking if this is really all there is.
I know that place because I’ve lived it — and my story shows what it takes to rebuild when success alone isn’t enough
Read it, because it might be the mirror you didn’t know you needed.

Let’s build your breakthrough with your life coach in London!
To understand why I coach the way I do, you need to know where it all began.

Want the full story?

Keep reading.
Failure.
rebuild.
rise.
On repeat.
All by choosing myself.
01

When Dreams Start Small

I grew up in post-communist Poland, a world where ambition was dangerous and opportunity scarce. Tennis became my escape and my whole identity.

By eighteen I was traveling the world on the WTA tour, ranked among the top players, fighting with nothing but grit and stubbornness.

But without financial backing, the dream collapsed.
Overnight, the identity I had built my life around was gone, and I was forced to face the question: who am I without the game?`
I grew up in post-communist Poland, where ambition was risky and opportunities scarce. Tennis became my escape and identity.

By eighteen I was on the WTA tour, ranked among the top players, fueled only by grit.

But without financial backing, the dream collapsed — and overnight I had to face the question: who am I without the game?
Overnight, the identity I had built my life around was gone, and I was forced to face the question: who am I without the game?`

Lesson carried forward:

I understand what it means when your first dream dies — and how to begin again when there is no Plan B.
02

From Wall Street to the Freezer Floor

With nothing left to fall back on, I left Poland for America. I started in a community college in Kansas, pushed my way to Baylor, and eventually earned a scholarship at the University of California, Berkeley.

I became the first in my family to graduate from university, and I did it with honors.

It wasn’t about the degree itself; it was about proving that reinvention is possible, even when you’re standing on broken ground.

Lesson carried forward:

I know what it takes to build a future from nothing but work ethic and faith in yourself.
03

Betting Everything on Myself

After Berkeley I went straight into investment banking in London. Prestige, power, the adrenaline of 100-hour weeks — it looked like success.

But the longer I stayed, the louder the question became: is this really it?

So I left and opened a restaurant. I traded boardrooms for basements, Armani suits for aprons. Three years later, I closed it, broke and exhausted.

Later I thrived in venture capital, working with founders and shaping strategy — until COVID collapsed our fund.

I have lived both privilege and loss, both skyscrapers and broken kitchens, both the applause of success and the silence of failure.
After Berkeley, I entered investment banking in London — prestige, power, 100-hour weeks. It looked like success, but the question grew louder: is this really it?

I left to open a restaurant, trading boardrooms for basements, only to close it three years later, broke and exhausted.

Later I thrived in venture capital — until COVID collapsed our fund. I’ve known both privilege and loss, applause and silence.

Lesson carried forward:

Success without purpose is a prison, and failure is often the better teacher.
So I did what I always do when cornered:
I bet on myself.
Betting Everything
on Myself
Tennis
Berkeley
Wall Street
Startups
?
( 04 )

The Moment It Clicked

Coaching changes the game
I began to see the same truth
Through all those chapters — tennis, banking, entrepreneurship, venture — I began to see the same truth: the strongest performers never do it alone. Athletes always have coaches. Executives and founders need them too.



Coaching is not damage control. It’s not about fixing what is broken.
Through all those chapters — tennis, banking, entrepreneurship, venture — I began to see the same truth: the strongest performers never do it alone.

Athletes always have coaches. Executives and founders need them too.

Coaching is not damage control. It’s not about fixing what is broken.
It is about clarity, performance, and the courage to make the moves you know you need to make.
become
better every day.
( 05 )

I Don’t Teach.
I’ve Lived It.

I coach from lived experience

Strategic Life and Career Coach for London’s 1%

“I coach because I’ve walked through the fire”
“And I’ve come out the other side… clearer, stronger, and more myself than I’ve ever been”

This is what I’m meant to do.

Today I coach founders, executives, and high-achievers who already look successful on paper but are brave enough to ask for more. I don’t coach from books or theory.
I coach from fire. From deals that fell apart. From businesses that closed. From rebuilding again and again until clarity finally came.
I’d been coached my entire life as an athlete. On the court, having someone in my corner wasn’t optional–it was essential. It’s how I pushed limits. How I improved. How I won.

But when I stepped into the corporate world, that structure disappeared. Suddenly, everyone was expected to figure it all out on their own.

No playbook. No sounding board. No one to challenge you, guide you, or hold you through the chaos.

And it’s no wonder so many high performers feel stuck. They want help but don’t know who to ask. They worry that seeking support will be seen as weakness, when in truth, it’s the strongest thing you can do.
That’s why the people I work with trust me — because I don’t just know what the journey looks like, I’ve walked it.
( 06 )

Let’s Talk

Let’s build your breakthrough
I coach privately in Central London at 67 Pall Mall and online with clients across the world.
If you’re ready to reinvent, rebuild, or simply find what’s next, let’s begin the conversation.
Kasia Siwosz:
  • ·  Former WTA Professional Tennis Player
  • ·  UC Berkeley Graduate
  • ·  Ex–Investment Banker
  • ·  Entrepreneur
  • ·  Venture Capitalist
  • ·  Life & Career Coach for the Top 1%
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