Boutique Financial Architecture

Financial architecture for high performers

The strategic framework that sits above your entire financial world — bringing clarity, structure and strategy to complex financial lives.

AthletesFoundersCreatorsEntrepreneurs
What we do

We connect every part of your financial world into one clear, strategic framework — where money comes from, where it goes, and which decisions matter most.

CUBE works with high performers whose finances have grown complex. Rather than acting as accountants, tax advisors or investment managers, we design the architecture that sits above them.

One coherent structure, one clear view — and someone thinking a few moves ahead of every decision.

How we work

Clear scope, senior judgement, no execution.

01

A structured system

A consistent method that turns complex inputs into clear, usable decisions.

02

Senior involvement

Defined boundaries and direct involvement — no delegation layers.

03

A monthly review loop

Decisions documented, revisited and updated as things change.

04

Clarity, not execution

Accounting, tax and investing stay with your specialists. We design the structure.

Who we
work with

Professional athletesFoundersCreatorsEntrepreneurs

A limited number of clients, mostly by referral.

About

Why CUBE exists.

Portrait of Claudia Taberner, founder of CUBE
Claudia Taberner
Founder · CUBE
BackgroundEconomics, Universitat de Barcelona · MSc Financial Management, UPF
ExperienceKPMG, Financial Services · Business Analyst, HP
NowManager to a professional tennis player · INSEAD (EBV)
FromFormer competition tennis player

No one was holding the whole picture.

I started where you're supposed to start. An Economics degree in Barcelona, a master's in Financial Management, two years at KPMG in financial services, then two more as a financial analyst at HP. I learned how big companies see money — in structures, in reporting, in decisions made years ahead of time.

But I didn't come from that world. I came from tennis. Before any of the spreadsheets, I was a competition player, and the court never really left me. So when the chance came to manage a professional tennis player, I took it.

An accountant, a bank, advisors — every one of them excellent at their own piece. But no one could answer the simple questions: where is everything right now, what does it look like in three years, and which decision this month matters most. The information existed. It just lived in ten different places and connected nowhere.

That gap is why CUBE exists. Accountants look backward and keep you compliant. Advisors and banks sell you products. None of it is the same as someone sitting above the whole thing, designing how it fits together. That seat was empty, so I built it.

Our mission

Clarity and confidence to protect your wealth and build lasting financial independence.

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