Helping founders build businesses that don't rely on them for every decision.

I work alongside founders, investment principals and family offices in venture capital, investment funds and hospitality. I take work off their plate, keep execution moving and build the operational structure that lets the business run without everything coming back to them.

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Margarida Castro
Margarida Castro
10+ years
across venture capital, investment funds and luxury hospitality
$35M+
operating budgets managed
5 jurisdictions
Cayman, BVI, Portugal, Malta, US
01 / The problem

What changes as a business grows

More people. More decisions. Priorities that compete for the same week. Visibility drops, and the important things still end up back on your desk, because you're the only one who sees the whole picture.

Most businesses don't struggle because they lack ideas. They struggle because no one has the time to own the execution. What founders need then isn't another dashboard or meeting. It's capacity: someone trusted enough to own the work that shouldn't need them.

02 / The model

How I help

Founder Office isn't a job title. Some founders need someone to own the day-to-day. Others need someone to drive strategic initiatives. Others need someone they trust to keep the business moving while they lead it.

The role changes. The objective doesn't.

Level 01 Take work off your plate

I absorb the operational noise so your time stays with the decisions only you can make: capital allocation, LP relationships, guest experience, whatever sits at the center of your business.

  • Decisions made within agreed guardrails — you're not looped in unless it matters
  • Representing your priorities when you're not in the room
  • Calendar, inbox, travel and meeting prep, handled end-to-end so none of it reaches your desk
Level 02 Own execution

When something matters but can't have your week, I run it: the plan, the people, the follow-through, until it's done.

  • Strategic initiatives, planning to delivery
  • Cross-functional project management
  • Leadership meetings and accountability
  • Reporting and operational planning
Level 03 Build the business

Growth usually doesn't break businesses. Weak systems do. I build the quiet structure that lets the business run predictably as it scales: governance, reporting, multi-jurisdiction operations.

  • Process design and SOPs
  • Fundraising support and due diligence
  • Multi-jurisdiction entity governance and LP reporting
  • Hiring and people operations
03 / The person

Working together

Over the past decade I've worked alongside founders, executives and investment managers across venture capital, investment funds and luxury hospitality, helping businesses strengthen operations, governance and execution.

You hand something over once. I take ownership, use judgement, and come back with it done, or with a decision that needs only you. You'll know what's moving, what's stuck and what's next, without having to ask.

OwnershipJudgementTrustClarityReliability
04 / From clients
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05 / Next step

If parts of this sounded familiar, we should talk.

A conversation, not a pitch: twenty minutes on where your time is going, and whether my Founder Office would change that.

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