About SISU

We’re a legal strategy powerhouse built for founders.

Meaning

"SISU"?

👉🏼 Finnish word with no direct translation. It means inner strength, grit, and the quiet determination to keep going, especially when things get hard.

👉🏼It’s the spirit every founder needs, and the kind of legal partner we strive to be.

Legal partners

OUR MISSION

Make legal your growth partner

APARTADO WHAT WHY HOW

Our team

Our team

Meet the team behind SISU

We’re a legal strategy powerhouse built for founders.

Eugenia Di Marco

Founder & Legal Strategist

Eugenia helps founders build and grow startups with smart legal strategy, from formation to fundraising to global expansion. Her work is all about structure, clarity, and peace of mind (no jargon, no stress).

She’s a former advisor at UC Berkeley Law’s Startup Hub and has been recognized as a Digital Transformation Leader by MIT and an Emerging Leader by the London School of Economics.

Eugenia brings sharp legal thinking with a startup mindset. She makes the complex simple, and helps founders stay one step ahead.

Valeria brings a solid background in corporate structure, IP strategy, and compliance, with a mission to help founders grow without the stress of legal uncertainty.

She’s internationally trained, sharp on the details, and deeply practical. Whether you're building your cap table, organizing your governance docs, or aligning with investors, Valeria helps translate complexity into clear, founder-first action.

At Sisu, she focuses on creating scalable legal frameworks that support long-term growth, without the jargon.

Eugenia and Valeria provide legal strategy and compliance support, but do not act as licensed attorneys or provide legal advice through Sisu unless explicitly stated in writing for the appropriate jurisdiction.
Eugenia and Valeria provide legal strategy and compliance support, but do not act as licensed attorneys or provide legal advice through Sisu unless explicitly stated in writing for the appropriate jurisdiction.

Comparison

Comparison

What Sets SISU Apart

THEM

One-off service

One-off service

Cookie-cutter advice

Cookie-cutter advice

Confusing pricing

Confusing pricing

Slow by design

Slow by design

Reactive legal

Reactive legal

V/S

Logo

Long-term partner

Long-term partner

Tailored strategy

Tailored strategy

Flat-fee clarity

Flat-fee clarity

Fast by principle

Fast by principle

Proactive support

Proactive support

Newsletter

Get legal tips for your startup

Every month, essential legal insights and updates to help you grow securely

FAQs

FAQs

Frequently Asked Questions

How do your fees work?
What kind of support do you offer after we incorporate?
Do you work with venture-backed startups?
Do you only help with company formation?
Can you help clean up our legal mess if we started wrong?
Do you work with international startups?
How do your fees work?
What kind of support do you offer after we incorporate?
Do you work with venture-backed startups?
Do you only help with company formation?
Can you help clean up our legal mess if we started wrong?
Do you work with international startups?
Have Questions? We're Here to Help!

Reach out to our support team for any queries or assistance.

FAQs

FAQs

Frequently Asked Questions

How do your fees work?
What kind of support do you offer after we incorporate?
Do you work with venture-backed startups?
Do you only help with company formation?
Can you help clean up our legal mess if we started wrong?
Do you work with international startups?
How do your fees work?
What kind of support do you offer after we incorporate?
Do you work with venture-backed startups?
Do you only help with company formation?
Can you help clean up our legal mess if we started wrong?
Do you work with international startups?
Have Questions? We're Here to Help!

Reach out to our support team for any queries or assistance.

Newsletter

Get legal tips for your startup

Every month, essential legal insights and updates to help you grow securely

Comparison

Comparison

What Sets SISU Apart

THEM

One-off service

One-off service

Cookie-cutter advice

Cookie-cutter advice

Confusing pricing

Confusing pricing

Slow by design

Slow by design

Reactive legal

Reactive legal

V/S

Logo
Logo

Long-term partner

Long-term partner

Tailored strategy

Tailored strategy

Flat-fee clarity

Flat-fee clarity

Fast by principle

Fast by principle

Proactive support

Proactive support