Founder Sherpas
Sherpas for
Latin America's
most impactful founders
We partner with exceptional teams to strategize, prepare, and execute fundraising processes — Series A and beyond.
Oss means to be there, reliably, through every challenge.
Start a conversationWhat We Do
Four ways we help founders
Fundraising Oss
Series A, B, and beyond. We own the backend and operations — so you can focus on building.
End-to-end
Strategy
Narrative
Materials
Investor targeting
Process management
Negotiation support
Investor Relations
Board decks, updates, stakeholder communications.
Growth Strategy
Expansion playbooks, market entry, GTM refinement.
Special Situations
M&A support, repositioning, pre-IPO preparation.
How We Work
Depth over
breadth
We work with very few companies at a time — because transformation requires focus, not leverage. We're not brokers. We're not generic consultants. We're your execution arm.
Every engagement is completely tailored to what the founder needs to succeed.
Your success is our success
We structure engagements so our incentives are aligned with yours.
We treat your time as sacred
Every hour with investors is an hour away from customers. We make sure it counts.
We speak truth
Especially when it's uncomfortable. You'll always know where you stand.
We maximize your leverage
When you're negotiating with VCs, we make sure you're playing from strength.
The Journey
Building towards
what matters
My mission is to become the most impactful CEO sherpa I can be. Every decision I've made has been in service of that goal.
I hope I'm lucky enough to continue doing this for the next 50 years.
Mercado Libre — Intrapreneurship
Joined a 5-person team with the mission to build a new business unit focused on Consumer Credit. My first intrapreneurial role. Today, this BU represents 30%+ of Mercado Libre's EBITDA.
Croni — Co-Founder & COO
After exponential growth at MeLi, I stepped down to co-found Croni — building Toast for Latam. We gave up after 18 months. The lessons stayed.
Latitud — Principal & Head of Platform
Led 60 pre-seed rounds and supported a portfolio of 90+ companies. Learned what separates good founders from great ones.
Oss — Founder
Oss came to life with a singular focus: support the best founders with fundraising. Two years in, I've worked with 10+ startups across fundraising, strategy, and investor relations.
Contact
Let's talk
If you're building something exceptional and preparing for a defining moment, we'd like to hear from you.
marcial@foundeross.com