
The same thing, better, for sixty years
Jiro Ono
“Once you decide on your occupation, you must immerse yourself in your work.”
Fintech · Series A to Series C
End-to-end fundraising for founders who only accept outlier results. From the first line of the narrative to money in the bank.
Write to MarcialWhy Oss exists
Between Series A and Series C, you raise every 18 to 24 months. Each round is four to six months of narrative, targeting, meetings, diligence, and negotiation — on top of running the company. What you need at the table is expertise that is not conflicted.
Not your investors
They have a position in the outcome. Their price, their pro-rata, their signal to co-investors — these interests do not always align with yours.
Not an internal hire
You raise every two years. Building a full-time team for a part-time problem is expensive, slow, and gone the moment the round closes.
Not an investment bank
Banks optimize for the fee. Their process is built for their pipeline, not your outcome. They will not rewrite your narrative at 11pm before a partner meeting.
The edge
You have already built something exceptional. You know how to make decisions under pressure, how to attract talent, how to out-execute better-funded competitors. The raise is a different game — and being world-class at building does not automatically transfer. The difference between the round you deserve and the round you get is precision at every step of a process you run once every two years.

You write the deck with Claude. It is coherent, well-structured, covers the market. Every other deck in that partner's inbox looks the same.
An impeccable market story on how your company becomes a $10B business — written specifically for the fund reading it, pre-loading the IC's real objections before they surface.
You ask your existing investors for intros. They send you to the funds they know. You end up in processes with people who are not the right fit.
30 to 40 funds mapped for this round at this stage in this market — chosen because they have a pattern match, a live thesis, and the right partner in the room.
You run meetings one at a time. Each fund takes six weeks. By the time the last one comes back, momentum is dead and the first one has moved on.
A parallel process designed to create genuine competitive tension. Every conversation is timed. Every fund knows the room is not empty.
You get a term sheet. You are relieved. You take it. You find out two years later what you signed.
Multiple term sheets compared. The right lead selected on criteria beyond valuation. Clauses removed. Syndicate composed to strengthen the next round, not just close this one.
The advisor collects the success fee and disappears. You are alone with a new cap table you do not yet know how to manage.
Board materials, investor updates, and the key connections for the next raise — reverse-engineered from where you are now. The engagement does not end at signing.
Selected engagements

Cashea
US$100M
Two rounds. From repositioning to close. The largest capital raise in Venezuela — not just in fintech.
Read case studyRemitee
US$20M
Series A at 2× valuation step-up, six months after Seed Extension.
Nubceo
4×
Oversubscribed Seed. Tier 1 investors. Valuation step-up.
inDrive
5×
Business diversification. M&A function built from zero across Latin America.

Where we draw from
The people who shaped how Oss thinks about the work do not come from banking. They come from the belief that doing one thing with complete dedication changes what is possible.

The same thing, better, for sixty years
“Once you decide on your occupation, you must immerse yourself in your work.”

The cost of getting it right
He spent over a year animating four seconds of a crowd scene. The audience never noticed. That was the point.

He plays nothing. He hears everything.
“I know what I like and what I don’t like.”

The second seat
“Take a simple idea and take it seriously.”

Helping founders do what they could not do alone
Fifty years in venture. Still the first call founders make when the stakes are highest.
Who you work with
Operator first. Investor second. Then something else entirely — because the gap between building a company and successfully raising capital for it turned out to be a full-time job that nobody was doing with full dedication.
I spent every hour trying to get 1% better at the support I can give a founder in a raise. That is the whole job.
The name of this company comes from martial arts. Oss — written 押忍 — means perseverance under pressure, respect for the discipline, and complete commitment to the training. It is what a student says to acknowledge the lesson and promise to carry it forward. That is the operating philosophy here.
No juniors. No handoffs. The person who writes the narrative is the person in the room.
Get in touch
A handful of new clients a year. Usually a CEO planning a raise in the next three to nine months. Two lines: the company, and what is in front of you.
marcial@foundeross.comI read everything. I answer each one myself. Most conversations do not become engagements. When a bank is the right answer, you will hear that too.