Oss · Buenos Aires

A few ordinary people are driven to build extraordinary companies.

They need all the help they can get. Oss works with a few of them, for years at a time, on the decisions that shape their companies.

The line

Eight companies across Latin America.

1
01 / 08
From the record
Cashea on the Nasdaq tower in Times Square
Nasdaq tower, Times Square · 2026
US$100MCashea · two rounds

Cashea announced its round on the Nasdaq tower in Times Square: US$100M across two rounds, the largest capital raise in Venezuela. Oss ran the process from repositioning to close, and stayed on to build the investor relations practice.

Read the case study
Principles

How Oss works.

  1. One or two companies at a time.The work takes full attention, so the list stays short.
  2. For years at a time.An engagement often starts with a raise and continues through the board meetings, the investor updates and the next round.
  3. The person who writes the narrative is the person in the room.Marcial writes the first draft and sits in the final meeting.
  4. Oss answers to the founder.With no other interest in the outcome, Oss can say what people inside the company cannot.
  5. When a bank is the right answer, Oss says so.Some problems need an investment bank, a lawyer or more time. Founders hear that early.
Where Oss draws from

The people who shaped how Oss works come from craft.

Jiro OnoThe same thing, better, for sixty years.
Hayao MiyazakiMore than a year of work on four seconds of a crowd scene.
Rick RubinHe plays nothing. He hears everything.
Charlie Munger“Take a simple idea and take it seriously.”
Doug LeoneHelping founders do what they could not do alone.
Founder

Marcial
Gonzalez Fraga.

Operator at Mercado Crédito. Investor at Latitud. More than 3,000 founder interviews.

“I spend every hour trying to get 1% better at the support I can give a founder. That is the whole job.”

The name comes from martial arts. Oss, written , means perseverance under pressure, respect for the discipline and complete commitment to the training. A student says it to acknowledge a lesson and to promise to carry it forward. That is the operating philosophy here.

Correspondence

New engagements are rare, and begin with an introduction from a founder Oss already works with.

marcial@foundeross.com