Ledgerline, a payments company
Founded and scaled a cross-border payments product from zero to profitability.
→ 0 to profitable in 3 years
Singapore0→1Go-to-marketOperating
Daniel Sato
Founder & operator
I start things and stay long enough to make them durable. Momentum is a system, not a mood.
I found and operate early companies, and advise founders through the zero-to-one stretch.
- Focus
- Fintech · Marketplaces · Team building
- Known for
- 0→1 · Go-to-market · Operating
- Location
- Singapore
- Status
- Building, and advising a few teams
01 / THESIS
The work
Two companies in, the lesson holds: the idea is the cheap part. What compounds is the operating system you build around it and the people you trust to run it.
02 / OUTCOMES
Selected outcomes
What the work has actually produced.
- $48M
Raised across two companies
- 0→profitable
Ledgerline, in three years
- Featured
Operator of the year shortlist
03 / PROOF
Proof of work
A sample of what I've built, described as case files.
Harbor, a B2B marketplace
Built the two-sided marketplace and the team that ran it through Series B.
→ Series B, 2024
Advisory
Hands-on go-to-market and operating support for a small portfolio of founders.
→ 8 founders
04 / RECORD
Operating record
The milestones, most recent first.
- 2024 - present
Advisory portfolio
Go-to-market and operating support for eight founders.
- 2021 - 2024
Harbor, a B2B marketplace
Built the two-sided marketplace and the team that ran it through Series B.
- 2017 - 2021
Ledgerline, a payments company
Founded and scaled cross-border payments from zero to profitability.
05 / ENGAGEMENTS
Ways to engage
How the work gets hired.
- EN-01
Founder advisory
Hands-on go-to-market and operating support through the zero-to-one stretch. A small portfolio, currently eight founders.
- EN-02
Operating engagements
Momentum is a system: building the operating cadence that keeps the loop between decision and learning fast.
06 / BRIEFING
Questions, answered
The short answers, on the record.
- Q.01What is Daniel building now?
- He operates early companies and advises founders through the zero-to-one stretch, with a focus on fintech and marketplaces.
- Q.02What has he founded?
- Ledgerline, a cross-border payments company scaled from zero to profitability in three years, and Harbor, a B2B marketplace built through Series B.
- Q.03Does he advise?
- Yes. Hands-on go-to-market and operating support for a small portfolio of eight founders.
07 / FIELD NOTES
Field notes
Momentum is a system
Teams do not lose because they run out of ideas. They lose because the loop between decision and learning gets slow.
08 / CONTACT
DSDaniel SatoSingapore
The rest is a conversation.
Dossier·shown with a fictional demo record
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