O1SFU.S. market entry
for international founders
for international founders
B4SF editorial profile · Field note 001
Evidence before expansion.— O1SF
O1SF turns U.S. market-entry assumptions into testable assets, relevant conversations, and a plan that can point back to what the market actually did.
FIELD TEST / 01
- Prepare
- 2 weeks online
- Execute
- 1 week in SF
- Cohort
- Up to 9 startups
The premise
Confidence is not market evidence.
A polished story can still rest on fragile assumptions. O1SF makes the uncertain parts observable—then uses feedback to decide what to keep, change, or stop.
The sprint · 003—005
Prepare remotely.
Test in the room.
Each week has one job. The sequence moves from defining what must be learned to putting customer-facing work into a real market context.
- 01Online
Frame the hypothesis
Clarify the U.S. customer, buying context, proof, and the assumptions that could change the entry decision.
- 02Online
Prepare the test
Build positioning, outreach, interview prompts, target criteria, and an evidence log for focused conversations.
- 03San Francisco
Meet the market
Run relevant interactions, record what happened, revise the plan, and define the next 3, 6, and 12 months.
The evidence loop · 006
Every assumption must meet the market.
The loop is deliberately lightweight: build only enough to create a useful interaction, document the signal, and improve the next move.
- 01↗
Assumption
Name the claim that matters.
- 02↗
Asset
Make it concrete enough to test.
- 03↗
Interaction
Put it in a relevant context.
- 04↗
Evidence
Separate observation from interpretation.
- 05↗
Revision
Change one decision at a time.
- 06↗
Action
Commit to the next measurable move.
A costly next step, a repeated buying pattern, or a concrete follow-up carries more weight than general encouragement.
Read the methodologyPublished program facts · 007
Small cohort.
Explicit terms.
O1SF is presented as a compact working program with 0% equity—not a promise of commercial outcomes.
- weeks in one focused sprint
- 3
- online weeks + SF week
- 2 + 1
- startups in a cohort
- ≤ 9
- equity taken by O1SF
- 0%
Public program fee$4,999One primary founder included · additional founder $2,500
Source: O1SF pricing and program pages · checked August 10, 2026. Final obligations depend on executed program documents.
The working set · 008
Leave with decisions you can trace.
The stated outcome is not attendance or a folder of generic templates. It is a working set of assets and next steps shaped by the evidence each company collects.
- 01Tested positioning and messaging
- 02Customer, partner, and investor target lists
- 03Customer-discovery and outreach assets
- 04A U.S. go-to-market plan and North Star metric
- 05A roadmap for the next 3, 6, and 12 months
- 06An execution playbook grounded in recorded feedback
The next test · 009
Take the plan into the market.
Review the public program, methodology, pricing, and founder resources before deciding whether the format fits your U.S. market-entry question.
Paying customers, revenue, meetings, introductions, investment, visas, and other market outcomes are not guaranteed. The target of 10–50 relevant interactions during the San Francisco week may include ecosystem events and useful professional conversations. Cohort dates and an official application channel were not published when this profile was checked.