“Understanding your customers comes before building a great product.”
Ted Kim, CEO of BeSir. Founder Sprint 1
$1M
ARR
5+
enterprise contracts
5mo
to recurring revenue
Build in Seoul.Sell in San Francisco.
N Seoul Tower, Namsan, Seoul37°33′ N, 126°59′ E
Outsome is a hands-on accelerator in Seoul and San Francisco. Four weeks with Peter and YC founders to find customers who pay, then two weeks in Silicon Valley to meet the people who decide.
Founders met investors from
How it works
From a guessto a payingcustomer.
I
Founder Sprint
Twice a week in person with Peter. Pick your ICP, run real customer interviews, set your price and close a first deal.
II
US Track
Live with other founders in the Bay Area. Meet YC founders, operators and early-stage VCs in small rooms, not on a stage.
III
Alumni
Monthly group office hours with Peter, VC intros when you are ready, and a founder network that keeps compounding.
Program
Built for founderswho want proof.
Every team leaves with a record like this one. Pick a part of the program on the right and the line it moved lights up.
Founder recordBeSir (Serverkit) / FS1 / May 2025
Numbers as stated by the founder in our alumni interview.Read it
01 / 04
ICP and positioning
Who buys, who pays and why now, written down in week one.
How we help ORBT, Joshua Kim: from B2C to B2BCustomer interviews
Scripts, targets and weekly counts. You run them, we review them.
How we help NECTON, Hyunji Park: interviews that redefined the modelPricing
US-style packaging and pricing benchmarked against YC companies.
How we help in10s Lab, Jessy Yoon: about 15x the price per customerEnterprise sales
From procurement to contract, coached live on your real deals.
How we help BeSir, Ted Kim: POSCO DX, Hyundai Mobis, KMGIR deck
A 10-slide deck in the Silicon Valley format, reviewed slide by slide.
How we help ORBT: pre-seed led by Mashup VenturesYC and VC network
YC founders as mentors and warm intros to US and Korean investors.
How we help TrySmooth, FS7: from Seoul to a Day 1 in the USWho it is for
Where guessingis expensive.
A cable car, San Francisco37°48′ N, 122°24′ W
Outsome works best for Korean founders who already build fast and now need the first customers, the first US meetings and the first round to follow.
B2B SaaS and AIFind the buyer, the budget and the first enterprise contract.
Healthcare and bioUS Healthcare Track with DHP: clinics, payers and clinical partners.
Developer toolsTurn users into teams that pay, then into a US go-to-market.
Consumer to B2BWhen the app works but the money does not, we help you pivot to who pays.
Not a fit if you want a demo day stage, someone to sell for you, or advice without doing the customer calls yourself.
Results
Numbers we updateevery batch.
42
Startupscompleted an Outsome program
54%
Made new revenuefrom a model built in Founder Sprint
6
Raised after the programincluding follow-on rounds
11
Cohortsacross Seoul and Silicon Valley
Live from our records, as of 2026-10-08. How we count
Gwanghwamun Gate, Seoul37°35′ N, 126°59′ E
Founders
01
02
03
From our notes
What we write every week.
Apply
A short selection,built for doers.
What we look for
- A team that learns fast and turns ideas into solutions
- Coachable: you take feedback and act on it quickly
- You test hypotheses constantly and fail forward
- You are serious about going global now
ISubmit an applicationBasic information about your startup, product and goals for the program.
IIZoom diagnostic interview30 to 40 minutes on your product, PMF readiness and US market potential.
IIIIn-person interviewTop teams meet us in Gangnam before the final decision, announced that week.
Founder Sprint runs four weeks in Seoul, in person on Mondays and Thursdays in Gangnam. All co-founders attend.
FAQ
Questions foundersactually ask.
Do you sell for us?
No. You run the customer calls and close the deals. We set the targets with you, review every call and coach you live on real deals, so the skill stays in your team.
Is the US Track just a Silicon Valley trip?
No. Most of the two weeks is spent building, refining your messaging and talking to real customers, YC founders and investors in small working sessions.
We do not have product-market fit yet. Can we join?
Yes, as long as you are already building and can talk to customers every week. What matters is execution speed, not traction.
Is four weeks enough?
Four weeks is the sprint. After it you join the alumni group with monthly group office hours, VC intros when you are ready and the US Track.
Will we meet investors?
Yes, but it is not a demo day. You get targeted intros and small investor sessions when your numbers are ready for them.
Find out if you are ready for the US.
A 15 minute diagnostic call with our team. If Outsome is not the right fit, we will tell you and point you somewhere better.