Dec 29, 2022 · 22m · y-combinator
How to Get Your First Customers | Startup School · Y Combinator
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gold bands on the timeline = statements, start to end. Hover to read, click to jump. CC turns on captions
In this Y Combinator Startup School lecture, Group Partner Gustaf Alströmer explains how early-stage founders can successfully acquire their first customers through direct, founder-led sales and systematic outbound outreach. He provides practical frameworks for building sales funnels, targeting early adopters, writing effective emails, and charging for products from day one.
How this conversation actually went
Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. How this is scored →
The partners as informed peer 0.0 Guest teaching 0.0 Guest disagreement 0.0 The partners pushing back 0.0
speaking balance: gold is the partners, purple is the guest (3 minute bins)
Sharpest disagreement ▶ 1:00 Rejecting the myth of automatic growth
Alströmer firmly rejects the conventional founder belief that building a good product in isolation will organically generate sales without manual outreach.
Hardest push from the partners ▶ 8:37 Moderator transitionAs a solo presentation, there is no pushback; the moderator only interjects with neutral transition markers.
Biggest teaching moment ▶ 13:50 Educating on B2B pricing structureAlströmer instructs founders that offering free trials in B2B is a mistake and explains why paid pilots with money-back guarantees qualify real demand.
The partners hold their own ▶ 19:50 Moderator wrap-up cueThere is no host pushback or counter-demonstration of expertise in this presentation format.
the scores for every segment, with the reasoning behind each
| Chapter | Topic | The partners as informed peer | Guest teaching | Guest disagreement | The partners pushing back | Why |
|---|---|---|---|---|---|---|
| Title Sequence: How to Get Your First Customers | 0 | 0 | 0 | 0 | Gustaf Alströmer introduces the Startup School lecture on acquiring first customers and doing things that do not scale. This is a solo educational presentation with no host interaction. | |
| Understanding the Startup Curve | 0 | 0 | 0 | 0 | Alströmer explains the startup curve, the trough of sorrow, and why founders must personally drive sales. The format remains a solo monologue. | |
| Case Study: Brex's Early Customer Acquisition | 0 | 0 | 0 | 0 | Alströmer walks through Brex's early cold email strategy in YC and breaks down the anatomy of an effective sales email. The segment concludes without host dialogue. | |
| The Sales Funnel & Outreach Tracking | 0 | 0 | 0 | 0 | The moderator briefly signals a transition, and Alströmer breaks down the sales funnel steps, qualifying leads, and prioritizing early adopters. No pushback or substantive host dialogue occurs. | |
| Charging Your First Customers | 0 | 0 | 0 | 0 | Alströmer argues against unpaid B2B trials, recommending money-back guarantees and tracking funnel conversion numbers backwards. The lecture is uninterrupted. | |
| Common Sales Mistakes & Recommended Tools | 0 | 0 | 0 | 0 | Alströmer reviews recommended CRM tools, resources, and contrasts early unscalable outreach with mature growth channels before concluding the talk. |
Statements from this episode (16)
Alströmer: 'Do Things That Don't Scale' Is the Most Important Startup Essay
“The most important essay ever written about the very early stage of startups is Do Things That Don't Scale by Paul Graham.”
Alströmer: Founders must not hire salespeople until selling the product themselves
“As a result, you should not hire a sales team until you know how to do sales yourself. Only then will you know what good looks like.”
Alströmer: Sales is probably the easiest role for startup founders to learn
“If you don't know how to sell, don't worry. You can learn. It's probably the easiest job to learn in startup.”
Alströmer: Brex recruited its first 10 customers from its YC batch
“When Brex was in Wicomner in winter of 2017, they recruited the first 10 customers directly from the YC batch.”
Alströmer: Brex co-founder Henrique Dubugras onboarded every early customer personally
“Customers just had a virtual credit card and Enrique from Brex actively onboarded every one of the customers himself.”
Alströmer: Sales emails should be at most six to eight sentences
“It should be short, max six to eight sentences.”
Alströmer: Founders should write plain text sales emails without HTML
“Four, do not use any HTML formatting. Write your email in plain text only, like you would written it to a friend.”
Alströmer: Outsourcing prospecting works only if founders know exactly what to outsource
“And I've seen a lot of YC founders that when they are getting to a thousand of these, they're like, oh, this is a very simple task. I can actually outsource this. And I think that can work if you know exactly what it is you're outsourcing.”
Alströmer: Startups are the easiest initial customer segment for software companies
“Selling to startups is the easiest category. And I've learned this on and on again. With YC companies, specifically the ones that sell software, it just turns out that bigger companies have more bureaucracy, more processes. They even have a specific department…”
Alströmer: High outbound volume is necessary because most people are not early adopters
“Most people are not early adopters, and I keep saying this to the YC companies I work with all the time. The reason you have to sell, send hundreds of emails is not that Most of those people get really upset and be like, I can't believe you emailed me, like, I…”
Alströmer: B2B Startups Should Offer Money-Back Guarantees Over Free Trials
“But you should not offer free trials and B to B sales. Go for a money back guarantee and go for the ability to opt out instead.”
Alströmer: Startups Should Raise Prices Until Customers Complain But Still Pay
“Increasing your price until your customers are complaining, but still paying is the right way to go.”
Alströmer: Amplitude, Stripe, and Front Started With Founder-Led Outbound Emails
“Some of the early ones like Amplitude, Stripe, Front, they were doing up on sales emails, just like the one we described to get started. Those founders were doing those sales emails as they get started.”
Alströmer: Founders fail at sales by not working backwards from goals
“The biggest mistakes that most founders do is they don't do enough outreach because they don't work backwards from the goal.”
Alströmer: Airbnb's referral program didn't bring in its first 2,000 customers
“They didn't start by running Google SEM or Google SEO. The referral program did not bring in the first 2000 customers. They did things that didn't scale, and they look different than what they do at scale.”
Alströmer: Startups cannot easily learn from users acquired via Google and Facebook
“You can't learn from users if the first thousand or first hundred customers are brought in through Google and Facebook. Those people are not the kind of people that you can easily get on a 30 minute phone call with.”