Mark Inger

🎂 Built a 500‑customer B2B SaaS before I turned 18 – AMA

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At 15 I trained my first machine‑learning model and landed an internship at a U.S. company.
At 16 I launched my first startup… and promptly ran it into the ground.
I learned more from that failure.

At 17 I launched Pleep, an AI sales‑rep that lets any business owner integrate AI into their sales workflow in under five minutes. Four months later I quit my job to work on it full‑time.

Why bother? I kept asking myself: “Why isn’t there an AI sales monopoly yet?” My take: because most competitors deliver “AI consultants” that talk like robots and kill revenue.

We focused on building a real rep that:

  • Doesn’t ask you to prompt or pick an LLM – you just tell us about your business and we do the rest.

  • Talks like your top salesperson, not a bot.

  • Books meetings and pushes data back into your CRM.

Fast‑forward a year: Pleep has 500+ paying B2B customers, hit ~$20k MRR, raised a $100k pre‑seed round and – as of my 18th birthday – we’ve opened a C‑corp and started expanding globally.

Why share this? Because there are dozens of young builders on Product Hunt who think they need more credentials before shipping. You don’t.

Ship, fail, iterate, learn. Then share your lessons.

I’d love to hear from other makers:

What was your first product that actually took off? How old were you?

If you built something as a student or school‑kid, how did you balance class, work and shipping?

Have you used AI in your sales funnel yet? What’s your biggest challenge?

I’m here to answer questions about Pleep, building AI products, raising early money while under 18, or anything else.

And if you’re a founder looking to boost your sales, feel free to try our 7‑question onboarding (takes ~5 mins) at pleep.app.

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Igor Lysenko

I really admire people who, at such a young age, start creating products and understanding business. I believe this is a valuable skill for life. Keep up the great work!

Mark Inger

@ixord Thank you!

Lisa Ramos

I'm sure you were fed up with the regular school system.

Aliaksei Kakhanouski

Curious — how did you land your very first paying customers for Pleep? Was it through cold outreach, personal network, or Product Hunt traffic?”