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🌊 The 10 Fastest-Growing AI Startups

A data-driven review of who's gaining the most customers right now.

Ivan Landabaso's avatar
Ivan Landabaso
Feb 19, 2026
∙ Paid

👋 I’m Ivan. I study how top 1% startups raise and grow.


One of my favourite things to do is track early, underrated data sources that give us a glimpse into the future.

Imagine my delight when I found Ramp’s software vendor data.

They process billions in business expenses across 50,000+ companies on their corporate card and bill pay platform. That means we’re not looking at what founders claim or what VCs fund but at what finance teams actually approve (real PMF).

I enriched Ramp’s trending vendor list with funding data, revenue estimates, and investor intel to answer:

Which AI startups are actually winning customers (not just raising money)?

Today’s tl;dr:

  1. 📈 Who’s gaining customers fastest.

  2. 🔎 Their efficiency numbers are outstanding.

  3. 🌊 Three patterns the spend data reveals.

  4. 💰 Five VC funds keep showing up.

  5. 🔐 The breakout list + full dataset.

Let’s get into it:

📐 Quick note on methodology: Ramp’s “fastest growing software vendors” ranks companies by net-new customer additions on their platform. It skews US, mid-market, and tech-forward. I suspect it doesn’t measure total revenue or usage depth just adoption velocity. I enriched the top companies with funding, valuation, team size, and ARR data from public sources. Treat all numbers as directional.

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