FI 50

What it does

Founder Institute Alumni have raised over $1.5 billion in funding and are building businesses that matter across 6 continents. These are the companies that grew the quickest over the last year.

A curated list of the fastest growing startups in 2026 from the Founder Institute global portfolio.

A curated selection of Alumni that demonstrated exceptional growth in 2025-2026. Esusu reports on-time rent payments to credit bureaus, helping renters build credit and financial access. Raised a $50M Series C at a $1.2B valuation in December 2025, creating $46.9B in credit tradelines for renters. Orange Charger simplifies EV charging installation in multi-unit residential buildings. Raised a $6.5M seed round in 2024 and secured a strategic investment from Southwire, North America's leading wire and cable company. Endiatx develops swallowable robotic capsules called PillBot for minimally invasive GI tract imaging. Raised a $12M Series A in January 2025 with FDA clearance anticipated and…from fi.co

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  Founder Institute Report2019 · 10.fi.co · ▲150

  Insights from 15K+ founders & 4000+ alumni across 180 cities

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  who raised? lead list vault2023 · ▲139

  Close deals with 4,324 decision makers of VC-backed startups

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  who raised?2022 · whoraised.io · ▲194

  Find clients who just raised $1M-$25M in funding

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  Founder University2023 · ▲69

  12-Week Pre-Accelerator: MVP to $25k Investment

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  VC Sandbox2023 · vcsandbox.co · ▲209

  Raise 10X faster with the ultimate Notion VC guide

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  Breakout List2014 · breakoutlist.com · ▲183

  A list of the fastest growing startups

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  SimCity, but with Permits▲911

  A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.

  Life & fun · 2d ago · permit.petercai.com

• IV
  I've been paying for a rural Tanzanian's education for 10 years▲778

  Life & fun · 14d ago · tanzaniaeducationproject.org

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  Bigwords.page – Turn any screen into a sign. The URL is the app▲728

  Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.

  Life & fun · 15d ago · bigwords.page

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  Guitoro, a virtual guitar you strum with your keyboard▲573

  Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.

  Life & fun · 9d ago · guitoro.com

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  See *almost* any carriers phone settings▲432

  Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.

  Life & fun · 13d ago · carrierexplode.com

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  The whole Solar System and every tracked satellite, live in the browser▲407

  Life & fun · 23d ago · space.bl2.net

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  Magic Sidebar by BlackMagic.so▲1,084

  Powerful enhanced experience for Twitter

  Life & fun · 2021 · blackmagic.so

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  I made a modern web UI for Wikipedia▲979

  A beautiful, clean, modern web UI for Wikipedia. Enhance your Wikipedia experience with a redesigned look, new features and customization.

  Life & fun · 2021 · modernwiki.app

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  thirdweb▲897

  Build web3 apps and games, easily

  Dev tools · 2021 · thirdweb.com

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  Emoji to Scale▲713

  Your favorite emojis. To scale (more or less).

  Life & fun · 2021 · javier.xyz

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  Alfread▲641

  Actually read articles saved for later

  Work · 2021

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  BitsForDigits▲624

  A partial buyout marketplace free for bootstrapped founders

  Commerce · 2021 · flippa.com