# Duolingo

> Mobile-first language learning platform — gamified lessons at consumer internet scale.

## Why it is interesting

Pittsburgh’s clearest public consumer-tech proof: CMU-founded product company that IPO’d on Nasdaq as DUOL (Jul 2021) while keeping principal executive offices on Penn Avenue.

## Profile

- **Latest funding:** Not publicly disclosed
- **Latest known valuation:** Not publicly disclosed
- **Total disclosed equity funding:** Not publicly disclosed
- **Stage:** public
- **Status:** public
- **Industries:** edtech, consumer, ai-ml
- **Coverage:** full
- **Last updated:** 2026-07-26

## Key facts

- Public (Jul 28, 2021): Nasdaq DUOL IPO (company / CNBC coverage)
- HQ: 5900 Penn Avenue, Pittsburgh, PA (SEC filings)
- Founders: Luis von Ahn and Severin Hacker (2011)
- Product: freemium mobile language learning at consumer scale

## Funding history

- IPO · ~$521M gross (reported) · July 2021
  Source: https://www.cnbc.com/2021/07/28/language-learning-app-duolingo-pops-35percent-in-public-debut-on-the-nasdaq.html

## Related articles

- https://venturecapitaltracker.com/pittsburgh-startups-and-vc-firms-2026

**By:** [Venture Capital Tracker](https://venturecapitaltracker.com/editorial-policy)
**Last updated:** July 26, 2026

**Editorial note:** AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.

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Source: https://venturecapitaltracker.com/startup/duolingo