# Jack Dorsey

> Jack Dorsey co-founded Block, Inc. (Cash App / Square) and Twitter (now X).

Source: https://www.neobank.wiki/jack-dorsey
Last updated: 2026-08-12
Categories: Financial technology, Fintech founders, People in fintech, Neobank founders

**Jack Dorsey** is co-founder of Block (parent of Cash App) and co-founder of Twitter/X of [Cash App](/cash-app). Through Block he positioned Cash App as a leading U.S. consumer finance app alongside seller payments (Square).[^fn1]

## Career

Dorsey co-founded Twitter (now [X](/x)) with Noah Glass, Biz Stone and Evan Williams, and co-founded Square/Block with Jim McKelvey. Cash App grew from Square Cash into P2P payments, debit card, investing and Bitcoin products delivered with [partner banks](/partner-bank). In 2022 [Elon Musk](/elon-musk) acquired Twitter and rebranded it to X.

## Cash App

Jack Dorsey is principally associated with [Cash App](/cash-app). See that article for products, licensing and market context.

## External links

- [Cash App official website](https://cash.app/)
- [X (@jack)](https://x.com/jack)

## Infobox

- **Occupation**: Fintech founder
- **Known for**: Block / Cash App; Twitter co-founder
- **Company**: [Cash App](/cash-app)
- **Founded company**: 2009 (Square); 2013 (Cash App)
- **Associated HQ**: United States
- **X**: @jack

## Frequently asked questions

### What is Jack Dorsey?

Jack Dorsey co-founded Block, Inc.

### What is the official Jack Dorsey website?

The official website for Jack Dorsey is https://x.com/jack.


## References

[^fn1]: Jack Dorsey is a founder of Cash App, covered on neobank.wiki. - https://cash.app/