US citizens can participate in Qchain ICO  .This project from United States, California, Irvine

Accountability
- US company based in California
- Has done due diligence in legal and regulatory compliance
- Followed through on their word to ICO after releasing a demo and perform legal due diligence
- Escrow for their ICO funds, with 2 third-party accounts on both their NEM and Ethereum wallets


Qchain – EQC & XQC ICO For Blockchain Marketing Ad Analytics
https://bitcoinexchangeguide.com/qchain/

Qchain also appears on Nasdaq's website once more:
http://www.nasdaq.com/article/qchains-forward-advancement-amid-the-changing-world-of-icos-cm873184

New article in the Bitcoinmagazine
https://bitcoinmagazine.com/articles/qchains-forward-advancement-amid-changing-world-icos/

The details of the crowdsale
https://medium.com/the-qchain-blog/the-qchain-token-sale-begins-now-e08259c98101

Telegram: https://t.me/qchainplatform
Twitter: https://twitter.com/QchainPlatform
Reddit: https://qchain.reddit.com
Medium: https://medium.com/the-qchain-blog
Facebook: https://www.facebook.com/QchainPlatform/
Bitcointalk: https://bitcointalk.org/index.php?topic=2264106
Bitcointalk Bounty: https://bitcointalk.org/index.php?topic=2229065.0

English whitepaper: https://qchain.co/files/Qchain_whitepaper.pdf