They are already starting to go mainstream,

Mortage Industry (Harmony)
https://bitcoinmagazine.com/articles/factom-harmony-takes-mortgage-industry/

China Wanxiang:
https://bitcoinmagazine.com/articles/sandbox-public-blockchain-projects-launched-china-wanxiang-group/

Kaula Japan (social security):
https://kaula.jp/2017/06/13/kaula-atrris-factom/
https://steemit.com/crypto-news/@ryneraic/factom-blockchain-to-be-implemented-into-japanese-social-security-system

Department of homeland security (Factom Blockchain Plugin for Tamper Proof IOT Devices):
https://custom.cvent.com/D71B7D8189BD45EA9E6B4842B3ECD6AE/files/efa1af753a294a648b96ac8cbfabb347.pdf
https://www.ethnews.com/factom-receives-second-dhs-grant-for-blockchain-iot-project

I could name a few more but i let u do the digging, Factom's reddit page has alot of info!
https://www.reddit.com/r/factom/


This is a long term investment buy and hodl!