This link provides a list of Weather Modification companies currently operating in the US and much more. It also contains a list of US Government agencies currently engaging in weather Modification.
In addition, it contains a list of US Patents that apply directly to weather modification and those in active use today. Plus, much more.
Weather modification COMPANIES in operation today inside the USA:
http://www.weathermodification.com
HAARP patent:
http://www.scribd.com/doc/26517997/Us-Patent-Harrp-5041834#fullscreen:on
http://www.freepatentsonline.com/4686605.pdf
