Argyle Security Inc (fka ARGL)

[otcbargains]

There are some good third party articles out too.

http://www.securitysystemsnews.com/article/isi-security-wants-be-next-super-regional

http://www.prnewswire.com/news-releases/isi-security-group-announces-unified-brand-223535501.html

http://www.prnewswire.com/news-releases/ray-gilley-of-isi-security-group-publishes-position-paper-on-trends-in-the-chemical-security-sector-223899361.html