The commercial cleaning services is a large 100+ billion dollar a year business. Below are some resources regarding various associations and key suppliers within the commercial cleaning industry.

Green Cleaning 
GreenBlue is a nonprofit that equips business with the science and resources to make products more sustainable. They provide an online database of cleaning product ingredients called CleanGredients, as well as verified information about the environmental and human health attributes of listed ingredients. 
The Green Clean Institute focuses on educating on how to clean green. Their motto is, "Changing the Notion about Cleaning for Health." 
Green Seal has been actively identifying and promoting sustainability in the marketplace, and helping organizations be greener in a real and effective way since 1989.

Product Providers 
This is a wholly owned Irish Company which provides an innovative new door handle sanitizing system. 
Cascades’ North River 100% recycled towel and tissue products are Certified Green™, providing complete assurance that they are some of the most environmentally responsible products available. 
Kaivac develops science-based hygienic cleaning systems that protect the health of building occupants. 

The magazine provides information for today's facility maintenance professional. Each moth they take a whole-building approach to cover the industry. 
The Worldwide Cleaning Industry Association provides access to the latest industry news, articles, trade show information and more. 
A leading authority on school environmental health offers a quick guide to cleaning in school environments 
CIRI stands for the Cleaning Industry Research Institute. They emphasize the need for high performance cleaning for health hygiene and appearance. 
The International Custodial Advisors Network, Inc. (ICAN) is a non-profit association comprised of industry consultants and other educators with a wide range of expertise in building management, indoor environmental quality and service disciplines