Klein and Hoffman, Inc.
Offers wastewater management, structural engineering and facade restoration.
http://www.kleinandhoffman.com/

Klein and Hoffman
Structural engineers provide architectural engineering, facade and parking garage restoration.
http://www.kleinandhoffman.com/

Openlands Project, Land Protection and Urban Greening
Dedicated to preserving and enhancing public open space in northeastern Illinois.
http://www.openlands.org/

Greening Australia
Australia's largest practical environment organisation
http://www.greeningaustralia.org.au/

David Greening Web Design
Offers web design, hosting, database and e-commerce.
http://www.davidgreening.com

Greening the Heartland
Focuses on innovation and sustainability of buildings and cities and markets these practices in the Heartland region of the United States.
http://www.greeningtheheartland.org

Scalp
Scalp France : paint remover and protective products manufacturer, specialized in chemicals products for construction and industrial businesses. Since 50 years, SCALP offers a comprehensive product line for façades and surfaces treatment.
http://www.scalp-france.com

Greening Inc.
Specialized brake test equipment manufacturer and testing laboratory. Providing transportation manufacturers and their suppliers improved and safer products to compete in today's global market.
http://www.greeninginc.com

Thermosave Connection System
Manufactures and sells flexible connectors and facade dowels of basalt plastic for thermal and moisture protection of buildings, which are remarkable for low-heat conductivity and stability towards chemical actions.
http://www.thermosave.net/

Greening, Dan R.
CEO BigTribe. Entrepreneur and researcher. Personalization, collaborative filtering, computer-supported cooperative work, ubiquitous computing, simulated annealing, distributed computing, social psychology.
http://dan.greening.name