U.S Green Building Council and the Leadership in Energy and Environmental Design (LEED) 

http://www.usgbc.org/

Guidelines and regulations required in order to certify environmental leadership for your own certifications or for your building. Greenspace, as a LEED certified member, always provides LEED AP certified professionals in order to ensure that your facility is the most energy-efficient and environmentally friendly as possible.

Energy Star 

http://www.energystar.gov/

A joint program of the U.S. Environmental Protection Agency (EPA) and the U.S. Department of Energy helping us all save money and protect the environment through energy efficient products and practices. Greenspace, as an Energy Star partner, always recommends Energy Star appliances and products in order to ensure the best possible energy-efficiency for its customers.

U.S. Environmental Protection Agency (EPA)

http://www.epa.gov/

Leads the nation's environmental science, research, education and assessment efforts. The mission of the Environmental Protection Agency is to protect human health and the environment. Greenspace uses EPA as a resource to find reports and statistics which we use to properly choose the products and services that we offer to our customers.

Environmental Defense Fund Paper Calculator

http://www.edf.org/papercalculator/

Want to calculate how many trees you save by purchasing recycled content paper products? Greenspace uses this resource to calculate a lot of its findings and recommendations based on the numbers that this calculator uses. Know that both the EPA and Greenspace always recommends buying at least 30% recycled content paper in order to make a difference for the environment.