Air and Waste Management Association (A&WMA)
The Air & Waste Management Association (A&WMA) is a nonprofit, nonpartisan professional organization that enhances knowledge and expertise by providing a neutral forum for information exchange, professional development, networking opportunities, public education, and outreach to more than 8000 environmental professionals in 65 countries. A&WMA also promotes global environmental responsibility and increases the effectiveness of organizations to make critical decisions that benefit society.
The Mission of A&WMA is to assist in the professional development and critical environmental decision-making of our members to benefit society, and the core purpose of A&WMA is to improve environmental knowledge and decisions by providing a neutral forum for exchanging information.
A&WMA offers many downloads, publications, and professional development opportunities.
Business for Social Responsibility (BSR)
BSR helps its member companies integrate sustainability into business strategy and operations through consulting, research, and conventions. 
BSR is a nonprofit business association that serves its 250 member companies and other Global 1000 enterprises. BSR works with corporations and concerned stakeholders of all types to create a more just and sustainable global economy.
BSR is a great source for research, current thought leadership, and news. BSR also hosts a CSR job posting board.
Coalition for Environmentally Responsible Companies (Ceres)
Ceres (pronounced “series”) is a national network of investors, environmental organizations and other public interest groups working with companies and investors to address sustainability challenges such as global climate change.
Its mission is to integrate sustainability into capital markets for the health of the planet and its people.
When it was founded in 1989, Ceres introduced a bold new vision to the business community. That vision is of a world in which business and capital markets promote the well being of human society and the protection of the earth’s biological systems and resources. Ceres advances its vision by bringing investors, environmental groups and other stakeholders together to encourage companies and capital markets to incorporate environmental and social challenges into their day-to-day decision-making. By leveraging the collective power of investors and other key stakeholders, Ceres has achieved dramatic results.
Ceres is a cornerstone of the sustainability movement.
Global Reporting Initiative (GRI)
The Global Reporting Initiative (GRI) has pioneered the development of the world’s most widely used sustainability reporting framework and is committed to its continuous improvement and application worldwide. This framework sets out the principles and indicators that organizations
can use to measure and report their economic, environmental, and social performance.
The framework and its benefits:
The cornerstone of the framework is the Sustainability Reporting Guidelines. The third version of the Guidelines – known as the G3 Guidelines – was published in 2006, and is a free public good. Other components of the framework include Sector Supplements (unique indicators for industry sectors) and Protocols (detailed reporting guidance) and National Annexes (unique country-level information).
Sustainability reports based on the GRI framework can be used to benchmark organizational performance with respect to laws, norms, codes, performance standards and voluntary initiatives; demonstrate organizational commitment to sustainable development; and compare organizational performance over time.
GRI promotes and develops this standardized approach to reporting to stimulate demand for sustainability information – which will benefit reporting organizations and those who use report information alike.
Greenbiz.com
GreenBiz is the leading online news and information resource about how to align environmental responsibility with business success. It offers more than 8,000 resources, including daily news and feature stories, reports, checklists, case studies, and links to organizations, technical assistance 
programs, government agencies, and recognition programs. Its free e-newsletter, GreenBuzz, reaches more than 20,000 professionals every week. GreenBiz also offers news and resources for several green niches.
GreenBiz is an invaluable resource for news, reports, RSS feeds, and more. Be sure to check out the GreenBiz Essentials.
Global Environmental Management Institute (GEMI)
The Global Environmental Management Initiative (GEMI) has created tools and provided strategies to help business foster global environmental, health and safety excellence and economic success. GEMI provides a forum for corporate environmental leaders throughout the world to work together, learn from each other through the activities of work groups, benchmark with peers and create tools that can be used by GEMI members and others.
GEMI is an organization of leading companies dedicated to foster global environmental, health and safety (EHS) excellence through the sharing of tools and information to help business achieve EHS excellence. GEMI currently has 37 member companies representing more than 22 business sectors with comprised annual sales of more than $915 billion USD, global headcount more than 2.5 million and more than 3,034 manufacturing facilities worldwide.
Through the collaborative efforts of its members, GEMI also promotes a worldwide business ethic for EHS management and sustainable development through example and leadership. GEMI is unique in that it provides a way for companies in a wide range of industrial sectors to work together in a cost effective manner. Members address strategic and tactical issues impacting progressive corporate environmental, health and safety activities in their companies around the world.
GEMI’s vision is to be globally recognized as a leader in providing strategies for businesses to achieve EHS excellence, economic success and corporate citizenship.
Sustainable Business Institute (SBI)
The Sustainable Business Institute (SBI) was founded in 1995 to provide companies committed to Sustainability a venue for sharing best practices and promoting shared goals. From small main street store fronts to the executive suites of international businesses, an organization’s attention to sustainable business practices has an impact upon the bottom-line.
SBI’s Mission: To motivate private enterprise to initiate, institutionalize and, communicate sustainable business practices, thereby increasing profitability and shareholder value.
U.S. Green Building Council (USGBC)
The U.S. Green Building Council (USGBC) is a non-profit organization committed to expanding sustainable building practices. USGBC is composed of more than 15,000 organizations from across the building industry that are working to advance structures that are environmentally 
responsible, profitable, and healthy places to live and work. Members includes building owners and end-users, real estate developers, facility managers, architects, designers, engineers, general contractors, subcontractors, product and building system manufacturers, government agencies, and nonprofits.
The Leadership in Energy and Environmental Design (LEED) Green Building Rating System™ managed by the council encourages and accelerates global adoption of sustainable green building and development practices through the creation and implementation of universally understood and accepted tools and performance criteria. (Note: ‘USGBC’ and related logo is a trademark owned by the U.S. Green Building Council and is used by permission.)
World Business Council for Sustainable Development (WBCSD)
The World Business Council for Sustainable Development (WBCSD) is a CEO-led, global association of about 200 companies dealing exclusively with business and sustainable development.
The Council provides a platform for companies to explore sustainable development, share knowledge, experiences and best practices, and to advocate business positions on these issues in a variety of forums, working with governments, non-governmental and intergovernmental organizations.
Members are drawn from more than 35 countries and 20 major industrial sectors. The Council also benefits from a global network of about 55 national and regional business councils and regional partners.
The WBCSD mission is to provide business leadership as a catalyst for change toward sustainable development, and to support the business license to operate, innovate and grow in a world increasingly shaped by sustainable development issues.
