Washington DC Technology Council
- Trade association seeks to promote the development, growth and recognition of member technology companies in the metropolitan area. Features events, membership information, news and presentations.
- http://www.dctechcouncil.org/

National Biometric Security Project
- Support regarding application of biometric technology; from development of standards, to focused testing, research, training, and education.
- http://www.nationalbiometric.org/

Service Corps of Retired Executives DC Chapter - SCORE
- Counsels men and women who plan start-ups or who manage existing small businesses. Includes membership information, workshops and news.
- http://www.scoredc.org/

Greater Washington Ibero American Chamber of Commerce
- Organization for Hispanic-owned businesses in the Washington, DC, metro area.
- http://www.iberochamber.org/

Zonta Club of Washington D.C.
- Executives in business and the professions working together to advance the status of women. Features events, projects, foundation information and newsletter.
- http://www.zontawashingtondc.org/

The Economic Club of Washington
- Offers a forum for prominent business and government leaders to express their views on the most important economic issues and promotes a greater sense of community among business leaders, government officials, and members of the diplomatic corps. Features
- http://www.economicclub.org/

Greater Washington Women's Network
- Works to advance the business skills of women. Features events, membership information, officers and committees, and community activities.
- http://www.gwwn.org/

Baltimore-Washington Corridor Chamber of Commerce
- Providing networking, information and growth resources to all sizes of businesses between the Washington and Baltimore metropolitan areas. Features events, membership information, news, committees and annual report.
- http://www.baltwashchamber.org/

Swedish-American Chamber of Commerce, Washington DC
- Works to create business opportunities for members through events and networking. Features membership information, calendar and young professional's information.
- http://www.sacc-dc.org/

Restaurant Association of Metropolitan Washington
- Represents and promotes the food service industry through education, government relations, professional activities and membership benefits. Features news, dining guide, calendar and membership information.
- http://www.ramw.org/

PEN
- Formerly called Potomac Executive Network, this group brings together GLBT professionals who work in business, non-profits or government in the metro DC area.
- http://www.pendc.org/

Greater Washington Initiative
- Promotes the metro area as an ideal location for locating or expanding a business. Features regional information, publications, press releases, newsletter, maps and partners.
- http://www.greaterwashington.org/

Women's Information Network
- Political and social network of young, pro-choice, Democratic women that provides a forum for advancement, mentoring and leadership opportunities. Features events, history, networks, membership information and FAQ.
- http://www.winonline.org/

Washington International Trade Association
- Neutral forum where business leaders and policy-makers can openly discuss issues of international trade. Features membership information, events, trade information and employment opportunities.
- http://www.wita.org/

Greater Washington Board of Trade
- Provides resources and leadership to stimulate the growth the regional economy. Features membership information, events, advocacy information, volunteer opportunities and news.
- http://www.bot.org/

DC Chamber of Commerce (DCCC)
- Nonprofit membership organization dedicated to improving the climate for business in the District. Features membership information, member directory, calendar, programs and visitor and resident information.
- http://www.dcchamber.org/