| AMA Baltimore: Local Chapter of the American Marketing Association. |
| Association of Energy Engineers, Baltimore Chapter: Promotes the scientific and educational interests of its members, and the community. Includes meeting dates and location, officers, and energy related issues. |
| Association of Information Technology Professionals (AITP): Baltimore Chapter encompassing the entire IT community; membership information, and event calendar. |
| Association of Women in Computing (AWC), Baltimore, Maryland Chapter.: Provides support and networking to women in information technology fields. Highlights include meeting calendar, chapter history, resource links, how to join, and membership benefits. |
| Baltimore Business & Social Club: A social business event club. Find membership and event information. |
| Baltimore City Chamber of Commerce: Promotes businesses to maximize business and economic development. Find member directory and information, resources and events. |
| Baltimore Development Corporation: A 501(c)(3) corporation contracted with the City of Baltimore to provide economic development services. Find initiatives, development activities and assistance information. |
| Greater Baltimore Technology Council: Harnesses the local technological, investment, educational, governmental, and entrepreneurial resources to grow a strong technology community. |
| MIT Enterprise Forum of Washington-Baltimore: Non-profit networking organization dedicated to the entrepreneur community. Features events and membership information. |
| National Association of African Americans in Human Resources, Baltimore Chapter: NAAAHR Baltimore provides support and networking for its members through a range of programs and services, employment listings, contacts and links. |
| Overlea Fullerton Business and Professional Association: A non-profit association to further the economic and community development of the U.S. Route 1 corridor of Belair Road. |
| PMI Baltimore Chapter: A nonprofit organization educating project managers and promoting professionalism in project management. Find news, events, education and membership information. |
| World Trade Center Institute: A private, nonprofit organization financed jointly by the State of Maryland and private sector business, dedicated to educating and connecting Maryland to the globe. |