- Better Business Bureau - Eastern Mass, Maine, and Vermont
 - Boston - Offering reliability reports, resource information and counselling documents for businesses. - Boston Back Bay Association
- Boston - Assists member businesses with issues including land use, zoning, licensing, permits, parking, transportation and civic improvements.
- Cambridge Business Development Center
- Cambridge - Provides resources and support for emerging businesses, including counselling, referrals, and sponsored events.
- Charlestown Business Association
- Charlestown - Community business network promoting and supporting local businesses and encouraging networking opportunities.
- Infact
- Boston - National grassroots organization whose purpose is to stop life-threatening abuses by transnational corporations and increase their accountability to people around the world.
- Massachusetts Restaurant Association
- Westborough - Intended to provide information about the food and beverage industry in Massachusetts.
- Nereid Network
- North Chatham - Nonprofit Cape Cod woman's group dedicated to supporting the local commercial fishing industry with networking and increased communication.
- New England Society of Association Executives (NE/SAE)
- Waltham - Working to address important and timely issues in association management throughout the New England region.
- Provincetown Business Guild
- Provincetown
- Smaller Business Association of New England (SBANE)
- Waltham - A private, nonprofit organization established to help small companies grow.
- South End Business Alliance
- Boston - Organizing and unifying businesses in the South End of Boston by developing, improving, and supporting the maintenance of the neighbourhood and improving the social and physical condition of the South End while preserving its diversity and those social and physical characteristics of positive value to the area.
- Stratham Business Association
- Stratham - Engaging in local business advocacy, networking, promotion, and more.
- Working Capital
- Gloucester - Nonprofit program that increases the income and success of the self-employed through loans, business training, and mutual support.
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