This industry comprises establishments primarily engaged in promoting the business interests of their members. These establishments may conduct research on new goods and services, publish newsletters, develop market statistics, or sponsor quality and certification standards.

This industry comprises establishments primarily engaged in advancing the professional interests of their members and the profession as a whole.

This industry comprises establishments primarily engaged in the regulation of relations between employers and employees. These establishments negotiate with employers to improve the income and working conditions of their members.

This industry comprises establishments primarily engaged in promoting the interests of national, provincial or local political parties or candidates. Political groups, organized to raise funds for a political party or individual candidates, are included.

This industry comprises establishments, not classified to any other industry, primarily engaged in promoting the interests of their members.