Organizations often take a stand on issues--whether to support or denounce.
Statements may be made by the leader (i.e. chair, president, CEO) or released on behalf of the entire organization. Keep in mind statements from larger organizations--think national or state--usually hold more weight. Similarly, a social media post from an official organization account is noteworthy but not as meaningful as a full statement.
Examples:
Letter Concerning the Community Services Block Grant Modernization Act (H.R. 5129) - from Catholic Charities USA
AASL Signs Letter Calling a Halt to Anti-LGBTQ+ Legislation - from American Association of School Libraries via American Library Association
Letter of Support for the Geriatrics Workforce Improvement Act (S. 299) - from the National Association of Social Workers
Each policy will interest different organizations. Brainstorm some organizations that might be paying attention to your policy and search for statements or press releases.
- professional organizations e.g. Fraternal Order of Police, American Psychological Association,
- advocacy organizations e.g. Human Rights Campaign, NAACP, National Congress of American Indians
- political organizations e.g. Emily's List, Serve America Movement, Libertarian Party
- charities and nonprofits e.g. St. Jude, Doctor's Without Borders, Environmental Defense Fund