Sources
Trade Unions
- Center of United and Progressive Workers
- Computer Professionals Union
- Federation of Free Workers
- Geodetics Engineers of the Philippines
- Geological Society of the Philippines
- Institute of Electronics Engineers of the Philippines
- Institute of Integrated Electrical Engineers
- Integrated Bar of the Philippines
- Integrated Midwives Association of the Philippines
- Occupational Therapy Association of the Philippines
- Pharmaceutical Association of the Philippines
- Philippine Association of Medical Technologists
- Philippine Association of Naval Architects and Marine Engineers
- Philippine Institute of Certified Public Accountants
- Philippine Institute of Chemical Engineers
- Philippine Institute of Civil Engineers
- Philippine Institute of Environmental Planners
- Philippine Librarians Association
- Philippine Medical Association
- Philippine Nurses Association
- Philippine Seafarers Union
- Philippine Society of Agricultural Engineers
- Philippine Society of Mechanical Engineers
- Philippine Society of Mining Engineers
- Philippine Society of Sanitary Engineers
- Philippine Veterinary Medical Association
- Society of Aerospace Engineers of the Philippines
- Society of Metallurgical Engineers of the Philippines
- Solidarity of Filipino Workers
- Trade Union Congress of the Philippines
- United Architects of the Philippines
Journalist Associations
- Association of Broadcasters of the Philippines
- Economic Journalist Association of the Philippines
- National Union of Journalists of the Philippines
- Philippine Science Journalists Association
- Philippines Press Institute
News Agencies (usual newswire sources of local media outlets)
Audience measurement organisations