| naha.org | The National Association for Holistic Aromatherapy |
| ifraorg.org | International Fragrance Association |
| ifaroma.org | International Federation of Aromatherapists |
| ifa.org.au | International Federation of Aromatherapists (IFA) Australian Branch |
| aromaticplantproject.com | Aromatic Plant Project |
| aromatherapycouncil.org | Aromatherapy Registration Council |
| aromatherapyalliance.org | Aromatherapy Alliance |
| aromatherapy-regulation.org.uk | Aromatherapy Consortium |
| aroma-iata.com | International Aromatherapists and Tutors Association |
| bcapa.org | British Columbia Association of Practicing Aromatherapists |
United States , Arizona , Scottsdale