- Ms. Patricia Brady
- Dr. John Gibbons
- Dr. Joseph Sim (President 2022 – 2024 and Editor, Taisteal – newsletter of the TMSI)
- Dr. Astrid Weidenhammer (TMSI representative on the National Immunisation Advisory Committee)
- Mrs. Anne Redmond (Secretary & Treasurer)
- Ms. Maria Duffy
- Col. Dr. Mairead Murphy
- Ms. Gemma Hooper-Jones