ARNO is the membership organisation for all Royal Navy, Royal Marines and QARNNS officers along with their Maritime Reserve counterparts.

RNOC provides benevolence to both serving and retired officers of the Naval Service (RN, RM and QARNNS), their spouses, former spouses and dependants who are in need of financial support. The Charity continues to make a real difference to the quality of life for beneficiaries through the breadth of their grant making. Support includes assistance to those on low incomes, care home fees, scholarships and re-training to gain employment.