The latest figures (Nov '10) from the Health Insurance Authority stated that the percentage with health insurance fell to 49.8%.
This is a reduction of 33,000 in the first 9 months of the year.

The HSF have invested in a press, radio & online campaign to increase awareness and recruit new customers for their value offering as their premiums have not increased.
Founded in 1873, The HSF (Hospital Saturday Fund) is a registered charity.
HSF health plan provides extensive cover for everyday health care expenses like GP & dental fees, sight tests, glasses and contact lenses as well as other medically related expenses such as hospital visits, physiotherapy and a number of complementary treatments. The plan also includes full personal injury cover and members get access to a free GP advice line.They offer both personal and company plans.

http://www.hsf.ie