NJJ, the private investment firm operated by telecoms investor and operator Xavier Niel, already owns the French telco Iliad.
Eir is currently owned by an investor group including Anchorage Capital Group, Davidson Kempner Capital Management LP, GIC and management.
Carl Leaver, Chairman of Eircom Holdings (Ireland) Limited, said: “Today marks an important milestone for eir, our customers and indeed for Ireland itself. Iliad and NJJ Telecom Europe bring a wealth of global telecommunications experience which will be of huge benefit to eir and its customers. Coupled with the continued involvement of our existing shareholders, Anchorage Capital and Davidson Kempner, the company is well positioned to continue its operational transformation, underpinned by sustained investment, innovative products and services and improved financial performance”.
NJJ, which will own 32.9% while existing shareholders Anchorage Capital Group and Davidson Kempner will retain a combined 35.5% share in the company, respectively 26.6% and 8.9%.