Brand now available in France, Finland, Italy, Switzerland, Hong Hong and Australia among other territories.
Already a hit in the UK, Over the Moon's greeting card brand Pip is expanding its presence in other markets.
The cards are now available in France, Finland, Italy, Switzerland, Hong Kong, Japan, New Zealand and Australia, with distributors in Belgium, Germany and the US also interested.
The brand has been particularly successful in France and Finland, where more than 30,000 cards have been sold in both countries.
As well as cards, Over the Moon also produces Pip-branded party invites, plus a range of notebooks.