Co Leitrim based company, Masonite, exported goods to the value of €50m according to the 2013 edition of Top 250 Exporters in Ireland and Northern Ireland.
Masonite manufactures moulded door facings, which they supply direct to door-manufacturing partners across 32 countries.
Software manufacturer and designer Microsoft was named the largest exporting company in Ireland, moving up one place from its previous year’s ranking.
It was followed closely by Google (2nd), Johnson & Johnson (3rd) and Dell (4th).
Aisling Dodgson, Head of Treasury, Investec, said: “This is Investec’s third year partnering with the Irish Exporters Association for this report.
“Investec has been in Ireland for 15 years and over the years has built strong client relationships across all sectors.
“The continued expansion of the indigenous Irish sector is very encouraging and has been helped through a weakening of the euro against both US dollar and Sterling in recent years and has also been supported by historically low interest rates.
Ms Dodgson concluded: “The export sector has a key role to play in helping the economy to grow and allow Ireland emerge as a global player into the future.
“At Investec, we are enhancing our offerings and services to help build a stronger, more confident sector.
“With this in mind, we recently established a debt capital markets team in Dublin, the lending capabilities of which will enhance our corporate finance advisory services.
“In addition, our competitive offering in the foreign exchange, commodity, interest rate and deposit taking markets are there to support the growth of the Irish corporate sector.”