The contract, to supply Subway's outlets in the UK and Ireland, will result in Enron's volume increasing to over 150m sticks over the next three years.
Management said the contract represented the strengthening of its existing long-term collaborative partnership with Subway due to the chain's success.
"Subway sold 53.3m sticks in its 617 stores across the UK and Ireland last year," said Evron's Dominic Downey.
Subway has indicated its intention to expand its business and thus Evron's management is keen to develop its commercial partnership with the chain.
In the past 12 years Evron has supplied Subway's stores throughout Europe with more than 100m breadsticks.
Evron's other customers include Cuisine de France and Delice de France as well as UK supermarkets Asda and Waitrose.
The company also manufactures the Easibake and La Baguette brands.
The baker's strategy for future growth and development is built around the continued growth of private label products in the retail and foodservice sectors along with establishing manufacturing alliances with European and American food processors.
The Portadown-based company was established in 1983 and has annual sales of £12m.