The company's asked for children to design the front of an advent calendar by taking inspiration from the Gospel accounts of the birth of Jesus.
David Marshall, director of the Meaningful Chocolate Company said the contest was inspired from their Real Easter Egg Campaign which asked entrants to depict the resurrection.
He told Premier: "We got some amazing pictures. We just thought it would be very interesting to see if they got the chance to design an advent calendar what they would include.
"It's quite difficult because there are so many secular calendars out there.
"What we want to do is put the nativity characters on the front of an advent calendar... something you don't find in the 99p Barbie advent calendar."
The competition is open to schools, churches and children's groups.
Marshall said since it's open to everyone he hopes it will also serve as an evangelism tool.
He told Premier: "We're hoping that in reading the Bible and the Gospels around Christmas that they will encounter the Christmas story.
"We know for example that quite often advent calendars are the first time children will encounter the Christmas story
"During those 24 days they're learning more about advent, about Christmas, and at the end of those 24 days the children have learned something, and also quite often the parents go on the journey as well.
"So these advent calendars they sound quite superficial but actually they're a great teaching tool.
There are three first prizes of £150 in each category and three runners-up prizes of £50.
Listen to David Marshall speaking with Premier's Alex Williams here: