Pictures of missing people, including Trevor Deeley, are to appear on Deliveroo backpacks in Dublin and Cork during the month of December.
The Kildare man was 22 when he disappeared in December 2000, he was last seen on Baggot Street.
The food delivery service has announced the 'Bring Them Home' campaign to mark National Missing Persons Day.
100 Deliveroo riders will carry mobile billboards with images of missing people and the helpline contact details on their backpacks.
A similar campaign in the UK has helped to find four missing people.
Michael Healy, Deliveroo Country Manager said:
“The brilliant work of the National Missing Persons Helpline is life-changing for families. We knew we wanted to help them with their important work. Our riders are visible across Dublin and Cork. They are at the heart of our business and want to play a part in the communities they work in."
Helpline
The company will also make a contribution of €10,000 to the National Missing Persons Helpline and will enable customers to donate on the app.
According to the helpline, the average number of reports received each year is 8,700, with over 90 people un-traced at the end of each year. While the vast majority are found within 24 hours, approximately 45 people reported missing in Ireland in 2018 remain unaccounted for.
The National Missing Persons Helpline is available on 1890 442 552.
