Clontarf has 35 listed in postcode 4019. Claimed businesses first, then A to Z.
As of October 2026 the guide lists 35 manufacturing and supply businesses in Clontarf, postcode 4019. Every one links to its own website where it has one.
Of the 35, 14 show a phone number taken from the business's own website or entered by the owner, and 26 link to a website. Numbers are never taken from other directories.
Every listed website is checked by the guide's system each day. A business comes off the guide only when there is clear sign it has closed, seen on two checks at least 7 days apart. A slow or briefly down website never removes it.