Errigal Fish Company Limited: Seafood Processors and Exporters was founded in 1972 and is a member of the Lett Group Limited.

Errigal's modern processing plant consists of two factories both consisting of 8000 square meters in size.

The facilities have been HACCP approved which incorporates:

- 250 Mt Blast Freezing per day.
- 4 Horizontal Plate Freezers.
- 6,500 Mt Cold Storage
- IQF freezing Plant.
- Automatic Filleting & Marinating Processing Lines.
- Purpose built Shellfish Cooking lines 40 tonnes per day.
- In House Laboratory for Microbiological , Chemical & Organoleptic analysis.
- Biological Waste-water treatment plant.