| Company | Timeline | Status | |
| Donal Hayes Holdings Limited Director • Construction & Civil Engineeri | 3 Apr 2006←19 Years→Current | Active | |
| Donal Hayes Construction Limited Director • Construction & Civil Engineerin | 21 Mar 2006←19 Years→Current | Active | |
Donal Hayes Plant Hire Limited Director • Construction & Civil Engineeri | 21 Mar 2006←9 Years→12 May 2015 | Dissolved | |
| Donal Hayes & Sons (Building And Civil Engineering) Limited Director • Director | 28 Sep 1993←32 Years→Current | Active | |
