Major clients for which Amtel has undertaken several projects:
- Balfour Beatty (UK).
- Areva T&D (Ireland).
- Alstom Grid (Ireland).
- RZE (Polish National Grid).
- TP SA Telekomunikacja Polska (Polish National Telecommunications).
- PGNiG (Polish Mining Gas and Oil Enterprise).
- Staszow County Council (Poland).
- Forbes Bros. Ltd. (Canada).
- ATCO GAS (Canada).
- Eircom (Ireland).
- ESB (Ireland).
- Siemens.
- Alcatel.