| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BELFAST INFORMATION TECHNOLOGY SERVICES LIMITED | NI018209 | 19/02/1985 | Dissolved |
| CIRDAN IMAGING LIMITED | NI603247 | 27/10/2010 | Amber |
| Dynos Turbines Ltd | NI020334 | 01/04/1987 | Dissolved |
| LIMEFORGE LTD | NI617925 | 01/07/2015 | One Red Flag |
| Sideo Ltd | NI055470 | 08/06/2005 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALLEGRO DVT UK LTD | NI629219 | 01/03/2017 | 09/10/2019 | Silver |
| ANALYTICS ENGINES LIMITED | NI070848 | 14/09/2012 | 18/05/2021 | Amber |
| APT LICENSING LIMITED | NI054094 | 01/04/2006 | 30/06/2006 | Dissolved |
| AUDIO PROCESSING TECHNOLOGY LIMITED | NI022049 | 01/08/2005 | 01/04/2006 | Dissolved |
| Amphion Semiconductor | NI024395 | 25/04/1990 | 29/06/2004 | Dissolved |
| Amphion Semiconductor (Asia) Ltd | NI036792 | 21/09/1999 | 29/06/2004 | Dissolved |
| Heuchera Technologies Ltd | NI046718 | 10/10/2003 | 14/12/2007 | Dissolved |
| ICONICRF LIMITED | NI649947 | 20/12/2019 | 13/08/2021 | Silver |
| THE BYTES PROJECT | NI027446 | 28/04/1993 | 01/11/1999 | Silver |