Businesses involved in the the following industries (as defined by the SIC Codes 2007) can use the ProQuin product as defined in the table below.
| Options |
 |
 |
 |
| 86 Human health activities |  |  |  |
| 86.1 Hospital activities |  |  |  |
| 86.10 Hospital activities |  |  |  |
| 86.10/1 Hospital activities |  |  |  |
| 86.10/2 Medical nursing home activities |  |  |  |
| 86.2 Medical and dental practice activities |  |  |  |
| 86.21 General medical practice activities |  |  |  |
| 86.22 Specialist medical practice activities |  |  |  |
| 86.23 Dental practice activities |  |  |  |
| 86.9 Other human health activities |  |  |  |
| 86.90 Other human health activities |  |  |  |
| 87 Residential care activities |  |  |  |
| 87.1 Residential nursing care activities |  |  |  |
| 87.10 Residential nursing care activities |  |  |  |
| 87.2 Residential care activities for mental retardation, mental health and substance abuse |  |  |  |
| 87.20 Residential care activities for mental retardation, mental health and substance abuse |  |  |  |
| 87.3 Residential care activities for the elderly and disabled |  |  |  |
| 87.30 Residential care activities for the elderly and disabled |  |  |  |
| 87.9 Other residential care activities |  |  |  |
| 87.90 Other residential care activities |  |  |  |
| 88 Social work activities without accommodation |  |  |  |
| 88.1 Social work activities without accommodation for the elderly and disabled |  |  |  |
| 88.10 Social work activities without accommodation for the elderly and disabled |  |  |  |
| 88.9 Other social work activities without accommodation |  |  |  |
| 88.91 Child day-care activities |  |  |  |
| 88.99 Other social work activities without accommodation n.e.c. |  |  |  |