Dianne Gillis has provided services to the following clients:
| New Zealand Government | Human Services-NGO |
| Ministry of Health | Mercy Aged Care Services |
| Centacare | |
| Catholic Education Office | |
| State Government | |
| Queensland Health | Resources |
| Department of Community Safety, QCESA, Queensland | CALTEX Australia |
| Skills Victoria, Department of Innovation, Industry and Regional Development, Victoria | Traverse Drilling |
| Department of Communities Queensland | |
| Department of Transport and Main Roads, Queensland | Construction |
| Department of Employment, Economic Development and Innovation, Queensland | The John Holland Group Rohrig Constructions |
| Local Government | |
| Brisbane City Council | Agribusiness |
| Townsville City Council | Chesterfield Australia Pty Ltd |
| Honeycombes Sales and Service | |
| Government Owned Corporations | Professional Services |
| Port of Brisbane Corporation | SHINE Lawyers |