Lodestone Consulting (and its predecessor entity GCL Consulting Limited) works with clients predominantly from the local and central government sectors. They include:
Local government sector
- Ashburton District Council
- Auckland Council
- Christchurch City Council
- Christchurch City Holdings Limited
- ECan (Canterbury Regional Council)
- Hamilton City Council
- Hurunui District Council
- New Plymouth District Council
- North Shore City Council
- Regenerate Christchurch
- Rodney District Council
- Queenstown Lakes District Council
- Stronger Christchurch Infrastructure Rebuild Team (SCIRT)
- Wellington City Council
Central government sector
- Airways Corporation
- Commerce Commission
- Crown Law
- Department of Conservation
- Department of Labour
- Environment Agency (England)
- Greater Christchurch Group
- Inland Revenue Department
- Land Transport New Zealand
- Ministry of Agriculture and Forestry
- Ministry of Business Innovation and Employment
- Ministry of Defense
- Ministry of Fisheries
- Ministry of Primary Industries
- Ministry of Social Development
- NZTA
- Te Puni Kōkiri (Māori Trust Office)
- State Services Commission
Private sector
- Fomana Capital Limited
- Telstra Clear
- Jade Software
- Development West Coast