| Human Resources | | hr@gsmists.org | |
| Nancy Albrecht | Data Analyst & Placement Coordinator | (616) 888-3838 | |
| Amanda Avella | Community Membership Manager | (616) 888-3826 | |
| Carl Blumberg | Site Coordinator | (616) 204-1654 | |
| Irene Bosman | Director of Retail Operations and Customer Care | (616) 888-3842 | |
| Heather Buckler | Staff Accountant | (616) 888-3832 | |
| Mary Charles | Interim Chief Executive Officer | (616) 888-3839 | |
| Laura Cunningham | Director of Membership | (231) 220-0503 | |
| Kimberly Dukes | Placement Specialist | (616) 888-3829 | |
| Gayle Ebben | Girl Experience Partnerships and Program Coordinator | (616) 888-3844 | |
| JordAnn Ferguson | Program Administrative Support Specialist | (616) 888-3830 | |
| Rachel Franklin | New Troop Start-up Specialist | (616) 888-3833 | |
| Tim Grunwald | Chief Financial Officer | (616) 888-3841 | |
| Kristi Haik | Director of Fund Development | (616) 888-3827 | |
| Krystan Krucki | Marketing and Communications Manager | (616) 888-3848 | |
| Gary Lemke | Property Manager | (616) 888-3835 | |
| Marge Nolle | Specialist Administrative Support Specialist | (616) 888-3831 | |
| Deena Scianimanico | Community Membership Manager | (616) 888-3847 | |
| Laurie Spence | Customer Care Specialist | (616) 888-3840 | |
| Shelly Tansley | Community Membership Manager | (616) 888-3845 | |
