The following table summarises the contracted providers for 2026/27:
| Ancillary Service Agent | MFK | Backup SFK | IR | OFR | BS |
|---|---|---|---|---|---|
| Contact Energy | ✅ Expires 2027 | ✅ Expires 2027 | ✅ Expires 2027 | ✅ Expires 2026 | ✅ Expires 2026 (SI) |
| Counties Power | ✅ Expires 2027 | ||||
| Enel X NZ (also includes Pan Pac) | ✅ Expires 2027 | ||||
| Genesis Energy | ✅ Expires 2027 | ✅ Expires 2027 | ✅ Expires 2027 | ✅ Expires 2027 (NI) | |
| King Country Energy | ✅ Expires 2027 | ||||
| Manawa Energy | ✅ Expires 2027 | ||||
| Mercury Energy | ✅ Expires 2027 | ✅ Expires 2027 | ✅ Expires 2027 | ✅ Expires 2026 | ✅ Expires 2027 (NI) |
| Meridian Energy | ✅ Expires 2027 | ✅ Expires 2027 | ✅ Expires 2027 | ✅ Expires 2026 | ✅ Expires 2026 (SI) |
| NewPower Energy | ✅ Expires 2027 | ||||
| Nga Awa Purua (Mercury) | ✅ Expires 2026 | ||||
| PowerNet | ✅ Expires 2027 | ||||
| Tuaropaki (Mercury) | ✅ Expires 2026 | ||||
| Vector | ✅ Expires 2027 | ||||
| WEL Networks | ✅ Expires 2027 |