The Triangle Garden is managed by a team of dedicated volunteers and paid staff.
Staff (paid and volunteer roles)
| Julie Zirngast | Project Manager |
| Steve Granger | Site & Horticulture Manager |
| Steve Granger, Liz Millbank, Karenanne Hay, Dulcie Buckenham and Helen Fitch-Hunter | Horticulture Therapy Support Staff |
| Yolanda Warrell, Carol Knight, Sue Malcolm and Sheena Cox | Horticulture Therapy volunteers |
Trustees (voluntary roles)
| Vicky Wyer | Chair of Trustees |
| Adrian Stones | Vice Chair |
| Andrew Green | Treasurer |
| Gareth Hills | Trustee |
| Hilary Oughton | Trustee |
| John Wyer | Trustee |
| Isabelle Robinson Kate Hughes | Trustee Trustee |
Non-trustee committee members (voluntary roles)
| Gemma Ward | Events Committee |
| Mel Coath | Events Committee |
| Karenanne Hay | Events Committee |
| Funmi Daramola | Accounts Assistant |
| Fiona Dolman | Garden Committee co-chair |
| Kavita Krishna | Garden Committee co-chair |
| Sean Blackmore | Garden Committee |
| Gill Martin | Garden Committee & Events Committee |
| Mariana Mercado | Garden Committee |
| Robin Clarke | Webmaster |