Impact
Impact, with the caveats attached.
These tables rank what organizations publish, not what grows. Every row shows the inputs behind it. Comparing a neighborhood nonprofit with a national program tells you nothing, so pick a scope first. How each figure is calculated.
Most transparent
How much each organization lets the public check: annual figures, recent, sourced, financials, survival, program breakdowns. A score of reporting, not of outcomes.
| # | Organization | Score | Earned for |
|---|---|---|---|
| 1 | Friends of Trees🇺🇸 United States · Regional | 64 | Well documented: publishes annual tree figures, figures are recent, every figure has a public source, publishes financials or cost per tree, breaks figures down by program, reports volunteers or events |
| 2 | Forest ReLeaf of Missouri🇺🇸 United States · Regional | 55 | Partly documented: publishes annual tree figures, figures are recent, every figure has a public source, reports survival or monitoring, breaks figures down by program |
| 3 | SUGi🇺🇸 United States · Global | 54 | Partly documented: publishes annual tree figures, figures are recent, every figure has a public source, reports survival or monitoring, breaks figures down by program, reports volunteers or events |
| 4 | New York Restoration Project🇺🇸 United States · Local | 50 | Partly documented: publishes annual tree figures, figures are recent, every figure has a public source, breaks figures down by program, reports volunteers or events |
| 5 | Reforestamos México🇲🇽 Mexico · National | 50 | Partly documented: publishes annual tree figures, figures are recent, every figure has a public source, breaks figures down by program, reports volunteers or events |
| 6 | Tree Canada🇨🇦 Canada · National | 50 | Partly documented: publishes annual tree figures, figures are recent, every figure has a public source, breaks figures down by program, reports volunteers or events |
| 7 | Eden: People+Planet🇺🇸 United States · Global | 46 | Partly documented: publishes annual tree figures, figures are recent, every figure has a public source, publishes financials or cost per tree, breaks figures down by program |
| 8 | Arbor Day Foundation🇺🇸 United States · Global | 45 | Partly documented: publishes annual tree figures, figures are recent, every figure has a public source, breaks figures down by program, reports volunteers or events |
| 9 | Casey Trees🇺🇸 United States · Regional | 45 | Partly documented: publishes annual tree figures, figures are recent, every figure has a public source, breaks figures down by program, reports volunteers or events |
| 10 | Sacramento Tree Foundation🇺🇸 United States · Regional | 45 | Partly documented: publishes annual tree figures, figures are recent, every figure has a public source, breaks figures down by program, reports volunteers or events |
| 11 | Tree Pittsburgh🇺🇸 United States · Local | 45 | Partly documented: publishes annual tree figures, figures are recent, every figure has a public source, breaks figures down by program, reports volunteers or events |
| 12 | TreeFolks🇺🇸 United States · Regional | 45 | Partly documented: publishes annual tree figures, figures are recent, every figure has a public source, breaks figures down by program, reports volunteers or events |
Most trees in their latest reported year
Trees planted or distributed in the most recent year each organization reports. Cumulative totals are left out on purpose.
| # | Organization | Trees | Year |
|---|---|---|---|
| 1 | Green Legacy Initiative (Ethiopia)🇪🇹 Ethiopia · National | 714.7M | 2025 · has a data note |
| 2 | Eden: People+Planet🇺🇸 United States · Global | 73M | 2023 · has a data note |
| 3 | One Tree Planted🇺🇸 United States · Global | 51.9M | 2023 |
| 4 | Trees for the Future🇺🇸 United States · Regional | 49.9M | 2025 |
| 5 | Ecosia🇩🇪 Germany · Global | 18.4M | 2024 · has a data note |
| 6 | WeForest🇧🇪 Belgium · Global | 16.6M | 2024 · has a data note |
| 7 | Tree Aid🇬🇧 United Kingdom · Regional | 8.8M | 2026 |
| 8 | Woodland Trust🇬🇧 United Kingdom · National | 6M | 2025 · has a data note |
| 9 | Tree-Nation🇪🇸 Spain · Global | 5.5M | 2025 |
| 10 | Plant With Purpose🇺🇸 United States · Global | 5M | 2019 |
| 11 | Arbor Day Foundation🇺🇸 United States · Global | 4M | 2025 · has a data note |
| 12 | Forests Canada🇨🇦 Canada · National | 3.6M | 2025 · has a data note |
Growing fastest
Change between the last two consecutive annual figures. Needs at least 1,000 trees in the latest year to count.
| # | Organization | Year over year | From → to |
|---|---|---|---|
| 1 | Trees That Count🇳🇿 New Zealand · National | +127% | 2021: 220K → 2022: 500K |
| 2 | Reforestamos México🇲🇽 Mexico · National | +37% | 2024: 215.3K → 2025: 295K |
| 3 | Trees for the Future🇺🇸 United States · Regional | +17% | 2024: 42.5M → 2025: 49.9M |
| 4 | Tree-Nation🇪🇸 Spain · Global | +4% | 2024: 5.3M → 2025: 5.5M |
| 5 | New York Restoration Project🇺🇸 United States · Local | +3% | 2024: 4.5K → 2025: 4.6K |
| 6 | Friends of Trees🇺🇸 United States · Regional | +1% | 2025: 39.1K → 2026: 39.4K |
| 7 | One Tree Planted🇺🇸 United States · Global | -2% | 2022: 52.8M → 2023: 51.9M |
| 8 | Plant-for-the-Planet🇩🇪 Germany · Global | -4% | 2022: 2.4M → 2023: 2.3M |
| 9 | Trees For Houston🇺🇸 United States · Regional | -11% | 2024: 101K → 2025: 90K |
| 10 | Treedom🇮🇹 Italy · Global | -73% | 2023: 162.2K → 2024: 43.3K |
Trees per volunteer
Trees in a year divided by volunteers that same year. High numbers usually mean paid crews or contractors do most of the planting; low numbers mean small, hands-on events.
| # | Organization | Trees / volunteer | Inputs |
|---|---|---|---|
| 1 | Tree Canada🇨🇦 Canada · National | 145.4 | 2.3M trees, 16K volunteers, 2025 |
| 2 | Reforestamos México🇲🇽 Mexico · National | 36.4 | 295K trees, 8.1K volunteers, 2025 |
| 3 | TreeFolks🇺🇸 United States · Regional | 22.1 | 62.5K trees, 2.8K volunteers, 2025 |
| 4 | Friends of Trees🇺🇸 United States · Regional | 7.9 | 39.1K trees, 5K volunteers, 2025 |
| 5 | Texas Trees Foundation🇺🇸 United States · Regional | 4 | 6K trees, 1.5K volunteers, 2025 |
| 6 | New York Restoration Project🇺🇸 United States · Local | 3.9 | 4.6K trees, 1.2K volunteers, 2025 |
| 7 | TreePeople🇺🇸 United States · Regional | 2.2 | 15.1K trees, 6.9K volunteers, 2024 |
| 8 | The Greening of Detroit🇺🇸 United States · Local | 1.9 | 8K trees, 4.2K volunteers, 2024 |
| 9 | Casey Trees🇺🇸 United States · Regional | 1.8 | 7.3K trees, 4K volunteers, 2025 |
| 10 | Sacramento Tree Foundation🇺🇸 United States · Regional | 1.2 | 600 trees, 500 volunteers, 2024 |
| 11 | Trees Atlanta🇺🇸 United States · Local | 0.8 | 9.4K trees, 11.6K volunteers, 2025 |
| 12 | Tree Pittsburgh🇺🇸 United States · Local | 0.7 | 1.9K trees, 2.8K volunteers, 2025 |
Dollars per tree, lowest first
A stated cost per tree where one is published; otherwise total funds raised divided by trees recorded in the same year. The second is not a cost: organizations do more than plant, and donations don't all land in the year they're spent.
| # | Organization | $ / tree | Basis |
|---|---|---|---|
| 1 | Friends of Trees🇺🇸 United States · Regional | $89 | $2.7M raised ÷ 29.8K trees, 2024 |
Survival rates reported
The rarest figure of all. Most organizations never publish one; the ones here deserve credit for saying.
| # | Organization | Survival | Year, confidence |
|---|---|---|---|
| 1 | Forest ReLeaf of Missouri🇺🇸 United States · Regional | 90% | 2025, reported |
| 2 | SUGi🇺🇸 United States · Global | 86% | 2025, reported |