A lot of more or less formally constituted organisations and informal groups came together at various stages during the development of the green movement. Here we list a sample of some significant ones in chronological order of founding.
| Name | Start | Notes |
|---|---|---|
| The Fawcett Society | 1866 | to today |
| The Sierra Club | 1892 | to today |
| The Ecological Society of America | 1915 | to today |
| Oxfam | 1942 | to today |
| The Soil Association | 1946 | to today |
| CND | 1957 | to today |
| The Conservation Corps | 1959 | became British Trust for Conservation Volunteers (BTCV) to today |
| World Wildlife Fund | 1969 | to today |
| Primitive People's Fund (Survival International) | 1969 | to today |
| Oxford Ecology Action | 1971 | First EA group in UK, Ecology Action originated in US in 1969 |
| Friends of the Earth UK | 1971 | US parent founded 1969, to today |
| Movement for Survival | 1972 | Merged into PEOPLE 1973/4 |
| PEOPLE | 1973 | Renamed as Ecology Party 1975 |
| Socialist Environment & Resources Association (SERA) | 1973 | to today |
| Ecology Party | 1975 | Renamed as Green Party 1985 |
| Oxford Political Ecology Research Group (PERG) | 1976 | to about 1990 |
| Oxford Ecology Movement | 1978 | Disolved after 1979 election |
| Greenpeace UK | 1977 | US/Canada parent founded 1969-71, to today |
| Green CND | 1975 | to 1985 |
| The Green Collective | 1982 | to 1987 |
| GreenLine Magazine | 1982 | to late 1990s |
| SDP Greens | 1983 | SDP merged with Liberal Party 1988 by which time SDP Greens had finished |
| The Green Party | 1985 | to 1990 |
| The Green Party of England and Wales | 1990 | Renamed after Scotland and Northern Ireland formed separate Green Parties, to today |