The following list of abbreviations and organisations refers to the diagram on the previous page.
| SIP | Severnside Institute for Psychotherapy 1980s |
| ARBA | Arbours Association founded 1970s |
| AGIP | The Association for Group and Individual Psychotherapy 1974 |
| AIP | The Association of Independent Psychotherapists 1988 |
| BAPPPS | British Association of Psychoanalytic and Psychody- namic Psychotherapy Supervisors 1980 |
| CSP | Cambridge Society for Psychotherapy 1980 |
| CAPP | Centre for Attachment-Based Psychoanalytic Psychotherapy 1992 |
| CFAR | Centre for Freudian Analysis and Research 1985 |
| CSPK | Centre for the Study of Psychotherapy 1981 |
| GUILD | Guild of Psychotherapists 1974 |
| HIP | Hallam Institute of Psychotherapy 1985 |
| IGA | Institute of Group Analysis 1971 |
| IPSS | Institute of Psychotherapy and Social Studies 1978 |
| LPDO | Liverpool Psychotherapy and Diploma Organisation 1980 |
| NAFSI | NAFSIYAT 1985 |
| NAAP | Northern Association for Analytical Psychology 1981 |
| NWIDP | North West Institute for Dynamic Psychotherapy 1991 |
| PA | Philadelphia Association 1965 |
| SITE | The Site for Contemporary Psychoanalysis 1997 |
| SPMP | Society for Psychoanalytic Marital Psychotherapy 1990 |
| STTDP | South Trent Training in Dynamic Psychotherapy 1998 |
| TMSI | Tavistock Marital Studies Institute 1948 |
| VAPP | Vaughn Association of Psychodynamic Psychotherapists 1982 |
| WMIP | West Midlands Institute of Psychotherapy 1980 |
| WPF | Westminster Pastoral Foundation 1980s |
| WTC | Women’s Therapy Centre 1980s |
| TAPP | Yorkshire Association for Psychodynamic Psychotherapy 1970s |
| BPS (IPA) | British Psychoanalytic Society (Institute of Psychoana lysis) 1913 |
|
BAP | British Association of Pyschotherapists 1951 |
| CPP | Centre for Psychoanalytic Psychotherapy 1979 |
| LINCOLN | The Lincoln Centre for Psychotherapy 1967 |
| LCP | The London Centre for Psychotherapy 1974 |
| NEATPP | Northern England Association for Training in Psycho analytic Psychotherapy 1992 |
|
SAP | The Society of Analytical Psychology 1936 |
| SAPP | The Scottish Association of Psychoanalytic Psychotherapists 1972 |
|
TAVI | The Tavistock Clinic 1920 |
| ACAT | Association for Cognitive Analytical Therapy 1980s |
| AHPP | Association for Humanistic Psychology Practitioners 1980s |
| BCPC | Bath Centre for Psychotherapy and Counselling 1990s |
| BPA | British Psychodrama Association 1984 |
| CCPE | Centre for Counselling and Psychotherapy Education 1984 |
| CTP | Centre for Transpersonal Psychology 1973 |
| CCBP | Chiron Centre for Body Psychotherapy 1983 |
| GLC | Gestalt Centre London 1980s |
| GPTI | Gestalt Psychotherapy Training Institute 1980s |
| GAPS | Guild of Analytical Psychology and Spirituality 1987 |
| IPS | Institute of Psychosynthesis 1975 |
| ITA | Institute of Transactional Analysis 1980s |
| IATE | Institute for Arts and Therapy in Education 1985 |
| KI | Karuna Institute 1982 |
| LAPP | London Association of Primal Psychotherapists 1986 |
| LSBP | London School of Biodynamic Psychotherapy 1970s |
| MET | Metanoia Institute 1980s |
| MC | Minster Centre 1978 |
| NGP | Northern Guild for Psychotherapy 1983 |
| PET | Psychosynthesis and Education Trust 1965 |
| RCSPC | Regents College School of Psychotherapy and Coun selling 1990s |
| REV | Revision 1988 |
| SCPTI | Scarborough Psychotherapy Training Institute 1990s |
| SPTI | Sherwood Psychotherapy Training 1988 |
| SPEC | Spectrum 1976 |