| Year | Province | Organization - Leader | |
| 1899 | Yala, Phatthalung | Cambridge University - W. Skeat | REPORT |
| 1901 | Yala, Trang | Edinburgh & Liverpool Universities - T.N. Annandale | REPORT |
| 1916 | Tak | F. Lupša | REPORT |
| 1916 | Yala, Phatthalung, Songkhla | T.N. Annandale | report |
| 1931 | Chiang Mai, Chiang Rai, Ratchaburi, Lopburi | F. Sarasin | REPORT |
| 1955 October | Kanchanaburi | National Museum/Harvard University - K. Heider | REPORT |
| 1955 November | Kanchanaburi | National Museum/Harvard University - K. Heider | REPORT |
| 1960 | Kanchanaburi | Thai-Danish Pre-historic Expedition - E. Nielsen | REPORT |
| 1961 January-February | Kanchanaburi | Thai-Danish Pre-historic Expedition - E. Nielsen | REPORT |
| 1961 November-1962 April | Kanchanaburi | Thai-Danish Pre-historic Expedition - E. Nielsen | REPORT |
| 1965-1966 | Kanchanaburi | Danish-Thai archaeological expedition | no report |
| 1971 | Chiang Mai, Kanchanaburi, Ratchaburi, Phetchaburi | Shining Mountains Grotto - M. Kaczamarek | REPORT |
| 1973-1978 | Throughout Thailand | H. Kusch | REPORT REPORT REPORT REPORT |
| 1978 | Kanchanaburi | ERE del CECTilkiler Dudeni - M. Ubach i Tarres | REPORT |
| 1980-1981 | Chiang Mai, Lampang | Association Pyrénéenne de Spéléologie - L. Deharveng | REPORT |
| 1981 | Chiang Mai | Speleoklub Morski PTTK - C. Parma | no report |
| 1981-1982 | Kanchanaburi, Uthai Thani, Chiang Mai, Lampang, Krabi, Phang Nga | J. Dunkley | no report |
| 1983 | Mae Hong Son, Chiang Mai | Australian expedition - J. Dunkley | REPORT |
| 1983-1984 | Chiang Mai | Thailand Karst Hydrologic Survey - R. Rigg | no report |
| 1984 January | Mae Hong Son | Australian expedition - J. Dunkley | REPORT |
| 1984 May | Mae Hong Son | Australian expedition - J. Dunkley | REPORT |
| 1984 December | Chumphon, Ratchaburi, Kanchanaburi | J. Dunkley | no report |
| 1985 | Mae Hong Son | Australian expedition - J. Dunkley | REPORT |
| 1985 | Mae Hong Son, Chiang Mai, Phang Nga, Lampang | Association Pyrénéenne de Spéléologie - L. Deharveng | REPORT |
| 1985 | Phang Nga, Chumphon, Kanchanaburi | Cerberus Speleological Society - L. Price | report |
| 1986 | Kanchanaburi | Groupe Spéléo Scientifique et Sportif, Perigueux - J.M. Ostermann | REPORT |
| 1986 | Phuket, Krabi, Phang Nga | J. Brush | report |
| 1986 | Mae Hong Son, Kanchanaburi, Phuket, Krabi, Phang Nga | Australian expedition - J. Dunkley | REPORT |
| 1986 | Chiang Mai | Alpinistyczny Klub Eksploracyjny w Sopocie - C. Parma | no report |
| 1986 | Phang Nga, Kanchanaburi, Chiang Rai, Mae Hong Son | Association Pyrénéenne de Spéléologie - L. Deharveng | REPORT |
| 1986 | Phang Nga, Phetchaburi, Chiang Mai | Cerberus Spelaeological Society - L. Price | report |
| 1986 | Chiang Mai, Mae Hong Son, Krabi | T. White | report |
| 1987 January-March | Chiang Mai | Alpinistyczny Klub Eksploracyjny w Sopocie - C. Parma | report |
| 1987 | Kanchanaburi, Mae Hong Son | Bristol Exploration Club - G. Wilton-Jones | REPORT |
| 1987 | Throughout Thailand | Association Pyrénéenne de Spéléologie - L. Deharveng | REPORT |
| 1987 December | Chiang Mai | Alpinistyczny Klub Eksploracyjny w Sopocie - C. Parma | report |
| 1987 | Phang Nga, Krabi, Phetchaburi, Kanchanaburi | Cascade Grotto - W. Halliday | REPORT |
| 1988 | Kanchanaburi | Groupe Spéléo Scientifique et Sportif, Perigueux - F. Roche | REPORT |
| 1988 | Chiang Rai, Mae Hong Son | Maison des Gouffres, Herran - L. Maffre | REPORT |
| 1988 | Mae Hong Son, Krabi, Phetchaburi, Prachuap Khiri Khan, Trang, Satun | Australian expedition - J. Dunkley | no report |
| 1988 | Mae Hong Son | Cerberus Spelaeological Society - L. Price | report |
| 1988 | Krabi, Phang Nga, Prachuap Khiri Khan | D. Gebauer | report |
| 1988 | Chiang Mai | Krakowski Klub Taternictwa Jaskiniowego | no report |
| 1989 | Phitsanulok, Loei, Nong Bua Lam Phu | J. Dunkley | no report |
| 1989 | Chaiyaphum | D. Checkley | report |
| 1989 | Nan | Association Pyrénéenne de Spéléologie - L. Deharveng | no report |
| 1989 | Krabi, Phang Nga | Speleo Club de la MJC Bellegarde - T. Tournier | REPORT |
| 1989-1990 | Satun, Kanchanaburi, Prachuap Khiri Khan | New Zealand Speleological Society - I. McGregor | no report |
| 1990 | Mae Hong Son, Kanchanaburi | Australian expedition - N. Anderson | no report |
| 1990 | Kanchanaburi | Société Spéléologique de l'Ariège-Pays d'Olmes - J.-F. Vacquie | REPORT |
| 1991 | Prachuap Khiri Khan, Yala | Association Pyrénéenne de Spéléologie - P. Leclerc | no report |
| 1991 | Mae Hong Son | Société Spéléologique de l'Ariège-Pays d'Olmes - L. Apel | no report |
| 1991 | Mae Hong Son | B. Stinglhamber | no report |
| 1991-1992 | Chonburi, Kanchanaburi | Oxford University Caving Club - M. Bown | report |
| 1992 | Nan, Loei | Association Pyrénéenne de Spéléologie - L. Deharveng | no report |
| 1992 | Mae Hong Son | Gruppo Speleologico Opitergino CAI Oderzo - E. Anzanello | REPORT |
| 1992 | Krabi | C. Vesely | report |
| 1992 | Phetchabun | Manchester University Speleological Association/Sheffield University Speleological Society - N. Standing | report |
| 1992 | Mae Hong Son | Australian expedition - N. Anderson | no report |
| 1992 | Kanchanaburi | Combined Services Caving Association - R. Smith | report |
| 1992 | Ratchaburi, Phetchaburi | C. Mouret | no report |
| 1993 | Mae Hong Son | Gruppo Speleologico Opitergino CAI Oderzo - E. Anzanello | report |
| 1993 | Lampang, Kanchanaburi, Satun, Krabi, Phang Nga, Phetchaburi | Ostschweizerischen Gesellschaft fur Hohlenforschung - A. Vetterli | report |
| 1993 | Mae Hong Son, Chaiyaphum | D, Smart | no report |
| 1993 | Yala | L. Price | report |
| 1993-1994 | Trang | D. Gebauer | report |
| 1993-1994 | Chaiyaphum, Akon Nakhon, Ubon Ratchathani | C. Mouret | report |
| 1994 | Mae Hong Son | B. Stinglhamber | no report |
| 1994 | Surat Thani, Ratchaburi, Nakhon Ratchasima | Société Spéléologique de l'Ariège-Pays d'Olmes - P. Jarlan | REPORT |
| 1994 | Mae Hong Son | M. Costlett | no report |
| 1995 | Tak | Gruppo Speleologico Opitergino CAI Oderzo - E. Anzanello | report |
| 1995 April | Mae Hong Son | D. Smart | no report |
| 1995 July | Kanchanaburi | Royal Forest Department - D. Smart | report |
| 1995 August | Kanchanaburi | Royal Forest Department - D. Smart | report |
| 1995 September | Uthai Thani | Royal Forest Department - D. Smart | report |
| 1995 October | Kanchanaburi | Royal Forest Department - D. Smart | report |
| 1995 November | Kanchanaburi | Royal Forest Department - D. Smart | report |
| 1995 December | Kanchanaburi | Royal Forest Department - D. Smart | report |
| 1996 January | Sukhothai | Royal Forest Department - D. Smart | report |
| 1996 | Mae Hong Son, Kanchanaburi | New York University - R. Borowsky | no report |
| 1996 | Kanchanaburi | Canberra Speleological Society - N. Naksahit & J. Brush | report |
| 1996 June | Sukhothai | Royal Forest Department - D. Smart | report |
| 1996 July | Prachuap Khiri Khan | Royal Forest Department - D. Smart | report |
| 1996 August | Sukhothai | Royal Forest Department - D. Smart | report |
| 1996 December | Kanchanaburi | Royal Forest Department - D. Smart | report |
| 1997 | Mae Hong Son | M. Foakes | report |
| 1997 | Mae Hong Son | New York University - R. Borowsky | report |
| 1997 April | Tak | Royal Forest Department - D. Smart | report |
| 1997 April | Kanchanaburi | Royal Forest Department - D. Smart | report |
| 1997 | Phitsanulok, Sukhothai, Kanchanaburi | Canberra Speleological Society - N. Naksahit & D. Smart | REPORT |
| 1997 May | Kanchanaburi | Royal Forest Department - D. Smart | report |
| 1998 | Surat Thani | Bristol Exploration Club - R. Harper | REPORT |
| 1998 | Kanchanaburi, Chumphon, Phang Nga | New York University - R. Borowsky | report |
| 1998 | Mae Hong Son | M. Cosslett | no report |
| 1998 April | Phitsanulok | Royal Forest Department - D. Smart | report |
| 1998 | Surat Thani | Société Spéléologique de l'Ariège-Pays d'Olmes - P. Jarlan | REPORT |
| 1998 August | Saraburi | Royal Forest Department - D. Smart | no report |
| 1998 November | Tak | Royal Forest Department - D. Smart | report |
| 1998 | Sa Kaeo | Flittermouse Grotto - S. Smith | report |
| 1999 | Mae Hong Son, Kanchanaburi | New York University - R. Borowsky | no report |
| 1999 January | Tak | Royal Forest Department - D. Smart | report |
| 1999 February | Tak | Royal Forest Department - D. Smart | report |
| 1999 March | Kanchanaburi | Royal Forest Department - D. Smart | no report |
| 1999 May | Tak | Royal Forest Department - D. Smart | report |
| 1999 August | Tak | Royal Forest Department - D. Smart | report |
| 1999 December | Tak, Phitsanulok | Royal Forest Department - D. Smart | report |
| 2000 | Chaiyaphum | Shepton Mallet Caving Club - D. Barrett | REPORT |
| 2000 | Yala | Axbridge Caving Group - A. Gray | REPORT |
| 2000 | Chaiyaphum, Mae Hong Son | New York University - R. Borowsky | report |
| 2000 | Nakhon Ratchasima | Virginia Speleological Survey - M. Futrell | report |
| 2000-2001 | Chiang Mai | University of Bristol Spelaeological Society | REPORT |
| 2000-2001 | Tak | Shepton Mallet Caving Club - D. Barrett | REPORT |
| 2000-2001 | Yala, Satun, Phattalung | Axbridge Caving Group - A. Gray | REPORT |
| 2001 April | Phang Nga, Chumphon | Royal Forest Department - D. Smart | report |
| 2001 April | Tak | Royal Forest Department - D. Smart | report |
| 2001 | Kanchanaburi | Royal Forest Department - A. Sorn-ek | no report |
| 2001 | Nakhon Si Thammarat | Cave Divers Association of Thailand - J.H. Park | no report |
| 2001 | Lamphun, Chiang Mai, Tak | Bristol Exploration Club - R. Harper | report |
| 2002 | Tak | Shepton Mallet Caving Club - D. Barrett | REPORT |
| 2002 March | Phang Nga, Nakhon Sri Thammarat, Phattalung, Trang, Satun | Royal Forest Department - D. Smart | report |
| 2002 April | Kanchanaburi | Royal Forest Department - D. Smart | report |
| 2002 August | Phitsanulok | Royal Forest Department - D. Smart | report |
| 2002 | Krabi, Phitsanulok | Orpheus Caving Club - S. Brooks | no report |
| 2003 | Mae Hong Son | M. Cosslett | no report |
| 2003 | Mae Hong Son | New York University - R. Borowsky | no report |
| 2003 January | Phitsanulok | Royal Forest Department - D. Smart | no report |
| 2003 | Tak | Shepton Mallet Caving Club - D. Barrett | REPORT |
| 2003 April | Kanchanaburi | Royal Forest Department - D. Smart | report |
| 2003 May | Phitsanulok | Royal Forest Department - D. Smart | no report |
| 2003 | Tak, Uthai Thani | Société Spéléologique de l'Ariège-Pays d'Olmes - P. Jarlan | no report |
| 2003 November | Kanchanaburi | Royal Forest Department - D. Smart | no report |
| 2003 | Chiang Mai | University of Bristol Spelaeological Society - S. Smith | REPORT |
| 2003-2004 | Phetchabun | Shepton Mallet Caving Club - M. Ellis | REPORT |
| 2004 March | Tak, Kanchanaburi | Royal Forest Department - D. Smart | no report |
| 2004 | Phitsanulok | Canberra Speleological Society - T. Bolger | no report |
| 2004 | Phetchabun | Shepton Mallet Caving Club - M. Ellis | REPORT |
| 2004 | Krabi, Phitsanulok | Orpheus Caving Club - S. Brooks | no report |
| 2004-2005 | Phetchabun | Shepton Mallet Caving Club - M. Ellis | REPORT |
| 2005 | Lampang, Chiang Mai, Chiang Rai, Nan | Royal Forest Department - D. Smart | no report |
| 2005 | Krabi, Surat Thani | Asian Cave Diving Club - C. Verdier | no report |
| 2005-2006 | Phetchabun, Chaiyaphum | Shepton Mallet Caving Club - M. Ellis | REPORT |
| 2006 | Krabi | Asian Cave Diving Club - C. Verdier | no report |
| 2006 | Ubon Ratchathani | Clubul de Speologie "Z" - L. Valenas | no report |
| 2007 January | Nakhon Si Thammarat | Asian Cave Diving Club - C. Verdier | no report |
| 2007 February | Krabi | Asian Cave Diving Club - C. Verdier | no report |
| 2007-2008 | Krabi, Phang Nga | Cave Diving Group - A. Fletcher | report |
| 2008 | Nan, Chiang Mai | Société Spéléologique de l'Ariège-Pays d'Olmes - P. Jarlan | REPORT |
| 2008 | Chiang Mai | Chiang Mai Rock Climbing Adventures - J. Morris | no report |
| 2008-2009 | Throughout Thailand | T. Tournier | REPORT |
| 2009 | Nan | Shepton Mallet Caving Club - P. Dummer | REPORT |
| 2009 April | Chiang Mai | Chiang Mai Rock Climbing Adventures - J. Morris | no report |
| 2009 October | Chiang Mai | Chiang Mai Rock Climbing Adventures - J. Morris | no report |
| 2009 | Krabi | Orpheus Caving Club - S. Brooks | no report |
| 2009-2010 | Throughout Thailand | T. Tournier | report |
| 2010 | Nan | Shepton Mallet Caving Club - P. Dummer | REPORT |
| 2010 | Chiang Mai | Chiang Mai Rock Climbing Adventures - J. Morris | no report |
| 2010 | Phetchabun, Chaiyaphum, Phitsanulok | Cave Diving Group - A. Fletcher | report |
| 2010-2011 | Chiang Mai, Chiang Rai, Lamphun, Phang Nga | T. Tournier | report |
| 2011 | Chiang Mai | Chiang Mai Rock Climbing Adventures - J. Morris | no report |
| 2012 | Nan | Shepton Mallet Caving Club - P. Dummer | REPORT |
| 2012 April | Lopburi, Phetchabun, Phitsanulok | A. Thoma | report |
| 2012 | Chiang Mai | Chiang Mai Rock Climbing Adventures - J. Morris | no report |
| 2012 | Loei, Chaiyaphum | Ban's Technical Diving - C. Werger | no report |
| 2012 | Nakhon Si Thammarat | Sewanee Mountain Grotto/Deadwood City Grotto - P. Ashwell | no report |
| 2012 September | Lopburi, Saraburi, Loei | A. Thoma | report |
| 2013 | Krabi | Shepton Mallet Caving Club - P. Dummer | report |
| 2013 | Chiang Mai | Chiang Mai Rock Climbing Adventures - J. Morris | no report |
| 2013 | Nan | Shepton Mallet Caving Club - M. Ellis | REPORT |
| 2013 April | Lopburi, Saraburi, Loei | A. Thoma | report |
| 2013 September | Lopburi, Saraburi, Phetchabun, Phitsanulok, Loei | A. Thoma | report |
| 2013 | Nong Khai, Kalasin, Ubon Ratchathani | J. Dunkley | no report |
| 2014 | Nan | Shepton Mallet Caving Club - P. Dummer | REPORT |
| 2014 | Phetchabun, Phitsanulok, Lopburi, Saraburi, Loei | A. Thoma | no report |
| 2014 | Lamphun | T. Tournier | report |
| 2014-2015 | Prachuap Khiri Khan, Chumphon | Krasnoyarsk Territory Cavers Club - E. Prokopev | no report |
| 2015 | Nan | R. Harper | REPORT |
| 2015 | Loei, Chiang Mai | SpeleoDAO15 - J. Gosset | REPORT |
| 2015 | Nan | Shepton Mallet Caving Club - P. Collett | REPORT |
| 2015 | Ubon Ratchathani | Clubul de Speologie "Z" - L. Valenas | no report |
| 2015 | Chiang Mai | Chiang Mai Rock Climbing Adventures - J. Morris | no report |
| 2015 | Phetchabun | A. Thoma | no report |
| 2015 | Lamphun | T. Tournier | report |
| 2015-2016 | Prachuap Khiri Khan, Chumphon | Krasnoyarsk Territory Cavers Club - E. Prokopev | no report |
| 2015-2016 | Krabi | Krabi Family Expedition - I. Furlong | REPORT |
| 2016 | Nan | Shepton Mallet Caving Club - P. Dummer | REPORT |
| 2016 | Ubon Ratchathani | Clubul de Speologie "Z" - L. Valenas | report |
| 2016 | Chiang Mai | SpeleoDAO16 - J. Gosset | REPORT |
| 2016 | Phetchabun, Loei | A. Thoma | no report |
| 2016-2017 | Chumphon | Krasnoyarsk Territory Cavers Club - E. Prokopev | no report |
| 2017 | Chiang Mai | SpeleoDAO17 - J. Gosset | REPORT |
| 2017 | Ubon Ratchathani, Amnat Charoen | Clubul de Speologie "Z" - L. Valenas | report |
| 2017 | Satun | Mahasiswa Pencinta Alam Universitas Gadjah Mada | report |
| 2017 | Kanchanaburi | Expédition Khaophuthong Khaothakhanun - D. Rateau | no report |
| 2017-2018 | Krabi | Krabi Family Expedition - I. Furlong | REPORT |
| 2018 | Phitsanulok, Phetchabun | Shepton Mallet Caving Club - P. Dummer | REPORT |
| 2018 | Kanchanaburi | Expédition Khaophuthong Khaothakhanun - D. Rateau | no report |
| 2018 | Mukdahan, Ubon Ratchathani | Clubul de Speologie "Z" - L. Valenas | report |
| 2018-2019 | Kanchanaburi, Chiang Mai, Lamphun, Lampang, Mae Hong Son, Chiang Rai | Expédition Khaophuthong Khaothakhanun - D. Rateau | REPORT |
| 2019 | Chiang Mai | SpeleoDAO19 - J. Gosset | REPORT |
| 2019 | Mukdahan, Ubon Ratchathani | Clubul de Speologie "Z" - L. Valenas | report |
| 2019 | Phang Nga, Krabi, Trang, Satun | R. Gardner | no report |
| 2019 | Nan, Chiang Rai | R. Harper | no report |
| 2019 | Nan | Department of National Parks - M. Ellis | REPORT |
| 2019 | Chiang Rai, Mae Hong Son | Midlands Cave Rescue Organisation - E. Porter | no report |
| 2019 | Krabi, Trang | Midlands Cave Rescue Organisation - E. Porter | no report |
| 2019-2020 | Krabi | Krabi Family Expedition - I. Furlong | no report |
| 2019-2020 | Kanchanaburi, Lampang | Expédition Khaophuthong Khaothakhanun - D. Rateau | REPORT |
| 2020 | Surat Thani | Thailand International Caving Expedition - M. Laumanns | REPORT |
| 2020 | Mukdahan, Ubon Ratchathani | Clubul de Speologie "Z" - L. Valenas | report |
| 2020 | Chiang Mai | SpeleoDAO20 - J. Gosset | REPORT |
| 2020 | Chiang Mai | Shepton Mallet Caving Club/Chiang Mai Rock Climbing Adventures - P. Dummer/J. Morris | REPORT |
| 2021 | Chiang Rai | Chiang Mai Rock Climbing Adventures - J. Morris | no report |
| 2021 | Chiang Mai | Chiang Mai Rock Climbing Adventures - J. Morris | no report |
| 2022 | Kanchanaburi | Expédition Khaophuthong Khaothakhanun - D. Rateau | REPORT |
| 2022 | Chiang Mai | Chiang Mai Rock Climbing Adventures - J. Morris | no report |
| 2023 | Kanchanaburi | Expédition Khaophuthong Khaothakhanun - D. Rateau | no report |
| 2023 | Nan, Chaiyaphum | Cave Diving Group - M. Foyle | REPORT |
| 2023 | Chiang Rai, Chiang Mai | Cave Diving Group - J. Volanthen & C. Jewell | report |
| 2023 | Nong Khai/Sakon Nakhon/Ubon Ratchathani | Clubul de Speologie "Z" - L. Valenas | report |
| 2023 | Mae Hong Son | Expedition NEUA 2023 - J. Gosset | REPORT |
| 2024 | Kanchanaburi | Expédition Khaophuthong Khaothakhanun - D. Rateau | no report |
| 2024 | Nong Khai/Sakon Nakhon/Ubon Ratchathani | Clubul de Speologie Z - L. Valenas | |
| 2024 | Chiang Mai | Shepton Mallet Caving Club - E. Porter | |
| 2024 | Chaiyaphum/Loei | Cave Diving Group - M. Foyle |