SELECT t1.organization_name FROM organizations AS t1 JOIN organization_contact_individuals AS t2 ON t1.organization_id  =  t2.organization_id GROUP BY t1.organization_name ORDER BY count(*) DESC LIMIT 1
SELECT t1.organization_name FROM organizations AS t1 JOIN organization_contact_individuals AS t2 ON t1.organization_id  =  t2.organization_id GROUP BY t1.organization_name ORDER BY count(*) DESC LIMIT 1 <table_name> : Organizations col : organization_id | date_formed | organization_name | uk_vat_number row 1 : 1 | 2016-08-24 23:52:48 | Labour Party | 2157 row 2 : 2 | 2016-10-01 12:42:01 | Plaid Cymru | 7459 row 3 : 3 | 2016-10-09 07:22:53 | Conservative | 1211 row 4 : 4 | 2017-04-06 23:59:16 | Liberal Democrats | 7237 row 5 : 5 | 2016-07-28 01:45:10 | Green Party | 4271 <table_name> : Organization_Contact_Individuals col : individual_id | organization_id | date_contact_from | date_contact_to row 1 : 13 | 1 | 2016-08-16 22:09:11 | 2018-03-25 10:27:18 row 2 : 11 | 1 | 2017-03-02 00:00:16 | 2018-03-06 05:39:43 row 3 : 10 | 3 | 2016-08-23 03:24:24 | 2018-03-12 07:55:28 row 4 : 10 | 4 | 2017-08-08 12:05:25 | 2018-03-04 09:30:20 row 5 : 13 | 3 | 2016-04-21 03:55:35 | 2018-03-06 21:22:49 row 6 : 5 | 4 | 2016-08-27 16:55:59 | 2018-03-18 05:47:36 row 7 : 9 | 1 | 2017-01-06 09:38:54 | 2018-02-27 09:20:42 row 8 : 11 | 5 | 2017-09-14 08:24:22 | 2018-03-24 16:54:36 row 9 : 13 | 2 | 2016-09-16 13:53:24 | 2018-03-18 16:33:16 row 10 : 6 | 3 | 2017-05-24 11:38:02 | 2018-03-24 03:43:00 row 11 : 6 | 5 | 2016-05-15 13:16:35 | 2018-03-05 19:29:24 row 12 : 7 | 2 | 2016-11-24 03:57:30 | 2018-03-07 16:40:29 row 13 : 14 | 5 | 2017-02-19 08:51:41 | 2018-03-23 22:06:48 row 14 : 9 | 2 | 2016-04-30 14:39:31 | 2018-03-20 00:33:08 row 15 : 8 | 3 | 2016-07-26 09:08:15 | 2018-03-02 03:50:51
col : organization_name row 1 : Conservative