This lists the 226 MEPs (out of 750) who Open Society Foundation consider to be "proven or likely Open Society allies".

Source: http://soros.dcleaks.com/download/?f=/Europe/OSI%20Brussel%20EU%20Advocacy%20calendar/European%20Elections/reliable%20allies%20in%20the%20european%20parliament%202014%202019.pdf&t=europe

EPP

ADAKTUSSON Lars (Sweden)
ALLIOT-MARIE Michèle (France)
BROK Elmar (Germany)
BUDA Daniel (Romania)
CADEC Alain (France)
COMODINI CACHIA Therese (Malta)
CORAZZA BILDT Anna Maria (Sweden)
DÍAZ DE MERA GARCÍA CONSUEGRA Agustín (Spain)
ENGEL Frank (Luxembourg)
ESTARÀS FERRAGUT Rosa (Spain)
FISAS AYXELA Santiago (Spain)
FJELLNER Christofer (Sweden)
GABRIEL Mariya (Bulgaria)
GRZYB Andrzej (Poland)
HAYES Brian (Ireland)
HÖKMARK Gunnar (Sweden)
JAZLOWIECKA Danuta (Poland)
KELLY Séan (Ireland)
KOVATCHEV Andrey (Bulgaria)
KOZLOWSKA-RAJEWICZ Agnieszka (Poland)
LAMASSOURE Alain (France)
MACOVEI Monica (Romania)
McGUINNESS Mairead (Ireland)
METSOLA Roberta (Malta)
MORIN-CHARTIER Elisabeth (France)
PIETIKÄINEN Sirpa (Finland)
PREDA Cristian Dan (Romania)
ROLIN Claude (Belgium)
SARVAMAA Petri (Finland)
THEOCHAROUS Eleni (Cyprus)
THUN UND HOHENSTEIN Róza Gräfin von (Poland)
VALEAN Adina-Ioana (Romania)
van NISTELROOIJ Lambert (Netherlands)
VIRKKUNEN Henna (Finland)
WEBER Renate (Romania)
WINKLER Iuliu (Romania)

S&D

ARENA Maria (Belgium)
BALAS Guillaume (France)
BAYET Hugues (Belgium)
BENIFEI Brando Maria (Italy)
BORZAN Biljana (Croatia)
BRANNEN Paul (United Kingdom)
COFFERATI Sergio Gaetano (Italy)
COZZOLINO Andrea (Italy)
CRETU Corina (Romania)
CRISTEA Andi-Lucian (Romania)
DALLI Miriam (Malta)
DANCE Seb (United Kingdom)
DE MONTE Isabella (Italy)
DELVAUX-STEHRES Mady (Luxembourg)
DODDS Anneliese (United Kingdom)
DRAGHICI Damian (Romania)
ERTUG Ismail (Germany)
FAJON Tanja (Slovenia)
FERREIRA Elisa (Portugal)
FLAŠÍKOVÁ BENOVÁ Monika (Slovakia)
FLECKENSTEIN Knut (Germany)
FREUND Eugen (Austria)
GARCÍA-PÉREZ Iratxe (Spain)
GARDIAZÁBAL RUBIAL Eider (Spain)
GEBHARDT Evelyne (Germany)
GENTILE Elena (Italy)
GERINGER de OEDENBERG Lidia Joanna (Poland)
GOMES Ana (Portugal)
GROOTE Matthias (Germany)
GUALTIERI Roberto (Italy)
GUERRERO SALOM Enrique (Spain)
GUILLAUME Sylvie (France)
GUTIÉRREZ PRIETO Sergio (Spain)
HOFFMANN Iris (Germany)
HOWITT Richard (United Kingdom)
IOTOVA Iliana (Bulgaria)
JONGERIUS Agnes (Netherlands)
KHAN Afzal (United Kingdom)
KIRTON-DARLING Jude (United Kingdom)
KREHL Constanze (Germany)
KUMPULA-NATRI Miapetra (Finland)
KYENGE Kashetu (Italy)
KYRKOS Miltiadis (Greece)
LANGE Bernd (Germany)
LEINEN Jo (Germany)
LIBERADZKI Boguslaw (Poland)
LÓPEZ AGUILAR Juan Fernando (Spain)
LUDVIGSSON Olle (Sweden)
MARTIN David (France)
MARTIN Édouard (United Kingdom)
McAVAN Linda (United Kingdom)
MOISA Ionel-Sorin (Romania)
MOODY Clare (United Kingdom)
MORAES Claude (United Kingdom)
MORGANO Luigi (Italy)
MOSCA Alessia Maria (Italy)
NEUSER Norbert (Germany)
NIEDERMÜLLER Péter (Hungary)
NILSSON Jens (Sweden)
PANZERI Pier Antonio (Italy)
PASCU Ioan Mircea (Romania)
PICULA Tonino (Croatia)
PIRI Kati (Netherlands)
PITTELLA Gianni (Italy)
POST Soraya (Sweden)
REGNER Evelyn (Austria)
REVAULT D'ALLONNES BONNEFOY Christine (France)
RODRIGUES Liliana (Portugal)
RODRIGUES Maria João (Portugal)
SCHLEIN Elena Ethel (Italy)
SCHULZ Martin (Germany)
SIMON Peter (Germany)
SIPPEL Birgit (Germany)
SMOLKOVÁ Monika (Slovakia)
STEINRUCK Jutta (Germany)
TARABELLA Marc (Belgium)
ULVSKOG Marita (Sweden)
VALENCIANO MARTÍNEZ-OROZCO Elena (Spain)
VAN BREMPT Kathleen (Belgium)
VIOTTI Daniele (Italy)
WEIDENHOLZER Josef (Austria)
ZALA Boris (Slovakia)

ECR

DEMESMAEKER Mark (Belgium)
KAMALL Syed (United Kingdom)
KARIM Sajjad (United Kingdom)
KIRKHOPE Timothy (United Kingdom)
McINTYRE Anthea (United Kingdom)
SWINBURNE Kay (United Kingdom)
TANNOCK Charles (United Kingdom)

ALDE

ALI Nedzhmi (Bulgaria)
AUŠTREVICIUS Petras (Lithuania)
BEARDER Catherine (United Kingdom)
BILBAO BARANDICA Izaskun (Spain)
CAVADA Jean-Marie (France)
DE SARNEZ Marielle (France)
DEPREZ Gérard (Belgium)
DLABAJOVÁ Martina (Czech Republic)
FEDERLEY Fredrick (Sweden)
GOERENS Charles (Luxembourg)
GOULARD Sylvie (France)
HARKIN Marian (Ireland)
HYUSMENOVA Filiz (Bulgaria)
in 't VELD Sophie (Netherlands)
JAKOVCIC Ivan (Croatia)
KALLAS Kaja (Estonia)
KYUCHYUK Ilhan (Bulgaria)
LAMBSDORFF Alexander Graf (Germany)
MAURA BARANDIARÁN Fernando (Spain)
MICHEL Louis (Belgium)
MIHAYLOVA Iskra (Bulgaria)
MLINAR Angelika (Austria)
NART Javier (Spain)
NEYTS-UYTTEBROECK Annemie (Belgium)
NICOLAI Norica (Romania)
PAGAZAURTUNDÚA RUIZ Maite (Spain)
RADOŠ Jozo (Croatia)
REHN Olli (Finland)
SCHAAKE Marietje (Netherlands)
TOOM Yana (Estonia)
TØRNÆS Ulla (Denmark)
TREMOSA i BALCELLS Ramon (Spain)
VAJGL Ivo (Slovenia)
van BAALEN Johannes Cornelis (Netherlands)
van NIEUWENHUIZEN Cora (Netherlands)
VÄYRYNEN Paavo (Finland)
VERHOFSTADT Guy (Belgium)
WIKSTRÖM Cecilia (Sweden)

GUE/NGL

ALBIOL GUZMÁN Marina (Spain)
ANDERSON Martina (United Kingdom)
BJÖRK Malin (Sweden)
BOYLAN Lynn (Ireland)
CHRYSOGONOS Kostas (Greece)
COUSO PERMUY Javier (Spain)
de JONG Dennis (Netherlands)
DE MASI Fabio (Germany)
ERNST Cornelia (Germany)
FERREIRA João (Portugal)
GLEZOS Emmanouil (Greece)
HADJIGEORGIOU Takis (Cyprus)
HÄNDEL Thomas (Germany)
IGLESIAS Pablo (Spain)
KARI Rina Ronja (Denmark)
KATROUGKALOS Georgios (Greece)
LÓPEZ Paloma (Spain)
LÖSING Sabine (Germany)
MAŠTÁLKA Jirí (Czech Republic)
MATIAS Marisa (Portugal)
MINEUR Anne-Marie (Netherlands)
OMARJEE Younous (France)
PAPADIMOULIS Dimitrios (Greece)
RODRIGUEZ-RUBIO VÁZQUEZ Tere (Spain)
SAKORAFA Sofia (Greece)
SÁNCHEZ CALDENTEY Lola (Spain)
SCHOLZ Helmut (Germany)
SPINELLI Barbara (Italy)
SYLIKIOTIS Neoklis (Cyprus)
VALLINA Ángela (Spain)
VERGIAT Marie-Christine (France)
VIEGAS Miguel (Portugal)
ZIMMER Gabriele (Germany)
ZUBER Inês Cristina (Portugal)

Greens/EFA

ALBRECHT Jan Philipp (Germany)
AUKEN Margrete (Denmark)
BUCHNER Klaus (Germany)
CEBALLOS Bodil (Sweden)
CRAMER Michael (Germany)
DELLI Karima (France)
ERIKSSON Peter (Sweden)
GIEGOLD Sven (Germany)
HARMS Rebecca (Germany)
HAUTALA Heidi (Finland)
HEUBUCH Maria (Germany)
JADOT Yannick (France)
JOLY Eva (France)
KELLER Franziska (Germany)
LAMBERT Jean (United Kingdom)
LAMBERTS Philippe (Belgium)
LOCHBIHLER Barbara (Germany)
LUNACEK Ulrike (Austria)
MESZERICS Tamás (Hungary)
REDA Julia (Germany)
REIMON Michel (Austria)
REINTKE Terry (Germany)
SARGENTINI Judith (Netherlands)
SCOTT CATO Molly (United Kingdom)
SEBASTIÀ Jordi (Spain)
ŠKRLEC Davor (Croatia)
TERRICABRAS Josep-Maria (Spain)
URTASUN Ernest (Spain)
VANA Monika (Austria)