Music Directors of the world's Orchestras (2015)

Interesting to note-well I think it's interesting anyway ;D-the considerable number of conductors who "have" two orchestras:

MARIN ALSOP: Baltimore Symphony Orchestra (2007, contract extended to 2021) and Sao Paulo State Symphony Orchestra (2012, contract extended to 2019)

DANIELE GATTI: Orchestre National de France (2008) and Royal Concertgebouw Orchestra, Amsterdam (2016)

RICCARDO CHAILLY: Leipzig Gewandhaus Orchestra (2005, contrct to be terminated in 2016), La Scala Opera, Milan (2015, contract until 2022)

DENNIS RUSSELL DAVIES: Bruckner Orchestra, Linz (2002) and Basel Symphony Orchestra (2009, until 2016)

JOANN FALLETTA: Virgian Symphony Orchestra (1991) and Buffalo Philharmonic Orchestra (1999, contract extended until 2021)

IVAN FISCHER: Budapest Festival Orchestra (1983) and Konzerthausorchester, Berlin (2012, initial contract until 2016)

MICHAEL FRANCIS: Norrkoping Symphony Orchestra, Sweden (2012) and Florida Orchestra (2015)

VALERY GERGIEV: Mariinsky Opera, St. Petersburg (1988) and Munich Philharmonic Orchestra (2015)

DANIEL HARDING: Swedish Radio Symphony Orchestra (2007) and Orchestre de Paris (2016)

VLADIMIR JUROWSKI: London Philharmonic Orchestra (2007, contract etended until 2018) and State Academic Symphony Orchestra of Russia (2011)

CARLOS KALMAR: Oregon Symphony Orchestra (2003) and RTVE Symphony Orchestra, Spain (2011)

KIRILL KARABITS: Bournemouth Symphony Orchestra (2009) and Staatskapelle, Weimar (2016, initial contract until 2019)

MARKO LETONJA: Tasmanian Symphony Orchestra (2012) and Strasbourg Philharmonic Orchestra (2012)

KENT NAGANO: Montreal Symphony Orchestra (2006) and Hamburg State Opera/Philharmonic Orchestra (2015, contract until 2020)

ANDRIS NELSONS: Boston Symphony Orchestra (2014, contract until 2022) and Leipzig Gewandhaus Orchestra (from 2017, initial contract until 2022)

JONATHAN NOTT: Bamberg Symphony Orchestra (2000 until 2016), Tokyo Symphony Orchestra (2014, initial contract until 2017), and Suisse Romande Orchestra (2017)

YANNICK NEZET-SEGUIN: Rotterdam Philharmonic Orchestra (2008, contract to terminate in 2018) and Philadelphia Orchestra (2012, contract extended until 2022)

SAKARI ORAMO: Royal Stockholm Philharmonic Orchestra (2008, current contract until 2018) and B.B.C. Symphony Orchestra (2013)

PETER OUNDJIAN; Toronto Symphony Orchestra (2004, contract extended until 2017) and Royal Scottish National Orchestra (2012, contract until 2016)

SIR ANTION PAPPANO: Royal Opera House, Covent Garden (2002, current contract until 2017) and Santa Cecilia Orchestra, Rome (2005, contract until 2017)

KIRILL PETRENKO: Bavarian State Opera (2013, contract until 2018) and (?) Berlin Philharmonic Orchestra (2018?)

VASILY PETRENKO: Royal Liverpool Philharmonic Orchestra (2006) and Oslo Philharmonic Orchestra (2013, initial contract until 2017)

DAVID ROBERTSON: St. Louis Symphony Orchestra (2005, contract extended until 2018) and Sydney Symphony Orchestra (2014, initial contract until 2018)

LEONARD SLATKIN: Detroit Symphony Orchestra (2008) and Orchestre de Lyon (2011)

KRYSZTOF URBANSKI: Trondheim Symphony Orchestra (2010) and Indianapolis Symphony Orchestra (2011)

EDO DE WAART: Milwaukee Symphony Orchestra (2009, contract extended until 2017), Royal Flemish Philharmonic Orchestra (2011 until 2016) and New Zealand Symphony
Orchestra(2016)

JAAP VAN ZWEDEN: Dallas Symphony Orchestra (2008, contract extended until 2019) and Hong Kong Philharmonic Orchestra (2012, initial contract until 2016)

and then there is

TUGAN SOKHIEV: Orchestre du Capitole de Toulouse (2008), Deutsches Symphony Orchestra, Berlin (2012) and the Bolshoi Theatre, Moscow (2014, initial contract until
2018) but he is giving up the Deutsches SO in 2016.