This orchestra was named after a well known composer, Paul Constantinescu and with the help of various other conductors as Ion Baciu, George Petrescu, Eugen Pricope, Corneliu Dumbrăveanu, Alexandru Sumschi, Horia Andreescu, Cristian Brancuși, Emanuel Elenescu, Paul Popescu, Ovidiu Balan, Romeo Rambu, Ilarion Ionescu Galați, Radu Postavaru, they managed to establish this cultural centre in Ploiești.
Some of the names that had concerts in this hall: Igor Bezrodnii, Carlo Farina, Paavo Berglund, Renard Czajkovski, Michael Heize, Franco de Masi, Enzo Ferraris, Lee Sun Young, Maximino Zumalave, Daniil Safran, Li Ming Cean, Silvia Mercier, Viktor Eresko, Pavel Kogan, Ion Voicu, Stefan Ruha, Mihaela Martin, Lenuta Ciulei-Atanasiu, Gabriel Groitoru, Florin Croitoru, Valentin Gheorghiu, Dan Grigore, Mihaela Ursuleasa, Josu De Solaun Soto, and Marin Cazacu.
Ion Baciu held in Ploiesti, a prodigious activity: first auditions, musical internships for students in the county and national tournaments, demanding in choosing and shaping their musicians, involvement in community activities, which wrote some of its pages significant attachment to some local initiatives, which has struggled to transform the cultural facts.
The Ploiesti State Philharmonic Orchestra made concert tours in Germany, Luxembourg, Canada, Italy, France, South Korea, Holland, Belgium, Greece, Spain, Czech and other countries.
George Enescu's creations is in repertoire of Ploiesti Philharmonic Orchestra where he played both nationally and internationally with a deep respect for the great Romanian composer.