More than 260 Orchestra worldwide rely on OPAS to work efficiently and reduce error!

"We had a seminar in Lapland this mon-tues with all the Finnish music librarians and got to discuss about OPAS too, everyone who has this software already and been working with it for several years are very satisfied."

Essi Kinnunen Music Librarian,
Lahti Symphony Orchestra

"Every time I come up with something where I ask myself, 'I wonder if OPAS can do that?', it takes about two minutes and I find that sure enough, it's already there ..."

Jeffery Sells Director of Artistic & Orchestra,
Operations | Pacific Symphony

"Always a pleasure to work with you, everything is always solved very fast and professional, compliments to you all!"

Michiel Westhof Personnel Manager,
Bergen Philharmonic Orchestra

  • Australian Brandenburg Orchestra Edgecliff
    Australian Chamber Orchestra Royal Exchange
    Queensland Conservatorium Griffith University South Brisbane
    Sydney Conservatorium of Music Sydney
    Sydney Philharmonia Choirs Sydney
    Sydney Symphony Sydney
    Queensland Symphony Orchestra Brisbane
    West Australian Symphony Perth
    Willoughby Symphony Orchestra Willoughby

  • Belgium

    Brussels Philharmonic Brussels
    Orchestre National de Belique Brussels
    Orchestre Philharmonique Royal de Liège Liège
    Orchestre Royal de Chambre de Wallonie Mons



    Aalborg Symfonieorkester Aalborg
    Aarhus Symfoniorkester Aarhus C
    Copenhagen Phil / Tivoli Symphony Orchestra Copenhagen
    DR Danish National Choir Copenhagen
    DR Danish National Girls Choir Copenhagen
    DR Danish National Symphony Orchestra Copenhagen
    DR Big Bandet Copenhagen
    DR Koorskolen Copenhagen
    Ensemble MidtVest Herning
    Esbjerg Ensemble Esbjerg
    Musikkens Hus Aalborg
    Odense Symfoniorkester Odense
    S√łnderjyllands Symfoniorkester S√łnderborg



    Bamberg Symphony Orchestra Bamberg
    Beethoven Orchestra Bonn
    Berlin Philharmonic Orchestra Berlin
    Bavarian Radio Choir Munich
    German Radio Philharmonic Orchestra Saarbr√ľcken Kaiserslautern Saarbr√ľcken
    German State Philharmonic Orchestra Rhineland-Palatinate Ludwigshafen on the Rhine
    German Symphony Orchestra Berlin Berlin
    Dresden Philharmonic Orchestra Dresden
    Duisburg Philharmonic Orchestra Duisburg
    Elbland Philharmonic Orchestra Saxony Riesa
    Göttingen Symphony Orchestra Göttingen
    Hessian Radio Big Band Frankfurt on the Main
    Hessian Radio Symphony Orchestra Frankfurt on the Main
    Jena Philharmonic Orchestra Jena
    Potsdam Chamber Academy Potsdam
    Ludwigsburg Palace Festival Ludwigsburg
    Munich Philharmonic Orchestra Munich
    NDR Radiophilharmonie Hamburg
    NDR Symphony Orchestra Hamburg
    New Philharmonic Orchestra of Westphalia Recklinghausen
    Lower Rhine Symphony Orchestra Mönchengladbach
    Nuremberg Symphony Orchestra Nuremberg
    Frankfurt Opera Frankfurt on the Main
    Leipzig Opera Leipzig
    Orchestra Jakobsplatz Munich Munich
    Philharmonic Orchestra of South Westphalia Hilchenbach
    Hamburg Philharmonic Orchestra Hamburg
    Philharmonic State Orchestra Mainz Mainz
    RIAS Chamber Choir Berlin
    Rundfunkchor Berlin Berlin
    Radio Symphony Orchestra Frankfurt on the Main
    Radio Symphony Orchestra Berlin Berlin
    Saxon State Opera Dresden Dresden
    Wuppertal Symphony Orchestra Wuppertal
    Sorbian National Ensemble Bautzen
    State Orchestra Rheinische Philharmonie Koblenz
    Stuttgart Chamber Orchestra Stuttgart
    Stuttgart Philharmonic Orchestra Stuttgart
    Southwest German Philharmonic Orchestra Constance Constance
    SWR Symphony Orchestra Stuttgart
    Theatre L√ľbeck L√ľbeck
    Halle Theatre, Opera and Orchestra Hall
    Theatre and Philharmonic Hall Essen GmbH Food
    WDR Symphony Orchestra Cologne Cologne
    W√ľrth Philharmonic Orchestra K√ľnzelsau
    W√ľrttemberg Philharmonic Orchestra Reutlingen Reutlingen
    W√ľrttemberg Chamber Orchestra Heilbronn Heilbronn



    Finnish National Opera Helsinki
    Finnish Radio Symphony Orchestra Helsinki
    Helsinki Philharmonic Orchestra Helsinki
    Jyväskylä Sinfonia Jyväskylä
    Kuopion Kaupunginorkesteri Kuopio
    Lahti Symphony Orchestra Lahti
    Tampere Filharmonia Tampere
    Tapiola Sinfonietta Espoo
    Turun Filharmoninen Orkesteri Turku


    ChŇďur de Radio France Paris
    Ma√ģtrise de Radio France Paris
    Orchestre de Chambre de Paris Paris
    Orchestre d'Auvergne
    Orchestre de Paris Paris
    Orchestre National de France Paris
    Orchestre National de Lille Lille
    Orchestre Philharmonique de Monte-Carlo Monte Carlo
    Orchestre Philharmonique de Radio France Paris
    Orchestre Philharmonique de Strasbourg Strasbourg


    Koninklijk Concertgebouworkest Amsterdam
    Radio Filharmonic Orchestra Hilversum
    Groot Omroepkoor Hilversum
    Phion Arnhem/Enschede
    Rotterdams Philharmonisch Orkest Rotterdam
    Het BalletorkestAmsterdam
    Netherlands Philharmonic OrchestraAmsterdam
    Nederlands KamerorkestAmsterdam
    Philharmonie Zuidnederland Eindhoven/Maastricht
    Noord Nederlands Orkest Groningen
    Ministerie van Defensie: The Hague

    Metropolis Orkest Hilversum
    Koninklijke Militaire Kapel 'Johan Willem Friso'
    Kapel van de Koninklijke Luchtmacht
    Koninklijke Marine Naval Chapel
    Tamboers en Pijpers van het Korps Mariniers
    Regimental Fanfare 'Garde Grenadiers en Jagers
    Trumpet Corps of the Koninklijke Marechaussee
    Fanfare van het Korps Nationale Reserve
    Fanfare 'Bereden Wapens
    Het Residentieorkest The Hague
    André Rieu Productions Maastricht


    Bergen Philharmonic Orchestra Bergen
    Oslo Filharmonics Oslo
    Stavanger Symfoniorkester Stavanger
    Trondheim Solistene Trondheim



    Stage Baden Baden
    Camerata SalzburgSalzburg
    Grafenegg Kulturbetriebsgesellschaft m.b.H. Grafenegg
    Orchestra Vienna Academy Vienna
    Tyrolean Symphony Orchestra Innsbruck
    Tonk√ľnstler Orchestra of Lower Austria St P√∂lten



    Fundação Calouste Gulbenkian Lisbon



    Gothenburg Symphony Orchestra Gothenburg
    Helsingborgs Symfoniorkester Helsingborg
    Lansmusiken √Ėrebro AB √Ėrebro
    Norrköpings Symfoniorkester Norrköping
    Swedish Radio Symphony Orchestra Stockholm



    La Cetra Baroque Orchestra Basel Basel
    Musikkollegium Winterthur Winterthur
    Orchestra della Svizzera Italiana Lugano
    Orchestre de Chambre de Genève Geneva
    Orchestre de Chambre de Lausanne Lausanne
    Orchestre de la Suisse Romande Geneva
    Zurich Opera House Zurich
    Basel Symphony Orchestra Basel
    Tonhalle Orchestra Zurich
    Zurich Chamber Orchestra Zurich



    Bilbao Orkestra Sinfonikoa Bilbao
    Euskadiko Orkestra - Basque National Orchestra Basque Country
    Orquesta de Filarmónica de Gran Canaria Las Palmas
    Orquesta Sinfónica de Navarra Pamplona
    Orquesta Sinfónica del Principado de Asturias Oviedo
    Orquestra Simfónica de Barcelona i Nacional de Catalunya Barcelona
    Real Filharmonía de Galicia Santiago de Compostela
    Orquesta y Coro Nacional de Espana Madrid

  • Calgary Philharmonic Orchestra Calgary, AB
    Edmonton Symphony Orchestra Edmonton, AB
    Kitchener-Waterloo Symphony Kitchener-Waterloo, ON
    National Arts Centre Orchestra Ottawa, ON
    Orchestre Symphonyie de Québec Québec City, QC
    Regina Symphony Regina, SK
    Tafelmusik Baroque Orchestra Toronto, ON
    Toronto Symphony Toronto, ON
    Symphony Nova Scotia Halfifax, NS
    Windsor Symphony Windsor, ON
    Winnipeg Symphony Orchestra Winnipeg, MB

  • Alabama Symphony Orchestra Mobile, AL
    Allentown Symphony Orchestra Allentown, PA
    Arkansas Symphony Orchestra Little Rock, AR
    Atlanta Symphony Orchestra Atlanta, GA
    Boston Philharmonic Boston, MA
    Boston Symphony Orchestra / Tanglewood Music Center Boston, MA
    Buffalo Philharmonic Buffalo, NY
    Canton Symphony Orchestra Canton, OH
    Caramoor Music Festival Katonah, NY
    Carnegie Hall Archives and Museum New York, NY
    Chattanooga Symphony and Opera Chattanooga, TN
    Cincinnati Symphony Orchestra Cincinnati, OH
    Columbus Symphony Orchestra Columbus, OH
    Curtis Institute of Music Philadelphia, PA
    Dallas Symphony Orchestra Dallas, TX
    Delaware Symphony Orchestra Wilmington, DE
    Detroit Symphony Orchestra Detroit, MI
    Elgin Symphony Orchestra Elgin, IN
    Fort Wayne Philharmonic Ft. Wayne, IN
    Grand Rapids Symphony Grand Rapids, MI
    Grand Teton Music Festival Jackson Hole, WY
    Grant Park Music Festival Chicago, IL
    Handel+Haydn Society Boston, MA
    Hartford Symphony Orchestra Hartford, CT
    Houston Symphony Houston, TX
    Indianapolis Symphony Orchestra Indianapolis, IN
    Jacksonville Symphony Jacksonville, FL
    Kansas City Symphony Kansas City, MO
    Los Angeles Opera Orchestra Los Angeles, CA
    Los Angeles Philharmonic Los Angeles, CA
    Louisiana Philharmonic Orchestra New Orleans, LA
    Manhattan School of Music New York, NY
    Memphis Symphony Orchestra Memphis, TN
    National Repertory Orchestra Breckenridge, CO
    National Symphony Orchestra Washington, DC
    New Jersey Symphony Orchestra Newark, NJ
    New York City Ballet New York, NY
    North Carolina Symphony Orchestra Raleigh, NC
    Omaha Symphony Orchestra Omaha, NE
    Oregon Bach Festival Eugene, OR
    Oregon Symphony Portland, OR
    Orlando Philharmonic Orlando, FL
    Pacific Symphony Irvine, CA
    Phoenix Symphony Phoenix, AZ
    Pittsburgh Symphony Orchestra Pittsburgh, PA
    Portland Symphony Portland, ME
    Preston Hollow Presbyterian Church Dallas, TX
    Rhode Island Philharmonic Providence, RI
    Richmond Symphony Orchestra Richmond, VA
    Rochester Philharmonic Orchestra Rochester, NY
    Saint Paul Chamber Orchestra St. Paul, MN
    Sarasota Orchestra Sarasota, FL
    SMU Meadows School of the Arts Dallas, TX
    Spokane Symphony Orchestra Spokane, WA
    Sun Valley Music Festival Ketchum, ID
    The Colburn School Los Angeles, CA
    Tucson Symphony Orchestra Tucson, AZ
    Utah Symphony Orchestra Salt Lake City, UT
    Virginia Symphony Orchestra Norfolk, VA
    West Virginia Symphony Wheeling, WV

  • Academy of Ancient Music Cambridge
    BBC Concert Orchestra London
    BBC National Orchestra of Wales Cardiff
    BBC Philharmonic Manchester
    BBC Scottish Symphony Orchestra Glasgow
    BBC Singers London
    BBC Symphony Orchestra & Chorus London
    Birmingham Contemporary Music Group Birmingham
    Bournemouth Symphony Orchestra Poole
    Britten Sinfonia Cambridge
    City of Birmingham Symphony Orchestra Birmingham
    English National Opera Orchestra London
    London Philharmonic Orchestra London
    Northern Sinfonia Newcastle
    Royal Academy of Music London
    Royal Liverpool Philharmonic Orchestra Liverpool
    Royal Opera House London
    Royal Philharmonic Orchestra London
    Scottish Chamber Orchestra Edinburgh

  • Budapest Festival Orchestra Budapest
    China National Center for the Performing Arts Orchestra Beijing
    Estonian National Symphony Orchestra Tallinn
    Iceland Symphony Orchestra Reykjavík
    Israel Philharmonic Orchestra Tel Aviv
    Malaysian Philharmonic Orchestra Kuala Lumpur
    MusicAeterna Saint Petersburg
    Orquesta Filarmónica de la UNAM Mexico City
    Orquestra Sinfónica do Estado de São Paulo São Paulo
    Puerto Rico Symphony San Juan
    Qatar Philharmonic Orchestra Doha
    Radio Telefis Eireann Dublin
    RTV Slovenia Symphony Orchestra Ljubljana
    Singapore Symphony Orchestra Singapore

    Theatro Municipal S√£o Paulo



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