OSA (Ochranný svaz autorský)

OSA (Ochranny svaz autorsky) is a Czech collective management organization founded in 1919 that administers the economic copyrights of composers, lyricists, music publishers, and their heirs for musical works. Based in Prague, it licenses public performance, broadcasting, and other uses of music in the Czech Republic and distributes royalties to rights holders based on actual usage data.

How OSA Works

OSA was established in 1919 by a group of Czech composers and publishers including Karel Hasler and Rudolf Piskacek. One of the first directors was a son of composer Antonin Dvorak. OSA is a founding member of CISAC (1926) and BIEM (1929), making it one of the oldest collective management organizations in the world.

OSA represents over 12,000 domestic rights holders and manages rights for approximately 5 million international rights holders through reciprocal agreements with 100 authors' societies worldwide. The organization does not represent performers (singers, musicians) of compositions, only the authors and publishers of the underlying musical works.

OSA collects royalties from:

• Radio broadcasts (189 radio stations reported to OSA in 2023)
• Television broadcasts (46 TV stations reported to OSA in 2023)
• Public performances including concerts, background music in venues, and cinemas
• Internet and mobile platforms for digital transmission of music
• Cable retransmission of broadcasts
• Private copying levies
• Physical media production and distribution
• Synchronization licensing for film and advertising
• Agency activities based on individual commissions from rights holders

OSA is the only collecting society in the world that distributes royalties to represented authors on a quarterly basis: March, June, September, and December. The organization operates a Partnership Grant Programme that supports represented artists, seeks out new talent, and funds charitable projects through initiatives like OSA Live, OSA Helps, OSA Talent, and OSA Premiere.

In 2024, OSA collected CZK 1,870,674,000 (approximately CZK 1.87 billion) in total revenues, a 9.02% increase from 2023. Of this, CZK 1,579,753,000 was collected for OSA-represented rights holders, with CZK 1,533 billion in rights value managed. OSA distributed CZK 1,180 billion to over 212,000 authors and publishers worldwide. The organization maintained a 12% overhead rate, meaning 88 CZK of every 100 CZK collected goes directly to rights holders. This places OSA among the most efficiently managed collective management organizations for music authors in Europe.

OSA has been active in EU copyright policy, publicly opposing the third draft of the GPAI Code of Practice in March 2025, arguing it undermines the objectives of the AI Act and contravenes EU law regarding authors' rights.

Real-World Example

A Czech composer writes music for a television series that airs on Czech TV (one of the 46 TV stations reporting to OSA). The series runs for 10 episodes, each containing 30 minutes of the composer's music. Czech TV pays OSA a blanket license fee for the right to broadcast musical works.

OSA processes the TV cue sheets and matches the usage to the composer's registered works. If the total royalty pool for Czech TV broadcasts in a given quarter is CZK 50 million, and the composer's music accounts for 0.1% of all reported usage, the composer receives approximately CZK 50,000 for that quarter (before publisher share deductions and the 12% overhead).

If the same series is broadcast in Germany, OSA's reciprocal agreement with GEMA means GEMA collects those royalties and remits them to OSA, which distributes them to the composer in the next quarterly distribution. The composer receives domestic royalties within 3 months and international royalties within 6 to 12 months of the actual broadcast.

With OSA's 88% distribution rate, if CZK 100,000 in royalties is collected for the composer's works, CZK 88,000 is paid to the writer and publisher (split according to registered shares) and CZK 12,000 covers administrative costs.

Why It Matters for Independent Artists

If you are a Czech-based composer, lyricist, or music publisher, OSA is the primary organization that collects royalties when your music is performed publicly, broadcast, streamed, or reproduced in the Czech Republic. Without OSA membership, you earn zero royalties from radio play, television use, public performance, or digital transmission of your compositions.

Join OSA and register every composition before it is publicly released. OSA's quarterly distribution schedule means you receive royalties faster than with most other societies (which typically distribute semi-annually). Submit accurate metadata including ISWC numbers and split sheets so that OSA's matching system correctly attributes usage.

OSA's 12% overhead rate is among the lowest in Europe. For every 100 CZK collected, you receive 88 CZK. Compare this to societies with 15 to 20% overhead rates, where you would receive only 80 to 85 CZK.

If your music is performed internationally, OSA's 100 reciprocal agreements with foreign societies ensure those royalties flow back to you. You can also submit cue sheets for film and television works to ensure performances are tracked across all reporting stations.

OSA does not represent performers (singers, session musicians). If you are a performer, you need to register separately with INTERGRAM, the Czech neighboring rights society, to collect performer royalties from broadcast and public performance of sound recordings.

Related Resources

• Performing Rights Organizations (PRO) - What a PRO is and how it functions
• Performance Royalties - How performance royalties are generated and collected
• Mechanical Royalties - How mechanical royalties differ from performance royalties
• Collective Management Organization (CMO) - How CMOs operate globally
• OSA Official Website - Visit OSA for membership and licensing information
• Use our Streaming Royalty Calculator to estimate your digital earnings