Sound Recording Studios (U.S.) — NAICS 51224

A NAICS industry (5-digit) that is, in practice, identical to its single child industry, 512240. This is a short rollup page: it gives this level's own federal figures and points you to the 512240 primer for the full analysis.

1. Overview

Under the North American Industry Classification System (NAICS), code 51224 — Sound Recording Studios is a five-digit industry that contains exactly one six-digit child industry: 512240, Sound Recording Studios. When a NAICS industry has a single child, the two levels describe the same set of businesses and carry the same statistics — so 51224 and 512240 are effectively one and the same.[1]

These establishments sell a room and a skill: acoustically treated spaces plus the engineers, mixers, and gear to capture, edit, mix, and master audio — music, voice-over, audiobooks, podcasts, commercials, and post-production sound for film and video. A studio is typically paid a fee for time and labor; as a rule it does not own the copyrights it helps create.[1] There is no U.S.-listed pure-play recording-studio stock; the industry is small, fragmented, overwhelmingly private, and owner-operated.

For the complete treatment — investable universe, unit economics, demand drivers, regulation, consolidation, risks, and how-to-invest — read the child primer, 512240 Sound Recording Studios. The sections below are a condensed rollup.

2. What's inside — and why this level equals its one child

NAICS 51224 rolls up a single child:

Because 512240 is the only member, there is no aggregation across siblings and no mix to analyze: every figure at the 51224 level is the 512240 figure. The scope, exclusions, and boundary cases are therefore identical — record labels sit in NAICS 512250, music publishers in 512230, other sound recording (meetings, live events) in 512290, film/video post-production in 512191, and independent artists/performers in 711510.[1] See the child primer for the full "what's in / what's out" detail.

3. How big it is (this level's federal figures)

The table below is our ground-truth federal data for NAICS 51224. Because the level has one child, these are the same numbers reported for 512240.

That is roughly 3 employees per establishment and about $767,000 of receipts per firm — a portrait of very small businesses.[2][3]

Undercount caveat (important at this level). These federal series count only employer establishments; they exclude the self-employed and no-payroll home/project studios that make up most of this industry.[4] Private industry research that includes those operators counts roughly 22,000 U.S. audio-production studios and ~$1.7 billion in revenue for 2026 — implying that on a headcount basis, around 90% of the operating footprint is invisible to the payroll-based federal figures.[7] Treat the ~$1.58 billion / ~2,131-establishment snapshot as the professional, staffed core, not the whole cottage economy.

4. Investable universe (where value concentrates)

With one child, there is nothing to spread across siblings — all of the theme's value sits inside 512240. And there is no U.S.-listed pure-play recording-studio company: the largest rooms are private or buried inside far bigger firms. Public investors reach the theme only by proxy — the major labels Universal (Euronext Amsterdam: UMG), Warner (Nasdaq: WMG), and Sony (NYSE: SONY), where studios are immaterial to earnings; immersive-audio licensor Dolby Laboratories (NYSE: DLB); and audio-equipment maker Focusrite (LSE AIM: TUNE). The actual studio assets are private and institutional (label-owned flagships, university facilities, and thousands of owner-operated LLCs and sole proprietors). Full company-by-company detail is in the child primer.

5. How the money works

A studio is a high-fixed-cost, utilization-driven business — closer to a boutique hotel than to software. Capacity is perishable: an empty room-hour cannot be stored and re-sold. Revenue ≈ sellable room-hours × utilization × realized rate, plus ancillary services (rental, education). The big fixed costs are real estate and the upfront buildout; incremental sessions are very profitable, but empty rooms bleed cash. Critically, studios earn session fees but do not capture copyright royalties — the master recording flows to the label/artist (512250) and the composition to the publisher (512230). See the child primer for rate cards, break-even hours, and buildout costs.

6. Demand drivers

The master variable is the volume of content being made — music, film/TV/streaming sound post, video-game audio, and advertising — which tracks entertainment and marketing budgets and is somewhat cyclical. Recorded-music consumption is a supportive backdrop (the Recording Industry Association of America, RIAA, reported U.S. recorded-music revenue of $17.7 billion in 2024, up 3%[8]). The clearest recent tailwind is the podcasting boom; immersive/spatial audio (Dolby Atmos catalog re-mixing) is a second. The standing headwind is democratized home-recording gear, which siphons the low and middle of the market away from commercial rooms.[7]

7. Regulation

Operating a studio is lightly regulated as a business but lives inside a heavily regulated rights ecosystem: copyright and work-for-hire contracts; music licensing under the Music Modernization Act (MMA) of 2018;[10] digital performance royalties administered by SoundExchange;[11] union agreements (American Federation of Musicians, AFM; and SAG-AFTRA); Occupational Safety and Health Administration (OSHA) noise rules; and evolving U.S. Copyright Office analysis of artificial intelligence and digital replicas.[12] None of this is a licensing barrier to entry. Detail is in the child primer.

8. Consolidation

The employer market is fragmented, not concentrated: the four largest firms take just 25.7% of receipts, the top 8 about 31.1%, the top 20 39.7%, and even the top 50 only 51.1%; the Herfindahl–Hirschman Index (HHI) is suppressed in the federal data.[2] Those figures cover only employer firms, so they understate fragmentation once nonemployers are counted. The dominant trend is attrition, not roll-ups: rising real estate costs in Los Angeles and New York are closing mid-tier rooms, while marquee studios and diversified (podcast/immersive) operators survive.[10][11]

9. Risks

The child-level risks carry through unchanged: technology substitution (ever-cheaper home gear); artificial intelligence absorbing low-margin functional audio and routine mixing/mastering; real-estate cost inflation in the exact urban markets premium studios need; utilization/cyclicality and thin margins; no copyright upside; key-person and customer concentration; weak collateral value in bespoke buildouts; and disclosure risk (public results too broad, private financials owner-adjusted).[7][9][10][12]

10. How to invest, and the outlook

Public routes are all indirect — no listed pure play exists; the nearest exposures are the major labels (UMG, WMG, SONY), Dolby (DLB) as a cleaner immersive-audio theme, Focusrite (TUNE) for equipment, and podcast/audio platforms (Spotify, Sirius XM, iHeartMedia, Audacy) as demand-side proxies. The real exposure is private: own/operate a studio as a small business, play the studio-anchored commercial real estate, back the fast-growing podcast-studio niche, or attempt a post-production roll-up (hard, given fragmentation and key-person risk). Outlook: expect the federal-scale professional core to stay roughly flat to slightly down (~$1.7 billion in 2026 per private research[7]), with real growth concentrated in podcasting, immersive/Atmos re-mixing, and audiovisual post-production. For the full how-to-invest checklist and diligence list, see the child primer, 512240.

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Sources

1. U.S. Census Bureau. "2022 NAICS — 512240 Sound Recording Studios" (single child of 51224; definition and excluded adjacent industries: 512250, 512230, 512290, 512191, 711510). https://www.census.gov/naics/?details=512240&input=512240&year=2022
2. U.S. Census Bureau. Economic Census 2022 — receipts (~$1.576939B), firms (2,057), concentration ratios (CR4 25.7%, CR8 31.1%, CR20 39.7%, CR50 51.1%; HHI suppressed), NAICS 512240. https://data.census.gov/profile/512240_-_Sound_recording_studios?n=512240
3. U.S. Census Bureau. County Business Patterns 2023 — establishments (2,131), employment (6,596), annual payroll (~$480.7M), Q1 payroll (~$122.4M), NAICS 512240. https://www.census.gov/data/datasets/2023/econ/cbp/2023-cbp.html
4. U.S. Census Bureau. "County Business Patterns Methodology" (excludes self-employed and nonemployer businesses). https://www.census.gov/programs-surveys/cbp/technical-documentation/methodology.html
5. IBISWorld. "Audio Production Studios in the US — Industry Analysis (NAICS 512240)." 2026 (≈22,000 studios, ≈$1.7B revenue, podcast growth). https://www.ibisworld.com/united-states/industry/audio-production-studios/1254/
6. Recording Industry Association of America. "2024 Year-End Music Industry Revenue Report" (U.S. recorded-music revenue $17.7B). https://www.riaa.com/reports/2024-year-end-music-industry-revenue-report-riaa/
7. BusinessDojo. "Recording Studio: Hourly Rate Strategy" and "Recording Studio: Profitability Guide." 2025–2026. https://dojobusiness.com/blogs/news/recording-studio-hourly-rates-maximize-revenue
8. Variety. "L.A. Recording Studios Are Fading, Despite Manifesting Music's Greatest Hits" (LA/NY real-estate pressure; Sound On Sound + Right Track → Legacy Studios). 2024. https://variety.com/2024/music/focus/los-angeles-recording-studios-1236064036/
9. Bobby Owsinski's Music Production Blog. "The Legendary Record Plant Hollywood To Close." 2024. https://bobbyowsinskiblog.com/legendary-record-plant-hollywood-to-close/
10. U.S. Copyright Office. "The Music Modernization Act." https://www.copyright.gov/music-modernization/
11. SoundExchange (statutory Section 114 digital performance royalties). https://www.soundexchange.com/
12. U.S. Copyright Office. "Copyright and Artificial Intelligence." https://www.copyright.gov/ai/