Other Sound Recording Industries (U.S.) — NAICS 51229

A Histometrics rollup primer for public-market and private investors.

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1. Overview

"Other Sound Recording Industries" is a NAICS industry — a five-digit grouping in the North American Industry Classification System (NAICS), the U.S. government's standard scheme for sorting businesses. Code 51229 is the catch-all corner of the sound-recording sector: the sound-recording services that are not record labels, music publishers, or recording studios. In practice that means firms that license background music to stores, restaurants, gyms and offices; license "production music" (pre-made library tracks) to film, TV, advertising and social-media creators; produce syndicated radio programming; record meetings and conferences; and record books onto audio for hire.[1]

For an investor, the shape of the level matters more than its size. This is a small, fragmented residual category — roughly $889 million in annual receipts across 468 firms[5] — sitting next to two large, fast-growing demand streams (recorded music and audiobooks) that are counted mostly elsewhere in the classification. The genuinely attractive money here is recurring, high-margin licensing — a background-music subscription base or a production-music catalog that earns fees again and again from an asset built once — not the labor-driven, commoditized for-hire recording work that makes up most of the firm count.

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

A NAICS industry (five-digit) can hold several U.S. national industries (six-digit). This one holds exactly one:

Because 51229 has a single child, the two are effectively identical — same scope, same firms, same federal statistics. The five-digit code exists only as a bookkeeping layer above the six-digit detail; there is no additional activity to aggregate. Everything in this rollup — the scope, the way the money works, the players, the risks — is treated in full in the child primer.

➡️ For complete detail, see the child primer: NAICS 512290 — Other Sound Recording Industries. This page gives only the level's own headline figures and a map of where value sits; it does not repeat the child's full analysis.

A scope reminder worth carrying up: 51229 is defined by exclusion. It covers sound-recording services except record production and distribution (NAICS 512250), music publishing (512230), sound-recording studios (512240), and independent artists and performers (711510). Streaming and internet music distribution sit in the newer content codes (e.g., 516210), not here.[1] So this level is deliberately narrow — what is left after labels, publishers, and studios are carved out.

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3. Size (this level's rollup figures)

These are Histometrics' federal ground-truth figures for NAICS 51229. Because the level equals its one child, they are identical to the 512290 numbers.

Two same-survey derivations: about $1.9 million of receipts per firm (2022 basis) and payroll of roughly $79,000 per employee (2023 basis) — a small but relatively well-paid, catalog-and-licensing workforce rather than a large-headcount one. Receipts (2022 Economic Census) and payroll (2023 County Business Patterns, or CBP) come from different surveys and years, so the two dollar figures should not be compared directly.[4][5] The HHI — a standard concentration gauge — is suppressed for this code, so a precise concentration comparison with other industries isn't possible.

Undercount caveat — important here. These figures materially understate the economic activity the category relates to, for three reasons:[4][5]

1. It is a residual code by design. The big dollars in "sound recording" sit in the sibling codes it excludes — labels (512250), publishers (512230), studios (512240) — and in streaming platforms classified elsewhere (516210). The multi-billion-dollar recorded-music and audiobook markets are counted mostly outside 51229.[7][8]
2. Nonemployer and tiny operators. CBP counts only employer establishments. Much of the for-hire event recording, freelance audiobook narration, and one-person production-music work is done by nonemployer sole proprietors and freelancers who never appear in the 733-establishment count.[4]
3. In-house, institutional, and offshore/platform revenue. Audio work inside universities, public broadcasters, and government sits outside the count, and several of the largest consumer-facing players are foreign or platform-based (Epidemic Sound is Swedish), booking revenue outside U.S. establishment statistics.[13]

Read the $889 million as the measured floor of a small niche, not the size of the markets these firms actually compete in.

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4. Investable universe (where value concentrates)

Because 51229 is a single-child level, its investable map is the child's map. Two facts carry up:

• There is no pure-play U.S.-listed company in this code. Public investors get only partial, indirect exposure — a thin slice inside larger commercial-music, podcast, radio, streaming, and music-rights companies. The closest listed operating comparable is Stingray Group (Toronto Stock Exchange: RAY.A / RAY.B) in commercial background music; podcast and audio-advertising exposure runs through PodcastOne (Nasdaq: PODC), iHeartMedia (Nasdaq: IHRT) and Sirius XM (Nasdaq: SIRI); audiobook exposure sits inside Amazon (Nasdaq: AMZN, via Audible) and Spotify (New York Stock Exchange: SPOT); and production-music rights exposure runs through the majors — Universal Music Group (Euronext Amsterdam: UMG), Warner Music Group (Nasdaq: WMG) and Sony Group (NYSE: SONY) — plus Reservoir Media (Nasdaq: RSVR) as the nearest listed "own-a-catalog" proxy.[19][20][21][22][17]
• The specialists are private, mostly private-equity-owned. Value concentrates in a handful of names: Mood Media in background music (Vector Capital), Epidemic Sound in production music (backed by EQT and Blackstone), APM Music (a Sony/Universal library joint venture), and RBMedia in audiobooks (H.I.G. Capital / Francisco Partners).[14][11][12][17][18]

See the child primer (§4) for the full company-by-company tables and the read-through caveats. The one-line takeaway: at the top, this is a private-equity and conglomerate-owned industry, not a public-equity one, and the public market offers exposure to pieces of the value chain rather than a clean way to buy the U.S. industry.

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5. How the money works

The central economic distinction — the same at this level as in the child — is between recurring platform/licensing revenue and labor-intensive project work:

• Recurring subscription/licensing (the high-margin core). Background-music providers sell a per-location monthly subscription; production-music libraries sell per-track synchronization ("sync") licenses or flat subscriptions aimed at creators. Once a track exists, the marginal cost of licensing it again is near zero, so gross margins on a well-used catalog are high.[14][11]
• Royalties (the catalog as a yield asset). Production music earns ongoing performance royalties each time the finished video or program is broadcast or streamed, so a catalog behaves like an income-producing intellectual-property (IP) asset — which is why labels and private-equity (PE) firms buy and hold these libraries.
• Per-project service fees (labor-driven, lower margin). For-hire recording of meetings, events, and audiobook narration is billed per project or finished hour; barriers to entry are low, so margins are thinner and more competitive.

The investable prize is the catalog/subscription half, not the commoditized for-hire half. Full model-by-model economics and metrics are in the child primer (§5).

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6. Demand drivers

Demand for this level rides the same forces as its child. In brief: the commercial footprint of open retail, hospitality, fitness, healthcare and office locations (background music); content-production volume across film, TV, streaming, advertising, games and — increasingly — the creator economy of YouTube, TikTok and Instagram (production music); the recorded-music and streaming boom and the double-digit growth in podcast advertising and audiobook consumption as demand proxies; and business/event activity for conference and field recording.[7][8][9] Artificial intelligence (AI) cuts both ways — lowering editing and localization costs while threatening to commoditize generic production. The strongest outlook is in licensed business audio, creator services, and rights-compliant production workflows. Full detail and figures are in the child primer (§6).

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7. Regulation

NAICS is a statistical classification, not an operating license — there is no permit to run a background-music or recording business. The binding regime is copyright and music-licensing law, and it applies identically at this level and its child. Key points: any business that plays music publicly must be licensed through performing-rights organizations (PROs) — ASCAP, BMI, SESAC and GMR — and background-music providers add value by bundling and clearing those rights; the Music Modernization Act (MMA) of 2018 reshaped mechanical and digital royalties (via the Mechanical Licensing Collective and SoundExchange); production-music licensing turns on the synchronization right; and recording meetings and calls creates consent exposure under a patchwork of one-party and all-party state rules.[19][20][18][21] The forward-looking wildcard is generative AI and digital replicas, an unsettled area the U.S. Copyright Office is still addressing.[22] See the child primer (§7) for the full treatment.

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8. Consolidation

The federal data show a moderately concentrated industry within its small universe: the top 4 firms hold 57.6% of receipts, the top 8 hold 65.4%, the top 20 hold 76.2%, and the top 50 hold 86.2%, with a long tail of tiny operators below.[5] The HHI is suppressed, so a precise cross-industry comparison isn't possible. The through-line — detailed in the child primer (§8) — is private capital assembling recurring-revenue and catalog assets: background music consolidated around Mood Media, production music split between major-label libraries and disruptive independents, and audiobooks rolled up by PE (RBMedia changed hands for over $1 billion in 2023) and integrated by the platform giants.[14][17][18]

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9. Risks

The risks are the child's risks, carried up unchanged:

• AI disruption (the dominant risk) — AI narration and AI-generated tracks could commoditize the category and devalue catalogs, or widen margins for library owners; the legal status is unresolved.
• Copyright/royalty cost inflation squeezing the recurring-subscription model.
• Catalog and rights integrity — loss of rights, unclear ownership, or defective metadata impairing the core IP asset.
• Value migration to adjacent codes/platforms — economics keep concentrating in streaming, publishing, and platform businesses classified outside this code.
• Cyclicality and footprint risk — background-music revenue falls with retail/hospitality closures; production, podcast and radio demand softens with advertising budgets.
• Platform dependence, commoditization of for-hire services, privacy/consent exposure, and private-equity leverage.
• Measurement risk — a public company may carry a recognizable audio brand yet have only a small economic connection to this code; look through to the specific sub-segment and company.

Full discussion in the child primer (§9).

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10. How to invest & outlook

Public routes (indirect only). With no listed pure-play, public investors get exposure as a minor component of larger companies — Stingray (RAY.A/RAY.B) for commercial music; PodcastOne (PODC), iHeartMedia (IHRT) and Sirius XM (SIRI) for podcast/audio advertising; Amazon (AMZN) and Spotify (SPOT) for audiobooks; and UMG, WMG, Sony (SONY) and Reservoir Media (RSVR) for music-rights exposure. Separate the economic engines rather than buying a "brand."[19][20][21][22][17]

Private routes (where the real assets are). The specialist businesses are private and mostly PE-owned; access is via PE and growth-equity funds, fund secondaries, or — for accredited/institutional investors — direct deals in background-music service companies, audio-visual roll-ups, and production-music catalogs bought as income-yield assets. Diligence should focus on customer retention and contract duration, revenue after royalties, staff/studio/equipment utilization, catalog ownership and rights, platform concentration, cash conversion, and debt/covenant headroom.[12][14][18]

Outlook. The tailwinds are structural — streaming and the creator economy sustaining production/library demand, double-digit audiobook and podcast-advertising growth, and a stable-to-recovering brick-and-mortar footprint underpinning background-music subscriptions.[7][8][9] The dominant swing factor is generative AI, a two-sided risk with the copyright rules still being written. Expect continued PE-led consolidation of recurring-revenue and catalog assets, valued increasingly as yield instruments. Net: an unglamorous, hard-to-access niche whose best assets — subscription bases and libraries — are quietly attractive, but whose measured "industry" is a small residual best understood by looking through to the specific sub-segment and owner.

Because this level equals its one child, the full analysis lives in the child primer — NAICS 512290.

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Sources

Drawn from the child primer (NAICS 512290); numbering matches that primer's Sources list.

1. U.S. Census Bureau. "2022 NAICS Definition: 512290 Other Sound Recording Industries" (scope, cross-references). 2022. https://www.census.gov/naics/?details=512290&input=512290&year=2022
2. U.S. Census Bureau. County Business Patterns: 2023, NAICS 512290 (establishments, employment, payroll; employer-establishment basis). 2025. https://www.census.gov/data/datasets/2023/econ/cbp/2023-cbp.html
3. U.S. Census Bureau. Economic Census — "EC2200SIZECONCEN: Concentration of Largest Firms, NAICS 512290" (receipts, firm count, CR4/CR8/CR20/CR50, HHI suppressed). 2022. https://data.census.gov/table/ECNSIZE2022.EC2200SIZECONCEN
4. Recording Industry Association of America (RIAA). "2024 Year-End Music Industry Revenue Report" ($17.7B total, $14.9B streaming, 100M paid subscriptions). 2025. https://www.riaa.com/reports/2024-year-end-music-industry-revenue-report-riaa/
5. Audio Publishers Association / Publishing Perspectives. "US Audiobook Sales Reach $2.22 Billion" (+13% YoY, 2024). 2025. https://publishingperspectives.com/2025/06/audio-publishers-association-us-audiobook-sales-reach-2-22-billion/
6. Interactive Advertising Bureau & PricewaterhouseCoopers. "IAB/PwC Internet Advertising Revenue Report: Full Year 2025" (U.S. podcast ad revenue ~$2.86B, +17.6%). 2026. https://www.iab.com/wp-content/uploads/2026/04/IAB_PwC_Internet_Ad_Revenue_Report_Full_Year_2025_April_2026.pdf
7. Music Business Worldwide. "Epidemic Sound's revenues jumped 29% to $181.6m in 2024, as EBITDA soared 150% YoY to $13.9m." 2025. https://www.musicbusinessworldwide.com/epidemic-sounds-revenues-jumped-29-to-181-6m-in-2024-as-ebitda-soared-150-yoy-to-13-9m/
8. EQT. "Epidemic Sound brings in EQT Growth and Blackstone Growth." 2021. https://eqtgroup.com/news/epidemic-sound-brings-in-eqt-growth-and-blackstone-growth-to-support-its-next-phase-of-development-2021-03-11
9. Epidemic Sound Group AB. "Annual Report 2024." 2025. https://corporate.epidemicsound.com/files/Main/21928/4132587/epidemic-sound-annual-report-2024.pdf
10. Mood Media. Company materials (500,000+ subscriber locations in 100+ countries; commercial-music platform). 2025. https://us.moodmedia.com/
11. Wikipedia. "APM Music" (Sony/Universal joint venture; ~1.1M tracks). 2025. https://en.wikipedia.org/wiki/APM_Music
12. Publishers Weekly. "With a Twist, Sale of RBmedia Completed" (H.I.G./Francisco Partners acquire RBMedia from KKR for >$1B; 66,000+ titles). 2023. https://www.publishersweekly.com/pw/by-topic/industry-news/industry-deals/article/93205-with-a-twist-sale-of-rbmedia-completed.html
13. Stingray Group Inc. "Annual Report 2025" (broadcasting & commercial-music segment ~C$254.5M). 2025. https://corporate.stingray.com/wp-content/uploads/2025/06/stingray-annual-report-F2025-vf.pdf
14. PodcastOne, Inc. "Annual Report on Form 10-K, fiscal year ended March 31, 2025" (~$52.1M revenue). 2025. https://www.sec.gov/Archives/edgar/data/1940177/000143774925022022/podc20250331_10k.htm
15. iHeartMedia, Inc. "Annual Report on Form 10-K, year ended December 31, 2025" (podcast revenue ~$563.7M). 2026. https://www.sec.gov/Archives/edgar/data/1400891/000162828026025822/ihrt-20251231.htm
16. Sirius XM Holdings Inc. "Annual Report on Form 10-K, year ended December 31, 2025." 2026. https://investor.siriusxm.com/sec-filings/all-sec-filings/content/0000908937-26-000006/siri-20251231.htm
17. Reservoir Media, Inc. Form 8-K, fiscal-2024 results (~$145M revenue); StockAnalysis market data (RSVR). 2024–2026. https://stockanalysis.com/stocks/rsvr/market-cap/
18. U.S. Copyright Office. "What Musicians Should Know About Copyright" (composition vs. sound recording). 2026. https://www.copyright.gov/engage/musicians/
19. U.S. Copyright Office. "Issues Related to Performing Rights Organizations" (ASCAP/BMI consent decrees). 2025. https://www.copyright.gov/policy/pro-issues/
20. U.S. Copyright Office. "The Music Modernization Act" (MLC, blanket mechanical license, SoundExchange, AMP Act). 2018–2020. https://www.copyright.gov/music-modernization/
21. Reporters Committee for Freedom of the Press. "Introduction to the Reporters Recording Guide" (one-party vs. all-party consent). 2026. https://www.rcfp.org/introduction-to-reporters-recording-guide/
22. U.S. Copyright Office. "Copyright and Artificial Intelligence" (digital-replica recommendation). 2025. https://www.copyright.gov/ai/