Media Buying Agencies (United States)

NAICS 2022 code 541830

(NAICS = North American Industry Classification System, the U.S. government's standard scheme for grouping businesses by activity.)

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1. Overview

A media buying agency is the middleman between advertisers and the companies that sell ad space and airtime. It decides where an advertiser's money should go — which TV networks, streaming services, websites, social platforms, podcasts, billboards, and search engines — then negotiates the price, places the buy, and checks that the ads actually ran. Media planning (choosing the mix) and media buying (executing it) are usually sold together; the creative work of designing the ads themselves is a separate business [6].

What makes this an interesting business is what it does not own. Agencies carry no inventory and run no factories; they sell judgment, buying scale, data, and client relationships. That makes media buying a high-margin, people-driven, and highly cyclical service — spending swells in good years and gets cut fast in downturns. It is the plumbing of a roughly $360-billion-a-year U.S. digital advertising market, plus tens of billions more in traditional media [21].

Two ways to get exposure, and neither is a pure play:

• Public markets — a handful of global advertising holding companies own the big media networks and are listed in New York, Paris, London, Tokyo, and Amsterdam. There is no U.S.-listed "media-buying-only" stock; you buy the diversified parent, whose media arm sits alongside creative, public-relations (PR), data, and consulting businesses.

• Private markets — the field is full of privately held independents (Horizon Media, Tinuiti, PMG, Goodway Group) and is a frequent target for private-equity roll-ups. Founding, owning, or buying an independent shop is the most direct private route.

The investment case, public or private, rests on client relationships, buying scale, data and measurement capability, talent, and cash generation. The core risks are discretionary client budgets, platform disintermediation, fee pressure, privacy regulation, and consolidation.

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2. What it is and how it's structured

The federal definition. NAICS 541830 covers establishments primarily engaged in buying advertising time or space from media owners and reselling it to advertising agencies or advertisers [6]. In plain terms: firms whose main product is the media buy itself, not the creative campaign. The value chain is:

Advertiser → media-buying agency → media owner or digital platform.

Media buyers plan campaigns, negotiate placements, execute purchases, optimize targeting, and report results; many now layer on analytics, commerce, and technology services.

What it excludes (and where those activities live instead):

• Creating advertising campaigns and placing them — NAICS 541810, Advertising Agencies [6]. This is the big one: most full-service and holding-company agencies are classified here, not in 541830.

• Selling time or space on behalf of the media owners as an independent sales rep — NAICS 541840, Media Representatives [6].

• Standalone marketing/media strategy advice — NAICS 541613, Marketing Consulting Services.

• Outdoor/billboard display owners, PR firms, direct mail, and the media owners themselves (broadcasters, publishers, streamers, ad-tech platforms) — their own separate codes, mostly in the Information sector [6].

Ownership mix. Two very different populations sit under this label:

1. Independents — hundreds of small-to-midsize, mostly private, owner- or employee-operated shops. This is what the federal statistics mostly capture (Section 3).

2. Holding-company networks — the media arms of a few global conglomerates (Omnicom, Publicis, WPP, Dentsu, Havas). These direct the vast majority of the actual media spending in the country, but in the government's data they are largely booked under 541810 (Advertising Agencies) or inside their diversified parents — which is why 541830's official totals look small (Section 3).

Firm and establishment counts should not be read as parent-company counts: one company can own several establishments [2].

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3. How big it is

Our federal figures for NAICS 541830 (latest available):

(CR4/CR8/CR20/CR50 are the combined revenue shares of the largest 4, 8, 20, and 50 firms. The HHI — Herfindahl-Hirschman Index — sums the squared market shares of all firms; higher means more concentrated. SBA = U.S. Small Business Administration.)

A few things to read from this. Average pay works out to roughly $111,000 per employee [1], and payroll eats about a quarter of receipts (~26%) [1][2] — consistent with a high-skill, labor-heavy service business. On concentration, the picture is a handful of sizable players atop a long tail of small shops: the top four firms take about a third of revenue, but it takes 50 firms to reach 84% [2]. An HHI of 441.6 is well below the levels antitrust agencies treat as concentrated — the U.S. Department of Justice's 2023 Merger Guidelines flag markets above roughly 1,800 as highly concentrated — so on this national measure the industry reads as unconcentrated, though any actual merger review turns on how the relevant market is defined, not this single number [2][7]. None of this is a valuation signal.

The undercount — important. These numbers dramatically understate media buying's real economic weight, for several reasons:

• Classification. The media-buying operations of the global holding companies mostly get counted under 541810 (Advertising Agencies) or inside their parents, not here. For scale: Omnicom alone reported about $17.3 billion in 2025 revenue [12] and Publicis about €17.4 billion [13] — each many times the entire ~$9.0 billion of receipts recorded for all of 541830 [2].

• Fees vs. billings. "Receipts" measures the agency's fee/commission income, not the media dollars flowing through it. The advertising spend an agency directs runs into the hundreds of billions; only the thin slice it keeps as fees shows up here (Section 5).

• Disintermediation. A large and growing share of buying now happens through automated ("programmatic") ad-tech platforms and advertisers' own in-house teams — activity that never lands in this NAICS code at all.

• Survey scope. The Economic Census and CBP generally count only businesses with paid employees, excluding self-employed people and firms without an employer identification number or employees; CBP figures through 2023 are also compiled on the 2017 NAICS basis while the receipts and concentration figures use the 2022 Economic Census, so the two panels share the code and title but not an identical statistical universe [4][5].

Treat 541830's totals as a reasonable picture of the independent media-buying shop segment, and a poor proxy for media buying as a whole.

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4. The investable universe

There is no U.S.-listed pure play, and no listed company whose accounts map cleanly to U.S. NAICS

541830. Public exposure means owning an advertising holding company, where media buying is one large division among creative, PR, data, and consulting businesses. (Listing venues below: NYSE = New York Stock Exchange; LSE = London Stock Exchange; Nasdaq; Euronext Paris/Amsterdam; Tokyo. ADR = American depositary receipt, a U.S.-traded proxy for a foreign share.)

Public companies (holding-company parents):

Interpublic Group (IPG) is no longer a separate public investment after Omnicom completed its acquisition on November 26, 2025 [11].

Adjacent (ad-tech, not agencies). The automated buying platforms agencies and advertisers use — led by The Trade Desk (Nasdaq: TTD) — are a related public bet on how media gets bought, but they are technology vendors that sell or enable inventory, not media buying agencies. Their growth can add to agency demand in some channels while reducing the need for agency intermediation in others.

Major private / other owners. The independents that fill out NAICS 541830 are almost all private, and agency-level revenue and cap tables are generally undisclosed. A representative (not market-share-ranked) map:

Management consultancies have also pushed in — Accenture Song (parent Accenture, NYSE: ACN) is the largest — blurring the line between agency and consultancy.

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5. How the money works

Agencies get paid several ways, and the mix has shifted over decades from simple commissions toward fees and, controversially, trading profit:

• Commission on media spend. The classic model was a flat 15% of what the client spent. That standard has collapsed under pressure for transparency; today traditional-media buying commonly runs roughly 1.5%–6%, and digital buying roughly 5.5%–10%, of spend [8][9].

• Fees / retainers. For big advertisers, compensation is now usually a negotiated fee based on the staff assigned (people, hours, seniority) rather than a percentage of media [8]. This decouples agency pay from ad budgets.

• Performance / incentive pay. A slice tied to hitting agreed business or campaign outcomes.

• Principal-based buying (media arbitrage). The agency buys ad inventory itself, as principal, then resells it to clients at a markup. It can lower a client's price but is opaque about the agency's cut — a 2016 industry study found markups of 30%–90% on such deals [10] — and it raises conflict-of-interest concerns; some agencies reject it outright [30]. A growing and scrutinized profit source.

• Rebates and volume bonuses. Payments from media owners tied to how much the agency spends with them. That same 2016 study found these "pervasive" in the U.S. and often not passed back to advertisers [10] — the core of the industry's transparency debate.

• Value-added services. Data, analytics, ad-tech licensing, and "in-housing" consulting.

Billings vs. net revenue — the number that matters. The key accounting distinction is between the client money flowing through an agency and the slice it keeps:

• Billings = total client media dollars managed or placed.
• Pass-through costs = the media and supplier costs charged straight to the client.
• Net revenue (WPP calls it "revenue less pass-through costs") = what's retained for the agency's services — fees, commissions, or markups [14]. In some principal arrangements media pass-through is nonetheless booked as revenue, so gross billings can badly overstate economic scale [14].

Investors watch net revenue, not billings. Because this is a fee-on-spend, labor-cost business, the profit levers are:

• Organic net-revenue growth — the holding companies' headline health metric (growth stripped of acquisitions and currency). Low-single-digit organic growth was the industry norm going into 2025 [19].

• Staff-cost ratio and utilization — payroll is the dominant cost [1], so margins live or die on keeping talented people fully billable. Operating margins at the majors typically run in the mid-to-high teens on net revenue.

• Client retention, concentration, and new-business wins — large accounts go up for competitive "media reviews" every few years; a single win or loss can move a network's growth materially.

• Media spend managed per employee, cash conversion, working capital, and net debt.

The federal file supplies none of these company-level profitability, retention, or working-capital measures — they come from company filings.

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6. What drives demand

• The advertising cycle. Ad spending tracks the broader economy and corporate confidence; it is one of the first budgets cut in a downturn and restored in a recovery, which makes agency revenue distinctly cyclical.

• The shift to digital, programmatic, retail media, and streaming. U.S. programmatic ad spend passed roughly $270 billion in 2025 — over 85% of all digital spend — and retail media networks (Amazon, Walmart, and the like) plus connected-TV (CTV) streaming are among the fastest-growing segments [20]. More channels and more complexity is double-edged: it raises the value of expert buyers, but also lets big platforms and in-house teams buy directly.

• Fragmented attention and measurement. As targeting and attribution grow more complex — and as privacy rules and the decline of third-party cookies reshape them — advertisers lean on agencies for first-party-data plumbing and proof of return on ad spend (ROAS).

• Big-event years. U.S. elections (political advertising), the Olympics, and the FIFA World Cup pull forward spending. 2026 stacks the Winter Olympics, a World Cup hosted largely in the U.S., and U.S. midterm elections into a single year — a near-term tailwind (a forward-looking judgment).

• AI. Automated planning, buying, and optimization is both a demand driver (a new service to sell) and a threat to headcount-based fees (see Risks). WPP, Dentsu, Havas, and Stagwell all now frame their media offerings around AI-driven, addressable, and shoppable advertising [15][16].

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7. Regulation

Media buying is lightly regulated as a profession — no licensing regime, no capital requirements. The rules that matter are indirect:

• Advertising law. The Federal Trade Commission (FTC) enforces truth-in-advertising principles; its Endorsement Guides, revised in 2023, cover social-media endorsements, reviews, influencers, and disclosure of material connections [23]. Those govern the ads, ultimately the advertiser's responsibility, more than the buying mechanics.

• Antitrust. With the industry consolidating, merger review is now front-and-center. The FTC cleared Omnicom's ~$13.5 billion acquisition of Interpublic in 2025 only under a consent order that — unusually — bars the combined agency from steering ad dollars away from publishers based on their political or ideological viewpoint, except at a client's explicit individual direction [22]. That order responded to concerns that agencies had coordinated to withhold spend from certain outlets.

• Political-ad disclosure. The Federal Communications Commission (FCC) requires broadcast, cable, and satellite licensees to keep public inspection files documenting political and issue advertising; agencies buying that inventory must preserve accurate client, payment, and scheduling records [24].

• Transparency. The rebate/principal-buying disclosure debate [10] is handled mainly through contracts and self-regulation (industry bodies, client audit rights), not statute.

• Data privacy. The California Consumer Privacy Act (CCPA), as amended by the California Privacy Rights Act (CPRA), gives consumers rights to opt out of the sale or sharing of personal information for cross-context behavioral advertising; peer state laws and the EU's General Data Protection Regulation (GDPR) for multinational clients increasingly constrain the targeting data agencies rely on [25].

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8. Competitive dynamics and consolidation

For decades the business was framed around a "Big Six" set of global holding companies. That structure is actively collapsing into a Big Five (or fewer):

• Consolidation at the top. Omnicom's completion of the IPG merger on November 26, 2025 created the world's largest advertising holding company, with combined revenue above $25 billion; scale in data and buying leverage was the stated rationale [11][12]. Scale helps agencies negotiate media terms, spread technology costs, serve multinational clients, and build proprietary measurement — but integration can damage client relationships, talent retention, and brand clarity.

• Divergent fortunes. Publicis has been the standout performer while WPP struggled enough to retire the storied GroupM name and relaunch it as WPP Media in 2025; Dentsu guided to roughly flat growth and Havas posted modest gains [15][19].

• New entrants from the flanks. Management consultancies (led by Accenture Song) and the big tech platforms have moved onto agency turf, while U.S. challenger Stagwell and a deep bench of independents compete on speed, specialization, transparency, founder access, and lower overhead.

• Disintermediation pressure. Every dollar an advertiser buys directly through a self-serve platform (Google, Meta, Amazon, The Trade Desk) or an in-house team is a dollar that skips the agency — a structural counterweight to consolidation. Entry is relatively easy for a specialist shop with experienced buyers and client relationships; global data infrastructure and platform access are the hard parts to replicate.

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9. Risks

• Cyclicality. Advertising budgets are discretionary and fall quickly when advertisers cut in a slowdown.

• Disintermediation. In-housing, walled-garden self-serve buying, and ad-tech platforms let advertisers bypass agencies for a growing share of spend.

• Fee compression. Decades of downward pressure on commissions and fees squeeze margins; clients and procurement teams keep pushing.

• Pass-through confusion. Gross billings can overstate economic scale and obscure thin net margins — a diligence trap for both public and private buyers.

• Client concentration and churn. Big accounts periodically go to competitive review; losing one can dent a network's growth, utilization, and morale for a year or more.

• Transparency and legal exposure. Principal-based buying and rebates remain reputationally and legally sensitive [10]; disclosure disputes and audits recur.

• Antitrust constraints. Regulators can attach behavioral conditions to deals — the Omnicom-IPG order is a live example [22] — and can block future consolidation.

• Privacy and data risk. Restrictions on tracking and targeting can weaken campaign effectiveness and the data edge agencies sell.

• AI disruption. If automation collapses the hours needed to plan and buy media, headcount-based fee revenue is directly at risk even as new AI services are sold.

• Talent dependence and brand safety. Relationships and judgment can walk out with senior staff; ad fraud, unsafe placements, and weak measurement can damage client trust.

• Platform power. Google, Meta, and Amazon capture ad spend directly and control the data agencies need, shifting leverage away from the buyers.

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10. How to invest and the outlook

Public routes. There is no clean U.S.-listed media-buying pure play; exposure comes through the diversified holding companies — Omnicom (NYSE: OMC), WPP (LSE/NYSE: WPP), Publicis (Euronext Paris: PUB; US OTC ADR PUBGY), Dentsu (Tokyo: 4324), Havas (Euronext Amsterdam: HAVAS), and U.S. challenger Stagwell (Nasdaq: STGW). These are cyclical, several dividend-paying, marketing-services names whose media divisions are bundled with creative, PR, data, and consulting. Compare them on revenue less pass-through costs rather than gross billings, and review organic growth, operating margin, free cash flow, client retention and concentration, net debt, restructuring costs, and U.S. exposure; multiples such as enterprise-value-to-EBITDA (earnings before interest, taxes, depreciation, and amortization) and free-cash-flow yield are only meaningful after adjusting for pass-through accounting and non-media businesses. For a bet on the mechanics of buying rather than the agencies, ad-tech platforms such as The Trade Desk (Nasdaq: TTD) are the adjacent, higher-growth, higher-volatility option — but they are technology vendors, not agencies.

Private routes. Because most media-buying firms are private, the direct paths are founding or buying an independent shop, taking equity in one, or investing alongside the private-equity sponsors rolling up performance and digital-first agencies (Tinuiti, PMG, Goodway Group, Brainlabs and peers). Underwrite normalized net revenue, recurring fees, client tenure and concentration, owner dependence, employee turnover, working capital, technology ownership and data rights, principal-buying practices, and compliance controls. The SBA's $32.5 million size standard [3] is a federal small-business eligibility line, not a valuation ceiling. Valuations hinge on retained client relationships, net-revenue growth, and how "sticky" and data-differentiated the offering is.

Outlook (forward-looking judgments). The demand backdrop is favorable in aggregate: total ad spend keeps migrating to digital, programmatic, retail media, and streaming [20][21], and 2026's rare triple of Winter Olympics, a U.S.-hosted World Cup, and midterm elections should lift near-term spending. The structural questions are who keeps the margin and how AI reshapes the cost base. Consolidation (Omnicom-IPG) is a bet that scale in data and buying wins; the opposing bet is that platforms, consultancies, and in-house teams keep disintermediating the middleman while AI erodes the hours agencies bill for. Expect the majors to lean hard into first-party data, retail media, and AI-driven buying to defend fees, and expect the independents' fate to keep drawing private-equity money. The central question is not simply whether advertising grows, but whether the agency captures durable net revenue and cash flow after media costs, technology investment, talent expense, and client bargaining power. This is a cyclical, mature, cash-generative business facing a genuine technological reordering, not a secular grower. (This is background, not investment advice; do your own diligence.)

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Sources

1. U.S. Census Bureau. County Business Patterns, 2023 (NAICS 541830 — establishments, employment, annual and first-quarter payroll). https://www.census.gov/programs-surveys/cbp.html

2. U.S. Census Bureau. 2022 Economic Census — Establishment and Firm Size / Concentration by Largest Firms (NAICS 541830 — firms, receipts, CR4/CR8/CR20/CR50, HHI). https://www.census.gov/programs-surveys/economic-census.html

3. U.S. Small Business Administration. Table of Small Business Size Standards, effective March 2023 (NAICS 541830 — $32.5M receipts). https://www.sba.gov/document/support-table-size-standards

4. U.S. Census Bureau. County Business Patterns — Methodology (coverage: employer establishments; excludes nonemployers; 2017 NAICS basis through 2023). https://www.census.gov/programs-surveys/cbp/technical-documentation/methodology.html

5. U.S. Census Bureau. 2022 Economic Census — About / FAQ (scope; excludes nonemployers and most government establishments). https://www.census.gov/programs-surveys/economic-census/year/2022/about/faq/faq-general.html

6. U.S. Census Bureau. 2022 NAICS Manual (541830 definition and cross-references to 541810 Advertising Agencies and 541840 Media Representatives). https://www.census.gov/naics/reference_files_tools/2022_NAICS_Manual.pdf

7. U.S. Department of Justice / FTC. 2023 Merger Guidelines (HHI thresholds for market concentration). https://www.justice.gov/atr/2023-merger-guidelines

8. Agency Management Institute. "How to Calculate Advertising Agency Commission Rates," 2024. https://agencymanagementinstitute.com/advertising-agency-commission-rates/

9. EmpoweringCPO. "Overview of Media Services Market & Pricing" (media-buying commission ranges),

10. https://empoweringcpo.com/procurement-reports/media-buying-rates-agency-commission/

11. Association of National Advertisers (ANA) / K2 Intelligence. "An Independent Study of Media Transparency in the U.S. Advertising Industry," 2016. https://www.ana.net/content/show/id/pr-2016-rebates-other

12. Omnicom Group. "Omnicom Completes Acquisition of Interpublic" (merger closed Nov. 26, 2025; world's leading marketing company; ownership split), 2025. https://www.omc.com/newsroom/omnicom-completes-acquisition-of-interpublic-forming-the-worlds-leading-marketing-and-sales-company-built-for-intelligent-growth-in-the-next-era/

13. Omnicom Group. "Omnicom Reports Fourth Quarter and Full Year 2025 Results" (revenue ~$17.3B),

14. https://www.omc.com/newsroom/omnicom-reports-fourth-quarter-and-full-year-2025-results/

15. Publicis Groupe. "Full Year 2025 Results" / 2025 Universal Registration Document (€17.4B revenue; ~114,000 employees; Publicis Media networks), 2026. https://www.publicisgroupe.com/en/investors/2025-universal-registration-document

16. WPP plc. Annual Report & Accounts 2025 (revenue less pass-through costs definition; trading). https://www.wpp.com/en/investors

17. WPP. "WPP Media Launches as Fully Integrated, AI-Powered Media Company" (GroupM renamed WPP Media), 2025. https://www.wpp.com/en/news/2025/05/wpp-media-launches-as-fully-integrated-ai-powered-media-company

18. Dentsu Group. Integrated Report 2025 / "Media Solutions" (Carat, iProspect, dentsu X; addressable/shoppable media). https://www.group.dentsu.com/en/

19. Havas N.V. "Havas Announces Successful Listing on Euronext Amsterdam" (Dec. 2024) and 2025 Annual Report (Havas Media Network). https://www.havas.com/press_release/havas-announces-successful-listing-on-euronext-amsterdam-marking-a-new-era-of-growth-and-innovation/

20. Stagwell Inc. Form 10-K for the Year Ended December 31, 2025 (Media & Commerce segment; Assembly). https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000876883

21. Campaign / Storyboard18. "Global agency groups 2025 report card" (Publicis organic growth; WPP decline and GroupM→WPP Media rename; Dentsu flat; Havas gains), 2025. https://www.campaignlive.com/article/global-agency-groups-report-card-h1-2025-wpp-revenue-hit-publicis-strides/1930174

22. Basis Technologies / eMarketer. "Programmatic Advertising Trends" (U.S. programmatic >$270B in 2025; retail media and CTV growth), 2025–2026. https://basis.com/blog/7-programmatic-advertising-trends-shaping-2026

23. Research and Markets (via Yahoo Finance). "United States Digital Ad Spend Business Report 2026" (U.S. digital ad spend ~$361.9B in 2025), 2026. https://finance.yahoo.com/news/united-states-digital-ad-spend-151600495.html

24. U.S. Federal Trade Commission. "Omnicom Group / The Interpublic Group of Companies" case page and final consent order (~$13.5B deal; viewpoint-boycott restriction), 2025. https://www.ftc.gov/legal-library/browse/cases-proceedings/251-0049-omnicom-groupthe-interpublic-group-co

25. U.S. Federal Trade Commission. "FTC Announces Updated Endorsement Guides," 2023. https://www.ftc.gov/news-events/news/press-releases/2023/06/federal-trade-commission-announces-updated-advertising-guides-combat-deceptive-reviews-endorsements

26. U.S. Federal Communications Commission. "Public Inspection Files" (political/issue-ad records),

27. https://publicfiles.fcc.gov/

28. California Department of Justice. "California Consumer Privacy Act (CCPA), as amended by the CPRA," 2024. https://oag.ca.gov/privacy/ccpa

29. Horizon Media. "Independence / About," 2026. https://www.horizonmedia.com/

30. Goodway Group. "Our Story," 2026. https://www.goodwaygroup.com/our-story
31. PMG. "About PMG," 2026. https://www.pmg.com/about
32. Tinuiti. "About Us," 2026. https://tinuiti.com/about/
33. PMG. "Pursue Partnerships and Accountability, Not Principal-Based Buying," 2024. https://www.pmg.com/insights-and-news/principal-based-buying-pov