Horizon Media

aid: horizon-media
name: Horizon Media
description: 'Horizon Media is the largest independent media agency in the United States, founded in 1989 by Bill Koenigsberg
  and headquartered at 75 Varick Street in New York with offices in Los Angeles and Toronto. The agency employs roughly 2,300+
  people, is ranked the third largest US media agency by COMvergence, and manages an estimated $8.7 billion in billings. Horizon
  operates a portfolio of specialty units (Horizon Next for performance, Blue Hour Studios for social/creator, Night Market
  for retail media, Scout Sports for sponsorship via Horizon Sports & Experiences, and the WHY Group for cultural insights)
  and runs a proprietary data and AI stack anchored by the Blu platform. In 2025 Horizon formed Horizon Global, a 50/50 US
  joint venture with Havas positioned at roughly $20 billion in combined billings, merging Blu with Havas Converged into a
  shared platform branded BluConverged, and is also building Horizon OS (Open Sphere) as an orchestration layer over the programmatic
  ad-tech stack. In June 2026 Horizon launched an agentic integration layer around Blu — a set of Blu audience APIs, MCP endpoints
  and agent-based integration points that ad-tech, media-owner and martech partners can build on — but that surface is partner-gated:
  Horizon publishes no developer portal, no API reference, no OpenAPI or other machine-readable contract, no SDKs in any public
  registry, and its GitHub organization has zero public repositories. The only route to the API is the corporate contact form.
  All platforms documented here are proprietary systems reachable through a commercial partnership rather than open developer
  APIs.'
type: Index
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/horizon-media.png
url: https://raw.githubusercontent.com/api-evangelist/horizon-media/refs/heads/main/apis.yml
humanURL: https://www.horizonmedia.com/
created: '2025-03-01'
modified: '2026-08-12'
specificationVersion: '0.20'
tags:
- Advertising
- Media Agency
- Media Planning
- Media Buying
- Programmatic
- Retail Media
- Sports Marketing
- Social Media
- Influencer Marketing
- Cultural Intelligence
- Data Platform
- AI Platform
- MarTech
- AdTech
- Independent Agency
apis: []
common:
- type: TrustCenter
  url: security/horizon-media-trust-center.yml
- type: DomainSecurity
  url: security/horizon-media-domain-security.yml
- type: Conformance
  url: conformance/horizon-media-conformance.yml
- type: Compliance
  url: https://trust.horizonmedia.com/
  description: 'Third-party-audited compliance program published on the Horizon Media trust center: SOC 2 Type 2, ISO/IEC
    27001:2022, ISO/IEC 27701:2019, ISO/IEC 42001:2023, HITRUST and HIPAA, audited by Schellman.'
- type: Packages
  url: packages/horizon-media-packages.yml
  description: Registry sweep of npm, PyPI and the HorizonMedia GitHub organization — zero first-party client libraries exist.
    No SDKs pointer is emitted.
- type: Plans
  url: plans/horizon-media-plans-pricing.yml
- type: RateLimits
  url: rate-limits/horizon-media-rate-limits.yml
- type: LLMsTxt
  url: llms/horizon-media-llms.txt
  description: Generated by API Evangelist from this profile. Horizon Media serves no llms.txt of its own (https://www.horizonmedia.com/llms.txt
    returns 404).
- type: PrivacyPolicy
  url: https://www.horizonmedia.com/privacy-policy
- type: TermsOfService
  url: https://www.horizonmedia.com/terms-of-use
- type: Website
  url: https://www.horizonmedia.com/
- type: Independence
  url: https://www.horizonmedia.com/independence
- type: Innovation
  url: https://www.horizonmedia.com/innovation
- type: Integrity
  url: https://www.horizonmedia.com/integrity
- type: Inclusion
  url: https://www.horizonmedia.com/inclusion
- type: Intentionality
  url: https://www.horizonmedia.com/intentionality
- type: Insights
  url: https://www.horizonmedia.com/insights
- type: Contact
  url: https://www.horizonmedia.com/interested
- type: Sitemap
  url: https://www.horizonmedia.com/sitemap.xml
- type: LinkedIn
  url: https://www.linkedin.com/company/horizon-media
- type: GitHub
  url: https://github.com/horizonmedia
  description: github.com/HorizonMedia (org created 2016-10-12) is publicly visible but publishes 0 public repositories, 0
    public gists and no public members; 35 followers as of the 2026-08-12 API probe.
- type: ProprietaryPlatform
  title: Blu
  url: https://www.horizonmedia.com/innovation
  description: Horizon's flagship connected marketing and AI platform. Originally launched in 2020 as an advanced data platform
    with machine learning, Blu has since evolved into a "transparent business consultancy" platform that analyzes business
    goals through a media lens, builds and analyzes custom audiences, runs competitive analysis, and answers strategic business
    questions. Architecturally Blu organizes data in a flat lattice structure for AI access, lists data sources and model
    details for transparency, operates inside each client's own cloud and data walls, taps multiple LLMs, and uses TransUnion
    data as a "data spine." Creative assembly, scoring, and generation are in pilot via APIs, MCPs, and agentic options. On
    2026-06-18 Horizon launched an agentic integration layer on top of Blu — Blu audience APIs, MCP endpoints and agent-based
    integration points that partners plug into directly. Smartly is the first SaaS activation partner, embedding Blu audience
    segments into social, commerce and CTV campaign workflows via the Blu Audience API; participating vendors include Affinity
    Solutions, Innovid, Kartel, Kochava, Magnite, Predactiv, Sightly, Smartly, Vidmob, Vurvey Labs and ZeroToOne.AI. None
    of this surface is publicly documented — no endpoint, specification, tool manifest or reference is published anywhere;
    access is by commercial partnership only.
- type: ProprietaryPlatform
  title: BluConverged
  url: https://www.horizonmedia.com/innovation
  description: Joint AI and data platform created by merging Horizon's Blu with Havas's Converged marketing operating system,
    powering the Horizon Global JV.
- type: ProprietaryPlatform
  title: Horizon OS (Open Sphere)
  url: https://www.horizonmedia.com/innovation
  description: Ad-tech orchestration and intelligence layer that sits above the programmatic stack, dynamically routing ad
    spend across DSPs, SSPs, verification, data, and measurement partners (Trade Desk, DV360, Amazon, Clearline, etc.) based
    on real-time performance signals. Horizon has issued RFIs to 200+ potential partners and is in active pilot integration.
    Monetization is on decision-making intelligence rather than inventory markups.
- type: ProprietaryPlatform
  title: Swell Audience Network
  url: https://digiday.com/media-buying/horizons-blue-hour-social-shop-partners-with-platform-key-to-launch-talent-management-tool/
  description: Talent and audience management platform built by Blue Hour Studios with Platform Key, providing programmatic
    audience segmentation, demographics, geolocation, and third-party analytics across health, wellness, fashion, sports,
    and music verticals.
- type: ProprietaryPlatform
  title: Cogent
  url: https://www.horizonmedia.com/innovation
  description: Horizon's proprietary data and intelligence platform brand, sitting alongside Blu in the agency's data and
    analytics stack.
- type: ProprietaryPlatform
  title: Big
  url: https://www.horizonmedia.com/innovation
  description: Horizon's proprietary creative platform brand used for creative development and optimization within the agency's
    tech stack.
- type: ProprietaryPlatform
  title: Wave
  url: https://www.horizonmedia.com/innovation
  description: Horizon's cultural insights platform brand, associated with the WHY Group cultural intelligence practice that
    publishes work such as the annual Subculture Field Guide.
- type: Division
  title: Horizon Next
  url: https://www.horizonmedia.com/insights/horizon-next-partners-with-artsai-on-proprietary-cross-platform-audio-measurement-framework
  description: Horizon Media's performance marketing unit, which has built a proprietary cross-platform audio measurement
    framework in partnership with ArtsAI.
- type: Division
  title: Blue Hour Studios
  url: https://digiday.com/media-buying/horizons-blue-hour-social-shop-partners-with-platform-key-to-launch-talent-management-tool/
  description: Horizon's social content and creator-economy division, founded in 2019 and led by Sarah Bachman. Operates the
    Swell Audience Network talent management platform via partnership with Platform Key.
- type: Division
  title: Night Market
  url: https://www.horizonmedia.com/insights/night-market-introduces-first-ever-standardized-measurement-across-retail-media-networks-allowing-real-time-campaign-performance-assessment
  description: Horizon's retail media practice, which introduced a standardized measurement framework across retail media
    networks for real-time campaign performance assessment.
- type: Division
  title: Horizon Sports & Experiences (HS&E)
  url: https://www.horizonmedia.com/
  description: Horizon Media's sports, entertainment, and live-experiences holding group, parent of Scout Sports & Entertainment
    and related sponsorship and partnerships brands.
- type: Division
  title: Scout Sports & Entertainment
  url: https://www.horizonmedia.com/
  description: Sponsorship and sports-marketing practice operating under Horizon Sports & Experiences.
- type: Division
  title: WHY Group
  url: https://www.horizonmedia.com/insights/passion-over-age-the-2024-subculture-field-guide-urges-marketers-to-embrace-niche-over-the-norm
  description: Horizon's strategy and cultural-intelligence practice; publisher of the annual Subculture Field Guide and ongoing
    cultural deep dives.
- type: JointVenture
  title: Horizon Global
  url: https://digiday.com/marketing/why-horizon-and-havas-are-joining-forces/
  description: 50/50 US joint venture between Horizon Media and Havas announced in September 2025, focused exclusively on
    US operations for global accounts. Bob Lord serves as interim CEO, Renata Spackova as global COO, with a board including
    Bill Koenigsberg and Yannick Bolloré. Expected to command roughly $20 billion in annual billings and runs on the combined
    BluConverged platform.
- type: Leadership
  title: Bill Koenigsberg
  url: https://www.horizonmedia.com/
  description: Founder, CEO and Chairman of Horizon Media (founded 1989).
- type: Leadership
  title: Bob Lord
  url: https://www.horizonmedia.com/
  description: President of Horizon Holdings and interim CEO of the Horizon Global JV with Havas.
- type: Leadership
  title: Domenic Venuto
  url: https://www.horizonmedia.com/insights/horizon-media-taps-tech-titan-domenic-venuto-as-evp-chief-of-product-data
  description: EVP, Chief of Product & Data, leading Horizon's product and data org.
- type: Leadership
  title: Tim Rich
  url: https://www.horizonmedia.com/insights/horizon-media-announces-tim-rich-as-new-head-of-ai-solutions
  description: Head of AI Solutions.
- type: Partner
  title: TransUnion
  url: https://www.horizonmedia.com/innovation
  description: Identity and audience data spine underlying the Blu platform.
- type: Partner
  title: Platform Key
  url: https://digiday.com/media-buying/horizons-blue-hour-social-shop-partners-with-platform-key-to-launch-talent-management-tool/
  description: Talent platform partner powering Blue Hour Studios' Swell Audience Network.
- type: Partner
  title: ArtsAI
  url: https://www.horizonmedia.com/insights/horizon-next-partners-with-artsai-on-proprietary-cross-platform-audio-measurement-framework
  description: Measurement partner for Horizon Next's cross-platform audio measurement framework.
- type: Partner
  title: Havas
  url: https://digiday.com/marketing/why-horizon-and-havas-are-joining-forces/
  description: Joint-venture partner in the Horizon Global US JV.
- type: Press
  title: Horizon and Havas joint venture
  url: https://digiday.com/marketing/why-horizon-and-havas-are-joining-forces/
- type: Press
  title: Blu AI platform as transparent business consultancy
  url: https://digiday.com/marketing/horizons-blu-ai-platform-focuses-on-being-a-transparent-business-consultancy/
- type: Press
  title: Horizon OS (Open Sphere) ad-tech orchestration platform
  url: https://digiday.com/future-of-tv-briefing/future-of-marketing-briefing-horizon-media-is-building-a-platform-to-orchestrate-ad-tech-from-a-single-command-center/
- type: Press
  title: Horizon Global red-ocean differentiation
  url: https://digiday.com/marketing/media-buying-briefing-how-horizon-and-havas-jv-aims-to-distinguish-itself-in-a-red-ocean/
- type: Press
  title: Horizon Media launches agentic orchestration layer for real-time media decisioning (2026-06-18)
  url: https://www.prnewswire.com/news-releases/horizon-media-launches-agentic-orchestration-layer-for-real-time-media-decisioning-302803722.html
  description: The primary source for Horizon's agentic integration layer — Blu audience APIs, MCP standards and agent-based
    connections offered to partners. No endpoint, spec or documentation URL is given in the announcement.
- type: Press
  title: Smartly becomes first SaaS partner for Horizon's Blu audience API
  url: https://ppc.land/smartly-becomes-first-saas-partner-for-horizons-blu-audience-api/
maintainers:
- FN: API Evangelist
  url: https://apievangelist.com
  email: info@apievangelist.com
x-enrichment:
  date: '2026-08-12'
  status: minimal
  artifacts_added: 6
  pass: local-v1
x-coverage:
  state: gated
  reason: sales-gate
  detail: Horizon markets Blu audience APIs and MCP integration points to partners (2026-06-18 launch), but the only route
    to them is the corporate "interested" contact form — there is no developer subdomain (developer/api/docs/blu/partners.horizonmedia.com
    all fail to resolve), no reference, and no spec at any probed path.
  evidence:
  - url: https://www.horizonmedia.com/interested
    status: 200
  - url: https://www.horizonmedia.com/openapi.json
    status: 404
  - url: https://www.horizonmedia.com/llms.txt
    status: 404
  - url: https://www.horizonmedia.com/.well-known/api-catalog
    status: 404
  - url: https://api.github.com/orgs/HorizonMedia/repos
    status: 200
  checked: '2026-08-12'