Ströer Media

What Ströer Media does

Ströer Media is a publicly traded German out-of-home (OOH) and digital advertising company headquartered in Cologne, listed on the Xetra exchange as Ströer SE & Co. KGaA. Founded in 1990 and operating with 1,001-5,000 employees, the company runs Germany's largest DOOH network, anchored by flagship asset 'The Whale' in Hamburg (Germany's largest single DOOH screen), alongside a national inventory of large-format posters, transit media, and street furniture. Ströer also owns t-online, Germany's leading news portal, extending its reach into owned digital publishing.

The company's offering is organized around three pillars: Außenwerbung (traditional and digital out-of-home advertising), Onlinewerbung (digital advertising across owned properties including t-online and stroeer-x.de), and Dialogmarketing (direct and dialog marketing services). Technology assets include a programmatic DOOH booking infrastructure and a suite of self-service planning tools (Motivdatenbank, Kreativsimulator, Digital Out of Home Planer, Plakatkosten-Planer, Druckkosten-Planer, Verkehrsmedien-Planer), complemented by the Ströer Creative Analyzer, an AI-based creative effectiveness tool.

Ströer generates revenue primarily through advertising bookings on a quote-based, multi-year contract model across OOH, DOOH, online, and dialog marketing formats. Go-to-market combines direct enterprise sales to brand advertisers (OTTO x ADIDAS, Audible, PRADA, RITTER SPORT, Tourism Australia, AOK, LORENZ), self-service digital booking tools for mid-market clients, and partnership channels serving German municipalities (Stadtmöblierung/Smart City), private property owners, and digital publishers. Historical growth has been driven by a sustained acquisition program spanning 2015-2018, including T-Online, Statista, and D+S Communication Center Management, supplemented by recent product launches (Self-Service-Portal für Kulturschaffende, Ströer Creative Analyzer) and ecosystem partnerships such as Exzellent Köln.

Name

Ströer Media

Legal name

Ströer SE & Co. KGaA

Website

https://stroeer.com

Company type

Public

Founded year

1990

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Ströer Media is a publicly traded German out-of-home and digital advertising company operating Germany's largest DOOH network, the t-online news portal, and integrated dialog marketing services for enterprise brand advertisers, cities, and property owners.

Ownership category

akta.pro rank

Product category

Out-of-Home Advertising

NAICS

Indoor and Outdoor Display Advertising (54185), Advertising Agencies (54181), Media Buying Agencies (541830)

SIC

Services-Advertising (7310), Services-Advertising Agencies (7311)

akta.pro primary industry

Out-of-Home (OOH), DOOH & Ambient Advertising (BPAFAAAI)

akta.pro secondary industries

Digital Out-of-Home (DOOH) Advertising (MPAAAKAB), Static Billboards & Posters (Roadside, Wallscapes) (BPAFALAA), Street Furniture Advertising (Bus Shelters, Kiosks, Benches, Phone Booths) (BPAFALAD), OOH Media Planning, Buying & Inventory Aggregation (BPAFALAJ)

Keywords

• Out-of-home advertising
• Digital out-of-home
• Online advertising
• Dialog marketing
• Programmatic DOOH

Headquarters

HQ city

Cologne

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Operations, Infrastructure, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Out-of-Home Advertising: Traditional billboard and outdoor advertising across Germany's largest OOH network. Includes large-format posters, transit advertising, and street furniture. Revenue generated through campaign bookings based on location, format, and duration.
2. Digital Out of Home (DOOH): Digital screen advertising including Germany's largest DOOH screen 'The Whale' in Hamburg. Programmatic and direct booking capabilities for digital displays in high-traffic locations.
3. Online Advertising: Digital advertising across owned digital properties including t-online (Germany's leading news portal), stroeer-x.de, and online marketing services.
4. Dialogmarketing: Direct marketing and dialog marketing services for customer engagement and communication campaigns.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

Ströer is a German media company that sells advertising across four channels: traditional out-of-home (OOH) advertising such as billboards and giant posters, Digital Out of Home (DOOH) advertising on digital screens (including Germany's largest DOOH screen 'The Whale' in Hamburg), online advertising through owned digital properties such as the t-online news portal, and dialog/direct marketing services. The company sells advertising inventory and integrated cross-channel campaigns to enterprise brand advertisers, and also operates a self-service digital booking platform with planning tools and an AI-powered creative analyzer.

Product overview

Ströer is a leading German media company offering a multi-platform advertising portfolio comprising three core service pillars: Außenwerbung (outdoor/billboard advertising), Onlinewerbung (digital/online advertising), and Dialogmarketing (direct marketing services). The company operates both traditional and digital out-of-home networks, including Digital Out of Home (DOOH) screens. Under its umbrella, Ströer owns t-online, a major German news portal. The product portfolio includes various planning and analysis tools including the AI-powered Ströer Creative Analyzer, Motivdatenbank, Kreativsimulator, Digital Out of Home Planer, Plakatkosten-Planer, Druckkosten-Planer, and Verkehrsmedien-Planer. Ströer also offers solutions for cities (Stadtmöblierung/Smart City) and partnerships for property owners and publishers.

Differentiator

Problem solved

Functional benefit

Products and services

• Außenwerbung (Outdoor Advertising) Traditional out-of-home advertising services including large-format posters, giant posters (Riesenposter), billboards, transit advertising, and other physical advertising spaces across Germany. Sold to brand advertisers seeking high-reach physical media placements.
• Digital Out of Home (DOOH) Digital out-of-home advertising on Ströer's national DOOH network, including large-format digital displays such as 'The Whale Hamburg' — Germany's largest DOOH screen. Supports programmatic and direct booking for digital displays in high-traffic German locations.
• Onlinewerbung (Online Advertising) Digital advertising services across Ströer's owned digital properties, including t-online (Germany's leading news portal) and stroeer-x.de. Sold to advertisers for online display, native, and digital campaign execution.
• Dialogmarketing (Dialog Marketing) Direct marketing and dialog marketing services that enable advertisers to run personalized customer engagement and direct communication campaigns with target audiences.
• t-online Germany's leading news portal, owned and operated by Ströer as a sub-brand. Provides a digital publishing platform and advertising inventory that monetizes through Ströer's online advertising offering. Won the German Brand Award 2026.
• Ströer Creative Analyzer Standalone AI-powered creative analysis tool that evaluates advertising creative effectiveness and performance predictions. Used by advertisers and creative teams to test and optimize advertising content before deployment across Ströer's channels.
• Self-Service-Portal für Kulturschaffende (Self-Service Portal for Cultural Creators) A dedicated self-service portal launched in June 2026 that allows cultural creators (Kulturschaffende) to independently plan, book, and manage advertising campaigns across Ströer's advertising network without going through a traditional sales-led process.

Named customers7 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability1 record

Feature7 records

Partnerships

One partnership is on record.

• Exzellent KölnminorStrategic or Co-development Partner · 17 June 2026Economic alliance of 25 leading companies in Cologne, Germany, founded to promote economic excellence and sustainability in the Cologne region. Ströer participates as one of the founding members of this business alliance focused on economic development.

Scale indicators2 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Lamar Advertising Company: U.S. public billboard and outdoor advertising operator with growing DOOH presence. Comparable as a publicly listed, asset-heavy OOH network monetizing roadside and digital inventory.
• Clear Channel Outdoor Holdings: U.S.-listed pure-play OOH operator with European presence. Competes with Ströer on billboards, street furniture and digital out-of-home inventory sold to the same advertiser base.
• JCDecaux: Global leader in out-of-home advertising with operations across Europe including Germany. Directly comparable on street furniture, billboards and DOOH networks, and competes for the same municipal and brand-advertiser budgets.
• Outfront Media: North American OOH and DOOH operator offering transit, billboard and digital formats. Closely comparable business model combining physical inventory with programmatic digital sales.

Emerging players

• VIOOH: Independent programmatic DOOH trading platform active across European markets. Directly comparable as the demand-side technology layer competing for the same DOOH budgets Ströer monetizes.
• Place Exchange: U.S.-based programmatic OOH supply-side platform. Comparable as a neutral, programmatic alternative to Ströer's owned DOOH sales infrastructure, addressing the same advertiser demand.
• Hivestack: Programmatic DOOH ad exchange serving supply-side partners globally. Comparable as a tech-led buyer of DOOH inventory that competes for advertiser attention against Ströer's direct sales channel.

Broad incumbents

• Publicis Groupe: Global advertising holding company with media buying, planning and DOOH capabilities. Comparable as a broader incumbent competing for advertiser OOH/DOOH spend, though Ströer is more specialized in owned physical inventory.

Regional players

• Focus Media: China's largest elevator and DOOH advertising network. Comparable in operating an urban, building- and transit-anchored digital ad inventory but serves a different geography than Ströer.
• Wall AG: German family-owned OOH and street furniture specialist. Competes directly with Ströer for municipal advertising contracts in German cities but with a more limited national footprint.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/stroeermedia
• Facebookfacebook.com/Stroeer.Group
• LinkedInlinkedin.com/company/715588

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A34 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Ströer Media