Rock&Stars
Rock&Stars is an owner-managed Hamburg marketing agency serving German Mittelstand and enterprise clients with integrated strategy, creation, performance, and AI services, delivered through its proprietary RockEngine platform and an in-house expert team.
- Company typePrivate
- Founded2014
- HeadquartersHamburg, Germany
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Rock&Stars does
Rock&Stars (rock&stars digital GmbH) is a Hamburg-based, owner-managed full-service marketing agency founded in 2014 by Stefanie Polster, serving German Mittelstand and large enterprise (Konzern) clients across DACH and Scandinavia. The firm operates four service pillars — strategy (Klarheit), creation and visibility (Kreation & Sichtbarkeit), performance and growth (Performance & Wachstum), and AI marketing intelligence (KI & Marketing-Intelligence) — delivered through interdisciplinary expert teams with dedicated Success Managers per client under retainer, project-based, or time-and-materials billing.
The agency's central technical asset is RockEngine, a proprietary AI-powered marketing operating system that aggregates data from Brandwatch, GA4, Meta Business, Google Ads, CRM systems, and The Trade Desk, then runs dozens of specialized expert agents across text, image, and video modalities. RockEngine uses a model-agnostic architecture selecting among OpenAI, Anthropic, Google Gemini, and Mistral models per task, is self-hosted in Germany with EU AI Act compliance, and preserves institutional knowledge through a collective memory layer so that learnings persist across personnel changes and multi-year client tenures.
Revenue is generated from agency retainers, project fees, and individual consulting engagements for strategic marketing, organizational development, and digital transformation. Acquisition runs through a sales-led motion combining the rockandstars.de website, the KI Visibility Check lead magnet, peer-level outreach by the COO and unit leads, and the 'Marketing mit KI' podcast (88+ weekly episodes). Notable public clients include Sephora (DACH & Nordics social media), Personio (HR-Tech thought leadership), Vonovia, Westfield Hamburg-Überseequartier, bofrost*, Color Line, Ricosta, Purelei, CUP VERDE, and Port des Lumi\u00e8res. The company has operated without external venture or private equity capital and is structured as a private limited company registered in Kiel.
Rock&Stars firmographics
Firmographics- Name
- Rock&Stars
- Legal name
- rock&stars digital GmbH
- Website
- https://rockandstars.de
- Company type
- Private
- Founded year
- 2014
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Rock&Stars is an owner-managed Hamburg marketing agency serving German Mittelstand and enterprise clients with integrated strategy, creation, performance, and AI services, delivered through its proprietary RockEngine platform and an in-house expert team.
- Ownership category
- akta.pro rank
Rock&Stars industry classification
Industry- Product category
- Marketing Agency Services
- NAICS
- Advertising Agencies (541810), Advertising Agencies (54181), Marketing Consulting Services (541613)
- SIC
- Services-Advertising Agencies (7311), Services-Advertising (7310), Services-Management Consulting Services (8742)
- akta.pro primary industry
- Customer, Marketing & Sales Consulting (BPAHACAG)
- akta.pro secondary industry
- Data, Analytics & AI Consulting (BPAHAEAF)
Keywords
Where Rock&Stars is headquartered
LocationHeadquarters
- HQ city
- Hamburg
- HQ country
- Germany
- HQ region
- Europe
Offices1 record
Markets served
Rock&Stars business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Marketing Agency Retainers and Project Fees: Full-service marketing agency revenue derived from ongoing client retainers, project-based engagements, and consulting mandates across strategy, creation, performance, and AI services. The agency structures engagements with dedicated Success Managers, interdisciplinary expert teams, and flexible billing options (aufwand/time-and-materials, projektbasiert/project-based, or Retainer).
- Consulting and Advisory: Individual consulting engagements for strategic consulting, organizational development, marketing/sales consulting, and digital transformation — billed flexibly as time-based, project, or retainer.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Hybrid | Multi-year contract | Custom billing arrangements based on engagement type |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels6 records
Rock&Stars product offering
Product offeringCore offering
Rock&Stars is a full-service marketing agency delivering integrated services across four pillars: Klarheit & Strategie (clarity and strategy), Kreation & Sichtbarkeit (creation and visibility), Performance & Wachstum (performance and growth), and KI & Marketing-Intelligence (AI and marketing intelligence). The agency operates through its proprietary RockEngine, an AI-powered operating system that aggregates marketing data, deploys specialized AI agents, and preserves institutional knowledge across client projects. Service offerings span consulting, marketing conception, corporate identity, web design, influencer marketing, GEO, paid media (Google Ads, social, programmatic), SEO, analytics, CRO, website relaunch, and AI consulting.
Product overview
Rock&Stars is a full-service marketing agency organized around four service pillars — Klarheit & Strategie, Kreation & Sichtbarkeit, Performance & Wachstum, and KI & Marketing-Intelligence — connected through the proprietary AI-powered RockEngine operating system. The portfolio spans consulting, marketing conception, corporate identity, web design, influencer marketing, GEO, Google Ads, SEO, social advertising, programmatic advertising, tracking and analytics, CRO, website relaunch, AI consulting, and the KI Visibility Check diagnostic tool. The RockEngine aggregates data from all marketing disciplines and uses specialized AI agents for decision preparation and institutional knowledge retention, tying the entire service offering together as the underlying infrastructure.
Differentiator
Problem solved
Functional benefit
Brands
- RockEngine: An AI-powered operating system for marketing that serves as the infrastructure for the agency's work, combining data from all marketing disciplines with specialized AI agents.
Products and services
- Consulting
Quantifiable outcome
- Sephora: +69,864 TikTok followers, +94% reach above industry average on TikTok, +46% organic reach on Instagram, +67% engagement above benchmark
- +3 more outcomes
Companies that use Rock&Stars
Customer profileNamed customers10 records
Segments3 records
Ideal customer profiles3 records
Rock&Stars technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration5 records
AI capability9 records
Feature4 records
Rock&Stars partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered core.
- Google (Analytics, Ads, Search Console)coreGoogle tools (GA4, Google Ads, Search Console) are core data integrations within the RockEngine, providing performance and traffic data for the agency's analytics and reporting workflows.
- Meta Business SuitecoreMeta Business Suite is integrated into the RockEngine as a primary data source for social advertising analytics and campaign management across Facebook and Instagram.
- OpenAIcoreOpenAI models are used within the RockEngine's multi-model AI architecture, selected automatically for tasks where they perform best.
- AnthropiccoreAnthropic's Claude models are used within the RockEngine's multi-model AI architecture, selected for tasks where they outperform other models.
- Google GeminicoreGoogle Gemini is part of the multi-model AI engine in RockEngine, alongside OpenAI, Anthropic, and Mistral models.
- Mistral AIcoreMistral AI models are integrated into the RockEngine's model-agnostic AI architecture as one of several model providers.
- Facebook / Meta (Advertising Platform)coreMeta's advertising platform (Facebook & Instagram Ads) is a core channel for social advertising campaigns, managed with pixel tracking and retargeting as part of the performance marketing stack.
Scale indicators5 records
Recent moves6 records
Expansion highlights6 records
Rock&Stars competitors and assessment
Company assessmentEmerging players
- Jellyfish: Digital marketing partner heavily invested in AI, data platforms and Google/Meta performance, overlapping with Rock&Stars' tech-enabled full-service model.
- Brainlabs: Data-and-technology-led performance marketing agency emphasizing proprietary tools and automation, comparable to Rock&Stars' RockEngine-driven, performance-focused approach.
Broad incumbents
- Jung von Matt: Large German full-service creative and brand agency network serving major enterprises; broader and larger than Rock&Stars but overlaps in brand, creation and marketing services.
- Fischer Appelt: German communications and marketing agency group offering brand, content and PR across the Mittelstand and enterprise segments Rock&Stars targets.
- Serviceplan Group: Germany's largest independent agency group spanning creative, media and digital; a broad incumbent competing for the same DACH enterprise marketing budgets.
Direct peers
- Diva-e: German digital experience and performance marketing agency serving Mittelstand and enterprise clients, overlapping with Rock&Stars in SEO, performance, and digital transformation.
- Dept Agency: A tech-and-data-driven digital marketing agency combining creative, performance and proprietary technology; directly comparable to Rock&Stars' AI-enabled full-service positioning, with strong DACH presence.
- SinnerSchrader (Accenture Song): Hamburg-based digital agency delivering strategy, creation and technology; same city and core service overlap with Rock&Stars' full-service digital offering.
- thjnk: German creative and brand agency with offices in Hamburg serving major brands, directly comparable in brand strategy, creation and campaign work.
Regional players
- TERRITORY: German content and brand marketing agency (Bertelsmann) serving DACH enterprises, competing regionally across content, brand and digital services.
Market position
Strengths5 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
Rock&Stars social profiles
Digital presenceRock&Stars financial estimates
Financial estimateRevenue estimate
Valuation estimate
Rock&Stars leadership team
Management profileNumber of profiles
Profiles8 records
Rock&Stars funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Rock&Stars M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Rock&Stars
What does Rock&Stars do?
Rock&Stars is a full-service marketing agency delivering integrated services across four pillars: Klarheit & Strategie (clarity and strategy), Kreation & Sichtbarkeit (creation and visibility), Performance & Wachstum (performance and growth), and KI & Marketing-Intelligence (AI and marketing intelligence). The agency operates through its proprietary RockEngine, an AI-powered operating system that aggregates marketing data, deploys specialized AI agents, and preserves institutional knowledge across client projects. Service offerings span consulting, marketing conception, corporate identity, web design, influencer marketing, GEO, paid media (Google Ads, social, programmatic), SEO, analytics, CRO, website relaunch, and AI consulting.
Is Rock&Stars a public or private company?
Rock&Stars is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Rock&Stars founded?
Rock&Stars was founded in 2014. It employs 11 to 50 people.
Where is Rock&Stars based?
Rock&Stars is headquartered in Hamburg, Germany, in the Europe region.
How does Rock&Stars make money?
Two revenue lines are on record. Marketing Agency Retainers and Project Fees are the primary driver. The others are consulting and Advisory.
Who are Rock&Stars's main competitors?
Emerging players on record are Jellyfish and Brainlabs. Broad incumbents are Jung von Matt, Fischer Appelt and Serviceplan Group. Direct peers are Diva-e, Dept Agency, SinnerSchrader (Accenture Song) and thjnk. TERRITORY is listed as a regional player.
Does Rock&Stars have an API?
No public API is recorded for Rock&Stars.
What industry is Rock&Stars in?
Rock&Stars's product category is Marketing Agency Services. Its primary akta.pro industry code is BPAHACAG, Customer, Marketing & Sales Consulting, with a secondary code of BPAHAEAF, Data, Analytics & AI Consulting. Its NAICS code is 541810 and its SIC code is 7311.