Data Marketing School
Data Marketing School is a France-based freelance consulting practice founded by Lucas Rollin in 2023, specializing in Google Tag Manager implementation, server-side tagging, GDPR-compliant consent management, and conversion tracking for e-commerce, SaaS, and lead generation websites. The business combines project-based consulting with free and paid educational content.
- Company typePrivate
- Founded2023
- HeadquartersParis, France
- Headcount1–10
- GTM typeB2B
- OfferingServices
What Data Marketing School does
Data Marketing School is a France-based freelance consulting practice founded by Lucas Rollin in 2023 and operated as a sole proprietorship (EURL DMS) registered in Ploufragan, France. The company specializes in Google Tag Manager (GTM) implementation and server-side tracking services for e-commerce, SaaS, and lead generation websites. Its core offering is end-to-end freelance consulting covering tracking audits, GTM Web and Server-Side configuration, Google Analytics 4 (GA4) integration, consent management platform (CMP) selection and configuration, and Google Consent Mode V2 implementation for GDPR compliance.
The technical core is GTM expertise spanning client-side and server-side tagging, with documented implementation methodologies across multiple CMPs (Didomi, Axeptio, OneTrust, Cookiebot), server-side GTM hosting platforms (Addingwell and Stape), and conversion tracking setups for nine advertising platforms including Google Ads, Meta, TikTok, Microsoft, Pinterest, Snapchat, and LinkedIn. The firm holds certified partner status with Didomi, Addingwell, and Matomo. Supplementary products include a free French-language GTM Server-Side training course, paid 30-minute consulting and debug sessions, open-source GTM templates published on GitHub, a Discord community for tracking practitioners, and an active YouTube channel of video tutorials.
Revenue is generated primarily through project-based freelance consulting engagements with custom pricing, supplemented by a smaller stream of self-serve consulting sessions and courses sold through courses.data-marketing-school.com. Customer acquisition is community-led and content-driven, relying on SEO-optimized blog content, YouTube, Discord, and organic discovery calls to convert inbound interest into paid engagements. There are no external investors, funding rounds, or institutional shareholders, and the company operates with a single practitioner.
Data Marketing School firmographics
Firmographics- Name
- Data Marketing School
- Legal name
- EURL DMS
- Website
- https://data-marketing-school.com
- Company type
- Private
- Founded year
- 2023
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Data Marketing School is a France-based freelance consulting practice founded by Lucas Rollin in 2023, specializing in Google Tag Manager implementation, server-side tagging, GDPR-compliant consent management, and conversion tracking for e-commerce, SaaS, and lead generation websites. The business combines project-based consulting with free and paid educational content.
- Ownership category
- akta.pro rank
Data Marketing School industry classification
Industry- Product category
- Marketing analytics and tag management consulting
- NAICS
- Custom Computer Programming Services (541511), Computer Training (61142)
- SIC
- Services-Computer Programming, Data Processing, Etc. (7370), Services-Educational Services (8200)
- akta.pro primary industry
- Consent, Preference & Privacy Management (CMP) (BPAFAFAL)
- akta.pro secondary industry
- Digital Learning Content Development (eLearning, Labs, Simulations) (BPAEANAD)
Keywords
Where Data Marketing School is headquartered
LocationHeadquarters
- HQ city
- Paris
- HQ country
- France
- HQ region
- Europe
Offices2 records
Markets served
Data Marketing School business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations
Revenue model
- Freelance Consulting Services: Project-based consulting engagements for tracking audits, GTM implementation, GDPR compliance, CMP setup, Consent Mode V2 configuration, and server-side tagging. Services offered include audit and diagnosis, implementation and configuration, compliance and consent management, and monitoring and continuous optimization.
- Online Training Courses: Paid online training programs including a free GTM Server Side training in French and potentially other paid courses. Discovery calls and consulting/debug sessions available for purchase.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Freelance consulting services - custom project-based pricing |
| Other | Pay-as-you-go | Consulting/Debug Session - 30 minutes |
| Freemium | Pay-as-you-go | Free GTM Server Side Training (French) |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels6 records
Data Marketing School product offering
Product offeringCore offering
Data Marketing School is a solo freelance consulting practice (operating as EURL DMS in France) that specializes in Google Tag Manager implementation, server-side tracking deployment, and GDPR/consent compliance for e-commerce, SaaS, and lead-generation websites. The founder, Lucas Rollin, delivers tracking audits, GTM configuration, Consent Mode v2 and CMP setup, and continuous monitoring engagements, supplemented by an online training platform offering a French-language GTM Server-Side course.
Product overview
Data Marketing School is a freelance consulting practice founded by Lucas Rollin, centered on Google Tag Manager implementation and server-side tracking services. The core offering is freelance GTM consulting, which encompasses four service areas: tracking audits and diagnosis, GTM implementation and configuration, consent management and GDPR compliance, and ongoing monitoring and optimization. This is supported by paid add-ons including consulting sessions and discovery calls. The business also maintains a portfolio of free educational resources — the Data Marketing School Blog (tutorials on GTM, GA4, server-side tagging, and advertising platforms), a free GTM Server-Side training course, GTM templates on GitHub, a Discord community, and a YouTube channel. Additionally, a paid GTM Server-Side training course is offered. The Addingwell GTM & DataLayer Shopify application is referenced as a recommended tool for implementing GTM on Shopify stores.
Differentiator
Problem solved
Functional benefit
Products and services
- Freelance Google Tag Manager Services End-to-end freelance GTM consulting for e-commerce, SaaS, and lead-generation sites, covering tracking audits, GTM implementation, DataLayer design, server-side GTM migration, Consent Mode v2 and CMP setup, and continuous monitoring. Delivered directly by founder Lucas Rollin on a custom, project-quoted basis.
- Consulting and Debug Session (30 minutes) A 30-minute paid one-on-one session with Lucas Rollin for hands-on debugging, troubleshooting, or expert guidance on Google Tag Manager and server-side tracking issues. Purchased through the courses platform and aimed at marketers and developers needing targeted expert help.
- GTM Server-Side Training Course (French) Online self-paced training course in French covering Google Tag Manager server-side implementation, delivered via the courses.data-marketing-school.com platform. Targeted at French-speaking marketers, developers, and freelancers who want to upskill in server-side tracking, and bundled with access to 30-minute paid consulting/debug sessions for hands-on support.
Quantifiable outcome
- +200% revenue growth for MyBlend e-commerce client after server-side tracking implementation
- +2 more outcomes
Companies that use Data Marketing School
Customer profileNamed customers3 records
Segments3 records
Ideal customer profiles3 records
Data Marketing School technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration19 records
Feature5 records
Data Marketing School partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core.
- DidomicoreDidomi is a consent management platform (CMP) provider. Lucas Rollin is a Didomi Certified Partner, indicating expertise in implementing Didomi for GDPR compliance and Consent Mode V2. Didomi's CMP is one of the tools with which Lucas works on client missions for consent management configuration.
- AddingwellcoreAddingwell provides server-side GTM hosting and tag management solutions. Lucas Rollin is an Addingwell Certified Partner. Addingwell is featured as a recommended tool for GTM Server-Side implementation, with detailed tutorials on the blog for configuring Addingwell containers. Referrals and affiliate links are present.
- MatomocoreMatomo is a GDPR-compliant analytics platform. Lucas Rollin is a Matomo Implementation Partner, indicating expertise in Matomo setup and implementation. The blog includes tutorials for setting up Matomo Analytics with Google Tag Manager and Matomo Server-Side tracking.
- StapecoreStape provides server-side GTM hosting solutions. Referenced as an alternative to Addingwell for sGTM hosting. Lucas provides detailed tutorials for configuring Stape containers and custom domains, with affiliate links present in the blog content.
Scale indicators3 records
Recent moves6 records
Expansion highlights5 records
Data Marketing School competitors and assessment
Company assessmentOthers
- Didomi: Didomi is a consent management platform and a Core certified partner of Data Marketing School. It is an ecosystem participant whose product DMS implements for clients, not a direct competitor.
- Stape: Stape is a server-side GTM hosting provider and a Core technology partner. Like Addingwell, it provides the sGTM infrastructure DMS configures for clients — an ecosystem participant, not a competitor.
- OneTrust: OneTrust is a leading enterprise consent and privacy management platform. Data Marketing School is a partner implementing OneTrust CMPs for clients — an enabling ecosystem peer rather than a competitor.
- Addingwell: Addingwell is a server-side GTM hosting platform and a Core technology partner of Data Marketing School. It sits one layer below the practice in the value chain, providing the infrastructure that DMS implements for clients — an enabling, not competing, peer.
Direct peers
- Simo Ahava (10x Helsinki): Simo Ahava is the most prominent independent GTM/sGTM consultant and educator globally, publishing detailed technical content and serving enterprise clients on server-side tagging. He is the closest direct peer in terms of niche specialization, content-led authority, and freelance consulting model.
- MeasureSchool: MeasureSchool is a leading analytics education brand producing YouTube content and courses on GA4, GTM, and data layers. It competes for the same audience of practitioners and small-business clients seeking training and implementation support.
- Loves Data: Loves Data is a Google Analytics training and consultancy serving the same SMB/mid-market segment with courses and implementation services on GA4, GTM, and Google Ads tracking — a directly comparable services-plus-education model.
- Analytics Mania (Julius Fedorovicius): Analytics Mania is a GA4/GTM education and consulting practice offering courses, templates, and implementation services — directly mirroring Data Marketing School's content-plus-consulting model in the same technical niche.
Broad incumbents
- Bounteous: Bounteous is a full-service digital experience and analytics agency offering enterprise-scale GTM, GA4, and CDP implementations. It is a broad incumbent in the same analytics-services space, serving larger clients than the freelance anchor.
- Cardinal Path (Merkle): Cardinal Path, now part of Merkle, is an analytics consulting firm offering enterprise GA4, GTM, and attribution services. It competes for the same client budget pool but at a much larger scale and with broader services.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks6 records
Key highlights5 records
Customer concentration
Data Marketing School social profiles
Digital presenceData Marketing School compliance and trust
Trust signalCompliance1 record
Data Marketing School financial estimates
Financial estimateRevenue estimate
Valuation estimate
Data Marketing School leadership team
Management profileNumber of profiles
Profiles1 record
Data Marketing School funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Data Marketing School 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 Data Marketing School
What does Data Marketing School do?
Data Marketing School is a solo freelance consulting practice (operating as EURL DMS in France) that specializes in Google Tag Manager implementation, server-side tracking deployment, and GDPR/consent compliance for e-commerce, SaaS, and lead-generation websites. The founder, Lucas Rollin, delivers tracking audits, GTM configuration, Consent Mode v2 and CMP setup, and continuous monitoring engagements, supplemented by an online training platform offering a French-language GTM Server-Side course.
Is Data Marketing School a public or private company?
Data Marketing School is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Data Marketing School founded?
Data Marketing School was founded in 2023. It employs 1 to 10 people.
Where is Data Marketing School based?
Data Marketing School is headquartered in Paris, France, in the Europe region.
How does Data Marketing School make money?
Two revenue lines are on record. Freelance Consulting Services are the primary driver. The others are online Training Courses.
Who are Data Marketing School's main competitors?
Others on record are Didomi, Stape, OneTrust and Addingwell. Direct peers are Simo Ahava (10x Helsinki), MeasureSchool, Loves Data and Analytics Mania (Julius Fedorovicius). Broad incumbents are Bounteous and Cardinal Path (Merkle).
Does Data Marketing School have an API?
No public API is recorded for Data Marketing School.
What industry is Data Marketing School in?
Data Marketing School's product category is Marketing analytics and tag management consulting. Its primary akta.pro industry code is BPAFAFAL, Consent, Preference & Privacy Management (CMP), with a secondary code of BPAEANAD, Digital Learning Content Development (eLearning, Labs, Simulations). Its NAICS code is 541511 and its SIC code is 7370.