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Openmost

The number one Matomo partner in the world

The Matomo agency that sets up, audits and runs your Matomo

Since 2017 our specialists have handled installation, tracking plans, audits, GDPR compliance, training and support for 180+ public bodies, groups and agencies. We have also shipped 35+ Matomo plugins, helped the Matomo team improve the core and built the Openmost tools your team can use every day.

Matomo experts trusted by public bodies and groups

  • Arcelor Mittal Construction
  • Astrazeneca
  • Bloomberg
  • ENGIE
  • État de Genève
  • Fabernovel EY
  • GEODIS
  • GIZ
  • Handicap International
  • JC Decaux
  • Raiffeisen Bank Albania
  • Royaume du Maroc
  • SJM Resorts
  • Sorbonne Université
  • Université du Luxembourg
  • Wero

Why our clients call us

Keep your Matomo data reliable and compliant

Our clients pick Matomo because it is open source, can be hosted where they choose and can be configured to measure audience without a consent banner under the conditions set by the CNIL, the French data protection authority. None of this happens by default. The CNIL exemption depends on a precise configuration, and a self-hosted instance needs report archiving, updates, backups and security hardening to stay fast and reliable.

When nobody owns these topics, tracking plans drift away from the site, goals stop matching reality, monthly reports time out and nobody can explain the consent setup to the data protection officer. We fix the configuration of your Matomo instance, so your team can run it and your DPO can audit it.

Services

End-to-end Matomo expertise for all your needs

One-off missions, training or a yearly support contract. Our Matomo specialists work alongside your marketing and communications teams, your developers or the agencies that support you, and your DPO.

Technical

Matomo audit

A complete, detailed report on your Matomo configuration, privacy compliance and performance, with an actionable plan.

Technical

GA4 migration

Move from Google Analytics to Matomo with a mapped tracking plan, and import your historical data so nothing is lost.

Marketing

GDPR compliance

Set up your Matomo instance to comply with local privacy laws, with hybrid tracking and the consent exemption approved by data protection authorities.

Technical

Tracking architecture

A tracking plan tailored to your website and your KPIs. Get the most out of your Matomo reports with reliable, accurate data.

Technical

Maintenance

A yearly contract with a defined scope, covering your Matomo instances, Tag Manager containers and plugins, plus hands-on consulting time.

Marketing

Matomo training

Hands-on Matomo and Tag Manager training in English or French, on-site or online, always adapted to your team.

Matomo training

Train your team on Matomo and Matomo Tag Manager

One-day, hands-on courses taught by a Matomo expert, on-site anywhere or online, in English or French. Every training programme can be tailored to your actual needs.

A hands-on day that moves between report analysis and setting up segments, goals and dashboards, with privacy in mind throughout. Built for marketing, communications and analytics teams.

  • 1 day, 7 hours
  • Beginner to advanced
  • Up to 15 participants
  • On-site or online

From €1,800 per day, excl. VAT

Level up on Matomo Tag Manager in one practical training day built on real-world examples. Learn the best practices and tips that make you confident with any tag manager. Built for the marketers and developers who own the tracking.

  • 1 day, 7 hours
  • Intermediate to expert
  • Up to 10 participants
  • On-site or online

From €1,800 per day, excl. VAT

More specific needs? Request custom Matomo training

2017

Matomo agency since

180+

Clients served

35+

Matomo plugins & modules

9+

Years of Matomo practice

Why Openmost

Matomo specialists who help develop the platform

We also work with the tools around it, such as Google Tag Manager, Commanders Act, BigQuery and Data Studio, and we build the Openmost suite of apps on top of Matomo, so you can stay effective whatever the situation.

Working with Matomo since 2017

180+ clients served and many talks given at events. We are an official Matomo partner.

A key player in the community

We have shipped 35+ Matomo plugins and modules, and we help the Matomo team improve the core.

A compliant, transparent legal framework

Terms of sale, a GDPR Article 28 DPA and a security policy are published, so your legal team can check them before any commitment.

Simple public procurement

Quotes accepted by signature or purchase order, invoices payable by bank transfer within 30 days, as most public bodies and large companies require.

Genuine, recognised experts

You deal directly with senior Matomo specialists on every engagement, audits and maintenance included.

Deliverables you can use

Every engagement ends with documentation and training, so your team can run the setup without us.

The Openmost suite

Matomo tools built from years of client work

Years of client work showed us the same problems again and again. We solved them once and for all with the Openmost suite. Build dashboards and share them outside Matomo, manage several Matomo instances at once and explore a Tag Manager container at a glance. Every tool connects to the Matomo you already run, self-hosted or on Matomo Cloud.

Openmost Dashboard

Give clients and managers clear, complete reports on live Matomo data, shared by public link. A Data Studio for Matomo, with no connector to set up.

Openmost Toolkit

Manage your entire Matomo configuration in one place, without getting lost in the admin screens. Apply configuration templates and run bulk actions that the Matomo interface cannot do.

Openmost Containers

Spot misconfigurations in your Matomo Tag Manager containers, apply bulk changes and find the dead tags that need fixing. A must-have for agencies.

Openmost Accounts

A secure wallet for all your Matomo accounts. Connect each instance once and use it in every Openmost tool.

Openmost MCP

Let Claude, ChatGPT, Cursor, Mistral or any other AI agent query your Matomo through a secure, hosted MCP server.

Openmost Support

No more support by email. Chat with Matomo specialists and follow each request from question to answer.

Matomo extensions

Connect Matomo and extend it with essential features

We publish and maintain connectors for WordPress, Shopify, SharePoint Online and WeChat mini programs, and plugins that extend Matomo reports and Tag Manager.

Matomo Site Kit

Connect WordPress and WooCommerce to a Matomo hosted elsewhere, with JavaScript, Tag Manager or server-side tracking.

Free WordPress plugin

Matomo for Shopify

Storefront, checkout steps and paid orders sent to your own Matomo, with Shopify consent built in.

Shopify app

SharePoint Tag Manager

Your Matomo Tag Manager container on every modern SharePoint Online page, without double counting.

SharePoint Online extension

WeChat Mini Program SDK

Page views, WeChat entry scenes, ecommerce and consent-aware hits from your mini programs to your Matomo.

WeChat SDK

Events Enhanced

A detail page for every event category, action and name, with its evolution and related dimensions. Turn Matomo into an event-based analytics tool.

Matomo plugin, free and Premium

Tag Manager Extended

35 extra tag templates, new triggers and variables, bulk actions and a code editor for Custom HTML tags in Matomo Tag Manager.

Free Matomo plugin

Data location and procurement

Matomo your legal and procurement teams can check

Matomo is listed in the SILL, the free software catalogue recommended by the French state, and the CNIL publishes a configuration guide for using it without consent. We set up that configuration for you, under clear contracts your legal and procurement teams can approve up front. Our tools are hosted in Frankfurt, Germany. They store no data from your Matomo instance and only provide management interfaces on top of it.

  • Matomo is listed in the French interministerial free software catalogue (SILL)
  • CNIL consent-exemption configuration, documented for your DPO
  • Openmost suite hosted in Frankfurt, sub-processors listed in the DPA
  • Quotes accepted by signature or purchase order, invoices payable by bank transfer
Map of Europe with the European Union countries in blue, France and Germany in warm colours and a marker on Frankfurt, where the Openmost suite is hosted

FAQ

What to know before hiring a Matomo agency

A question we have not covered here? Ask a Matomo specialist directly.

Ask your question

What does a Matomo agency do?

A Matomo agency helps you deploy, configure and use Matomo Analytics: tracking plans, Tag Manager, compliance settings, dashboards, plugins, performance and training. Openmost has specialised in Matomo since 2017.

Should we hire a Matomo agency or a freelance Matomo consultant?

A freelancer can suit a small, well-defined task. Large organisations usually also need a company contract, a GDPR data processing agreement, answers to security questionnaires and continuity over several years. Openmost, a French company, provides these alongside senior Matomo expertise.

Do you work with public bodies and large companies?

Yes. Institutional and large-company clients are a large share of our work. We accept purchase orders, invoice by bank transfer and publish our terms of sale and data processing agreement so they can be reviewed before signature.

Can you work on a Matomo instance we host ourselves, or on Matomo Cloud?

Yes, both. We work on self-hosted Matomo On-Premise and on Matomo Cloud. Some tasks, such as server tuning or archiving, only apply to self-hosted instances.

Do you only work with Matomo?

Matomo is our core business. When your stack requires it, for example during a migration or a hybrid setup, we also work with Google Tag Manager, GA4, Commanders Act, BigQuery and Data Studio. On top of that, we build many connectors that link your Matomo to other tools.

Where is the Openmost suite hosted?

The Openmost suite is hosted in Frankfurt, Germany. It reads your Matomo through its API and your analytics data stays in your own Matomo. Every sub-processor is listed in our DPA.

Services

Work with a Matomo expert

Audit, migration, integration, compliance, training or maintenance. Start with a free 30-minute video call.

Products

Try the Openmost suite

See Dashboard, Toolkit, Containers, Accounts, MCP and Support on your own Matomo data, in a guided demo with our team.