We create data solutions for peoples in charge of making better decisions

We are a Matomo service company based in France and we love data

We have been working on Matomo since 2017 to offer you the best possible services. Openmost was founded by Ronan HELLO in order to respond to the influx of requests from customers on data-related topics. We have decided to base our activity on the values ​​of privacy, ethics and benevolence. It is for this reason that we favor the use of Matomo with our customers. If you share this vision of web audience analysis, I think we are made to work together.

Illustration

Reasons to get up in the morning

Privacy

Privacy is a right and we do our best to keep it that way. All of our services and products are built around this basic principle.

Expertise

In the professional world, working with the best makes the difference, so we do everything to be part of it and stay there.

Sharing

We have always shared our knowledge and our creations with the world by creating software, courses and helping others.

Our lovely partners

Ronan chardonneau

Ronanu CHARDONNEAU

Trainer, author and consultant in audience analysis since 2010.

Matomo consultant
Frederic forster

Frederic FORSTER

Consultant in measurement and optimization of digital performance for more than ten years.

Matomo consultant
Jean marc courtiade

Jean-Marc COURTIADE

With nearly 10 years of experience at Matomo, he supports organizations transitioning to Matomo.

Matomo consultant

Ronan accompanied us on Matomo to help us better understand this analysis tool which was quite new to us. He supported us on the tag correction in particular and proposed several relevant avenues for improvement. We feel that he knows the tool very, very well, he saved us precious time. Thank you very much for the collaboration, we will not hesitate for a second to call on him again!

Olivia Troehler

Great training adapted to all levels on Matomo and a real increase in skills for each member of the team.

Guillaume Dassonville

We called on Ronan to help us set up Matomo. He helped us greatly and is in total control of his subject. We highly recommend it

Yoan Laigle CEO, Cojean

Ronan was able to adapt to my needs and issues throughout my training on Matomo. The format combining training but also practical workshops is ideal for quickly mastering the tool. Thank you for this training, I recommend!!

Ambre

We work regularly with Ronan: A true passionate and exciting expert, available and above all… very talented! For the integration of Matomo as for his other missions, he quickly understands the client’s needs and knows how to be a force for proposals in the integration of the tool.

Jérôme Brisseau Fondateur de Goodflair

We work for the best

Government and administration

Agence du Service Civique Agence du Service Civique
ANTAI ANTAI
CCI Vendée CCI Vendée
Chambres d’agriculture Chambres d’agriculture
CNAM CNAM
CNCC CNCC
Cour des comptes Cour des comptes
Immersion facilitée Immersion facilitée
Mairie de Paris Mairie de Paris
Région Bretagne Région Bretagne
Région Sud Région Sud
Semitan Semitan
Union Sociale pour l’Habitat Union Sociale pour l’Habitat

Groups

Bessé Bessé
Bloomberg Bloomberg
CETIH CETIH
Free pro Free pro
GEODIS GEODIS
Groupe Sterenn Groupe Sterenn
JC Decaux JC Decaux
La Poste i-team La Poste i-team
Orchestra Travelsoft Orchestra Travelsoft
Poclain Poclain
Raviday Raviday
SFR Caraïbes SFR Caraïbes
Terrena Terrena
UMR UMR
Valrhona Valrhona

Health and NGO

Astrazeneca Astrazeneca
CHU Nantes CHU Nantes
ELSAN ELSAN
Handicap International Handicap International
Plexus santé Plexus santé
Winpharma Winpharma

Education and research

Alfieformation Alfieformation
CNED CNED
GREF Bretagne GREF Bretagne
Grenoble EM Grenoble EM
Nantes Université Nantes Université
Sorbonne Université Sorbonne Université
Université de Grenoble Alpes Université de Grenoble Alpes
Université de Tours Université de Tours
Université du Luxembourg Université du Luxembourg
Université Lyon 2 lumière Université Lyon 2 lumière

Real estate and construction

Arcelor Mittal Construction Arcelor Mittal Construction
Bouygues Immobilier Bouygues Immobilier
ED Ouest ED Ouest
Emerige Emerige
GA Smart Building GA Smart Building
Gerancimo Gerancimo
SAMSIC Group SAMSIC Group
Société du Canal de Provence Société du Canal de Provence

Ecommerce and services

Cojean Cojean
Deltic Deltic
Doccle Doccle
Eco CO2 Eco CO2
Fabernovel EY Fabernovel EY
Fruggr Fruggr
Goodflair Goodflair
Le Slip Français Le Slip Français
PayPlug PayPlug
Vendée évasion Vendée évasion
Wero Wero

Agencies

Adveris Adveris
Agence Seize Agence Seize
Cellenza Cellenza
Emagma Emagma
Khosi Khosi
Niji Niji
Noiise Noiise
Peak Ace Peak Ace
Profideo Profideo
Respoweb Respoweb
Stratis Stratis
The Links The Links
Unnest Unnest
Unowhy Unowhy
Yes We Dev Yes We Dev

Culture and tourism

AEF Info AEF Info
Charente Tourisme Charente Tourisme
Points communs Points communs
Théatre du Chatelet Théatre du Chatelet
Photo of Ronan HELLO teaching at MeasureCamp Nantes 2018

Your company will be in good company

We have real expertise that has proven itself over time. We have been providing Matomo services since 2017. Our customers are very satisfied and let us know!

Our Matomo expertise does not date from 2021… We did not claim to be expert since Google Analytics Universal Analytics has closed. We have the Matomo seniority and expertise you are looking for in a professional partner.

We are used to working with marketing, technical, SEO and Ads teams. Your language is ours, no jargon, just precision. We adapt our language to each person, we leave no one behind

Since we took a liking to Matomo in 2017, we have been active in the Matomo community in several ways. We create free plugins and themes available on the official marketplace. We have also written reference documentation in French which has allowed us to make ourselves known to our first customers. And we are very active on the Matomo forum to help everyone find a solution to their problems.

Common questions about Matomo and Openmost

Answers to the most frequent questions our clients ask.

Matomo (formerly Piwik) is an open-source web analytics platform that provides a privacy-focused alternative to Google Analytics. It lets you track website traffic and user behavior while keeping full ownership of your data.

Available as Matomo On-Premise (self-hosted, free) or Matomo Cloud (managed SaaS), it offers real-time analytics, heatmaps, session recordings, A/B testing, and custom reports.

The main differences are data ownership (Matomo keeps data on your servers, Google sends it to theirs), GDPR compliance (Matomo can work without cookie consent via CNIL-approved cookieless mode), and data accuracy (Matomo processes 100% of traffic without sampling).

Matomo is also open source, allowing custom plugins and full code access. Google Analytics is free but monetizes your visitors’ data for advertising.

Yes. Matomo can be configured for full GDPR compliance. With cookieless tracking, IP anonymization, and limited data retention, it is one of the few analytics tools exempt from cookie consent requirements, as confirmed by the French CNIL.

Matomo On-Premise keeps data on your servers within the EU. It includes built-in consent management, data subject request handling (right to access, right to erasure), and configurable data retention.

Matomo On-Premise is 100% free and open source under the GPL v3 license. You can download, install, and use it on your own servers without paying anything to Matomo.

Matomo Cloud is a paid hosted service starting at around 23 EUR/month. Some premium plugins (heatmaps, session recordings, A/B testing) are paid add-ons for On-Premise users but included in certain Cloud plans.

A certified Matomo consultant speeds up your setup, prevents costly mistakes, and ensures your GDPR configuration is correct. Complex scenarios like ecommerce tracking, SPA tracking, or cross-domain setups require technical expertise.

Openmost is a certified Matomo partner with 10+ years of experience, 20+ published plugins, and hundreds of trained professionals.

Matomo On-Premise is free, self-hosted, with full data control and unlimited websites. You manage server maintenance and updates. Matomo Cloud is a managed SaaS on EU servers with automatic updates, priced by traffic volume.

Choose On-Premise for full data sovereignty and custom plugins. Choose Cloud for a managed solution with no infrastructure to maintain.