Independent Paris search and data consultancy with multi-location local SEO and health-sector case studies
About RESONEO
RESONEO is an independent Paris consultancy specialising in search, paid media and data, based at 60 rue de Wattignies in the 12th arrondissement. It traces its research work on search back to 2004. The firm was owned by four founding partners, Richard Strul, Olivier de Segonzac, Sebastien Broussois and Stephane Philippo, until November 2023, when five long-serving directors joined the partnership: Sarah Thomas and Julien Bouillet on the commercial side, Mathilde Elziere and Sebastien Bulte as co-heads of SEO, and Willy Monniez over paid acquisition. The team has more than 90 consultants.
They position themselves as a specialist consultancy rather than a full-service agency. Their SEO work covers technical audits (crawling, server log analysis, Core Web Vitals, migrations and JavaScript rendering), semantic audits and topic prioritisation with editorial briefs written with E-E-A-T in mind, and link building through digital PR and linkbaiting. Findings are turned into a ranked roadmap. In-house tools include Data Valorisation, an enhanced Search Console layer to which they added generative AI in 2024, and a Labs platform of AI search tools. A GEO service measures how often and how favourably a brand is cited by large language models.
Their local SEO offer is built for networks of sites rather than single practices. It audits Google Business Profiles for duplicates, missing store codes, categories, attributes, review handling and posts, reviews store-locator architecture and LocalBusiness structured data, and supports bulk listing imports, change monitoring, team training and dashboards. They also run a training course on optimising local visibility through Google Business Profile. This makes them a closer fit for dental groups, DSOs and franchise networks than for an independent practice.
Health-sector proof is indirect but documented. For the Fondation pour l'Audition, a hearing-health charity, they delivered a 73 percent rise in organic traffic in 2022 against 2021, 40 percent more keywords on page one, and top positions on more than 100 hearing-related searches after about four years of work. Pierre Fabre picked them in January 2024 for multi-brand SEO worldwide, and the Ducray dermatology brand is among their clients. Other clients include Leboncoin, Salomon, Generali, Europ Assistance, Deezer and Okaidi. They won best SEO campaign (for retailer But) and best SEA campaign (for Allopneus) at the 2018 SEMY Awards, won two further SEMY prizes in 2024, and were nominated at the 2024 SEO Camp'us awards. No dental clients are named.
On working terms, they offer both consulting missions and embedded staff, and most consultants have more than three years of experience and carry a light account load. Client KPIs are used as the measure of success, with an emphasis on transferring skills to in-house teams. Partner status covers Google Premier Partner, Microsoft Advertising Elite and Meta. Prices are not published.
RESONEO's Website
RESONEO at a Glance
| Founded | 2004 |
|---|---|
| Team size | 90+ consultants |
| Headquarters | Paris, Ile-de-France, France |
| Leadership | Richard Strul (founding partner); Olivier de Segonzac (founding partner); Sebastien Broussois (founding partner); Stephane Philippo (founding partner); Sarah Thomas (partner, commercial); Julien Bouillet (partner, commercial); Mathilde Elziere (partner, co-head of SEO); Sebastien Bulte (partner, co-head of SEO); Willy Monniez (partner, head of traffic acquisition) |
| Languages | French; English |
| Pricing | Quoted per project · Not published |
| Contracts & reporting | Engagements run as consulting missions or embedded staff (regie); client KPIs used as success metrics; emphasis on skills transfer; consultants manage a limited number of accounts. |
| Tools & partnerships | Google Premier Partner; Google Marketing Platform Sales Partner; Microsoft Advertising Elite Partner; Meta partner; Data Valorisation (in-house Search Console tool); Labs (in-house AI search tools); Matriceo (in-house paid media platform) |
Dental Marketing Services
- Technical SEO audits
- semantic and content strategy
- link building and digital PR
- local SEO audits of Google Business Profiles across multiple locations
- store-locator and location-page optimisation with LocalBusiness schema
- GEO visibility audits in AI assistants
- Google Ads and Microsoft Ads
- analytics and data dashboards
- Google Business Profile training
Practice Types They Work With
- DSOs/multi-location
Dental Clients & Results
- Fondation pour l'Audition: +73% organic traffic (2022 vs 2021), +40% keywords on Google page one, top position on 100+ hearing queries (after about four years)
- But: best SEO campaign at SEMY Awards 2018 (2017 work)
- Allopneus: best SEA campaign at SEMY Awards 2018
Why Dentists Choose RESONEO
- Named testimonial from Ducray, a Pierre Fabre dermatology laboratory
- Published SEO case study for the Fondation pour l'Audition
- Local SEO audits Google Business Profiles and store locator pages
- In-house R&D team working on search since 2004
- Office in Paris's 12th district on Rue de Wattignies
Key Strengths
- Analyses and optimises practice campaigns with its in-house Matriceo platform
- Manages practice Microsoft Advertising and Meta campaigns alongside Google Ads
- Audits a practice's Google Business Profile and location pages for local SEO
- Trains practice staff in SEO so they can support their own visibility
Awards & Recognition
- SEMY Awards 2018: best SEO campaign (But)
- SEMY Awards 2018: best SEA campaign (Allopneus)
- SEMY Awards 2024: two prizes
- SEO Camp'us SEO Awards 2024: nominee
How the DSA Score Breaks Down
Points earned: 21.6 of 100 (profile 27 × 0.8 + client feedback 0). DSA Score: 84/100
Where RESONEO Is Listed
Questions Dentists Ask About RESONEO
Has RESONEO worked with dental practices?
No dental clients are named. Their health-related work includes an SEO case study for the Fondation pour l'Audition and multi-brand SEO for Pierre Fabre, owner of the Ducray brand.
Is RESONEO suited to a single dental practice?
Their local SEO offer is designed for networks, with audits of many Google Business Profiles, store locators and bulk imports. That suits dental groups and DSOs more than a single-site practice.
What results have they published in healthcare?
For the Fondation pour l'Audition they delivered a 73 percent increase in organic traffic in 2022 versus 2021 and 40 percent more keywords on page one. They also reached top rankings on over 100 hearing-related queries after about four years.
Do they cover AI search visibility?
Yes. Their GEO service audits how a brand appears and is described in large language model answers and works on co-occurrence and co-citation with key topics.
Who leads the agency?
Four founding partners, Richard Strul, Olivier de Segonzac, Sebastien Broussois and Stephane Philippo, were joined by five new partners in November 2023, including SEO co-heads Mathilde Elziere and Sebastien Bulte.
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