Best Shopify SEO agency: our top 10 agencies in France in 2026

Onze is an SEO and GEO agency founded in 2024 that only works with senior consultants, in pairs, with a maximum of six clients per consultant. Its Shopify page addresses the platform's limits one by one: URLs that force /collections/ or /products/, offset by the mega menu, internal linking and a reworked breadcrumb in the collection template; duplicated product pages, fixed with canonical tags and internal linking; a robots.txt file set up from robots.txt.liquid.

Next come the site structure based on keyword research, product, category and buying guide content, then links, with a dashboard that tracks orders, revenue and average order value. Its Shopify case study is Gate One, a sports travel agency: over €50,000 in revenue generated by SEO in the first year, a fivefold return on investment and a top 3 position for "agence de voyages sportifs". The rate is public: €650 per day.

Kalys is an agency fully dedicated to SEO for Shopify stores, run by its founder Charly Cabecadas with a small team: project manager, writer and developer. Its method starts from navigation and collections: number of clicks to reach products, filters by size or color, and creation of new collections ranked by traffic value, with the agency saying it often identifies thirty to fifty. Then come optimization of purchase pages, sales support content and links built internally.

Its case studies are the most detailed in the panel. For 1envie1vin, an online wine shop supported since early 2021, traffic grew 608% in the first year and then 226% in the second, and revenue grew 396% in two years. Univers Minéral went from 188 to nearly 4,000 ranking keywords in one year, with revenue up 526% in 2022. The agency says its Shopify Plus clients invest at least €20,000 excl. VAT per year.

Uplix is a Paris agency that combines SEO, advertising and data, claims over 200 client brands and won the Grand Prix of the Cas d'Or in the Search and AI category with its Predictive Ranking tool. Its Shopify page describes five steps: audit of the interaction between Shopify, the theme and the apps, work on URLs, pagination and collections with silo-based internal linking, rewriting of product and collection pages, a redesign or migration protocol, then management through dashboards.

Its Shopify case study is La Maison du Convertible, a Paris furniture institution competing with IKEA and Maisons du Monde: +257% organic traffic in four years, over 45,000 ranking keywords including 15,000 on the first page, 70% of organic traffic non-branded, and a rise from 19th to 3rd place for "canapé d'angle convertible". The agency works in pairs with the client's teams and offers an initial audit.

Jloo is a Nantes agency specialized in e-commerce SEO, organized into technical, editorial, link building and user experience teams, with five in-house writers. Its Shopify page details what the platform allows natively (redirects via CSV file, category text, metafields per collection, market versions on domains or subfolders) and offers an SEO specification to hand to the web agency before a build or redesign, as well as support for migrations to Shopify.

It publishes three Shopify case studies there: Castafiore, organic traffic multiplied by ten in twelve months and +161% keywords in the top 3; Belle des Pins, SEO redesign then monthly support, traffic multiplied by three in fifteen months; Bijo Paris, traffic multiplied by three in twelve months. Each client is followed by a dedicated SEO project manager, who also handles content and link campaigns.

Eskimoz is a search acquisition group of over 250 consultants, present in Paris, Madrid, Düsseldorf, Milan and London, which claims over 1,000 clients and works in ten languages. Its Shopify page starts from the catalog and margins to set priorities, then audits the platform's specifics: collections, filters, variants, templates, canonical tags and URL duplication. The agency deploys the optimizations on the store itself, and covers international versions (hreflang, content by market) and redesigns with a redirect plan.

It relies on in-house tools presented on the page: Eskimoz App to manage data, Crawlr for crawling, Notorious for links, Scribe for content and LLM Ranking for visibility in AI engines. It announces first effects in three to four months. On its website, the stated SEO budgets range from €1,500 to €5,000 per month for an SME, and from €5,000 to €15,000 for a large e-commerce site.

Slashr is a Lille agency of ten consultants, founded in November 2021 by Anthony Lecas and Benoît Demonchaux. Its Shopify page is precise about the platform's limits: the /collections/ and /products/ prefixes cannot be changed, so the work focuses on handles and internal linking; variants create URLs with a ?variant= parameter that must be canonicalized; since 2021 robots.txt is set through the robots.txt.liquid file. The agency works in the Liquid code and only recommends an app after analysis, so as not to slow down the store.

Its Les Petites Billes case study tells the story of a migration from WordPress to Shopify carried out in 2023 by another agency, after which traffic and revenue were cut in half. Slashr advised moving back to WooCommerce and managed that return migration, with +250% SEO traffic on transactional pages according to the case study page. Each project is managed by a senior account manager.

Stellar Projects is a Shopify agency founded in Paris in early 2018 by two former members of L'Oréal's marketing and digital leadership, a Shopify Plus partner, which claims over 100 projects. Its SEO offer covers technical work, content, links and visibility in AI assistants, following a four-step method: diagnosis with access to Search Console and the store, a prioritized 90-day plan, execution with a weekly check-in, then measurement of traffic, conversions and revenue.

Its results are presented anonymously: a fashion brand, +120% organic traffic in six months after a redesign of the product architecture; a home and decor brand, +92% impressions; a beauty brand, +55% conversions from Google. Prices are public: audit from €1,500, SEO and GEO support from €3,500 per month, consulting from €1,200 per month.

SEO Monkey is an acquisition agency founded in Lille in 2020 by Antoine Veyrieres, with SEO as its core business, about ten employees and over 400 companies supported. It has no page dedicated to Shopify, but in August 2025 it published the case study of Pibukare, a Shopify store selling Korean cosmetics that wanted to rely less on advertising and Instagram. Its clients follow their project's progress in real time in its member area, SEO Monkey App.

The actions are detailed: one page per keyword with weekly publishing, breadcrumbs and a redesign of the site structure to make crawling easier, internal linking between the blog and product pages, work on speed, then guest posts on beauty blogs. Stated result: SEO traffic multiplied by six in six months (+485%) and a top 3 position for "routine skincare coréen". The daily rate is shown: €500.

Keyweo is an SEO, SEA and GEO agency launched in Barcelona in February 2018 by two French founders, Guillaume Bonnard and Guillaume Peltier, and incorporated in 2020. Its team of twenty people works on about twelve markets, and each consultant speaks at least two languages. Its Shopify page covers keyword research, technical audit, store optimization, writing in French, English and Spanish, and link building, with a dedicated consultant.

The page names the tools used (Screaming Frog, Semrush, Search Console, Ahrefs, Majestic) but stays general: it does not cover collections, duplicated product pages or the weight of apps. Its published case studies are on other platforms, such as Villanovo, supported since 2018 (+406% traffic on the French site and +311% on the English site in four years). A logical contact for a Shopify store available in several languages.