Online stores have SEO problems that brochure sites never face. A catalog with thousands of products creates duplicate variants, filter URLs that multiply by the hour, thin category pages and a migration risk every time the platform changes. That is why many brands look past generalist firms and hire one of the ecommerce SEO agencies that work on category, product and technical issues every day. The best of them also now track how products show up in AI answers from ChatGPT, Gemini and Google AI Overviews, not just in the classic blue links.
This list covers agencies that are platform agnostic and work across Shopify, BigCommerce, Magento (Adobe Commerce), WooCommerce and headless builds. If your store runs only on Shopify, our list of top Shopify SEO agencies goes deeper on that platform. If the site itself needs rebuilding before SEO can work, start with the top ecommerce website development companies.
Every agency below shows ecommerce SEO work on its own website, through service pages, named retail clients or published case results. Where a figure is the agency’s own claim, we say so.
eCommerce SEO Agencies At A Glance
Company
Headquarters
Best For
Core Services
Inflow
Denver, USA
Mid-market US retailers that want revenue-focused SEO
Technical SEO, category and product content, migrations, digital PR
Re:signal
United Kingdom (remote)
Fashion, footwear and retail brands selling across markets
Ecommerce SEO, retail search, GEO, digital PR
StudioHawk
Melbourne, Australia
Large-catalog retailers in Australia
Technical ecommerce SEO, category and product SEO, migrations, digital PR
1Digital Agency
Miami, USA
BigCommerce and Shopify Plus stores
Ecommerce SEO, GEO/AEO, feed alignment, development, migrations
Victorious
San Francisco, USA
DTC brands that want SEO plus AI answer visibility
Ecommerce SEO, AEO, technical SEO, link building
The SEO Works
Sheffield, UK
UK retailers expanding into Europe
Ecommerce SEO, international SEO, GEO, CRO
Exposure Ninja
London and Nottingham, UK
Growing online stores that want SEO and Shopify development
SEO, AI search optimisation, Shopify development, CRO
Coalition Technologies
Los Angeles, USA
Stores that want SEO and design under one roof
Ecommerce SEO, AI SEO, web development, PPC
Delante
Krakow, Poland
Stores targeting several European languages
Ecommerce SEO, international SEO, AI visibility, link building
Infidigit
Mumbai, India
Marketplaces and large retailers in India and abroad
Ecommerce SEO, technical SEO, schema, content
Best eCommerce SEO Agencies In 2026
The agencies are ordered by depth of ecommerce specialization and the strength of the proof they publish, not by headcount.
1. Inflow — Platform-Agnostic eCommerce SEO Agency Founded In Denver In 2007
Inflow was founded in Denver in 2007 and positions itself as an ecommerce marketing agency first. SEO is one of its main practices, alongside paid search, paid social, CRO, GA4 consulting and email. The ecommerce SEO service page lists technical audits, crawl budget work, structured data, internal linking, content briefs, product and category page optimization, link building through digital PR, and site migration planning.
The agency says its experts are platform agnostic and lists BigCommerce, Magento, Shopify, Volusion, WooCommerce and proprietary builds. It also offers algorithm update analysis for stores that lost traffic after a Google core update, which is a common reason retailers start looking for outside help.
On proof, Inflow publishes a Simms Fishing case study with a 126% increase in organic traffic, plus a technical SEO case with a 118% increase in organic revenue. Named clients on its site include KEH Camera, Mountain House, Legacybox, America’s Test Kitchen, Gaia and Home Science Tools. It is also unusually open about cost: the agency says effective SEO generally runs between $3,000 and $5,000 a month, with larger catalogs costing more.
Inflow suits established US online retailers that want an ecommerce SEO company focused on organic revenue rather than ranking reports, and that may want paid media and CRO from the same team later.
2. Re:signal — Remote UK eCommerce SEO And GEO Agency Behind ASICS And FatFace Growth
Re:signal describes itself as an ecommerce SEO and GEO agency and as a remote organic growth agency for ecommerce brands. Its founder and CEO, Kevin Gibbons, formed BlueGlass in 2012, and the London business later rebranded as Re:signal. The team is fully remote, with the agency listing 30 team members who each have five or more years of experience.
Services are split into traditional search (strategy, technical SEO, content and digital PR), retail search covering Google Shopping and Amazon listings, AI search (GEO) and social search. That retail search line matters for stores whose revenue increasingly comes from product listing surfaces rather than standard organic results.
Its client list is heavy on fashion and footwear: Under Armour, ASICS, FatFace, Vivobarefoot, Ocado, N Brown and EssilorLuxottica appear on the site. According to the agency, its work helped ASICS grow organic revenue 20X, FatFace grow organic revenue 96%, and Vivobarefoot generate £2.76m in sales. Re:signal also says it has won 89 Search Awards across UK, European and global events.
Re:signal is the strongest fit for apparel, footwear and lifestyle retailers with international catalogs that want ecommerce SEO services, digital PR and AI visibility from one specialist team.
3. StudioHawk — Australian SEO Agency With A Dedicated Faceted Navigation And Migration Practice
StudioHawk is a specialist SEO agency with offices in Melbourne and Sydney, and separate UK and US sites. The founder started the business in 2015. It runs a dedicated ecommerce SEO service with six parts: technical ecommerce SEO (crawl budget, duplicate product variants, page speed and faceted navigation for large catalogs), category and collection page SEO, product page SEO with Product schema, ecommerce content, link building and digital PR, and safe site migrations.
Its platform list covers Shopify, WooCommerce, Magento, BigCommerce, Neto and headless builds. The agency says it works without long-term lock-in contracts and tailors each strategy rather than selling fixed packages.
The published retail results are extensive. StudioHawk reports a 60% increase in organic traffic and a 32% organic revenue increase for Officeworks, a 101% year-over-year organic revenue increase for Clarks, a 225% revenue increase from collection pages for Shoes & Sox, and 535% revenue growth for Koala Living. Other named clients include Petstock, Weber, Bondi Sands, Kathmandu, Culture Kings and City Beach.
StudioHawk is best for Australian and regional retailers with large catalogs, where filter pages, variants and replatforming are the main SEO risks.
4. 1Digital Agency — Elite BigCommerce Partner Doing eCommerce SEO Since 2012
1Digital Agency started in Philadelphia, is now headquartered in Miami, and describes itself as an ecommerce SEO agency since 2012. Unlike many SEO firms, it also builds and migrates stores, so SEO and development sit in the same team. The agency lists itself as an Elite BigCommerce Partner, a Shopify Plus Partner and a Google Partner.
Its ecommerce SEO service spans technical audits, product listing and product detail page optimization, faceted navigation governance, schema, GEO and AEO, Google Shopping feed alignment, digital PR, platform migrations and reporting. The page sets explicit Core Web Vitals targets and covers Shopify Plus, BigCommerce, Magento (Adobe Commerce), WooCommerce, Volusion and headless stacks such as Hydrogen, Next.js Commerce and Catalyst.
Named clients on the site include Steinway & Sons, Walker’s Shortbread, Suzanne Kalan and MFA Boston. The agency publishes sector results rather than named SEO figures, including a 471.2% rise in online revenue over 24 months for an alcohol and tobacco retailer. Pricing is partly public: engagements start at $185 an hour.
1Digital is a good match for BigCommerce and Shopify Plus merchants who want an ecommerce SEO agency that can also ship template, feed and migration fixes without handing them to a separate developer.
5. Victorious — San Francisco SEO And AEO Agency With Published DTC Revenue Cases
Victorious is an SEO and answer engine optimization agency founded in 2013 and based in San Francisco, led by founder and CEO Michael Transon. Its ecommerce offering combines SEO and AEO with the stated goal of getting product and category pages into both Google results and AI answers.
The service includes keyword research, technical SEO, on-page optimization, link building, content creation, site migrations and website maintenance, with a reporting dashboard for clients. Supported platforms include Shopify and Shopify Plus, BigCommerce, Magento, WooCommerce and Drupal.
The ecommerce page publishes named DTC results. According to the agency, Gema & Co saw a 291% organic revenue increase, UNIONBAY grew organic revenue 200% year over year and ranked first for “cargo shorts men,” and Pawrade recorded a 916% organic revenue increase. In a separate AEO test for UNIONBAY, Victorious says five optimized URLs earned 84 new AI Overview citations in six weeks.
Victorious suits direct-to-consumer brands that want a search-focused partner and want AI search visibility measured alongside organic revenue.
6. The SEO Works — Employee-Owned Sheffield Agency With International eCommerce SEO Cases
The SEO Works was established in 2009, is employee owned and has more than 80 specialists across Sheffield, London and Leeds. Its ecommerce SEO service covers category and product page optimization, keyword research, technical SEO, content, conversion rate optimization and GEO for AI visibility, with monthly and quarterly reporting.
The agency works as a full-service partner or as a consultant alongside an in-house team, which suits retailers that already have a marketer but lack technical depth. It lists Magento, Shopify, WooCommerce, BigCommerce, enterprise CMS platforms and custom builds.
Published retail results include a 300% increase in organic users for online golf store Golfway, 34,000 additional organic visits for Simply Feet, and, for BarberDTS, a 49% traffic increase in Germany and 32% in France as it expanded abroad. The agency also reports 78% growth from AI referrals for an unnamed premium coffee brand. Decathlon and Zippo appear among its client logos, and it lists wins at the UK Search Awards in 2024 and 2025.
The SEO Works is a strong pick for UK retailers moving into European markets that want a stable, mid-sized team rather than a large network agency.
7. Exposure Ninja — UK Agency Pairing SEO And AI Search With Shopify Development
Exposure Ninja grew from a 2012 side project into a remote agency with offices in London and Nottingham, and a New York office listed as coming soon. Its SEO practice covers enterprise SEO, technical SEO and analytics, alongside AI search optimization (GEO) aimed at ChatGPT, Gemini, Perplexity and AI Overviews. It also builds Shopify stores and runs CRO, which helps when SEO recommendations need development time.
The agency keeps a dedicated ecommerce section of case studies. According to its site, a data-led strategy drove a 395% ROI for The Ordinary, an ecommerce brand exceeded its organic revenue goal by 132%, a lawn care ecommerce brand earned $459k in organic revenue, and a UK e-cigarette store grew monthly sales from £230k to £680k through SEO and content marketing.
Other client logos include Riverford, CFA Institute and Siemens, and the agency also handles paid media, email and branding. That breadth makes it more of a growth partner than a pure SEO shop.
Exposure Ninja fits small and mid-sized online stores, especially on Shopify, that want SEO, AI visibility and site improvements from the same team.
8. Coalition Technologies — Los Angeles Shopify Premier Partner With 250+ In-House Specialists
Coalition Technologies was founded in Los Angeles in 2009 and says it is still led by its founders, with more than 250 full-time specialists. Ecommerce SEO is one of its main service lines, with industry pages for fashion, beauty and jewelry. Its FAQ describes the work as product, category, technical and content optimization.
The agency lists itself as a Shopify Premier Partner and a Google Premier Partner, and it builds on WordPress, Shopify, BigCommerce, Magento and custom platforms. Its project for Spiceology used a headless BigCommerce and WordPress setup, an example of the kind of build where SEO and development need to be planned together.
Named clients on its site include Spiceology, Native Union, Urban Armor Gear, Lea Black Beauty, Sugatsune and Pink Lily. The agency also offers AI SEO (GEO), PPC including ChatGPT ads, email and CRO, and says it has built and optimized more than 800 websites.
Coalition is best for brands that want an ecommerce SEO company and a design and development team under one contract, particularly during a redesign or replatform.
9. Delante — Krakow eCommerce SEO Agency Working Across 35 Markets
Delante is headquartered in Krakow, Poland, and has worked in SEO since 2014. The agency says more than 80% of its clients come from ecommerce, and it reports work across 35 markets with a team of 65+ specialists. Services include ecommerce, international, technical and local SEO, link building, SEM and analytics.
Its ecommerce SEO engagement starts with an audit of the store, then moves to conversion-focused keyword research, technical fixes, SEO copywriting by native speakers and link building. Each client gets a direct SEO specialist rather than an account manager. Delante also runs AI+SEO services, including AI audits and AI visibility monitoring across ChatGPT, Gemini and Perplexity.
Client logos on its site include Douglas, Madison Reed, Fellowes, Irena Eris, Phrozen 3D and Best Western. It publishes a case study on fixing an ecommerce duplicate pages problem that, according to the agency, grew visibility by 40%.
Delante suits stores selling in several European languages that want native-language content and a single point of contact at a European cost base.
Infidigit was founded in 2017 and is based in Mumbai, with a US address in New York. It runs dedicated ecommerce SEO services and published ecommerce SEO plans, covering technical SEO, schema and content.
Its headline case is Myntra, one of India’s largest fashion marketplaces. According to the agency, the Kids category reached 270% revenue growth, with a 274% increase in number-one rankings and organic sessions doubling, driven by technical SEO, schema optimization and content-led growth. Marketplace-scale catalogs are a distinct SEO problem, and few agencies can show work at that size.
Other ecommerce-related logos on its site include Flipkart Seller Hub, Babyshop, Fila, Decorport and Teapigs. Its published work leans toward fashion and consumer retail at marketplace scale.
Infidigit is a fit for marketplaces and large-catalog retailers, in India or abroad, that need heavy technical and schema work at volume.
How To Choose An eCommerce SEO Agency
Do They Show Organic Revenue, Not Just Traffic?
Traffic is easy to grow with blog content that never sells anything. Ask for case studies that report organic revenue, transactions or revenue from category pages, and ask how they attribute it in GA4. An agency that only talks about impressions and keyword counts is reporting activity, not results.
How Will They Handle Faceted Navigation And Duplicate Variants?
Filters for size, color, price and brand can create millions of crawlable URLs. Ask the agency to explain, for your specific platform, which filter combinations should be indexable landing pages and which should be blocked, canonicalized or left out of internal links. A good answer is specific and references your log files or crawl data. A vague answer about “best practices” is a warning sign.
Have They Worked On Your Platform Recently?
Shopify, BigCommerce, Magento and WooCommerce each limit what you can change in URLs, templates and robots rules. Ask for two or three recent clients on your platform and whether the agency can implement changes itself or will hand tickets to your developers. If you plan to replatform within a year, make migration experience a hard requirement, because a badly mapped migration can erase years of rankings.
What Is Their Plan For AI Search And Product Feeds?
Shoppers increasingly ask ChatGPT, Gemini and Google AI Mode for product recommendations, and those answers lean on structured data, merchant feeds, reviews and third-party mentions. Ask how the agency measures AI citations and whether it touches your Merchant Center feed and Product schema. Treat bold promises about AI rankings with care, but expect a clear tracking method.
Who Will Actually Work On Your Account?
Senior strategists often lead the pitch and then disappear. Ask who your day-to-day contact will be, how many accounts they manage and how many hours a month your retainer buys. Some agencies, such as Delante, give clients a direct specialist rather than an account manager, which shortens the path from finding a problem to fixing it.
Is The Budget Realistic For Your Catalog Size?
Ecommerce SEO costs scale with the number of URLs, markets and languages. Inflow, for example, publishes a typical range of $3,000 to $5,000 a month and says larger catalogs cost more. Compare proposals on scope (pages optimized, technical tickets, content pieces, links) rather than headline price, and avoid long lock-in contracts until the agency has delivered a first round of fixes.
Conclusion
The strongest ecommerce SEO agencies on this list share a few traits: they work at the category and product template level, they handle faceted navigation and migrations as core skills, and they report organic revenue rather than vanity metrics. Inflow, Re:signal and StudioHawk lead on depth of retail specialization and published results, while 1Digital and Coalition Technologies stand out when development and SEO need to happen together.
Shortlist two or three agencies that have recent work on your platform and in your market, and ask each one how it would fix your biggest crawl or category problem in the first 90 days. Organic search also works best alongside paid product listings, so if Shopping ads are part of your plan, compare these firms with the top Google Shopping PPC agencies as well.
