10 Best Ecommerce SEO Agencies in 2026 – Ranking

The best ecommerce SEO agency for cross-border stores that need organic and AI search measured together is Marketer Coffee. For very large catalogues it is OuterBox, and for enterprise Shopping and marketplace depth it is Tinuiti. Below you will find the full ranking, a comparison table, the criteria behind the order and answers to the questions retailers ask before signing.

List of the 10 best ecommerce SEO agencies:

1. Marketer Coffee
2. OuterBox
3. Inflow
4. Tinuiti
5. Searchbloom
6. Delante
7. NOVOS
8. Victorious
9. Sure Oak
10. Logical Position

Ecommerce SEO is decided at the template level, not the page level. You do not optimise 6,000 product pages one at a time. You fix the category template, the product template, the faceted navigation that generates a million crawlable URL combinations, the parameter handling that decides whether 40,000 SKUs get indexed at all, and the feed alignment that keeps Shopping and organic telling the same story. An agency that talks about blog posts before it asks about your facets has not understood the problem.

The second thing that changed is where product research happens. AI Overviews and shopping assistants now resolve a growing share of comparison and buying-guide queries before anyone reaches a category page, which turns citation into a distinct channel with its own measurement problem. Every agency below was assessed against that as well as against classic organic revenue.

Comparison of the top ecommerce SEO agencies

How this ranking of ecommerce SEO agencies was built

Every agency was assessed against five criteria: catalogue-level technical capability, platform depth, results reported as organic revenue, AI search and shopping visibility, and transparency about pricing and method. Agencies that could show ranking screenshots but not revenue outcomes were left out.

1. Catalogue-level technical work. Faceted navigation, crawl budget, parameter handling, indexation at scale, product and category template optimisation. This is the unglamorous work that decides whether a large catalogue performs at all.
2. Platform depth. Shopify, Shopify Plus, Adobe Commerce, BigCommerce, WooCommerce and headless builds each impose different constraints. Demonstrated depth counts, a logo on a partner page does not.
3. Revenue reporting. Organic revenue, orders and return on spend rather than keyword positions and traffic that never reaches the cart.
4. AI search and shopping visibility. Structured data, buying-guide content and citation inside AI Overviews and assistants, measured rather than mentioned.
5. Transparency. Published pricing, published case studies, or both.

One note on sources. Several widely circulated ecommerce SEO rankings are published by agencies that place themselves first, sometimes without saying so. Where a result below comes from an agency’s own case study rather than an independent audit, it is described that way.

The 10 best ecommerce SEO agencies reviewed

1. Marketer Coffee: best ecommerce SEO agency for cross-border stores

Best for: online retailers selling into several countries that want technical work, content and paid campaigns from one team, with AI search reported as its own channel.

• Headquartered in: Wrocław, Poland
• Industries: beauty, b2b, retail, manufacturing
• Pricing: From about $2000/month
• Notable clients: ALDI Poland, Planika, Galeria Zapachu, V-TAC, Mebel Partner
• Website: marketercoffee.com

Marketer Coffee runs ecommerce SEO across three ranges that rarely sit in one agency: enterprise retail, multi-market manufacturing and fast technical turnarounds. Founded by Adrian Dąbrowiecki, it works across European and American markets. What puts it first here is not size but measurement, since it is the only agency in this ranking that reports traffic from language models for a named client as a session figure rather than as a capability claim.

Enterprise retail: 132% organic growth for ALDI Poland in 12 months. Enterprise grocery is one of the harder ecommerce environments in SEO because the catalogue changes weekly, category pages compete with local store pages, and the technical stack is rarely under marketing’s control. A 132% lift in that context is a different order of difficulty from the same number on a 200-SKU DTC store.

Cross-border: Planika across more than a dozen markets. Planika manufactures bioethanol fireplaces and sells internationally, so the programme covered full hreflang implementation, market-level URL architecture and content localisation rather than translation. That is the specific competence most ecommerce agencies lack: authority does not transfer neatly across borders, and a German category page supported entirely by English links competes at a disadvantage no amount of content quality will close.

Speed where the problem is technical: 84% growth in 28 days for Galeria Zapachu. That result came from technical and on-page fixes rather than a content programme, which is the honest answer for a lot of stores. Where indexation and templates are broken, the first month should move the number.

AI search: roughly 5,000 monthly sessions from language models for Landingi. The client is SaaS rather than retail, but the capability transfers directly to product discovery, where buying-guide and comparison queries are increasingly resolved inside assistants before anyone reaches a category page. Producing that figure requires dedicated source attribution and content engineered for citation, which almost no ecommerce agency has built.

Pros:

• LLM traffic measured as a discrete channel with a named client figure, unique among the agencies here.
• Genuine multi-market execution with hreflang at scale rather than translated duplicates.
• SEO, paid campaigns and analytics under one roof, reported through Looker Studio and GA4.
• Central European cost base means senior attention well below equivalent US retainers.

Cons:

• Smaller than the American ecommerce specialists here, so a 100,000 SKU catalogue with in-house development dependencies may be better served by OuterBox or Tinuiti.
• Not exclusively ecommerce. If you want an agency that has never worked outside online retail, OuterBox, Inflow and NOVOS are the purer choices.

2. OuterBox: best ecommerce SEO company for very large catalogues

Best for: established retailers with tens of thousands of SKUs and heavily customised storefronts.

• Headquartered in: Akron, Ohio
• Industries: retail, consumer goods, B2B ecommerce, manufacturing, wholesale
• Pricing: from roughly $2,250 per month, larger projects well beyond that
• Notable clients: Klipsch, OXO, Dickies, K&H Pet Products, Badgley Mischka

OuterBox has specialised exclusively in ecommerce since 2004, which makes it the most experienced online-retail-only agency on this list. It runs an in-house team of more than 250 US-based specialists and holds Google Premier Partner status. The depth shows in exactly the places large catalogues fail: product page optimisation, category structures, faceted navigation and platform-specific work on Shopify and Adobe Commerce. Because the agency started in web design and development, SEO, build and Shopping sit under one roof, so nobody can blame the developers for an unshipped recommendation. One published case study describes managing a retailer’s migration, restoring traffic within two months and delivering 65% organic growth over the following year.

Pros: two decades of ecommerce-only experience; development capability in house; strong on migrations, which is where most large stores lose a year.

Cons: AI search capability is less developed than at the GEO-first agencies here; US-centric, with less multi-market depth.

3. Inflow: best for mid-market stores wanting senior attention

Best for: retailers that want experienced strategists without a large agency structure between them and the work.

• Headquartered in: Denver, Colorado
• Industries: DTC, retail, category-driven brands
• Pricing: Custom
• Notable clients: published across the agency’s case study library

Inflow treats ecommerce as its core specialty rather than one vertical among many, and frames its SEO work around sustainable organic revenue rather than rankings. It works platform-agnostically across BigCommerce, Adobe Commerce, Shopify, Volusion and WooCommerce, and covers technical SEO, content strategy, migrations and link building. The agency is known for senior-level involvement and high-touch account management, which is the practical difference for a mid-market brand: you speak to the person doing the thinking. Its published work includes a 72% increase in return on ad spend for a beauty brand alongside organic programmes.

Pros: long ecommerce specialisation; strong on migrations and technical fundamentals; senior operators on the account.

Cons: not the right choice if you need a large full-service agency with in-house development for a complex rebuild.

4. Tinuiti: best for enterprise retail, Shopping and marketplaces

Best for: large retailers where organic has to be planned alongside Amazon, Shopping feeds and retail media.

• Headquartered in: New York, with offices across the United States and in London
• Industries: enterprise retail and fast-growing consumer brands
• Pricing: not public
• Notable clients: Carter’s, eos, illy Caffè, Wrangler, Rite Aid, Tory Burch, Hasbro, Crocs

Tinuiti is a large performance marketing agency covering ecommerce marketing, Amazon strategy, search, social, analytics and AI search in one organisation. For enterprise retailers the appeal is that product discovery no longer happens in one place: the same shopper moves between Google, Amazon, a retail media network and an AI assistant, and Tinuiti is built to plan across all of them rather than optimising organic in isolation. Feed depth and marketplace capability are genuinely hard to buy elsewhere at this scale.

Pros: unmatched breadth across search, marketplaces and retail media; enterprise measurement infrastructure; strong brand roster.

Cons: organic SEO is one line in a wide service mix rather than the specialism; large-agency structure puts layers between you and practitioners; not built for smaller budgets.

5. Searchbloom: best for SEO and conversion run together

Best for: SMB and mid-market retailers targeting niche buyers, where traffic already exists but the cart does not fill.

• Headquartered in: Utah
• Industries: online retail and service businesses
• Pricing: not public
• Notable clients: Nature’s Seed, Self Reliance Outfitters, Diamonds Forever

Searchbloom runs a framework it calls Authority, Relevancy, Technology, auditing sites and then working the technical, content and link layers together with conversion rate optimisation. Pairing CRO with SEO matters more in ecommerce than in any other vertical, because store traffic that never reaches checkout is pure wasted spend. The agency’s own published case studies report a 155% increase in organic revenue for a canvas art retailer and 741% revenue growth with a 300% conversion rate uplift for a specialty seed store. Both figures are self-published rather than independently audited.

Pros: conversion work integrated rather than sold separately; revenue-framed reporting; documented AI search framework.

Cons: selective about client fit and not a low-cost option; the agency publishes its own ranking of ecommerce SEO agencies with itself at number one, which is worth knowing when reading its material.

6. Delante: best for multi-market European ecommerce

Best for: stores selling across many European countries that need SEO, paid search and AI visibility handled together.

• Headquartered in: Kraków, with offices in London and New York
• Industries: e-commerce, fintech, health and wellness, B2B
• Pricing: Custom
• Notable clients: Mercedes-Benz, Notino, Douglas, Radisson Blu, BestSecret

Delante runs search programmes across roughly 30 markets with a team of more than 65 specialists, combining SEO, SEM and AI search optimisation. Founded in 2014, it has been named a Forbes Diamonds finalist in 2025 and 2026, appeared in the Financial Times ranking of Europe’s fastest growing companies and in Deloitte’s Technology Fast 50 Europe, and holds Google Premier Partner status. Campaigns are built per market rather than as one template applied everywhere, and technical fixes are implemented in house rather than handed to the client’s developers.

Pros: real breadth across European markets with local link acquisition in each; strong retail logos; award validation.

Cons: broad vertical mix means less catalogue-specific pattern knowledge than the ecommerce-only firms; pricing not published.

7. NOVOS: best for UK and EU ecommerce expansion

Best for: DTC and retail brands expanding between the United Kingdom and continental Europe.

• Headquartered in: London
• Industries: ecommerce exclusively
• Pricing: Custom
• Notable clients: DTC and retail brands across the UK and EU

NOVOS works only with ecommerce brands and is regularly cited for international work across UK and European markets. The narrow focus is the point: an agency that has never optimised anything other than an online store defaults to catalogue thinking, which is the correct default. For brands whose next market is across the Channel rather than across the Atlantic, the regional knowledge of local SERP behaviour, marketplace competition and link ecosystems is worth more than raw agency size.

Pros: ecommerce-only focus; genuine UK and EU market knowledge; strong fit for DTC brands.

Cons: smaller scale than the enterprise agencies here; less relevant if your growth markets are outside Europe.

8. Victorious: best for retailers prioritising AI answer coverage

Best for: mid-market and enterprise retailers that want systematic presence across every major AI assistant alongside classic organic.

• Headquartered in: San Francisco
• Industries: ecommerce, B2B, SaaS, travel, healthcare, finance
• Pricing: not public
• Notable clients: UserTesting, FastSpring, Everlance

Victorious is one of the few agencies with confirmed active coverage across the full set of AI answer surfaces, spanning ChatGPT, Perplexity, Google AI Overviews, Gemini, Copilot and Claude. Founded in 2012, it holds five SEO Agency of the Year awards, a longer run of independent validation than most firms can show, and its product page work applies a large set of optimisation factors to high-value geographic and category pages.

Pros: the broadest AEO surface coverage available; long award record; systematic approach to product and category page optimisation.

Cons: serves many unrelated sectors, so ecommerce pattern depth is thinner than at the retail-only firms; pricing not published.

9. Sure Oak: best for competitive niches capped by authority

Best for: stores whose on-site work is already sound but whose rankings are held down by weaker link profiles than the competition.

• Headquartered in: New York
• Industries: ecommerce and B2B across competitive niches
• Pricing: Custom
• Notable clients: ecommerce brands in competitive product categories

Sure Oak combines technical SEO and content with genuine link building and digital PR strength, which is the constraint in most mature product categories. Ecommerce clients repeatedly credit the agency with closing authority gaps that had capped rankings regardless of on-site quality. That diagnosis is worth taking seriously: when every competitor has clean templates and decent content, the differentiator moves off-site, and few agencies do off-site work well.

Pros: strongest off-site capability on this list; pairs link building with on-page and technical fundamentals; communicative account culture.

Cons: not an ecommerce-only specialist; less suited to stores whose primary problem is catalogue architecture rather than authority.

10. Logical Position: best for smaller stores needing breadth

Best for: SMB retailers that need SEO, paid search and Shopping handled competently without an enterprise retainer.

• Headquartered in: Portland, Oregon
• Industries: SMB and mid-market retail
• Pricing: entry-level retainers
• Notable clients: a large SMB retail account base

Logical Position operates at a scale that lets it serve smaller retailers profitably, which most specialist agencies cannot do. For a store doing a few million in revenue with no in-house marketing team, the realistic alternative is not a boutique specialist but no agency at all, and a competent generalist covering organic, paid and Shopping together beats fragmented freelancers. Expect process and breadth rather than deep catalogue engineering.

Pros: accessible pricing; broad channel coverage in one place; well suited to stores without internal marketing capacity.

Cons: volume model means less senior attention per account; not the choice for complex technical catalogue work.

How to choose an ecommerce SEO agency

Judge an ecommerce SEO company on five things: how it handles faceted navigation, its platform depth, whether it reports organic revenue, its migration record, and whether AI visibility is measured or merely listed.

1. Ask how they handle faceted navigation. This single question separates specialists from generalists faster than any other. A real answer covers which combinations get indexed, how parameters are handled, what happens to crawl budget and how it is monitored. A vague answer means your catalogue will not be indexed properly.
2. Check platform depth, not partner badges. Shopify Plus, Adobe Commerce, BigCommerce and headless builds impose different constraints. Ask for a case study on your platform, and ask what they could not fix on it.
3. Require organic revenue in the reporting. Orders and revenue, not sessions and positions. Ecommerce is the one vertical where the money is directly attributable, so there is no excuse for a traffic-only report.
4. Ask about their last migration. Replatforming is where most stores lose a year of organic performance. An agency that has run migrations will describe redirect mapping, staging validation and what went wrong last time. One that has not will say it goes smoothly.
5. Require a number for AI visibility. Ask how much traffic, attributed strictly to language model sources, the agency has produced for a client. A figure means the attribution exists. A description of methodology means it does not.

What is ecommerce SEO?

Ecommerce SEO is the practice of growing organic revenue for an online store by optimising category and product templates, technical architecture and content so that a whole catalogue ranks, rather than individual pages. It differs from general SEO in that the work happens at template and system level: faceted navigation, crawl budget, parameter handling, structured data for products, and the alignment between organic pages and Shopping feeds.

What is an ecommerce SEO agency?

An ecommerce SEO agency is a firm that grows organic sales for online retailers, covering catalogue-level technical work, category and product page optimisation, content, link acquisition and increasingly visibility inside AI shopping answers. The terms ecommerce SEO company, e-commerce SEO agency and online store SEO agency are used interchangeably. What matters is whether the agency’s case studies report revenue or only traffic.

What do ecommerce SEO services include?

Ecommerce SEO services include technical audits covering indexation and faceted navigation, category and product page optimisation, keyword research mapped to catalogue structure, content such as buying guides and comparisons, link building, conversion rate optimisation, migration support and AI search visibility work. Confirm which of these sit inside the retainer, because CRO and migrations are frequently billed separately.

How much does ecommerce SEO cost?

Ecommerce SEO costs roughly $2,000 to $10,000 per month for small and mid-market stores, with enterprise catalogues commonly running $10,000 to $60,000 per month or more depending on scope. Entry points among the agencies here start around $2,250 per month. Price scales with catalogue size, platform complexity, content volume and whether link building and conversion work are included. Agencies outside the United States and United Kingdom often deliver comparable seniority materially below those figures.

Which is the best ecommerce SEO agency?

The best ecommerce SEO agency depends on catalogue size and market footprint. For cross-border stores wanting organic and AI search measured together, Marketer Coffee. For very large catalogues and complex storefronts, OuterBox. For mid-market retailers wanting senior attention, Inflow. For enterprise retail spanning Shopping and marketplaces, Tinuiti. For European multi-market expansion, Delante.

Should I hire an ecommerce SEO agency or an ecommerce SEO consultant?

Hire an ecommerce SEO consultant when you have developers and content people in place and need diagnosis, architecture decisions and prioritisation. Hire an agency when the work itself has to be produced: templates rebuilt, content written at catalogue scale, links acquired. A consultant sells decisions, an agency sells execution. For stores under a few million in revenue, a diagnostic engagement followed by internal implementation is often the better use of budget.

How long does ecommerce SEO take to work?

Ecommerce SEO takes four to nine months to produce meaningful revenue growth, though technical fixes on a broken catalogue can move traffic within 30 to 90 days. Where indexation, templates or parameters are the constraint, the first quarter should show movement. Where the constraint is authority in a competitive category, expect a year. Anyone promising catalogue-wide results in a month is describing something else.

Do ecommerce SEO agencies handle AI and shopping assistant visibility?

Most ecommerce SEO agencies now advertise AI search visibility, but far fewer measure it. The work involves product structured data, comparison and buying-guide content written for citation, and review signals that assistants can read. The gap between listing the service and reporting attributable sessions from ChatGPT, Perplexity or AI Overviews is where the category currently separates, so ask for a client figure rather than a description.

Does ecommerce SEO work for small online stores?

Ecommerce SEO works for small stores provided the catalogue is focused and the niche is not dominated by marketplaces. A store with 200 well-differentiated SKUs in a specialist category can build durable organic revenue. A store reselling the same commodity products as Amazon and a hundred other retailers will struggle regardless of the agency, and paid search or marketplace presence is usually the better first investment.