Ecommerce SEO is a specialism. Category pages, faceted navigation, product feeds, migrations and thousands of near-duplicate URLs are problems most brochure-site agencies never meet. The agencies below meet them every week.
If you're on Shopify specifically, see our separate comparison of the best Shopify SEO agencies. This list is platform-agnostic.
The 10 best ecommerce SEO agencies at a glance
| Agency | Based in | Best for | Platforms mentioned | Built for AI search (AEO/GEO) |
|---|---|---|---|---|
| 1. Nomada Digital | York | Brands that need to rank and be named in AI shopping answers | Shopify and others | Yes - core to the model |
| 2. Re:signal | Remote UK team | Mid-to-large retail brands | Platform-agnostic, plus retail search | Yes |
| 3. NOVOS | London | DTC and retail brands wanting an ecommerce-only specialist | Shopify named | Yes |
| 4. ClickSlice | London | SMEs wanting a no-lock-in, revenue-led retainer | Shopify, Magento, BigCommerce, WooCommerce | Yes |
| 5. Impression | Nottingham | Premium retailers wanting a test-and-prove approach | Shopify, Adobe Commerce, WooCommerce | Yes |
| 6. Visionary Marketing | Newcastle | Small and mid-size stores wanting published pricing | Shopify, WooCommerce, Adobe Commerce, BigCommerce | Yes |
| 7. Paramount Digital | St Helens / Liverpool | Northern SMEs wanting SEO and Shopify dev | Shopify, WordPress | Partially |
| 8. Convert Digital | Brighton | Owner-led stores wanting a small senior team | Shopify, Magento, PrestaShop, WordPress | Yes |
| 9. SALT.agency | London / Leeds | Large catalogues and replatforms | Shopify, Salesforce Commerce Cloud, Adobe Commerce | Yes |
| 10. Converted | Sheffield / London | Mid-market retailers wanting a structured process | Shopify, WooCommerce, BigCommerce, Magento | Yes |
Nomada Digital publishes this list. We've explained the reasoning below rather than pretending to be a neutral party.
How we built this list
1. A UK base, checked on the agency's own site.
2. A dedicated ecommerce SEO offer, not a general SEO page with "ecommerce" added.
3. Named ecommerce results on the agency's own site wherever possible. Two agencies below publish client names but no figures, and we've said so.
4. A public position on AI search.
5. Clarity on whether SEO is the main service or an add-on to store builds.
Who we left out: build-led agencies where SEO is secondary, overseas-headquartered agencies, freelancers and directories. Results are quoted as each agency publishes them. There are no paid placements, affiliate arrangements or reciprocal link deals on this page.
The 10 best ecommerce SEO agencies
1. Nomada Digital
Based in: York. Best for: brands that need category pages to rank and want to be named when shoppers ask AI what to buy.
Nomada is an SEO and AI search agency. For online shops we focus on category and product rankings, the technical issues that dilute them, and placements on the round-ups and guides that Google and AI shopping answers rely on. Imogen Pope London, a designer lampshade brand, grew organic traffic 76% year on year - see the case study.
Worth knowing: we build and develop stores (Shopify included) as well as ranking them, using an AI-assisted development process. We're B2B-first, so ecommerce is a smaller share of our work than for the specialists below.
2. Re:signal
Based in: a remote UK team. Best for: mid-to-large retail brands wanting SEO, digital PR and AI visibility from one team.
Re:signal calls itself an ecommerce SEO and GEO agency, covering strategy, technical SEO, content, digital PR and retail search including product feeds and Amazon. It publishes work for ASICS, FatFace (a reported 96% increase in organic revenue) and Vivobarefoot (£2.76m in organic revenue).
Worth knowing: built for larger retail brands rather than small stores.
3. NOVOS
Based in: London. Best for: DTC and retail brands wanting an ecommerce-only specialist.
NOVOS works only with ecommerce brands across technical SEO, content, link building, feed management, international SEO and replatforming, and offers GEO and AEO. It publishes results for The Body Shop UK, Osprey and Vitabiotics.
Worth knowing: Shopify is the platform it names most, so check its experience on yours.
4. ClickSlice
Based in: London. Best for: SMEs and mid-market stores wanting a no-lock-in monthly retainer.
ClickSlice's ecommerce SEO covers keyword research, technical fixes, category and product optimisation, content, internal linking and link building, plus GEO and AEO. It publishes results for Humax (69% increase in organic revenue) and Dino Decking (501% increase in organic traffic).
Worth knowing: contract-free, which suits stores that want to judge results month by month.
5. Impression
Based in: Nottingham, with London, Manchester and New York offices. Best for: premium retailers wanting data-led SEO with a test-and-prove approach.
Impression's ecommerce SEO covers crawl and indexation, product and category pages, structured data and feeds, and CRO, with title tests rolled out only when they lift revenue. Published work includes Queensmith and Abigail Ahern, though some of its ecommerce results combine organic and paid.
Worth knowing: a large integrated agency, useful if paid media is part of the brief.
6. Visionary Marketing
Based in: Newcastle upon Tyne, with London and Middlesbrough offices. Best for: small and mid-size stores that want published pricing.
Visionary Marketing treats shopping feeds, technical SEO and content as one system, covering faceted navigation, schema, migrations and international SEO. It publishes ecommerce SEO pricing of £1,300-£2,500 a month with no minimum term, and results including AB Ellie (+800% non-branded organic clicks).
Worth knowing: some published results are Google Ads rather than SEO, so ask which is which.
7. Paramount Digital
Based in: Rainford, St Helens, with a Liverpool office. Best for: northern SMEs wanting SEO plus Shopify development.
Paramount offers technical SEO, content, digital PR, CRO and Merchant Centre work on a rolling monthly basis. It publishes results for Kendal Tools & Machinery (43% increase in organic revenue) and ALLpaQ (153% increase in organic conversions).
Worth knowing: also builds Shopify stores, so you can keep SEO and dev together.
8. Convert Digital
Based in: Brighton. Best for: owner-led stores wanting a small, senior team.
Convert Digital covers technical SEO, keyword research, product optimisation, offsite SEO and recovery after relaunches, and has pages on ranking in ChatGPT and Google's AI Mode. Its published case study for Rockett St George reports a 240% increase in revenue.
Worth knowing: a small team, so capacity is limited.
9. SALT.agency
Based in: London and Leeds, with a Boston office. Best for: large catalogues and replatforming projects.
SALT works on enterprise and challenger ecommerce SEO - technical audits, product schema, Core Web Vitals, international SEO, feeds and programmatic SEO - and is one of the few to name Salesforce Commerce Cloud alongside Shopify and Adobe Commerce. It names Jewson/STARK UK as a client but doesn't publish figures on its ecommerce page.
Worth knowing: strongest on big, technically complex sites.
10. Converted
Based in: Sheffield and London. Best for: mid-market retailers wanting a structured process.
Converted covers category and product SEO, faceted navigation, structured data, stock and range changes and link acquisition, starting with a free audit and a sprint plan. It names clients including LOWA and MenKind but doesn't publish client-level figures.
Worth knowing: ask for results from stores like yours on the call.
Also worth a look: The SEO Works (Sheffield), Propellernet (Brighton), Studio36 Digital (Blackpool, with published monthly pricing) and Ayima (London) all do ecommerce SEO work.
What an ecommerce SEO agency costs in the UK
| Engagement type | Typical monthly range | Best suited to |
|---|---|---|
| Audit or migration support | £2,000-£8,000 (one-off) | Replatforming or recovering from a drop |
| Small specialist | £1,000-£3,000 | Smaller stores |
| Specialist ecommerce SEO agency | £3,000-£8,000 | Growing DTC and retail brands |
| Large integrated or enterprise agency | £8,000-£20,000+ | Large catalogues and multi-market retailers |
Published at the time of writing: Visionary Marketing £1,300-£2,500 a month; Studio36 Digital from £399-£499 + VAT a month. Most others quote on request.
The gap almost every agency on this list still has
Shoppers increasingly ask AI tools what to buy, and the brands named come mostly from third-party round-ups and review sites. Most ecommerce SEO still focuses on your own category pages - essential, but only half the job. Ask any agency how it measures the share of AI shopping answers that name you and which cited pages it will target.
How to shortlist an ecommerce SEO agency
| What to check | What a good answer looks like |
|---|---|
| Results for stores like yours | Named clients with organic revenue, not just traffic |
| Platform experience | Real work on your platform, especially for migrations |
| Category page plan | A clear plan for content, filters and internal links |
| Who touches the code | A named developer, or a clean handover to yours |
| AI shopping answers | A measured share of AI answers naming you |
| Contract | Rolling or short initial terms |
The honest caveat
We rank ourselves first on a list we publish. Weight that accordingly.
Several agencies here work with more online shops than we do, and some build stores as well as ranking them. If you need a replatform or a large retail programme, Re:signal, NOVOS or SALT may be the better first call. Where we fit is ranking existing category pages and getting your brand named in AI shopping answers.
Frequently asked questions
What does an ecommerce SEO agency do?
It grows organic revenue for online shops through keyword mapping, category and product page optimisation, technical fixes for things like filters and duplicates, link building and, increasingly, visibility in AI shopping answers.
How much does ecommerce SEO cost in the UK?
Most growing stores spend £1,000-£8,000 a month, depending on catalogue size and competition. Large retailers spend more.
What's the difference between ecommerce SEO services and an ecommerce SEO agency?
Usually nothing - "services" is how the work is sold, "agency" is who sells it. What matters is whether the agency has published results for shops like yours.
How long does ecommerce SEO take?
Technical and category improvements often show within two to three months. Competitive category terms usually take six months or more.
The takeaway
Pick an ecommerce SEO agency on published results for shops like yours, real experience on your platform and a clear plan for both category pages and AI shopping answers.
Want to see where your shop is missing out? Book a 30-minute call. We'll show you the category searches and AI answers you're absent from, even if the right agency is another one on this list.
Nomada Digital is a B2B SEO and AI search agency. The views here are practitioner-level and based on real client data.