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Agencies by service

Conversion rate optimisation ecommerce agencies.

Agencies whose own sites describe conversion rate optimisation work, each listed with the client brands it names, the platforms it works on, its offices and team size. Filter by client evidence, specialism, service, location and team size. Paying for a listing does not change the order.

agencies
594
name at least one client
464
have a corroborated client
92
client brands named
5,323
countries with an office
19
Agency sites last read
September 2026

126 Conversion rate optimisation ecommerce agencies match your filters

Showing 51 to 75 of 126, ordered by most named clients

How results are ordered

By the number of client brands each agency names on its own site, then by how many of those we corroborated. That number reflects how much of its portfolio an agency publishes and how much our crawler could read. It is not a quality rating.

Sponsored listings appear in a separate, labelled block and never change this order.

  1. C3 Commerce

    Bristol, UK

    • Matches: Conversion rate optimisation
    • Matches: B2B and wholesale
    • Shopify
    • Shopify Plus
    • Adobe Commerce (Magento)
    • Food and drink
    • +1

    From their site We design, build, and migrate fast, reliable ecommerce stores for brands that need more from their platform

    Named clients13

    +9 more clients

    Riverford, Oakhouse Foods, Highgrove Shop, Paxton & Whitfield, Cotswold Collections, Ellison, Amathus, Pukka, Pipestock

  2. LobsTTer

    Leeds, UK · also Paris

    • Matches: Conversion rate optimisation
    • Matches: B2B and wholesale
    • Shopify
    • Shopify Plus
    • Fashion and apparel
    • Beauty and skincare
    • +4

    From their site Nous concevons et créons des boutiques Shopify et Shopify Plus pensées pour la conversion, la fiabilité, la scalabilité et la croissance durable.

    Founded
    2015
    Offices
    2

    Named clients13

    +9 more clients

    Kookai, Comme des Garçons, Hindbag, S.T. Dupont, Shilton, Mon Petit Léon, An'ge Paris, Vitry, Moulin Rouge

  3. Ecommerce Revolt

    Birmingham, UK

    • Matches: Conversion rate optimisation
    • Matches: B2B and wholesale
    • Home and furniture
    • Jewellery and luxury

    From their site We don't sell services, we sell results.

    Offices
    2

    Named clients11 2 corroborated

    +7 more clients

    Astra Jewelers, Vancouver Yacht Life, Vendox Sweden, Popsy Clothing US, TT Society, IDE Dubai, USEO

  4. Arctic Grey

    New York, US

    • Matches: Conversion rate optimisation
    • Matches: B2B and wholesale
    • Shopify
    • Shopify Plus
    • Beauty and skincare
    • Food and drink
    • +5

    From their site Award-Winning Shopify Developers. Fixes, Upgrades, New Builds & Migrations

    Named clients11

    +7 more clients

    Everlast, Bark Box, Ronaldo Jewelry, Ken & Dana Design, The Cashmere Sale, Oshēn Salmon, Woodland Essence

  5. Blackbit

    Berlin, Germany · also Hamburg

    • Matches: Conversion rate optimisation
    • Matches: B2B and wholesale
    • BigCommerce
    • Food and drink
    • Home and furniture
    • Sports and outdoors

    From their site Agentur für Digital Commerce in Berlin, Hamburg, Göttingen, Kyiv

    Offices
    3

    Named clients11

    +7 more clients

    Digitalcluster Hamburg, ASS Einrichtungssysteme, Nik the Greek GmbH, 7days, Fitstore24, EXPRESSO Deutschland GmbH & Co. KG, EGGERS

  6. ThinkingAbout

    • Matches: Conversion rate optimisation
    • Matches: B2B and wholesale
    • Shopify
    • Shopify Plus
    • Headless commerce
    • Fashion and apparel
    • +3

    From their site Il tuo e-commerce come lo vuoi tu

    Founded
    2009

    Named clients10 7 corroborated

    +6 more clients

    Lanerossi ✓, Asciari atelier ✓, Dolomia ✓, Panchic, 152store, Aleví Milano

  7. Shugert Marketing

    Barcelona, Spain

    • Matches: Conversion rate optimisation
    • Matches: B2B and wholesale
    • Shopify
    • Shopify Plus
    • DTC startups

    From their site Build a Shopify operation that can support what comes next.

    Founded
    2015

    Named clients10 2 corroborated

    +6 more clients

    Boletaje, Butcher James, BoxChois, Classy Walking Canes, Redondo Brand, Oomame

  8. 5874 Commerce

    Birmingham, UK

    • Matches: Conversion rate optimisation
    • Matches: B2B and wholesale
    • Shopify
    • BigCommerce
    • Headless commerce
    • Food and drink
    • +4

    From their site Solving the core business challenges of modern retail: lowering the cost to serve while protecting profit margins.

    Named clients10 2 corroborated

    +6 more clients

    Monwell, ASC Direct, GTSE, Camperite, Virbac, Tackle Direct

  9. Moving Primates

    Munich, Germany

    • Matches: Conversion rate optimisation
    • Matches: B2B and wholesale
    • Shopify
    • Shopify Plus
    • Headless commerce
    • Food and drink
    • +4

    From their site Specialized Shopify agency focused on AI and headless commerce, implementing high-performance e-commerce solutions at enterprise level.

    Offices
    2

    Named clients10

    +6 more clients

    FAZUA, In a nutshell, DaCapo Travel, air up, Freeletics, Gepp's

From the ecommerceguide dataset

Conversion rate optimisation agencies in numbers

Calculated from every agency in this category, not just this page. Each figure opens the list filtered to it.

Agencies listed
594
Name at least one client
464 78%
Agency to client links recorded
5,549
Have a corroborated client
92 15%
Team size on record
114 19%
Founding year on record
115 19%

How this directory works

Where agencies come from

Agencies are found in Google search and business-listing results for ecommerce agency searches, and through agencies submitting themselves. Each agency's own site is then read to record its services, platforms, sectors, offices and the client brands it names.

What “named clients” means

A named client is a brand the agency names on its own site, usually in a case study or portfolio. It is the agency's claim. Where the client's own site or technology stack backs that claim, the client is marked corroborated (✓).

How platforms, services and sectors are assigned

From what the agency's pages describe. A sector is recorded when the agency's named clients sell in it or the agency explicitly describes that work, not from a single passing mention.

Locations

Only a head office or office found in a business listing with an address, or named on the agency's own site. An area an agency says it serves is not treated as a location.

Order and payment

The default order is by number of named clients, which reflects how much of a portfolio an agency publishes as well as its size. It is not a rating. Sponsored placements appear separately and labelled. Self-submitted listings are paid for and are ordered the same way as every other listing.

Corrections

If a listing is wrong, email hello@ecommerceguide.com with the page and the correction.