From their site Leaders in eCommerce Integration, Security & Performance.
Named clients6
+2 more clients
Haines Educational, Build-A-Bear Workshop
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
Active filters
292 Conversion rate optimisation ecommerce agencies match your filters
Showing 176 to 200 of 292, 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.
From their site Alinga is your Platinum Shopify Partner for 20 Years of eCommerce excellence.
Named clients6
+2 more clients
Party Shots, Bambini Prams
From their site We provide solutions to eCommerce, web and digital businesses to enable efficiency & growth.
Contentoren
From their site A shop that doesn't guide visitors to checkout is just an expensive catalog.
Named clients6
+2 more clients
Nikola Calio, santuens
From their site E-Commerce Agentur für Shopify, Shopware und Headless – Performance, CRO und Customer Lifecycle.
From their site Votre vision, notre mission : Création et développement web et mobile sur-mesure
Wavai
From their site We design, build and grow Shopify stores for ambitious brands across the UAE and GCC.
OOPTIMO
From their site Somos la agencia Shopify que tu ecommerce necesita para escalar
Named clients5 4 corroborated
Olea Drinks(corroborated)
Sabater Hermanos(corroborated)
Rayca(corroborated)
Melisa Store(corroborated)
+1 more client
Clemencia Peris
From their site Singapore's most reviewed Shopify Plus Partner, now pioneering Agentic Commerce
Named clients5 3 corroborated
+1 more client
Cocomo
Named clients5 1 corroborated
+1 more client
Double Beauty Shop
From their site Your Shopify Store Should Be Your Best Salesperson. We make sure it is!
Named clients5
+1 more client
PeloFacil.com
From their site Shopify Expert New York – Build Stores That Compete in NYC
Reflect Digital
Kent, UK
From their site The eCommerce marketing agency transforming brands with human insights.
From their site Shopify stores built to convert. Custom themes, custom apps, and a checkout that gets out of the way.
Named clients5
+1 more client
Young Americans Center
Blink
Norwich, UK · also London, Birmingham
From their site The Shopify marketing agency for large catalogue stores
Clear
From their site We're a Shopify agency that designs and develops ecommerce sites that do more than look good—they sell.
Named clients5
+1 more client
Stephen's Industries
From their site We design, build and optimise unified Shopify commerce for online, in-store, and B2B
From their site Da oltre 15 anni l'agenzia di riferimento in Italia per lo sviluppo eCommerce
Named clients4 4 corroborated
From their site We level the playing field for companies up to something good by giving them an unfair competitive advantage.
Named clients4 2 corroborated
From their site We design, build and improve eCommerce sites that feel better, look better, and perform better.
Named clients4 2 corroborated
Kubix
From their site A Shopify Platinum agency trusted by real businesses to take their stores to the next level
Named clients4 2 corroborated
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%
Client brands named by more than one agency here
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.