A Shopify CRO agency researches why shoppers leave your store, runs A/B tests on product, collection, cart and landing pages, and ships the changes that make more money.
Our top pick is Conversionwise, co-founded by Oliver Kenyon, which has 100 Shopify test results in our archive.
If you want a large tested library to judge before you hire, Blend Commerce, Clean Commit and Syntra Labs have each published more than 150 tests here.
How we picked: every agency below has real test results in the LiftArchive database.
We checked each one's own website for location, services and pricing in November 2026. We have not hired these agencies or audited their client work.
| Agency | Based in | Best for | Known for | Tests in our archive |
|---|---|---|---|---|
| Conversionwise (Oliver Kenyon) | Bristol, UK (also London) | Ecommerce brands that want testing, redesigns and Shopify development from one team | Navigation, cart and landing page tests reported in revenue | 100 |
| Maison Commerce (Kasper Dolk) | Amsterdam, Netherlands | Shopify brands doing €100k+ a month | Custom themes plus ongoing A/B testing | 30 |
| Scaling CRO (Peter Christensen) | Not stated on its site | Established DTC brands with paid traffic | Linking ads, landing pages and on-site tests | 7 |
| Tailored Commerce (Ruben) | Amsterdam, Netherlands | Smaller Shopify brands that want month-to-month terms | Short contracts, fast first tests | 5 |
| Syntra Labs (Dave Diederen) | Not stated on its site | Shopify Plus brands that want a flat monthly subscription | Small product page tests measured in revenue per visitor | 162 |
| Blend Commerce | London, UK (registered office) | Brands that want an audit first, then monthly testing | Product page and subscription tests | 150 |
| Clean Commit | Fully remote | Brands that want to see losing tests, not just wins | A public library of wins, losses and flat tests | 173 |
| Convertibles | New York, USA and Sofia, Bulgaria | Shopify Plus brands doing $2M+ a year | Cart drawer and offer tests in monthly revenue | 46 |
| DRIP Agency | Germany | European brands doing €100k+ a month | SNOCKS, KoRo and Kickz test programs | 41 |
| SplitBase | Montreal, Canada | Brands doing $10M+ a year with 3,000+ orders a month | Dr. Squatch and paid traffic landing pages | 15 |
| Prismfly | Dallas and New York, USA | Brands that need Shopify Plus builds and CRO together | Redesigns and theme migrations | 10 |
| Enavi | Not stated on its site | Shopify brands that want customer research behind each test | Navigation and homepage tests for Xtrema | 2 |
Test counts are the results each agency has published that we hold.
Most agencies publish their wins and keep their losses private, so a small count doesn't mean a small agency.
Browse every firm on our CRO agencies hub.
The 12 best Shopify CRO agencies
1. Conversionwise (Oliver Kenyon)
Based in: Headquarters at Engine Shed in Bristol, with a London address at 103 Farringdon Road, per the Conversionwise contact page.
The same page lists design and development in Novi Sad, Serbia, and strategy in Cape Town, South Africa.
What they do: Oliver Kenyon co-founded Conversionwise and has 13 years in ecommerce CRO.
The Conversionwise site lists ongoing CRO testing, landing page and funnel builds, full redesigns, Shopify development (including Liquid work), post-click audits and strategy workshops, and claims 4,000+ brands served since 2013. Its contact page shows Shopify, Intelligems and Convert among its official partners.
Known for: The Litehouse case study, where removing one popup added $36,721 in monthly revenue.
Tests in our archive: Oliver Kenyon has 100 results on the Oliver Kenyon practitioner page.
Rebuilding a landing page natively in Shopify instead of a page builder gave +20.9% revenue per visitor.
A mega menu with category descriptions and a testimonial instead of product images was worth +$151,192/month, and a dispatch, returns and payment block under the cart drawer checkout button gave +23.8% revenue per visitor.
All 100 are wins, so ask to see the losing tests on a call.
Best for: Shopify brands that want strategy, design, development and testing handled by one team.
Not the cheapest route if you only need a one-off audit.
2. Maison Commerce (Kasper Dolk)
Based in: Amsterdam, the Netherlands, per the Maison Commerce site.
What they do: A Shopify CRO agency that builds custom themes, product pages and landing pages and runs ongoing A/B tests.
The site calls it a Shopify Platinum Partner, says it works with brands doing €100k+ a month, and caps intake at four brands a month. It shows no prices.
Known for: Its site shows anonymized results, such as +$317,652 a year from one A/B test for a womenswear brand.
It doesn't name the clients behind those numbers.
Tests in our archive: Kasper Dolk has 30 tests on the Kasper Dolk practitioner page.
A benefit-led buy box on the product page brought a revenue lift of +$141,673, and an optimized site-wide navigation brought +€127,112.
Best for: Shopify brands past €100k a month that want design and testing together.
Not for stores below that line, and the intake cap can mean a wait.
3. Scaling CRO (Peter Christensen)
Based in: Not stated on the Scaling.co site.
What they do: Scaling.co sells a system that ties customer research, ad messaging, landing pages, on-site testing and post-purchase offers into one program for established Shopify and DTC brands.
Its site says engagements start at $10K a month and are scoped after an assessment.
Known for: Ruff Greens, a pet health subscription brand, with a +54% desktop conversion lift, per its site.
Tests in our archive: Peter Christensen has 7 tests on the Peter Christensen practitioner page.
Removing the Track Order link from the main navigation gave +30% revenue per visitor, and warranty and security trust buttons below add to cart gave +27.26%.
Best for: Brands spending heavily on paid social that want ads and landing pages tested together.
Not for stores that can't commit $10K a month.
4. Tailored Commerce (Ruben)
Based in: Amsterdam, the Netherlands, per the Tailored Commerce site.
What they do: A small CRO and Shopify design agency for DTC brands.
Contracts run month to month with 30 days' notice, and the site asks for Shopify or Shopify Plus brands willing to invest four figures.
It offers a positive-ROI guarantee: it keeps working until you get one.
Known for: Belluna, where the site says nine A/B tests raised the conversion rate by 24%.
Tests in our archive: Ruben has 5 tests on the Ruben practitioner page, including a loss.
A one-click 10% extra discount banner above add to cart gave +28% revenue per visitor.
A countdown timer tested across several brands showed about +10% conversion on one low-priced brand but is recorded as lost overall.
Best for: Smaller Shopify brands that don't want a long contract.
Not the right fit if you need a large team or enterprise reporting.
5. Syntra Labs (Dave Diederen)
Based in: Not stated on the Syntra Labs site.
What they do: A subscription service for CRO, design and Shopify development.
The site lists a Standard plan at $7,495 a month and a Premium plan at $10,495 a month, and says it works with 150+ Shopify Plus brands.
Known for: The site shows +$658,452 a year in extra profit for one unnamed client.
It doesn't name a client for that result.
Tests in our archive: Dave Diederen has 162 tests on the Dave Diederen practitioner page, nearly all small, single-change product page tests.
A benefit-led product headline gave +12.36% revenue per visitor, and a more compact bundle buy box gave +10.77%.
It also publishes losses, such as profile icons next to the star rating at -3.84% revenue per visitor.
Best for: Shopify Plus brands that want a fixed monthly price and a steady flow of small tests.
Not for stores that only need a few changes.
6. Blend Commerce
Based in: Registered office in London, according to UK company records.
Its site lists clients in the US, Canada, the UK, Europe, the Middle East and Australia.
What they do: The Blend Commerce site calls it a multi-award-winning Shopify CRO agency.
Work starts with a one-off CRO audit and roadmap, then moves to monthly testing, implementation or redesigns. Prices aren't listed.
Known for: Six Brothers Beef, listed on its site with 177% conversion growth, and a 12-month CRO program for Stone Creek Coffee.
Tests in our archive: Blend Commerce has 150 tests on the Blend Commerce practitioner page, 25 of them run on Intelligems.
A simplified mobile menu gave +11.11% revenue per visitor, and opening subscription details by default lifted auto-ship selection by 104%.
A mobile sticky add-to-cart bar for PerTronix came out flat.
Best for: Brands that want a research audit before they commit to monthly testing, especially subscription brands.
7. Clean Commit
Based in: Fully remote, with no office, per the Clean Commit about page.
What they do: The Clean Commit site says it works only on Shopify and Shopify Plus.
It designs, builds and runs A/B tests for $5,950 a month after a free trial month, and you can pause or cancel anytime.
Known for: Q30, listed on its site with a +30% increase in conversion rate.
Tests in our archive: Clean Commit has 173 tests on the Clean Commit practitioner page: 16 won, 35 lost and 122 flat.
That honesty is the point. Filters on collection pages cost -6.4% conversion and -33.2% revenue per visitor, while best-selling collections on the 404 page won +6.8% conversion rate.
Best for: Brands that want a clear monthly price and a realistic view of how often tests win. Not for brands on other platforms.
8. Convertibles
Based in: New York, USA and Sofia, Bulgaria, per its company info page. Founded in 2023.
What they do: A CRO agency for Shopify Plus brands doing $2M+ a year.
Its monthly retainers bundle CRO tests, landing pages, speed fixes, development and Google and YouTube ads.
The site claims 1,200+ tests run but doesn't list prices.
Known for: Its own site says it has "generated millions" but doesn't name a client result on the homepage.
Its strongest public proof is the test record below.
Tests in our archive: Convertibles has 46 tests on the Convertibles practitioner page, 9 run on Intelligems.
An order total and lock icon on the checkout button was worth +$389,565/month.
It also shares losses: a matching straps cross-sell in the cart drawer cut revenue by -10% to -12%.
Best for: Shopify Plus brands that want CRO and paid ads under one team. Not for stores below $2M a year.
9. DRIP Agency
Based in: Germany, trading as Drip Trading GmbH, per the DRIP Agency site.
What they do: DRIP runs experiments for shops doing €100k+ a month and offers a dedicated Shopify CRO service.
Its site says it has run 4,000+ documented experiments and uses a large test database to predict which ideas will win before launch. Prices aren't listed.
Known for: SNOCKS, where its site reports €8.2M+ in additional revenue.
Tests in our archive: DRIP Agency has 41 tests on the DRIP Agency practitioner page.
For Kickz, replacing the cart page with a one-CTA cart drawer with upsells gave +14.2% revenue per user.
For KoRo, removing optional checkout fields gave +0.9% revenue per user, a small but real result.
Best for: European Shopify brands with high traffic. Not for small stores.
10. SplitBase
Based in: Montreal, Canada, founded in 2015, per its company info page.
What they do: SplitBase is a Shopify Plus Partner.
Its Shopify CRO page says it works with brands doing $10M+ a year, needs at least 3,000 orders a month, and starts programs at $8,500 a month.
Its homepage puts typical programs at $8,500 to $15,000 a month.
Known for: Dr. Squatch, which its site credits with $800,000+ a month in revenue from conversion optimization.
Tests in our archive: SplitBase has 15 tests on the SplitBase practitioner page.
For Dr. Squatch, a quantity selector defaulting to 2 soaps gave up to +54% revenue per user.
For Roots Of Fight, an always-visible mobile search bar gave +19.4% conversion rate.
Best for: Large brands with paid traffic and the order volume to test fast. Not for stores below $10M a year.
11. Prismfly
Based in: Dallas and New York, USA, per the Prismfly site.
What they do: Prismfly combines CRO, custom Shopify development, design and lifecycle marketing, including Shopify Plus migrations.
It lists no prices, and its contact form starts budget ranges at $75-100k a year.
Known for: Primal Kitchen, a DTC redesign its site reports at +33% revenue.
Tests in our archive: Prismfly has 10 tests on the Prismfly practitioner page.
Showing percent saved next to the sale price for Revival Rugs lifted add to cart by 11.5%.
Several of its results are redesigns measured before and after, like the Primal Kitchen redesign (+33% revenue, +6% conversion), which is weaker proof than an A/B test.
Best for: Brands that need a rebuild or Plus migration plus ongoing optimization. Not for small budgets.
12. Enavi
Based in: Not stated on the Enavi site.
What they do: Enavi works only on Shopify and Shopify Plus stores, with CRO programs and one-off conversion audits.
Its site leads with customer research over quick fixes like sticky add-to-cart buttons. Prices aren't listed.
Known for: Carnivore Snax, where its site reports an 11.7% lift in average revenue per user in the first 90 days.
Tests in our archive: Enavi has 2 tests on the Enavi practitioner page, both for Xtrema and run on Convert.
Putting top categories in the menu instead of a "Shop" link raised product views by 16.7%.
Product views aren't sales, so ask how results tie to revenue.
Best for: Shopify brands that want an audit first and research behind every test. Thin public record, so check references.
Which one is right for you
Shopify stores under $2M a year
Try Tailored Commerce for month-to-month terms, or Clean Commit for a flat $5,950 a month with a free trial month.
If a single test would take months at your traffic, start with a CRO audit instead. Check first with the sample size calculator.
Growing brands, $2M to $10M
Conversionwise and Maison Commerce both pair testing with design and Shopify builds.
Convertibles fits if you also want paid ads run by the same team.
Shopify Plus brands, $10M and up
SplitBase and Syntra Labs work mainly with Shopify Plus brands and publish their prices.
DRIP Agency fits large European shops, and Prismfly fits if you need a migration or rebuild too.
Subscription brands
Blend Commerce has the most subscription tests among these agencies, such as a "Popular" badge on the 4-week delivery option (+14.81% conversion rate).
Scaling CRO lists Ruff Greens, a pet health subscription brand, among its results.
What to look for in a Shopify CRO agency
- Losing tests. An agency that runs real tests has plenty of flat and losing results; ask to see them.
- Revenue per visitor. RPV or profit per visitor tells you more than conversion rate, because a discount can lift orders and cut revenue.
- Clean A/B tests. A split test of one change is stronger proof than a redesign compared before and after.
- A traffic check. A good agency tells you up front if your order volume is too low for monthly testing.
- Shopify skills in-house. Ask who writes the Liquid code and whether tests run in your theme or through an app like those in our Shopify A/B testing apps list.
- Clear terms. Get the notice period, minimum term and who owns the code in writing.
- Testing tool costs. Ask whether the testing app is in the fee or billed on top.
Our guide on how to choose a CRO agency has the full list of questions and red flags.
What Shopify CRO agencies cost
Most agencies on this list don't publish prices.
The ones that do, as of November 2026:
- Clean Commit: $5,950 a month after a free trial month, cancel anytime.
- Syntra Labs: $7,495 or $10,495 a month.
- SplitBase: $8,500 to $15,000 a month.
- Scaling CRO: from $10K a month.
Prismfly's contact form starts budgets at $75-100k a year.
Tailored Commerce asks for a four-figure budget. A retainer has to pay for itself from the winners, so work out what one winning test is worth at your revenue before you sign.
Our CRO pricing guide covers pricing models and what should be included.
Real results from these agencies
Six tests from six of the agencies above, including a loss:
@oliverkenyon
Convertibles
SplitBase
DRIP Agency
Blend Commerce
Clean CommitSee how your store compares on our Shopify conversion rate benchmarks, or browse more ideas on the Shopify CRO page.
Watch out for
- Win-only portfolios. Most agencies publish only wins. Clean Commit's full record shows 16 wins in 173 tests, which is closer to what a normal program looks like.
- Redesigns sold as tests. Before-and-after numbers mix in seasonality and ad changes. Ask which results came from split tests.
- App stacking. Every testing, upsell or popup app adds scripts that can slow your store. Ask the agency to remove the apps that lose.
- Discount-driven wins. Extra discounts and urgency timers can lift conversion and cut margin. Ruben's countdown timer worked on one brand and lost across the others.
- Long lock-ins. Several agencies here run month to month. If one asks for a 12-month contract, ask why.
For agencies that work beyond Shopify, see our ecommerce CRO agencies list.