Key takeaways
- Best fit for established brands that measure success in revenue: craftberry, for a 4x added-revenue target with work continuing at no extra cost, and one in-house team that ships the winners.
- Judge tests on revenue per visitor: a lift in conversion rate alone can hide a drop in order value.
- Before signing: ask who builds the winning variant and how tracking gets checked.
The Top 10 Best CRO Agencies ranked
Each entry uses the same five fields, so the agencies can be compared line by line.
| Agency | Good for |
| 1. craftberry | In-house team: design, development, migration, and CRO in one place, backed by a minimum ROI guarantee |
| 2. Jolly Commerce | Pricing, offer and funnel tests |
| 3. Enavi | Research-led CRO programs and audits |
| 4. ConversionWise | Offer, pricing, AOV and subscription tests |
| 5. DTC Pages | A senior-only team from idea to launch |
| 6. Fuel Made | CRO plus Klaviyo email and SMS |
| 7. Prosper Digital | An embedded Shopify Plus team |
| 8. Glaze Digital | Store builds with CRO after launch |
| 9. Shivook | Starting with a single-page test |
| 10. Electric Eye | Design-led lifestyle brands |
1. craftberry
craftberry is a Shopify Premier Partner agency offering Shopify CRO services.
Typical client: They work with ecommerce brands doing $2M+ a year. CRO retainers start at around $3,500 per month for research and 3 to 5 A/B tests, with development charged separately.
The work: craftberry is a Shopify Premier Partner and has built on Shopify since 2015. Design, development, migration and CRO are handled by one in-house team of Shopify specialists.
What sets it apart: CRO work targets at least 4x the client’s investment in added revenue; if it falls short, work continues at no extra cost.
Its proprietary AI tool Signalveritas finds the lowest-hanging fruit, and the team that recommends a test ships the winner.
In the Enhance case study, a social-proof A/B test lifted conversion rate 21.01% and revenue per visitor 21.63%.
Scored on: All five. Tracking and analytics are validated before any test runs, RPV is reported alongside conversion rate, and losing tests stop early.
Consider: Not for new, low-traffic, or smaller stores; CRO needs roughly 1.5 to 2 months of post-launch data and traffic for significance. Ask how added revenue gets measured.
2. Jolly Commerce
Pricing, offers, landing pages and funnels are the main test areas for Jolly Commerce.
Typical client: High-growth Shopify brands that already have product-market fit, such as Cambridge Satchel and FluffCo.
The work: Offer and pricing experiments run next to landing page and funnel tests. Its site lists it as a Shopify Select Partner.
What sets it apart: Strategy, design and code stay in one team with no handoffs. Every experiment is measured on revenue per visitor, which keeps discount-driven wins from looking better than they are.
Scored on: RPV reporting and in-house builds, both stated on its site. Tracking checks and early stopping are not described.
Consider: Brands still searching for product-market fit fall outside its stated client profile. Worth asking how a pricing test gets judged when RPV rises but conversion rate falls.
3. Enavi
Research comes first at Enavi, which runs Shopify CRO programs and conversion audits.
Typical client: Established Shopify brands with large, steady monthly revenue. Carnivore Snax and Grubbly Farms are among the clients on its site.
The work: Ongoing CRO programs plus one-off conversion audits, with tests planned in fixed cycles.
What sets it apart: Most of the team’s time goes into customer research. Each cycle then targets one funnel drop-off chosen from that research, so effort goes where shoppers actually leave.
Scored on: Its research focus supports tying work to revenue. The homepage does not cover tracking checks, RPV reporting, stopping rules or who builds tests.
Consider: Heavy research up front can mean a slower start to live testing. Two questions help here: when does the first test launch, and who codes the winning variant?
4. ConversionWise
Offers and pricing get as much attention as page layout at ConversionWise.
Typical client: Shopify and Shopify Plus brands. Biaxol and Jerusalem Sandals appear in its testimonials.
The work: Ongoing growth programs, landing pages, redesigns and audits.
What sets it apart: Testing goes past layout into offer, pricing, average order value (AOV) and subscription changes. Its own AI system, Optimo, is built on its past tests, and the team works alongside a client’s media buyers and retention staff.
Scored on: Revenue focus shows through its offer and AOV testing. Public pages say little about tracking checks or how losing tests end.
Consider: Offer and pricing tests touch margin, so finance should sign off on them. A useful question is how a person reviews Optimo’s suggestions before a test runs, and how test data reaches the media buyers.
5. DTC Pages
A boutique, senior-only team runs every step of the CRO cycle at DTC Pages.
Typical client: Growth-stage DTC Shopify brands. Happy Mammoth, Jambys and Luma Nutrition are shown on its site.
The work: A/B testing, landing pages, Shopify development, redesigns and CRO audits.
What sets it apart: The same senior specialists carry a test from idea through deployment, with no junior handoff between plan and launch. Its site also mentions a money-back guarantee, which puts some of the risk on the agency.
Scored on: In-house builds are clear from its full-cycle model. It does not spell out RPV reporting or tracking checks.
Consider: A boutique team may limit how many tests can run at once. Find out what the guarantee covers, which result triggers it, and who on the senior team owns the test roadmap.
6. Fuel Made
Email and SMS sit under the same roof as CRO at Fuel Made, a Shopify and Klaviyo agency.
Typical client: Ecommerce brands aiming to raise conversion rate, AOV and lifetime value, such as milk_shake and Live Bearded.
The work: Design and development, Klaviyo email and SMS, CRO audits and CRO retainers.
What sets it apart: On-site tests and retention flows can be planned by one group. A senior team handles strategy, design, development and project management. It is a Shopify Plus Partner and a Klaviyo Master Elite partner.
Scored on: Revenue goals and in-house builds both show on its service pages. Tracking checks and early stopping go unmentioned.
Consider: Brands that already run email well in-house may not need the Klaviyo side. Questions worth raising: can the CRO retainer run on its own, and who owns the email calendar?
7. Prosper Digital
Prosper Digital works inside the client’s ecommerce team on Shopify Plus builds and CRO.
Typical client: Ambitious ecommerce brands on Shopify Plus or moving to it. Mattel, Billy J and Skipper are listed clients.
The work: CRO, UX design, development, migrations and integrations.
What sets it apart: Growth planning, UX, development and CRO run as one embedded unit, closer to an internal department than an outside supplier. Its About page lists it as a Platinum Shopify Partner.
Scored on: In-house builds fit the embedded model. RPV, tracking checks and stopping rules are absent from its site.
Consider: An embedded team needs regular access to client staff and quick decisions. Get a clear answer on how CRO work is ranked against new feature requests, and who on the client side approves each test.
8. Glaze Digital
Launch support and later growth work both sit with Glaze Digital, a full-service Shopify Premier Partner.
Typical client: Shopify stores at any stage, including Shopify Plus brands. Bellamianta, BLK BOX and The Walk in Wardrobe are on its client list.
The work: Store design and builds, CRO-led optimization and support retainers. The retainers keep the same team on the store after launch.
What sets it apart: A modular design approach gives clients back control of their store. Custom CRO work then runs on top of that build.
Scored on: The build team covers shipping winners in-house. Public material is light on revenue targets, RPV and tracking checks.
Consider: CRO is one service among several here. Ask who leads testing day to day, how results reach the client, and whether CRO can be bought without a build.
9. Shivook
One rebuilt page is where Shivook starts, tested against the current page on live traffic.
Typical client: DTC brands that want to begin with one key landing page or product page. Particle for Men and DuraDry are among its clients.
The work: A page rebuild first, then the wider funnel built out step by step. No retainer is needed to start.
What sets it apart: The rebuild is measured on revenue per visitor and backed by a money-back guarantee. That gives brands a contained first trial of the agency before a longer program.
Scored on: Tying work to revenue and RPV reporting both appear. Its site does not say whether tracking gets checked before launch.
Consider: A single page says little about problems elsewhere in the funnel. Before agreeing, ask what the guarantee covers and how long the page test runs.
10. Electric Eye
Design leads the work at Electric Eye, a Shopify Premier Partner that also sells optimization retainers.
Typical client: Lifestyle DTC brands in fashion, home goods and accessories, where product imagery and brand feel shape the sale.
The work: Shopify design and development, optimization and maintenance retainers, migrations and a Shopify Diagnostic.
What sets it apart: It pairs the resources of a big agency with one-on-one service. Clients can use a data-driven optimization retainer, the Diagnostic, or both, and it is also a Matrixify partner.
Scored on: Its own design and development team covers shipping winners. Revenue targets, RPV and early stopping are not covered on its public pages.
Consider: Optimization shares a retainer with maintenance, so testing time can compete with fixes. A fair question is what the Diagnostic checks and which metric decides a winning test.
Questions for the first call
A short list of direct questions shows how an agency works beyond its website copy.
- Who builds the variant: Find out whether the people who design a test also code and ship it.
- Stopping rules: Request the rule for ending a losing test and the name of the person who makes that call.
- Traffic fit: Check how long a typical test needs at the store’s current traffic, and what happens if it never reaches significance.
- Ownership after a win: Confirm how a winning variant moves into the live theme and who maintains it afterward.
Frequently asked questions
What is the best CRO agency for Shopify Plus brands?
For established Shopify Plus brands, craftberry is a strong match, since it is a Shopify Premier Partner working with brands doing $2M+ a year.
Prosper Digital and Fuel Made also suit Plus brands, the first as an embedded team and the second by pairing CRO with Klaviyo work.
Which agency is best for Shopify A/B testing?
The right A/B testing agency checks tracking before any test launches and reports RPV next to conversion rate.
It should also set stopping rules in advance and build winning variants itself, so results reach the live store without a handoff.
What are the top ecommerce conversion rate optimization agencies for Shopify stores?
Strong Shopify conversion agencies research before they test and tie each test to revenue.
Look for named client results that report RPV, plus a clear account of who designs, builds and ships each change.
How do you choose a Shopify CRO agency?
Start by matching the agency’s typical client to the store’s revenue, traffic and platform. Then ask who builds winning variants, how tracking gets checked and which metric decides a winner.
How much traffic does a store need before CRO makes sense?
A store needs enough orders for a test to reach statistical significance within a reasonable window, and that depends on its current conversion rate. Stores below that level usually get more from research, speed fixes and analytics cleanup before formal testing.
Can CRO work on Shopify without Shopify Plus?
Yes. Product page tests, cart changes and speed work run on standard Shopify plans, while Shopify Plus mainly adds deeper checkout customization.
How long does it take to see results from Shopify CRO?
Results arrive once tests reach significance, so timing depends mostly on traffic. Tracking checks and research come first, which means the opening weeks of a program are usually setup rather than wins.
