TL;DR
- A strong CRO strategy only creates value when your agency can execute it quickly. Evaluate CRO agencies by research, experimentation, development, QA, and the time from approved hypothesis to live test.
- This list compares ten Shopify CRO agencies by their delivery model, technical capabilities, CRO expertise, and ability to move tests from strategy to implementation.
- craftberry ranks first as a Shopify CRO agency for keeping the full optimisation process in-house, from tracking validation and research to UX, experimentation, development, and rollout.
- Its 30+ specialist team also uses Signalveritas to prioritise high-impact opportunities and measures success against commercial metrics such as revenue per visitor, not conversion rate alone.
- Before choosing a CRO agency, ask who owns development and QA, what work stays in-house, and how quickly an approved test can reach production. Execution capacity can determine how much of your CRO roadmap actually ships.
Every ecommerce conversion rate optimization agency on this list can identify funnel friction. The difference is how quickly and consistently that insight becomes a live test.
The operating model determines who owns research, design, development, QA, and approvals, and how many handoffs sit between a hypothesis and implementation.
This ranking focuses on how each agency delivers CRO, how quickly it can move from hypothesis to implementation, and how much execution remains on your side.
How we built this list
We built this ranking from public, verifiable sources: each agency’s service pages, delivery and team information, listings in the Shopify Partner Directory, and independent review profiles where available.
Our team at Onrec evaluated these agencies across five factors:
- Shopify and CRO expertise: experience combining Shopify development with conversion rate optimization.
- In-house delivery: the extent to which research, UX, design, development, and QA are handled by the agency’s own team.
- Execution capability: how directly the agency can move from CRO research and hypothesis development to implementation and testing.
- Relevant specialization: experience with Shopify stores, Shopify Plus, ecommerce, and conversion-focused work.
- Public evidence and proven results: the quality and relevance of publicly available information supporting the agency’s capabilities and delivery model.
We did not rank agencies based on paid placements, private pitches, or self-reported conversion lifts alone.
We also excluded agencies with no public information about how they deliver CRO work, because without a documented delivery model, it is difficult to evaluate execution capacity consistently.
The goal is to identify agencies with a credible combination of CRO expertise, Shopify capabilities, and the technical capacity to turn approved tests into production work.
Top 10 Shopify CRO agencies for 2027 at a glance
|
# |
Agency |
Operating model |
Client-side responsibility |
|
1 |
craftberry |
In-house CRO powered by proprietary Signalveritas, with a 4x added-revenue guarantee |
Approve priorities and hypotheses; craftberry handles the full cycle from development through measurement and rollout. |
|
2 |
PurpleFire |
Specialist CRO team assigned to the account |
Briefing specialists and aligning priorities |
|
3 |
Spiralyze |
Predictive CRO with a dedicated experimentation team |
Providing business context, approvals, and access to data |
|
4 |
wecanfly |
Shopify development with CRO integrated into project work |
Sequencing CRO tests with development priorities |
|
5 |
Aureate Labs |
Distributed delivery teams across Shopify and headless commerce |
Specifications, coordination, and review cycles |
|
6 |
TacticOne |
Boutique CRO model built around traffic requirements |
Meeting the traffic threshold required for testing |
|
7 |
Northpeak |
Client-specific team covering CRO and acquisition |
Prioritizing CRO alongside paid acquisition |
|
8 |
Mastroke |
Full-service Shopify growth model with CRO as one service line |
Prioritizing CRO within the broader growth roadmap |
|
9 |
Ecomx Agency |
Shopify development with CRO integrated into growth work |
Balancing roadmap development with CRO testing |
|
10 |
Adcetera |
CRO practice within a broader marketing agency |
Coordinating CRO with wider marketing and funnel initiatives |
The 10 Best Shopify CRO Agencies
1. craftberry
We placed craftberry first because its CRO programme is tied to commercial outcomes, targeting at least 4x the client’s investment in added revenue, with continued work at no extra cost if that target is not reached.
The agency is a Shopify Premier Partner with 30+ in-house specialists covering analytics, research, UX, experimentation, Shopify development, and implementation.
Tracking is validated before testing, so no result rests on numbers nobody trusts. Alongside that, craftberry runs its own AI tool, Signalveritas, which scans a store and surfaces the opportunities with the most obvious upside before anyone starts guessing.
Research and Signalveritas together decide what gets tested first, so the early tests in a programme come from evidence rather than from a backlog of internal opinions.
Because design, development, QA, and rollout stay with the same team, winning ideas can move into production without another vendor taking over.
That model is backed by the craftberry’s published case study results across both conversion rate and revenue per visitor, keeping the focus on how much value each visitor generates rather than conversion lift alone.
- For Enhance Automotive, repositioning existing social proof below the hero helped drive a 21.01% increase in conversion rate and a 21.63% increase in revenue per visitor.
- For Shelly, clearer framing of existing bundle options produced an 11% increase in conversion rate and an 8% increase in revenue per visitor, without changing the pricing.
- For Mi Amante, craftberry reports an 11% increase in conversion rate, a 14% increase in revenue per visitor, and a 14% increase in profit per visitor across 47,600 visitors, with a 97.4% probability of beating the control.
In 2024, craftberry reports more than $450M in client revenue across its projects. The agency also holds a 4.8/5 rating across 28 verified Clutch reviews.
Best for: established Shopify brands that want a reliable, ongoing CRO programme tied to measurable commercial outcomes, with a target of at least 4x the client’s investment in added revenue and continued work at no extra cost if that target is not reached.
It is less suitable for day-one stores, businesses with too little traffic to reach reliable test significance, or brands looking only for a one-off audit with no intention of implementing and testing the findings.
2. PurpleFire
PurpleFire uses a specialist squad model, with multiple experts assigned to each account rather than a single generalist strategist. The agency reports thousands of split tests across its client base, with its CRO offering spanning research, design, and paid acquisition.
The model gives brands access to specialized expertise across the funnel, but it also increases coordination requirements. More specialists can mean more briefing and alignment when priorities or scope change.
Where it strains: brands with a narrow CRO mandate may not need a multi-specialist team. If the priority is moving quickly from a CRO hypothesis to Shopify development and live testing within one team, an integrated delivery model can reduce coordination.
3. Spiralyze
Spiralyze combines a predictive CRO model with a full-service experimentation team. Its Shopify CRO team covers research, copy, design, development, QA, analytics, and project management, with the first test targeted for launch within two weeks.
The model suits brands that want a high-volume testing program with limited internal execution. Its prediction engine uses A/B test data to prioritize experiments, while the team handles implementation and ongoing testing.
Where it strains: brands that need CRO tightly integrated with broader Shopify strategy, custom development, and long-term platform ownership may prefer a Shopify engineering-led partner.
4. wecanfly
wecanfly is a Shopify-exclusive agency and Shopify Premier Partner focused on migrations, custom apps, and conversion-focused UX. Its CRO work is integrated into Shopify development, so conversion changes can be implemented within the same project team.
The model works well when CRO priorities are tied to a migration, rebuild, or development roadmap.
The trade-off is continuity: testing may follow the project schedule rather than run as a separate experimentation track.
Where it strains: brands that need a continuous CRO program independent of development projects should clarify how testing is staffed, prioritized, and scheduled.
5. Aureate Labs
Aureate Labs delivers through distributed delivery teams based in Surat, India, working across Shopify and headless commerce with performance and UX as part of its CRO offering.
The model can scale efficiently for brands with a strong internal product owner and clearly defined requirements. The trade-off is coordination when projects involve frequent changes or decisions across teams and time zones.
Where it strains: brands that need frequent same-day decisions or close real-time collaboration should clarify time-zone coverage, escalation paths, and review cycles before the engagement begins.
6. TacticOne
TacticOne is a boutique DTC agency that starts CRO engagements with a data audit, including tracking integrity, before moving into funnel optimization and a defined CRO blueprint.
The agency publishes a minimum threshold of roughly 40,000 monthly sessions for its CRO model, which makes the approach better suited to stores with enough traffic to generate test results within a reasonable timeframe.
The structured blueprint provides a clear testing framework, but may offer less flexibility than a fully bespoke experimentation program.
Where it strains: smaller Shopify stores below the published traffic threshold may not be a fit. Brands with more complex requirements should also clarify how the blueprint adapts to their specific testing roadmap.
7. Northpeak
Northpeak assembles a client-specific team from 20+ researchers, developers, and marketers and works across ecommerce, SaaS, and B2B rather than focusing on a single commerce platform.
This cross-vertical model can bring broader research perspectives, but it also requires clear prioritization when CRO, SEO, and paid acquisition sit within the same engagement.
Where it strains: Shopify-specific engineering is not the primary focus. Brands that need CRO tightly integrated with Shopify development, theme work, and technical implementation should confirm the available platform expertise before choosing the engagement.
8. Mastroke
Mastroke offers Shopify CRO audits covering site experience, mobile, checkout, and analytics within a broader growth agency that also provides paid media, SEO, email marketing, and Shopify development.
The integrated model can simplify coordination across acquisition and conversion work, particularly for brands that want several growth functions managed by one partner.
The trade-off is scope: when CRO sits alongside multiple services, brands should define the testing roadmap, dedicated capacity, and success metrics separately.
Where it strains: brands looking for a dedicated, continuous CRO program should confirm how much team capacity is reserved for experimentation and how CRO priorities are protected within the broader growth engagement.
9. Ecomx Agency
Ecomx Agency is a Shopify Plus development and growth partner that integrates conversion work into its technical implementation rather than treating CRO as a separate experimentation function.
This model connects CRO recommendations directly to the development work required to implement them.
The trade-off is prioritization. Feature development and CRO experiments may rely on the same developer capacity, so the engagement needs a clear process for deciding which work takes priority within each sprint.
Where it strains: brands running a heavy development roadmap should clarify how CRO testing is protected within sprint planning and how experiment velocity is maintained alongside feature work.
10. Adcetera
Adcetera runs CRO within a full-service marketing agency, combining experimentation, UX, and analytics with creative and media services.
This model works well when conversion challenges span ad messaging, landing pages, and onsite experience. The trade-off is technical specialization: brands with CRO roadmaps that depend on Shopify development, complex PDP changes, or checkout work should confirm the available platform expertise.
Where it strains: Shopify-specific technical implementation is not the primary focus.
The numbers behind the argument
Checkout is one of the highest-leverage areas for ecommerce CRO.
Baymard estimates that large ecommerce sites could increase conversion rates by 35.26% through checkout design improvements alone.
Finding checkout friction is the first step. The real work is turning those insights into changes you can implement, test, and maintain.
|
Figure |
Value |
Source |
Checked |
|
Global cart abandonment rate |
70.22% |
Baymard Institute, meta-analysis of 49 studies |
Aug 2026 |
|
Conversion gain available from checkout usability alone, large sites |
35.26% |
Aug 2026 |
|
|
US shoppers abandoning orders due to high extra costs |
48% |
Aug 2026 |
|
|
Form elements in the average US checkout flow |
23.48 |
Aug 2026 |
|
|
Conversion lift from one slide-out cart redesign test |
18% |
Aug 2026 |
Identifying checkout friction is straightforward, but the harder part is implementing and testing the right fixes without slowing the roadmap.
FAQ
How long before a CRO program pays for itself?
For a mid-sized store with sufficient traffic, initial test learnings can emerge within four to eight weeks, while program-level return usually takes longer to assess. The timeline depends on traffic, test volume, implementation capacity, and the size of the opportunity.
Implementation speed is often the operational constraint. That makes the agency’s delivery model an important factor alongside its CRO methodology.
Does the agency need full admin access to our store?
It needs enough access to do the work, and no more. A sensible setup is a scoped staff account, a development theme for build work, and the appropriate read access to analytics and reporting tools.
Winning variants should move into the live theme through your normal release process, with a rollback path. If an agency requests unrestricted owner access by default, ask why that level of access is necessary.
What if our traffic is too low for A/B testing?
If your store has low traffic or too few conversions, A/B tests can take too long to produce reliable results. Running tests without enough volume increases the risk of treating normal variation as a meaningful result.
At that stage, qualitative research, session recordings, checkout audits, and evidence-based UX improvements can provide actionable insights while you build enough volume for experimentation.
Can CRO happen without touching theme code?
Yes. Testing tools can inject client-side changes without modifying the theme, which can be useful for validating an idea. However, client-side variants can introduce flicker, performance overhead, or inconsistent behavior across devices.
For structural changes to the cart, checkout, or PDP, native theme implementation gives you more control over performance, consistency, and maintainability.
How do we verify an agency's claims before signing?
When evaluating an ecommerce conversion rate optimisation agency, check the agency’s partner status in the Shopify Partner Directory, and review independent profiles rather than relying only on testimonials published on the agency’s site.
Then ask one operational question: what was the average time from signed-off hypothesis to live variant over the last quarter? The answer gives you a practical view of delivery capacity that a headline test win rate cannot provide.
Key takeaway
Choose the operating model, not the pitch. A consumer goods CRO agency should connect research, strategy, implementation, QA, and measurement without unnecessary handoffs.
For established Shopify brands, craftberry is the strongest fit for that model because tracking validation, research, UX, experimentation, development, and implementation are handled by one in-house team.
That combination matters because CRO only creates value when good ideas can move quickly from evidence to a live test, be measured against commercial outcomes, and then be implemented when they win.