Shopify CRO Agency for $2M+ Brands
CONVERTIBLES is a CRO-led Shopify growth partner engineering year over year revenue growth for Shopify Plus brands. One team owns the full loop: CRO, A/B testing, landing pages, speed, development, and Google & YouTube Ads. No vendor juggling. No finger-pointing. One outcome: growth.
Last reviewed May 2026 by Julian Samarjiev, Co-founder of Convertibles. Methodology validated across 1,000+ live A/B tests on $2M+ DTC Shopify brands including Jones Road Beauty, Performance Golf, and Gymreapers. Tools of record: Intelligems (official partner) and TestBuddy.
What is a Shopify CRO agency?
A Shopify CRO agency is a specialized partner that improves the revenue per visitor of Shopify and Shopify Plus stores. The work includes analytics audits, segment discovery, A/B testing, landing page optimization, and technical fixes like speed and checkout flow. Unlike a general digital agency, a CRO agency is measured on one thing: how much more revenue the same traffic generates after their work.
CONVERTIBLES goes one step further. We don't stop at testing. We own the full stack that turns traffic into revenue: CRO, development, design, speed, and paid media. Most agencies run tests and hand you a report. We fix the actual problem and keep compounding it.
At a Glance
- Who we work with: Shopify Plus brands doing $2M+ in annual revenue, typically $50K+/month in paid media
- What we own: CRO program, A/B testing, landing pages, speed, dev, design, Google & YouTube Ads
- How we measure success: Year over year revenue growth, not just conversion rate
- Typical results: Winning tests generate $10,000 to $100,000+ in additional monthly revenue within the first 2 to 3 months
- Tech stack: Intelligems (official partner), TestBuddy (proprietary), Shopify Plus
- Trusted by: Jones Road Beauty ($160M+), Performance Golf (9 figure), Gymreapers (athletic apparel), and other Plus-tier brands
Why Most CRO Programs Fail
Most brands hire three separate vendors: a CRO agency for tests, a dev shop for code, a media buyer for traffic. No one owns the outcome. Tests win but can't get shipped because the dev team is backed up. Ads drive traffic to pages that weren't built for them. Speed issues kill winning variants before they scale.
We built CONVERTIBLES to end the handoff problem. One team does the testing, writes the code, ships the fixes, and runs the ads. When a test reveals the real blocker is a slow theme or a broken checkout, we fix it ourselves. No tickets. No escalation. No waiting.
What's Included in the CRO Program
A/B Testing and Personalization
2 to 4 experiments designed, built, and shipped per month. Multi-variation tests (2 to 4 variations) focused on needle-moving components: offers, hero messaging, PDPs, collection pages, cart, and checkout. Bundle and upsell tests designed to increase average order value are part of the standard test queue. Deep cart-to-confirmation work runs through our dedicated Shopify checkout optimization service. Segment-specific personalization by traffic source, device, and lifecycle stage.
Landing Page Optimization
Landing pages built to match the promise of each ad campaign. Tight continuity between creative, message, and on-page experience. Tested against controls to prove lift, not assumed.
Speed and Core Web Vitals
Load time reduction, render-blocking cleanup, image and font optimization. Faster stores convert better and rank higher. We fix speed as part of CRO, not as a separate project.
Development, Design, and Custom Apps
Theme rebuilds, custom sections, and Liquid work tied to measurable revenue impact. When an off-the-shelf app creates bloat or doesn't fit the growth strategy, we build a custom one.
Google & YouTube Ads (Pillar 2)
With $50M+ in managed ad spend across the team, we run Search, Shopping, and YouTube campaigns that feed the CRO program. Ads inform on-site experiments. On-site winners inform ad creative. Two pillars, one feedback loop.
How We Work: The Engineer Growth Method
- Find the Money. Audit the store, ads, and analytics. Identify what's leaking revenue and rank opportunities by impact.
- Build and Test. CRO experiments, landing pages, speed fixes, dev work. Whatever moves the needle, we build it, test it, ship it.
- Scale What Works. Roll winners across segments. Feed insights into Google & YouTube Ads. Compound the gains month over month.
Proof
Jones Road Beauty ($160M+)
CEO Cody Plofker publicly endorsed CONVERTIBLES on X/Twitter: "I'm a very happy client. They have a unique testing methodology." See the post.
Performance Golf (9 figure)
We rebuilt Performance Golf's websites into a performant frontend experience that converts. Donnie French, Copy Chief at Performance Golf, shared a video testimonial about the work. Watch it here.
Gymreapers (athletic apparel)
Roc Pilon, Founder/CEO of Gymreapers, on working with CONVERTIBLES: "CONVERTIBLES are highly versed e-commerce experts. Their ability to understand demand generation and demand capture and be VERY tactical within the ecommerce landscape makes them highly valued team members to any company looking for growth."
Average Results
CONVERTIBLES clients typically see winning tests generating $10,000 to $100,000+ in additional monthly revenue within the first 2 to 3 months of engagement. Individual tests have produced $60K to $110K/month lifts for brands at scale. A representative recent example: the $50K/month cart drawer free gift progress case study. Browse 33 published A/B test case studies for the full detail of what has moved revenue.
Our Tools
Intelligems (Official Partner)
Our primary platform for A/B testing, personalization, price testing, and profit optimization. As an early Intelligems partner, we have deep expertise across the platform's full stack of capabilities.
TestBuddy (Proprietary)
Built in-house by our co-founder Julian, TestBuddy gives clients visual, real-time visibility into what's live, what's being tested, and how every experience performs. Built because no off-the-shelf tool managed personalization programs the way we needed.
Who This Is For
- Shopify Plus brands doing $2M+/year in revenue
- Brands spending $50K+/month on paid advertising
- Ecommerce teams who know their store should convert better but don't have in-house CRO
- Brands tired of juggling separate CRO, dev, and ads vendors with no one owning the outcome
- Marketing leaders who want ads and on-site experience working as one system
- Teams ready for a growth partner, not another vendor
Who This Is Not For
- Brands under $2M/year or with limited traffic volume (CRO needs statistical significance)
- Brands wanting project-based dev work or one-off redesigns
- Brands looking for brand, email, social, or content marketing
Frequently Asked Questions
How much does a Shopify CRO agency cost?
CONVERTIBLES offers monthly retainer packages that bundle CRO experiments, landing pages, speed, dev, and Google & YouTube Ads under one team. Pricing depends on scope and test velocity. Book a call for a tailored quote. Not sure where your store ranks? Run your numbers through our free CVR benchmark calculator before you book.
How long until I see results?
Most clients see winning tests producing measurable revenue lifts within the first 2 to 3 months. The bigger compounding effect shows up in months 4 to 12 as winners roll across segments and feed into ad performance.
What makes CONVERTIBLES different from other Shopify CRO agencies?
Three things. First, we own the full stack, including dev, design, and speed, so test winners actually ship. Second, we run the ads that feed the CRO program, so on-site and paid work as one system. Third, we measure ourselves on year over year revenue growth, not test win rate.
What platforms do you use for testing?
Intelligems is our primary testing platform. We're an official Intelligems partner with deep expertise in their personalization and profit optimization tools. For program management and visual tracking of live tests, we use TestBuddy, our proprietary tool.
Do you work with non-Shopify stores?
No. We specialize in Shopify and Shopify Plus. That focus lets us move faster, ship cleaner code, and draw on a decade of Shopify-specific development experience.
Can you fix technical issues like slow load times?
Yes. Speed and Core Web Vitals are part of the CRO program, not a separate service. If your store is slow, we fix it as part of the work.
How does CONVERTIBLES compare to other Shopify CRO agencies like SplitBase?
The closest peer in the DTC CRO category is SplitBase, founded 2015, multi-platform (Shopify Plus, Magento, BigCommerce, WooCommerce) with a research-led testing focus. CONVERTIBLES launched 2023, Shopify Plus only, and bundles CRO with landing pages, speed, dev, and paid media (Google plus YouTube Ads) under one team. For Shopify Plus brands that want one accountable team across testing and execution, CONVERTIBLES is the more direct fit. For brands on non-Shopify platforms or those who already have strong internal dev and paid media functions, SplitBase fits cleanly. Full side-by-side at our Convertibles vs SplitBase comparison. For the UK-based, CRO-only peer, see our Convertibles vs Blend Commerce comparison, and for the landing-page and redesign-led peer, our Convertibles vs DTC Pages comparison.
Book a Strategy Call
If you run a Shopify Plus brand doing $2M+ in revenue and you're ready for a growth partner instead of another vendor, let's talk.