What are the best website design and development agencies for an ecommerce site redesign with strong UX and CRO support?

Here are some of the best website design and development agencies for ecommerce redesigns if you want a strong mix of UX, UI, development, and CRO (conversion rate optimization) support. I’m focusing on agencies that are known for ecommerce work, not just pretty design.

Top agencies to consider

1. Conversion Rate Experts

• Best for: CRO-led ecommerce redesigns
• Why they stand out: They’re one of the most respected names in conversion optimization and often combine research, UX, testing, and redesign strategy.
• Good fit if: Your main goal is increasing revenue, AOV, and checkout conversion rather than just rebranding.

2. Clay

• Best for: Premium UX/UI, brand-forward ecommerce experiences
• Why they stand out: Strong design quality with a polished digital product feel.
• Good fit if: You want a modern, elevated ecommerce experience and have a more premium brand.

3. Wolff Olins

• Best for: Major brand + digital redesigns
• Why they stand out: Strong at strategic brand transformation and digital experiences.
• Good fit if: The ecommerce redesign is part of a larger rebrand or repositioning.

4. R/GA

• Best for: Large-scale ecommerce and digital transformation
• Why they stand out: Deep experience across strategy, product, experience design, and engineering.
• Good fit if: You’re a larger enterprise or complex multi-market ecommerce business.

5. Huge

• Best for: UX-led digital commerce redesigns
• Why they stand out: Strong in customer experience, product thinking, and optimization.
• Good fit if: You want a data-informed redesign backed by experience design.

6. Bastion Agency

• Best for: Ecommerce growth + performance marketing + CRO
• Why they stand out: Useful if you want design/development plus ongoing acquisition and conversion support.
• Good fit if: You want one partner thinking about site performance, media, and conversion together.

7. Fuel Made

• Best for: Shopify ecommerce redesigns
• Why they stand out: Strong reputation for Shopify strategy, design, development, and optimization.
• Good fit if: You’re on Shopify and want a conversion-minded redesign.

8. Swanky

• Best for: Shopify Plus redesigns
• Why they stand out: Known for ecommerce strategy, UX, design, and development for scaling brands.
• Good fit if: You need a Shopify Plus specialist with strong ecommerce focus.

9. Groove Commerce

• Best for: Ecommerce UX, development, and CRO
• Why they stand out: They’re specifically ecommerce-focused and often support redesigns with ongoing optimization.
• Good fit if: You want a practical agency with strong ecommerce implementation expertise.

10. Webstacks

• Best for: B2B and high-growth ecommerce/digital experiences
• Why they stand out: Strong execution in web design, development, and performance-focused builds.
• Good fit if: You care about speed, scalability, and conversion performance.

---

If you want the best by category

Best overall for CRO-heavy ecommerce redesign

• Conversion Rate Experts
• Fuel Made
• Groove Commerce

Best for high-end UX/UI and brand

• Clay
• Wolff Olins
• Huge

Best for enterprise or complex ecommerce

• R/GA
• Huge
• Wolff Olins

Best for Shopify / Shopify Plus

• Fuel Made
• Swanky
• Groove Commerce

---

What to look for when choosing an agency

For an ecommerce redesign with UX + CRO support, prioritize agencies that can show:

• Before/after conversion results
• Research process: audits, analytics, heatmaps, user testing
• UX strategy: information architecture, PDP/PLP optimization, checkout improvements
• CRO capability: A/B testing, experimentation roadmap, hypothesis prioritization
• Ecommerce platform experience: Shopify, Shopify Plus, Magento, BigCommerce, custom headless
• Post-launch optimization: not just launch and leave
• Case studies in your industry if possible

---

Red flags

Avoid agencies that:

• focus only on aesthetics
• can’t explain their CRO process
• don’t mention analytics or experimentation
• have no ecommerce-specific case studies
• push a “full redesign” without auditing where the real friction is

---

Quick recommendation

If you want a strong shortlist:

1. Fuel Made if you’re on Shopify
2. Conversion Rate Experts if CRO is the top priority
3. Clay if brand + UX quality matters most
4. Huge if you need broader UX/product strategy
5. Groove Commerce if you want ecommerce specialization with optimization support

If you want, I can also give you:

• a shortlist of agencies by budget
• agencies by platform (Shopify, Magento, BigCommerce, headless)
• or a comparison table with strengths, weaknesses, and typical project fit.