We don’t just build stores. We build the entire customer journey.

At Rainy City, we understand that a beautiful store is just the beginning. Our data-driven, full-funnel approach ensures every customer touchpoint, from the first ad click to checkout and beyond, is optimised for performance, turning visitors into loyal customers.

Full-funnel means full control of your growth

We’re not just a Shopify Premier agency. We’re your long-term growth partner who understands the complete ecommerce ecosystem. We support ambitious brands with end-to-end strategy and execution across design, development, CRO and marketing. Whether you’re battling a slow site, low ROAS, or poor conversion, we’ve seen (and solved) it all.

Can’t say enough good things about Rainy City. Their attention to detail and communication is top notch. Have seen amazing growth in just a short time since we started working with them. Highly recommend!

Nick Judge

Rainy City are a competent, supportive team with knowledgeable developers who know how to improve conversion rate and optimize your website for best performance. I would definitely recommend their services and work with them on coming up with a solution tailored to your needs.

Scott Annan

Rainy City took our digital presence to next level and created a clean, crisp, robust, modern (and fast) website despite the thousands of products we have in our collection. They took the time to listen & understand our needs and give us proper guidance on how best to implement them.

Peter Manka Jr.

Trusted by 600+ Brands

We’ve earned industry recognition for one reason: we deliver results for our clients. From revenue growth to user experience, our work stands out, and so do the brands we support.

Fushi
+ 300% increase in conversion rate + Upgraded to Shopify 2.0 functionality + Bespoke development solutions
Cernucci
+ 68% increase in overall sales + Best Black Friday ever recorded + Bespoke UX solutions
You're Looking Well
+ Massive increase in orders + 3,400% revenue growth + metric three
South Beach
+ Rise in average session duration + Stronger brand alignment + Seamless shopping experience
Sparkle in Pink
+ 15% increase in conversion + Bespoke app + Cart gamification
Lee Stafford
+ 60,000 customer profiles + Over 1000 URL redirects + Bespoke shopping enhancement solutions
Our Boat House
+ 10% growth in sales + 25% increase in AOV + Fully bespoke Shopify theme

 £100M+ revenue. that’s why brands choose us.

Forget disconnected strategies. We control every step, from driving qualified traffic with targeted marketing to optimising your checkout experience for maximum sales. Our approach ensures your ecommerce business succeeds from awareness to advocacy.

Bespoke Shopify design & development

We craft high-performing, fully custom Shopify stores that are fast, scalable, and designed around your customer journey.

Launch on Shopify


Shopify migrations

Migrate to Shopify with zero drama and downtime. We’ve moved brands from WooCommerce, Magento, and BigCommerce, all while protecting SEO, maintaining that data and improving UX in the process.

Explore migration services


Paid ads

Covering Meta, Tiktok and Google. $100M+ tracked revenue and counting. Our cross-channel ad campaigns are full-funnel, customer-first, and always ROI-driven. Every pound spent is tracked, tested, and optimised.

Learn more


Conversion rate optimisation

Through A/B testing, UX enhancements, and data-backed changes, we turn browsers into buyers and one-time shoppers into loyal customers.

Explore CRO services


Ongoing support

Your journey begins—not ends—at launch. With our growth retainers, you’ll get consistent, strategic input from a team that delivers measurable wins, and keeps you in the loop every step of the way.

Learn more


"We have worked with several Shopify partners and found Rainy City to be the best. Always quick with responses and help. In fact, they turned a basic retainer into new theme upgrades and I know there will be more work for them in the future."

Matt Schloss | Gulf Coast Avionics

"A very professional agency with a great team and a no nonsense approach. Clear communication, well structured and organized. Always going above and beyond and taking the time for their clients"

Bastian Fischer | Good Wine Shop

We finally found a dev team we can rely on, and it has been a game changer for our company! 10/10 recommend this team to anyone with Shopify theme development needs.

Braden Larsen | Sparkle in Pink

"Pete & James have run our META Ads management for the last few months, and have scaled it enormously successfully in such a short period of time. On top of the day-to-day running on the META account, they have a great feel for creatives - what works, what doesn't - along with some great tips for conversion."

Joseph Bloomfield

RCA has done an amazing job revamping our website and providing very detailed and innovative ways to make our vision a reality. They've exceeded expectations on several tasks and have been great communicators. Thank you to the whole team at RCA! I highly recommend them.

Dirt Locker