Shopify CRO Agency in Belfast, Northern Ireland

PM Digital Design is a full-funnel Shopify CRO and profit-optimisation agency based in Belfast, working with subscription and high-LTV DTC brands across the UK, Ireland, Europe and North America. We don't fix conversion rates in isolation. We fix the funnel the conversion rate is a symptom of.

Headquartered in Belfast. Serving DTC brands at £5M–£200M ARR globally.

What we do for Shopify brands

The brands that win on Shopify don't have one good ad or one good landing page. They have a funnel where every step compounds: ad message-match, landing-page architecture, product-page CRO, cart and checkout optimisation, post-purchase upsell, subscription opt-in, retention and LTV. PMD operates across the entire stack.

Our work falls into four lanes:

• Conversion rate optimisation (CRO) — structured experimentation programmes built around hypothesis-led tests, not opinion-led ones. We use the test-duration framework we publish openly to ensure tests read clean.
• Profit optimisation — the work that sits between your ad spend and your profit. Offer architecture, cart thresholds, subscription opt-in, AOV ladders. See our full-funnel CRO and profit optimisation work.
• Shopify development — custom themes, headless builds, Shopify Plus migrations. The full Shopify website and theme development service lives here.
• Cold-traffic landing pages — advertorials, listicles, VSL pages, presell pages. Designed for paid-acquisition profitability. High-converting Shopify landing pages.

Why Belfast brands work with PMD

If you're a Northern Ireland or Ireland-based DTC brand scaling on Shopify, the local agency market is thin. Most CRO talent sits in London, Manchester, or remote globally — which means in-person strategy, on-island time zones, and UK + Ireland-aware tax and currency understanding can be hard to find together.

PMD is built around solving that for Belfast and NI brands:

• Belfast HQ — same time zone as your team, in-person strategy sessions when needed, and remote-first delivery for everything else.
• UK and Ireland VAT, currency and shipping context baked in. Our team has shipped Shopify builds across both jurisdictions.
• Direct access to our founder Paddy McLarnon on every engagement. Belfast brands deal with the strategic principal, not an account-management layer.
• A delivery model that matches NI agency velocity — fast briefing, tight feedback loops, no enterprise-agency lag.

But Belfast HQ doesn't mean Belfast-only. Most of our roster is global. The home base is what gives us the operational discipline we then deploy on subscription and DTC brands in the US, UK, and Europe. New to CRO fundamentals? Start in the PMD CRO learning hub — our video tutorials, podcasts and CRO breakdowns live there.

Brands we work with

The clearest proof of an agency's work is the brands trusting it with their funnel. PMD's roster skews heavily toward subscription and recurring-revenue DTC: Cadence, Routine, Maelove, MyoMaster, Revive, The Cornish Seaweed Bath Co, Factory Weights, Olivia & Pearl, Ripley Rader, Nomadic, Verne, 8 Sheep Organics, VIIA, The Woobles, Mash Gang, Redsalt, Natrava, Suzushii, and RAW. The full client showcase lives on our case studies page.

Three publicly-shareable wins for context:

• Cadence — a subscription brand we work with — moved their checkout subscription take rate to roughly 70% through full-funnel CRO work on offer architecture, message-match between ads and LPs, and pre-checkout opt-in design.
• A subscription-led DTC brand drove an additional £25,535 in monthly revenue from one cart-threshold split test.
• Rory's Travel Club grew 650% after their Shopify migration and custom theme build with PMD.

How a PMD engagement runs

The first six weeks of any engagement we spend diagnosing — data, support tickets, customer voice, paid-media drop-off points, on-site behaviour, the founder's gut. Then we move. Speed matters; but speed without diagnosis just means shipping faster mistakes.

Engagement structures we offer:

• CRO programme — ongoing experimentation, monthly velocity targets, quarterly reviews. The default for brands committed to compound profit growth.
• Funnel diagnostic + roadmap — a fixed-scope two-to-four-week audit producing a prioritised CRO roadmap.
• Shopify build or migration — custom theme work or Shopify Plus migrations with CRO baked in from day one. Sits inside our Shopify website and theme development service.
• Landing-page sprint — advertorial, listicle, or VSL pages built for specific paid-traffic campaigns. Sprint-scoped delivery.

If you're not sure which fits, book a 30-minute call with Paddy and we'll work it out on the call. No deck pitch.

FAQs

Are you a Belfast-based agency or do you work globally?

Both. PMD is headquartered in Belfast, Northern Ireland, and most of our team works UK hours. The client roster spans the UK, Ireland, Europe and North America. We're optimised for brands that want a UK-time-zone partner with global delivery experience.

Do you only work with Shopify brands?

We specialise in Shopify and Shopify Plus. We're a Shopify Certified Partner. Our deepest expertise sits in subscription and high-LTV DTC categories on the platform. Brands on other platforms occasionally engage us for advertorial or landing-page work, but our full-funnel CRO programme is Shopify-first.

What revenue range do you typically work with?

£5M–£200M ARR is our sweet spot. Smaller brands often don't yet have the traffic volume to read CRO tests cleanly; larger brands usually have in-house teams. The middle band is where full-funnel CRO compounds fastest.

What's the typical engagement length?

Our CRO programme is structured as a 6-month minimum commitment because compounding CRO results take roughly that long to read. Funnel diagnostics and landing-page sprints are fixed-scope and shorter. Shopify builds typically run 8–16 weeks.

Can we meet in person if we're in Belfast or Dublin?

Yes. Belfast brands can meet in-person at our HQ. Dublin and rest-of-Ireland brands can be served from Belfast easily — we travel for kickoffs and strategic reviews where it matters. Most ongoing work runs remote-first regardless of geography.

Where can I learn more about your CRO approach before booking?

Start with the PMD CRO learning hub — our video tutorials, podcasts and longer-form CRO breakdowns are all there. The blog (CRO & Profits) goes deeper on specific tactics. Or jump straight to PM Digital Design's homepage for the full service overview.

How do I start?

The fastest path is to grab a 30-minute slot with Paddy. We'll talk through your funnel, your current diagnostic data, and what — if anything — PMD can do for you. If we're not a fit we'll tell you on the call.