About HiGrowth

A Sheffield ecommerce agency obsessed with revenue

We help ambitious online retailers escape slow, costly legacy platforms and grow on Shopify. Based in Kelham Island, Sheffield — working with brands across the UK.

Book a free discovery call See our work
Why we exist

Most agencies build websites. We grow ecommerce businesses.

Too many ecommerce brands are stuck on platforms that hold them back — slow, expensive and impossible to change without a developer. Meanwhile their agency talks about “bespoke digital solutions” and bills by the hour.

We started HiGrowth to do the opposite. We move retailers onto Shopify, the platform built for modern commerce, and we measure ourselves on the only thing that matters: the revenue we help you create. The website is just the start — the growth is the point.

How we think

Four principles we don’t compromise on

Commercial before creative

We treat your store like a P&L. Every recommendation is judged on revenue, margin or lifetime value — not how it looks in a portfolio.

Genuinely technical

Migrations, Core Web Vitals, server-side tracking, custom Shopify development. We do the hard technical work most agencies outsource or avoid.

Specialists, not generalists

We focus on Shopify migrations and ecommerce growth — including complex, high-compliance niches where most agencies won’t go.

Straight-talking

No jargon, no vanity metrics, no endless hourly invoices. Fixed scope, fixed price and honest advice — even when it’s not what you hoped to hear.

What we’re known for

Specialist expertise, end to end

Replatforming & migration

Moving brands off slow, clunky legacy platforms onto Shopify without losing rankings, data or revenue.

Shopify & Shopify Plus

Fast, conversion-focused stores — from theme builds to custom Shopify Plus development.

High-compliance niches

Deep experience in CBD, wellness and alternative health, where compliant acquisition and credibility are everything.

Growth marketing

SEO, Google and Meta ads and Klaviyo email that turn a great store into a compounding revenue engine.

Meet the team

The specialists behind your growth

We’re a small, senior team — you work directly with the people doing the work, not a layer of account managers.

  • Colin — Founder & Marketing Director, HiGrowth

    Colin

    Founder & Marketing Director

    Eight-plus years founding and scaling brands across CBD, vape and wellness. Colin leads strategy and keeps every project anchored to one thing: revenue.

  • Nathan — Paid Ads & Email, HiGrowth

    Nathan

    Paid Ads & Email

    A performance marketer who has managed £1m+ in ad spend across alternative and restricted industries. Nathan runs paid acquisition and Klaviyo email.

Track record

Measured on outcomes

350%+
Average ROAS delivered for ecommerce clients
0
Rankings lost on migrations — SEO preserved by design
<2.5s
Target Largest Contentful Paint on every build
15+
Years of combined ecommerce & Shopify experience
Proudly Sheffield

Based in Kelham Island, Sheffield — working across the UK

You’ll find us in Kelham Island, the heart of Sheffield’s creative and tech quarter. We deliver Shopify migrations and ecommerce growth for brands across Sheffield, South Yorkshire and the wider UK.

  • Sheffield
  • Rotherham
  • Barnsley
  • Doncaster
  • Chesterfield
  • Leeds
  • Worksop
  • South Yorkshire
0114 312 1007 colin@higrowth.co.uk
Book a free discovery call
Kelham Island Museum, Sheffield — home of HiGrowth in Sheffield's S3 district
Kelham Island, Sheffield · Photo © David Hallam-Jones, CC BY-SA 2.0
Let’s talk growth

Ready to outgrow your current platform?

Book a free, no-pressure discovery call. We’ll review your store, your numbers and your goals — and tell you exactly how we’d grow your revenue.

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Free & no-obligation · We reply within 1 working day

Prefer to talk? Call 0114 312 1007

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