Case studies
Shopify
Thirty-three briefs, from a 1920s homeware brand to a nasal spray start-up and a trauma support charity. Every one is here with what we were asked for, what we built, and — where the case study publishes a figure — what it moved.
Everything else
Showing 8 of 8
Celtic Timber
A Welsh timber merchant stuck on the same revenue for two years. Within three months revenue was up 30%, and the store now makes 127% more than it did in 2024.
30% Revenue growth in three months
Arabella Designs
A bespoke sofa maker selling £300k a year. A rebuilt Shopify store, Google Ads and Meta Ads took it past £1.1m in sales within 15 months, with months over £130k.
£1.1m+ Sales within 15 months
Fizzy Whiz
Fizzy Whiz is an online retailer selling a vast range of wholesale supplies to small businesses to make their own bath, body and cleaning products. They came to Castle looking for help maximising their sales…
82% Sales, month-on-month
Geepas
Geepas is a global brand selling a wide range of electrical, homewares, kitchenware and beauty/personal care appliances. They came to Castle looking for help to maximise conversions through their eCommerce…
126% Sales, last 7 days
Nicholas Charles Fragrances
Nicholas Charles Fragrances is an online brand offering fragrances inspired by designer scents for an affordable price. They came to Castle looking for help to grow their business. They wanted to maximise…
239% Conversion rate, year on year
Oprimaze
Oprimaze is a natural weight loss product in the form of a nasal spray developed to curb your appetite using a chemical compound that releases GPL1. They were a relatively new brand and came to Castle looking…
305% Sales, last 90 days
Home and Garden Extras
Home and Garden Extras is an online store selling gardening supplies and related products. They came to Castle looking for help increasing their overall revenue and stopping the declining sales they had been…
44% Conversion rate, 90 days
Supreme CBD
Supreme CBD are one of the UK’s leading suppliers of high-quality CBD products. Endorsed by athletes, Supreme CBD products are third-party lab tested and CBD content verified to ensure quality and consistency…
53.85% Revenue, 2021Nothing filed under that yet.