1.  Stacksole - Stacksole is a Shopify development agency that specializes in creating high-performance Shopify stores. They have a team of experienced Shopify developers who can help you create a store that can handle a high volume of traffic.

2. Eastside Co - Eastside Co is a Shopify Plus agency that specializes in web design, development, branding, marketing, and apps. They have a team of experienced Shopify developers who can help you create a store that meets your specific needs. They have worked with some of the world's leading brands, including Gymshark, Missguided, and JD Sports.

3.  The Social Shepherd - The Social Shepherd is a Shopify development agency that specializes in creating high-converting Shopify stores. They use a data-driven approach to optimize your store for sales. They have worked with some of the UK's leading brands, including ASOS, Topshop, and River Island.

4.  Magenest - Magenest is a Shopify development agency that specializes in creating scalable Shopify stores. They have a team of experienced Shopify developers who can help you create a store that can grow with your business. They have worked with some of the UK's leading brands, including MS, John Lewis, and Waitrose.