Best eCommerce Agency (up to 35 Employees)

Built For Growth Digital

Built for Growth Digital officially launched in 2019 but draws on over two decades of eCommerce experience. After joining Ardmore and becoming part of the global agency network Worldwide Partners, BFG has evolved into a full-service eCommerce powerhouse based in Holywood, County Down. The agency integrates three core teams — Growth Consultancy, Performance Marketing, and Design — to deliver measurable, conversion-led client success. Specialising in PPC, paid social, programmatic, and affiliate marketing, BFG focuses on performance-driven strategies with expert execution and real-time optimisation.

Their consultancy team enhances online growth through CRO, analytics, email, and retention strategies, and their design team crafts conversion-focused user experiences. As a 2025 Shopify Select Partner, BFG is on track to becoming a Shopify Plus Partner. Notable successes include significant revenue and efficiency gains for Stila Cosmetics and Decorating Centre Online. Over the past year, the team has delivered six full website builds for major brands and implemented a custom project management system for operational consistency.

Their investment in tools like Motion has advanced creative strategy, particularly in paid social. With expanded services like Amazon Storefront optimisation and a global outlook supported by WPI, BFG positions itself as more than just an agency, it’s a strategic growth partner.

eComOne

eComOne is a specialist eCommerce growth and marketing agency founded in 2018 by Richard Hill, following the success of his initial SEO agency and multi-million pound eCommerce business. With deep-rooted experience in the sector, eComOne offers tailored SEO, PPC, Meta Ads, Digital PR, and email marketing strategies designed to scale seven- and eight-figure brands. The agency thrives by aligning with its Ideal Client Profile (ICP), ensuring a strong fit and optimal outcomes before engagement.

Their approach is consultative and strategic, often pivoting services to suit clients’ goals—such as shifting from Digital PR to a link gap strategy to drive high-quality traffic or adopting a TikTok strategy to deliver quick brand exposure. Known for transparent reporting and honest communication, eComOne acts as an extension of its clients’ businesses rather than a traditional service provider.

Beyond client work, eComOne actively builds the eCommerce community through its long-running podcast, live events like eComOne Live & Uncut, and collaborations with global partners including Shopify, Klaviyo, and BigCommerce. Locally, initiatives like ‘Digital Drinks’ and new agency-focused podcasts foster grassroots collaboration. As a Google Premier Partner ranked in the top 3% of UK agencies, eComOne combines expertise with community-building, standing out as a leading force in eCommerce growth.

Herd

We are Herd, a 25 strong, independently owned eCommerce agency, specialising in Performance Marketing and Shopify Plus Development for merchants across the globe.

Our approach focuses on helping our clients achieve genuine business outcomes, rather than arbitrary metrics.

Some of our partners are focused on profitability, others on revenue generation. We take a consultative approach to the services we deliver, focused on helping our partners achieve their business objectives – whatever they are.

Our approach has helped:

• Chilly’s move from a custom platform to Shopify Plus – whilst improving paid media performance in the process
• Re-launch Hairburst on Shopify, with a new customer experience that is delivering record-breaking conversion rates
• PDH Sports outgrow their warehouse through a record-breaking peak period and beyond, made possible by a Shopify Plus replatform, rock solid SEO migration, and a reimagined paid media strategy
• And so much more…

Our vision is to help eCommerce brands across the world scale without limits, and that’s exactly what our Herd have been doing over the last twelve months.

Heur Agency

Heur is redefining ecommerce growth by eliminating traditional silos and offering a seamless, results-driven approach to scaling D2C brands. Founded by industry veterans Chris Raven and Chris Nawrocki, Heur integrates strategy, management, and execution to drive transformational growth for clients such as Pangaia, AG1, and Union Hand-Roasted Coffee.

In a challenging economic landscape, Heur has consistently outperformed competitors—achieving a 90% client retention rate, £1.1m+ ARR, and delivering measurable success across performance marketing, ecommerce strategy, and CRM innovation. Their silo-free, fractional team model empowers brands to scale efficiently, providing direct access to senior expertise without the overhead of traditional agencies.

Beyond client work, Heur actively invests in the future of ecommerce through strategic partnerships, sweat equity investments, and hands-on business growth—proving itself as a forward-thinking leader in the industry.

Quickfire Digital

Quickfire Digital is a Shopify Plus agency helping ecommerce brands scale through high-performance, conversion-focused websites. Based in Norwich, the 32-person team delivers Shopify builds, re-platforms, and ongoing optimisation for ambitious DTC brands across fashion, beauty, food and lifestyle.

Recent client wins include Reebok, Stashed Products (as seen on Dragons’ Den), The English Distillery and Cramer – alongside long-term relationships with brands like MOUS, Pretty Green,  Juicy Couture, and Forthglade.

Quickfire is known for solving complex ecommerce challenges – from bespoke subscription flows and international rollouts to advanced checkout customisation. The team blends deep technical ability with sharp commercial thinking, and supports clients beyond go-live with performance monitoring and strategic growth support.

Every project is built around clear communication, collaboration, and a sprint-based delivery model that keeps clients involved and confident throughout.

Outside of delivery, Quickfire contributes to the ecommerce space through its own events, and regular involvement in community meetups.

Trusted by growing start-ups and established names alike, Quickfire is an agency that delivers more than websites – it delivers results, relationships, and infrastructure for long-term growth.

Rotate°

Rotate° is a technology studio that crafts bespoke, beautiful, and built-to-last eCommerce experiences for ambitious brands.

With over a decade of expertise in headless and composable commerce, Rotate° operates at the forefront of modern commerce—moving beyond templates and off-the-shelf solutions to build high-performance, scalable storefronts tailored to your business.