SuperSize Digital

Based on Oxford Street in Mayfair, London, this agency works with B2B, SaaS, healthcare, legal, fintech, AI and ecommerce businesses on organic search growth. Founded in 2016 by Stephen Tasker, whose background includes SEO campaigns for BBC, Microsoft, Salesforce and Kinsta, plus building the organic channel for HomeViews prior to its acquisition by Rightmove. The team is small, structured around a founder-led approach to campaign strategy rather than a large account management layer, and the agency positions itself against providers that report on rankings and impressions without connecting activity to leads or revenue. Services cover technical SEO (site speed, crawlability, indexation, audits), content and on-page SEO, link building and digital PR, local SEO through Google Business Profile optimisation, ecommerce SEO for product and category pages, PPC and Google Ads management, and AI SEO/GEO work aimed at visibility within tools such as ChatGPT, Gemini and Perplexity. Alongside SEO, the agency lists pay-per-click, social media marketing, conversion optimisation and email marketing among its declared services. Its stated process runs as a six-stage cycle: setting commercial goals, auditing the site and competitive landscape, building a prioritised roadmap across technical, content, link and paid channels, executing and optimising campaigns, split-testing landing pages and ad copy, then reporting monthly on leads and revenue before scaling working strategies.