Berzerk

Based in Elx (Alicante), Berzerk works with businesses across Spain, combining artificial intelligence, SEO and Shopify development under a single working plan. The agency is small, with a team of between one and ten people, and positions itself around defining shared priorities and metrics with clients from the outset of a project. Its portfolio includes local SEO and content marketing work for a veterinary clinic in Alcoy, and a Shopify project that took a brand from concept to over €220,000 in sales and 3,300 pairs sold in its first year, indicating experience with both service-based local businesses and ecommerce brands. The agency's service lines cover four areas: applied AI and training, where it automates repetitive tasks, designs workflows using agents, and trains client teams to use AI tools; SEO built on technical architecture, content and authority-building aimed at capturing existing search demand; Shopify development and optimization, including Shopify Plus builds, conversion rate optimization and systems integrations designed to avoid technical debt; and custom web development using Next.js for cases where template-based sites no longer meet business needs, with a focus on speed and maintainability. Alongside client work, Berzerk publishes a weekly newsletter on AI prompts and model updates, and reviews tools such as ChatGPT, Semrush, CapCut and Framer, testing pricing and plan limitations before making recommendations.