Sumax

Based in Dortmund, this agency positions itself as an online marketing provider with a focus on both the German market and international expansion across Europe. It works with companies from a range of industries and business models, including SaaS, B2C and B2B, that need to reach audiences domestically or scale into new markets, languages and search engines. The team is described as combining market analysis with native-speaker expertise to support clients entering foreign markets, alongside more conventional digital marketing needs such as traffic generation, brand awareness, lead generation and e-commerce revenue growth. The declared service range covers SEO (including international SEO, SEO audits, SEO consulting, link audits and link building), Google Ads, TikTok and LinkedIn marketing, Amazon SEO, and a GEO-focused offering. Additional listed services include website relaunch support, usability and landing page optimization, conversion optimization, social media marketing and social media recruiting, reputation management, and content creation and content marketing. On the consulting side, the agency offers SEO audits, SEO strategy advice and broader digital strategy consulting. Work is described as data-driven and performance-oriented, with campaigns built around funnel relevance and defined KPIs, and strategies developed holistically across channels rather than as isolated single-service engagements. The agency states it has been active in online marketing for more than 20 years and employs more than 50 people.