Corporations with high communications volume and broad product portfolios achieve the greatest ROI from AI-supported communication -- provided the AI knows the brand. Luenstroth develops the training process: data selection and cleaning, model training on brand-specific language and tone, fine-tuning and evaluation. The result is an LLM that communicates in brand-appropriate tone, argumentation and substantive content. For globally active corporations with large product ranges, the investment typically returns within months.