LangSync is a London-based Large Language Model Optimisation (LLMO) agency that helps brands, publishers, and digital teams become visible in AI-powered search environments such as ChatGPT, Perplexity, Claude, Gemini, and Google’s AI Overviews. It focuses on making client content retrievable, citable, and snippet-ready for large language models by rewriting content in AI-native formats, structuring sites with JSON-LD and entity markup, and aligning architecture for vector and concept-based search. The agency provides strategic visibility services across answer engines, using schema, embeddings, internal links, and proprietary monitoring tools to track how AI platforms represent brands and to boost discoverability, relevance, and authority in AI-generated answers. Founded by ex-Google and DeepMind engineers, including former Google partnerships lead Sal Mohammed, LangSync positions itself as one of the first and leading agencies dedicated to optimisation for AI-driven search and the AI-first web.
