Yes. In fact, smaller companies can gain a competitive edge by adopting Response Marketing early, because the field is still barely contested. Large corporations take time to adapt internal processes. An agile company that starts working on integrated GEO and SEO now can claim positions that will be hard to take away later.
The initial investment does not need to be high. Step zero is free: open ChatGPT, Gemini and Claude, search for your market segment and see whether your brand shows up. If it does not, you already know the size of the opportunity. From there, the work can start with simple actions such as structuring existing content with schema markup, publishing optimized articles and building presence in relevant communities.
The critical point is consistency. Response Marketing is cumulative. Every article published, every backlink earned and every AI mention reinforces the next result. Companies that keep a steady pace, even on a modest budget, see meaningful results within 3 to 6 months.