By John Perkins
A growing share of the people who shape your sales, now open ChatGPT or Perplexity before they ever open Google. They ask a question, read the answer, and form a shortlist before they land on a single supplier website. If your brand is not named in that answer, you are quietly out of the running.
The short version is that AI search has become the new front door to research, and it favours sources it already trusts. For a sector built on evidence and professional reputation, that shift rewards the companies whose expertise is already visible and penalises those relying on a website alone. Improving your AI search visibility is no longer an emerging-tech experiment, it is part of staying on the shortlist.
LinkedIn matters here more than almost any other channel, because it is where these tools go looking. When SEMrush analysed the domains cited across ChatGPT, Perplexity, AI Mode and AI Overviews, LinkedIn came out as one of the most-cited domains, second only to Reddit, and it ranks higher still on the professional and clinical queries your buyers actually type. The detail most MedTech teams miss is that around 75% of those citations come from individual members rather than company pages, which means your visibility engine is your founders, clinical leads and commercial team posting under their own names, not your logo. SemrushMeltwater
What the research points to is fairly practical. People with larger followings are more likely to be cited, consistency helps, so two to three posts a week works better than the occasional flurry, and posts that attract genuine engagement tend to perform. Originality is doing a lot of the work too, with around 95% of cited posts being original rather than reshared, and articles between 500 and 2,000 words earning the largest share of citations. Leading with a clear answer near the top makes it easier for the model to understand what you are saying. LinkedIn
The catch is that these tools cross-check before they trust you, looking for the same claims on your own website, on Wikipedia and in the peer-reviewed literature, so a fast, crawlable site with clean, structured content has to sit behind the LinkedIn activity to confirm the signal. We saw both halves work together with Mediplus, a UK manufacturer competing against global multinationals, where treating search and AI answers as one workstream lifted LLM citations of their content by 39% in six months, alongside a 36% rise in organic clicks, almost entirely from the kind of non-branded questions buyers ask an AI tool first.
None of this is a future problem. AI search is already deciding which suppliers make the shortlist, out of sight of your reporting. If you want to see how your brand shows up in those answers today, and where the gaps sit against your competitors, that is what our MedTech LLM Visibility Programme is built to diagnose.
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What is AI search visibility? It is how often, and how accurately, your brand appears in answers generated by AI tools such as ChatGPT, Perplexity and Google AI Overviews when buyers research your category.
Why does LinkedIn help MedTech companies get cited by AI? AI tools draw heavily on high-authority sources, and LinkedIn is among the most-cited domains for professional queries. Posts from individual experts carry most of that citation weight, which suits MedTech's expert-led buying process.
How quickly can MedTech AI search visibility improve? It builds over months rather than days, as consistent expert content and stronger owned-site signals accumulate. For example, we helped Mediplus see LLM citations rise 39% over a six-month window.
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At SparkLife we help healthcare marketers reach and engage with more people, using our proven SparkLife marketing system.
Founded by John Perkins and Carolyn Kelday, we bring a unique combination of decades of healthcare expertise and cutting-edge digital knowledge to global life sciences companies.
