Direct answer
AI Search is changing B2B marketing in two directions: AI is reshaping how marketing teams operate and how buyers discover, evaluate and shortlist companies. BCG’s 2026 CMO research shows that this shift is already affecting brand discovery, no-click buyer journeys and marketing infrastructure.
Key takeaways
- 90% of CMOs say GenAI is already reshaping how customers discover and evaluate brands.
- 96% report significant AI transformation in marketing, while 42% still mainly use GenAI for individual tasks.
- 76% of B2B CMOs say AI-mediated, no-click discovery is reshaping customer journeys.
- The B2B website is becoming both a destination for buyers and a source for search engines and AI systems.
- AEO and GEO are emerging as marketing disciplines, but Overflow uses AI Search as the broader term.
AI is changing B2B marketing in two directions at once. It is changing how marketing teams operate, but it is also changing how buyers discover, evaluate and shortlist companies.
Boston Consulting Group’s 2026 global CMO study offers a useful picture of how far that shift has already progressed. BCG surveyed 300 CMOs across B2B and B2C organizations and supplemented the research with structured interviews with another 50 CMOs.
The numbers are striking. 96% of CMOs say AI is driving significant transformation across marketing, yet 42% still primarily use generative AI as an assistant for individual tasks. At the same time, 90% say GenAI is already reshaping how customers discover and evaluate brands.
For B2B marketers, this creates an important shift. Your website is no longer only a destination that buyers visit. It is increasingly also a source that search engines and AI systems use to understand your company, products, expertise and authority.
Here are five findings from the BCG research that we think matter most for B2B marketing.
1. AI is changing how buyers discover brands
One of BCG’s most important findings is that 90% of CMOs say GenAI is already reshaping how customers discover and evaluate brands.
That changes the traditional relationship between search, website traffic and brand discovery.
A potential customer can now ask ChatGPT, Gemini, Perplexity or another AI system which companies they should consider, how different solutions compare, or which provider best fits a particular problem. They can receive recommendations, compare alternatives and form an initial opinion without visiting every company's website.
For B2B companies, this makes AI Search an increasingly important part of discoverability.
Our interpretation is that visibility can no longer be measured only by rankings and website traffic. B2B marketing teams also need to understand whether AI systems know their company, associate it with the right topics and include it when buyers ask relevant commercial questions. This broader AI visibility includes mentions, citations, recommendations and accurate brand representation.
2. Most marketing teams are still using AI too narrowly
BCG found that 96% of CMOs believe AI is driving significant transformation across marketing, but 42% still primarily use GenAI as an assistant for individual tasks.
That gap matters. Using ChatGPT to rewrite an email, summarize research or generate a first draft can improve individual productivity. But it doesn't fundamentally change how marketing operates.
The bigger opportunity is to connect AI to repeatable systems.
At Overflow Agency, for example, we are experimenting with workflows that combine live data from sources such as Google Search Console and Ahrefs, identify content and AI Search opportunities, research potential actions and prepare the next step for human approval.
The marketer moves from manually executing every individual task toward designing, supervising and improving the system that executes those tasks.
For B2B marketing teams, that could mean systems for continuously identifying content gaps, monitoring search visibility, detecting technical website issues, researching buyer questions or identifying changes in AI Search visibility.
The competitive advantage therefore becomes less about who can write the best prompt and more about who can build the best marketing infrastructure.
3. AI-mediated, no-click discovery is already affecting B2B funnels
The shift is particularly relevant to B2B. BCG reports that 76% of B2B CMOs say AI-mediated, no-click discovery is already reshaping their customer journeys.
“No-click” discovery means a potential customer can learn about a market, compare solutions or discover companies without immediately clicking through to their websites.
This matters because B2B buying journeys were already nonlinear. Buyers move between Google, LinkedIn, review platforms, communities, analyst reports, vendor websites and conversations with colleagues. AI adds another research layer on top of that journey.
A buyer might ask an AI system which platforms solve a problem, which agencies specialize in a project, how two providers differ, or which companies belong on a shortlist.
By the time that buyer eventually reaches your website, part of their opinion may already have been formed elsewhere.
For B2B marketers, the implication is significant: the buying journey can start before the website visit, while the information on the website can still influence what happens before that visit.
Techniques such as query fan-out and retrieval help explain how AI systems can discover and combine information across multiple sources during that research process.
4. The B2B website is becoming both a destination and a source
This is where we think the implications of BCG’s research become particularly interesting.
Historically, the primary objective of a B2B marketing website was relatively straightforward: attract visitors, communicate the value proposition and convert demand.
Those jobs still matter. But the website increasingly has another audience: machines.
Search engines, retrieval systems and AI models can use information published across the web to understand what a company does, which topics it has expertise in, how its products relate to a market and whether it is a credible source or recommendation.
That means the B2B website increasingly serves two functions. For humans, it needs to explain, persuade and convert. For machines, it needs to make the company and its expertise easy to understand, retrieve and connect to the right entities and topics.
This makes website architecture, content structure, technical foundations, entity consistency and authority more important. Structured data can also make real entities and relationships more explicit in a machine-readable format when it accurately reflects visible content.
It is also why we see Webflow SEO and AI Search becoming increasingly connected. A technically strong website provides the foundation, while clear content and external authority help search and AI systems understand why a company matters.
The website isn't disappearing because of AI. Its role is expanding.
5. AEO and GEO are becoming real marketing disciplines
BCG also found that many CMOs are creating dedicated teams around AEO (Answer Engine Optimization) and GEO (Generative Engine Optimization).
The terminology is still evolving. AEO, GEO, LLMO and AI Search Optimization are often used to describe overlapping parts of the same challenge: increasing a brand's visibility in AI-generated answers.
At Overflow Agency, we generally use AI Search as the broader term.
The important question isn't which acronym wins. It is whether your company appears when potential customers use AI to research the category you operate in.
That requires more than adding a few paragraphs written for ChatGPT. AI systems build their understanding from signals distributed across the web. Your own website matters, but so do third-party mentions, citations, reviews, structured information, authoritative content and consistency in how your company is described.
Concepts such as entity SEO, structured data and off-site authority therefore become part of the same broader problem: making it easy for search engines and AI systems to understand who you are, what you do and why you are relevant to a particular query.
What this means for B2B marketing teams
Taken together, BCG’s findings point toward a larger change in B2B marketing.
AI is not simply another productivity tool for marketers. It is becoming part of both sides of the marketing system.
On one side, AI is changing how marketing gets done. Individual tasks can increasingly become repeatable workflows and systems.
On the other, AI is changing how customers discover companies. Buyers can research markets, compare providers and build shortlists through AI interfaces before reaching a company's website.
That brings two disciplines closer together: the systems behind your marketing operation and the information infrastructure behind your digital presence.
Overflow Agency is a B2B marketing agency specializing in B2B marketing websites built with Webflow and AI Search. We see those disciplines becoming increasingly connected because the website remains a company's most important owned source of information, while AI systems are becoming another interface through which buyers discover and evaluate that information.
The B2B website therefore has to work for both audiences. It needs to persuade human buyers, while also providing clear information, credible evidence and a strong technical foundation that search engines and AI systems can interpret.
The companies that adapt won't simply use more AI. They'll build marketing systems around it — and make sure the information those systems discover gives them a reason to recommend their brand.
More B2B. Less generic.
Add Overflow as a preferred source on Google to see more of our B2B marketing insights when they’re relevant to your search.
Still have questions?
AI Search changes both marketing operations and buyer discovery. B2B buyers can use AI systems to research categories, compare providers and form shortlists before visiting vendor websites, while marketing teams can use AI to automate repeatable research, analysis and content workflows.
No-click discovery means a buyer can learn about companies, products or a market through an AI-generated answer without immediately visiting the underlying websites. The website still matters because its information can contribute to how AI systems understand and represent the company.
A B2B website increasingly serves two audiences: human buyers and machines. It must persuade and convert people while also providing clear, accessible and credible information that search engines and AI systems can retrieve and interpret.
AEO, GEO and related terms overlap but emphasize different aspects of visibility in AI-generated answers. Overflow Agency uses AI Search as the broader category covering how brands are discovered, understood, cited and recommended across AI-powered search experiences.
Sources & references
This article combines first-party research, industry studies and practical findings from our work with B2B marketing teams. Statistics and external claims are linked to their original sources.