Ninety-five percent of the time, the vendor who wins a B2B deal was already on the buyer's shortlist before the buying process officially began. Not halfway through. Not after the first demo. Day One.
That statistic, from 6sense's 2025 B2B Buyer Experience Report, should make every marketer pause and reconsider what demand generation actually means. Because if buyers are filling four of five spots on their vendor shortlist before they've even started evaluating options, then the game isn't won during the buying process. It's won before the buying process exists.
This is where opportunistic learning enters the conversation, and why it deserves a permanent seat at your strategy table.
The Paradigm We've Been Selling Ourselves
For the better part of two decades, B2B marketing has operated under a comforting assumption: buyers recognize a problem, begin researching solutions, discover vendors, evaluate options, and make a decision. Our job, we told ourselves, was to be present and persuasive during that journey.
The problem? That model describes maybe 5% of how buying actually happens.
Recent analysis from CustomerThink highlights what researchers are calling opportunistic learning, the phenomenon where buyers accumulate knowledge about vendors, solutions, and categories long before any formal buying process begins. They're not researching because they have a problem to solve. They're absorbing information because they're professionals who pay attention to their industry.
Think about your own behavior. You probably know which CRM platforms exist, which marketing automation tools your peers use, and which analytics vendors are gaining traction, even if you're not actively shopping for any of them. That's opportunistic learning. And when a need does arise, you don't start from scratch. You start from memory.
The Math That Should Keep You Up at Night
The 6sense research surveyed nearly 4,000 B2B buyers across North America, Europe, and Asia-Pacific. The findings paint a picture that should fundamentally reshape how we allocate marketing resources.
Buyers evaluated an average of five vendors per purchase. Four of those five were identified on Day One of the buying process. And 97% of respondents said they had prior experience with at least one vendor on their initial shortlist.
6sense's deeper analysis puts it bluntly: "There are no blank slates in B2B buying." The typical buyer in their study had been through eight to nine prior purchase journeys in the same solution category. These aren't novices discovering your market for the first time. They're experienced professionals who've already formed opinions about who belongs on their list.
The vendor ranked first at the end of what 6sense calls the Selection Phase, before any seller conversations happen, wins the deal roughly 80% of the time. By the time your sales team gets a meeting, the buyer has likely already decided who they prefer. The conversation isn't discovery. It's validation.
Where Marketing Actually Wins (and Loses)
If the real competition happens before buyers declare intent, then the marketing activities that matter most are the ones that build familiarity, credibility, and mental availability when no one is actively shopping.
Research synthesized by INVRSN Agency from Gartner and Harvard Business Review found that 80% of B2B buyers have a set of vendors in mind before they do any research. If your brand isn't already familiar to them, your probability of being selected drops below 5%.
Five percent. That's the penalty for being discovered after the buyer starts looking.
This creates an uncomfortable truth for performance-obsessed marketing organizations: the activities that show up cleanly in attribution models, the demo requests, the form fills, the MQLs, are measuring the tail end of a process that was largely decided elsewhere. You're measuring who crossed the finish line, not who was invited to the race.
Opportunistic Learning in the Age of AI
Here's where things get interesting, and more urgent. AI has restructured how buyers conduct research, and not in the ways most marketers expected.
According to 6sense, 94% of B2B buyers used large language models during their most recent purchase process. But they're not using AI at the beginning of their journey to discover vendors. They're using it in the middle, to compare offerings, evaluate proposals, and synthesize information they've already gathered.
The implication? AI isn't replacing the need for brand awareness. It's amplifying the advantage of brands that buyers already know. When a buyer asks ChatGPT to compare vendors in a category, the AI draws on the information ecosystem that already exists. If your brand has been consistently present in industry conversations, publications, and peer discussions, you're more likely to surface. If you've been invisible until the buyer declared intent, you're probably not in the prompt.
Recent data from Omnibound shows that GenAI chatbots are now the single biggest influence on B2B vendor shortlists, cited by 17.1% of buyers, above vendor websites (12.8%) and peer recommendations (8.9%). The brands winning in AI-influenced discovery are the ones that were already winning in human-influenced discovery: those with consistent presence, clear positioning, and content that gets referenced.
What This Means for Your Strategy
If opportunistic learning is where competitive advantage is built, then marketing needs to shift from campaign-centric thinking to continuous presence.
Tushar Warrier's analysis of always-on marketing captures the problem with campaign bursts: "In the gaps, which is most of the time, the market continues without you." B2B buying decisions don't follow your planning cycle. They follow the buyer's timeline. And if you're only present during campaign windows, you're absent for most of what matters.
This doesn't mean abandoning demand capture. It means recognizing that demand capture only works on buyers who already know you exist. The 6sense research found that buying cycles have compressed from 11.3 months in 2024 to 10.1 months in 2025, partly because AI allows faster research and partly because economic uncertainty is pushing faster decisions. But the shortlist formation hasn't slowed down. If anything, it's happening earlier.
The practical implications:
Invest in category presence, not just product marketing. Buyers form opinions about vendors by observing who shows up consistently in industry conversations. Thought leadership, peer communities, and category-level content build the familiarity that gets you on the Day One list.
Make your content AI-accessible. Structure your website, FAQs, and comparison content so that AI tools can parse and summarize it accurately. If a buyer asks an LLM about your category and your brand doesn't surface, you've lost before you knew you were competing.
Measure what matters before intent. Brand awareness, unaided recall, and share of voice in category conversations are leading indicators of pipeline health. They're harder to measure than MQLs, but they're more predictive of who wins.
Align sales expectations with buyer reality. Your sales team isn't educating buyers. They're validating decisions that are largely already made. The content and positioning that shapes those decisions happens in marketing, months before sales gets involved.
The Long Game Is the Only Game
Marketing is like dating, I've said before. You don't propose on the first ad impression. But opportunistic learning takes that analogy further: by the time someone agrees to a first date, they've already decided whether you're worth their time based on everything they've observed about you from a distance.
The brands that win in B2B aren't the ones with the best pitch deck or the most aggressive SDR cadence. They're the ones that buyers already trust before the buying process begins. They're the ones that showed up consistently, added value to industry conversations, and built mental availability through years of presence, not weeks of campaigns.
Madison Logic's research on brand-to-demand strategy found that buyers won't include you on their Day One list if you haven't built brand recognition and trust before they start looking. That's not a marketing theory. That's the math of how B2B buying actually works.
So here's the question every CMO should be asking: When your future buyers are casually absorbing information about your category, scrolling LinkedIn, reading industry publications, asking AI for vendor comparisons, are you there? Or are you waiting for them to raise their hand before you show up?
Because by the time they raise their hand, they've already decided who to call.
