The consumerisation of B2B buying is no longer a trend piece prediction, it is the operating reality of every deal you are in. Millennials and Gen Z now make up 71% of B2B buyers, per Forrester, and they research vendors the way they research trainers, restaurants and holidays: privately, socially and mostly without you. This post pulls together the strongest published data on how business buying now mirrors consumer buying, and what founders should change first.
Key takeaways
Millennials and Gen Z made up 71% of B2B buyers in 2023 (Forrester), and 67% of buyers on deals worth more than $1m came from these two cohorts.
67% of B2B buyers now prefer a rep-free buying experience (Gartner, 2026), up from 61% the year before.
39% of B2B buyers are willing to spend $500,000 or more on a single order through self-serve or remote channels, up from 28% two years earlier (McKinsey B2B Pulse).
78% of buyers only shortlist products they had already heard of before starting research (TrustRadius), and 71% of those buyers went with their top choice.
The practical conclusion: B2B purchases are decided by consumer-style brand memory built long before the funnel, which is why launch and cultural brand building now do the heavy lifting that sales decks used to do.
Why does this matter now?
Because the buyer changed faster than the playbook did. Most B2B go-to-market motions were designed for a buyer who wanted a rep to guide them: gated PDFs, discovery calls, staged demos. The people approving purchases today grew up with Amazon reviews, TikTok recommendations and one-tap checkout, and they carry those instincts into procurement. Forrester found that 90% of younger buyers reported dissatisfaction with their chosen vendor in at least one area, against 71% of older buyers. The disconnect is not that younger buyers hate sales. It is that the buying experience they are offered feels a decade older than every other purchase they make.
For startups this is an advantage, not a threat. Incumbents have funnels and habits to defend. A new brand can build its go-to-market around how under-40 buyers actually behave from day one, which is exactly the thinking behind our work on cultural brand building for startups.
What the data shows
Line up the published research and the pattern is unmistakable. Business buying now follows consumer psychology at every stage.
The buyer is younger. Millennials and Gen Z are 71% of B2B buyers (Forrester, 2023), and they dominate large deals, not just small ones.
The journey is self-serve. Gartner's buying journey research shows buyers spend only 17% of the purchase process meeting with potential suppliers, and its 2026 survey found 67% prefer no rep involvement at all.
The basket is consumer-sized in behaviour, enterprise-sized in value. McKinsey's B2B Pulse found 39% of buyers will spend $500,000 or more per order through self-serve digital or remote channels.
The shortlist is built from memory. TrustRadius found 78% of buyers only considered products they already knew, and product demos were the top decision resource at 58%, ahead of any salesperson.
First contact comes late. 6sense's 2025 Buyer Experience Report puts first vendor contact at roughly 60% of the way through the journey, with 94% of buying groups having already ranked a favourite, which they bought 77% of the time.
The content diet is consumer. Forrester reports 78% of Gen Z and 68% of millennial buyers find social video helpful during purchasing, versus roughly 1 in 6 boomers.
Why do B2B buyers behave like consumers now?
Because the psychology never changed, only the permission did. The rational B2B buyer was always a convenient fiction, as we covered in our insights series. What changed is that younger decision-makers no longer perform rationality for its own sake. They trust peer proof over vendor claims, they treat a clunky website as a proxy for a clunky product, and they experience switching costs, social risk and status in a work purchase exactly as they do in a personal one. The Ehrenberg-Bass Institute's 95:5 rule, published with the LinkedIn B2B Institute, gives this a hard edge: about 95% of your category is not in market at any moment, so the brands that win are the ones remembered when the 5% moment arrives. That is consumer marketing logic, applied to enterprise deals.
AI has accelerated it. Buyers now use assistants and AI search to build shortlists before any human conversation, and Gartner finds 69% of buyers now use sales reps mainly to validate AI-generated insights. The rep has moved from guide to fact-checker.
What does this mean for the funnel?
It means the funnel you can see is the last 40% of the decision. If 78% of shortlists are drawn from brands the buyer already knew, and buying groups arrive with a ranked favourite they choose 77% of the time, then MQL-stage marketing is largely competing for second place. Look at who wins with under-40 buyers. Stripe turned documentation into its primary sales asset so developers could evaluate without speaking to anyone. Figma spread designer to designer inside companies long before an enterprise contract was signed. Gong built a media-style presence on LinkedIn so revenue teams knew the brand years before a renewal window opened. None of these are funnel plays. They are memory plays.
The Ignita insight: this is a memory problem, not a UX problem
Most commentary reads the consumerisation of B2B buying as a UX brief: add self-serve pricing, shorten the demo, polish the onboarding. Necessary, but it misses the point. If the decision is substantially made before first contact, better buying UX just makes it easier to buy the brand the committee already preferred. The real lever sits earlier, at launch. A launch is not an announcement, it is the top of a funnel you will never see: the moment a brand either enters the cultural memory of people who will not be in market for years, or does not. This is why we tell founders that launch PR and cultural brand building are demand creation, not vanity, and why the startups that launch loudly with proof, personality and distribution into dark social channels keep appearing on shortlists they never pitched for. We unpacked a live example in our launch teardowns on the Ignita insights hub.
What founders and marketers should do
Treat your launch as memory creation. Design launch moments for the 95% who are out of market: a sharp narrative, a founder with a face, and assets that travel in group chats and feeds, not just a press release.
Publish your pricing and let people try the product. With 67% preferring rep-free buying and demos the top decision resource, gated everything is a tax on your own pipeline.
Build peer proof where buyers actually look. Reviews, community threads and named customer stories beat gated case study PDFs for buyers who trust people over brands.
Make short-form video a core B2B format. 78% of Gen Z buyers find social video helpful in purchasing. Founder-led video is the cheapest trust asset most B2B startups are not making.
Prepare for the AI shortlist. If buyers validate AI-generated research with reps, audit what AI assistants say about your category and make sure your proof, pricing and positioning are crawlable and quotable.
Re-weight budget from capture to creation. Score your spend against the 95:5 rule. If almost everything targets in-market buyers, you are renting demand your competitors' brands created.
FAQ
What is the consumerisation of B2B buying? It is the shift of consumer buying behaviour into business purchasing: self-serve research, peer reviews, social and video content, and a preference for buying without sales involvement, now backed by data from Forrester, Gartner, McKinsey and TrustRadius.
Who is driving it? Younger decision-makers. Forrester puts millennials and Gen Z at 71% of B2B buyers, and 67% of buyers on deals above $1m.
Do B2B buyers really buy without sales reps? Increasingly, yes. Gartner's 2026 survey found 67% of buyers prefer a rep-free experience, and McKinsey found 39% will spend $500,000 or more per order through self-serve or remote channels.
Does brand actually influence B2B purchases? Strongly. TrustRadius found 78% of buyers only shortlist products they had already heard of, and 71% of those bought their top choice. Brand memory largely sets the shortlist.
When do buyers first contact vendors? Around 60% of the way through the buying journey, according to 6sense's 2025 Buyer Experience Report, usually with a ranked favourite already chosen.
What should a startup change first? Front-load brand: launch with a memorable narrative and founder visibility, publish pricing, open up demos, and invest in peer proof and short-form video before spending more on in-market capture.
