Gartner puts the typical B2B buying group at six to ten decision-makers. Now count the people at your target account who actually receive your outreach: the champion whose email you have, maybe their boss, occasionally a second stakeholder someone met at a conference. Two, usually. Three on a good account. The rest of the committee — the CFO who kills deals on cost, the security lead who kills them on risk, the end users whose shrug kills them on apathy — form their opinion of you in rooms you will never enter, from materials you didn't choose, relayed by people you've never spoken to.
Most ABM budgets respond to this by buying more impressions against the two people they can already reach. The math of that decision rarely gets said out loud.
Why can't you just find the rest of the committee?
Because committees don't exist in your data vendor. They form deal by deal, drift as the evaluation matures, and include people whose titles would never survive your ICP filter — the staff engineer the CTO trusts, the ops manager who'll live with the rollout. Gartner's research adds the uncomfortable detail that each member shows up with independently gathered information. Translation: while you nurture your champion, five other people are googling you, reading a competitor's comparison page, and forming positions before your first meeting with them — which will never happen.
The asset your champion can carry into the room
You can't email the invisible committee. But your champion walks into rooms with them every week, and champions want to advocate — what they lack is material built for handing over. A forwarded deck dies in the committee's inbox exactly like your cold email died in your champion's.
Physical material behaves differently. A premium box lives on the champion's desk, gets asked about, gets shown. A video brochure inside it is a pitch that performs itself: the champion opens the cover in the meeting, and the committee watches ninety seconds of exactly the message you'd have delivered if you were there. No login, no projector, no telling-it-wrong. It's the only ABM asset designed for the hand-off instead of the inbox.
The signal that tells you the committee is forming
Here's where the play becomes measurable. Connected brochures report location with each watch, so when the box sent to your champion in Denver gets watched Tuesday in the Chicago headquarters, you've just observed the hand-off itself — pass-around. In our experience, that's the strongest single buying signal physical outreach produces: a real person decided your message was worth carrying to a second human. Committee expansion, observed directly, weeks before it shows up as a new name on an email thread.
Run it as part of the tier-one account play: box to the champion at the moment the deal needs to widen, video built to be shown rather than forwarded, and Slack alerts on watch and travel events so the rep calls while the committee is literally holding the message in its hands.
Frequently asked questions
How big is a typical B2B buying committee?
Gartner puts the typical buying group for a complex B2B solution at six to ten decision-makers, each arriving with their own independently gathered information. Most ABM programs have contact data for two or three of them at best.
How do you reach buying committee members you can't identify?
You don't reach them — your champion does. The committee members you can't see all talk to the ones you can. Physical materials are built for that hand-off: a box with a video brochure gets carried into offices and meetings your sequences will never enter, and connected versions report when that hand-off happens.
What is pass-around detection?
Connected video brochures report their location along with each watch event. When a brochure sent to one office gets watched again in a different one, that physical movement — pass-around — means someone walked your message to a colleague. It's the clearest committee-expansion signal that exists, and it happens without anyone filling out a form.