In short. People return to rooms where they met someone useful. That depends more on who you convene and whether attendees can prepare than on the venue, the format or the speaker.
A monthly networking event rarely dies suddenly. It thins. Forty becomes thirty, thirty becomes the same twelve people who always come, and at some point it stops being worth the room hire.
What is actually happening is that each event is producing fewer useful introductions than the last, and attendance is a lagging indicator of that.
The thing that brings people back
People return to rooms where they met someone useful. Not rooms with a good speaker, not rooms with good coffee, and not rooms they enjoyed. Those help at the margin. The thing that puts a recurring event in someone’s diary is having got something out of the last one.
Which means your job as an organiser is less about programming the evening and more about raising the odds that any two given people in the room find each other.
Four things that raise those odds
1. Convene narrowly, at least at first. A room with a shared situation in it produces conversations. “Business owners in Northamptonshire” is a demographic, not a situation. “Owner-managed businesses thinking about selling in the next three years” is a situation, and everyone in that room has something to say to everyone else. Narrow rooms feel smaller and work harder.
2. Let people prepare. An attendee who knows who is coming can decide who they want to meet before they arrive, and that single change does more for the quality of conversation than any icebreaker. A printed list on the door is too late. A fortnight is about right.
3. Police the mix. Every open networking room drifts towards people who sell to the people the room was for, because they are the most motivated to attend. A room that was for founders and is now mostly accountants, coaches and web agencies selling to founders will lose the founders, and then it will lose the accountants. Watching the ratio is unglamorous and it is the main maintenance job.
4. Make the follow-up somebody’s problem. Most introductions die in the week after. If nothing in your format addresses that week, you are relying on individual discipline, which is a thin reed. Something as simple as a day-after email naming who was in the room helps.
Four things that quietly kill a format
Growing for the sake of it. A room of 120 is not a bigger version of a room of 40, it is a different and worse product unless the format changes with it. Past about 50 people, nobody meets anybody without help.
Front-loading the agenda. Ninety minutes of speakers and twenty minutes of networking is a seminar. If the networking is the product, it needs most of the clock.
Charging before it works. Paid rooms have to be good from the first event. Free ones get a few attempts to find their footing, and most formats need them.
Never asking who came back. It is the one number that tells you the truth and the easiest one to avoid looking at.
What we built for this
The Gantry exists because point 2 is the hardest to do with a spreadsheet. The Rooms open 14 days before the event so attendees can read who is going and shortlist people deliberately, and stay open for 7 days afterwards so the follow-up has somewhere to happen.
For organisers, all of it is free: unlimited listings, bulk delegate upload, the full room handed to every one of your delegates for your event, and analytics covering attendance, outreach and repeat attendance. There is no per-event fee and no subscription, because a monthly room of thirty people cannot carry one and those are exactly the rooms that need the help.
What you get for it is the number this article is about: whether people came back.
If you want to put a figure on the current position first, the cost per connection calculator works it out from your own event costs and attendance.