How to Fill a Conference Side Event With the Right People
Plan a conference side event that fills: build the guest list, time invitations, write the invite, confirm and remind guests, manage no-shows, and follow up.
A small dinner or breakfast during a conference can produce more pipeline than three days at a booth. It can also be a half-empty table and a large bill. The difference is rarely the venue or the menu. It is who you invite, when you invite them, and how you handle the days in between. This guide walks through each step of filling a conference side event with the right people.
Pick the format first
The format decides who will come and how many seats you need. Choose it before you build the list.
| Format | Typical size | Best for | Watch out for |
|---|---|---|---|
| Breakfast | 8 to 15 | Senior buyers with busy evenings | Early start, late arrivals |
| Dinner | 10 to 20 | Deeper conversations, relationship building | Competes with other evening events |
| Reception or drinks | 30 to 80 | Wider reach, partners, community | Hard to have real conversations |
| Roundtable lunch | 8 to 12 | A focused topic with peers | Needs a strong host or moderator |
For most B2B sales teams, a seated dinner or breakfast for 12 to 16 people is the sweet spot. It is small enough for real conversation and large enough to justify the effort. Seat your own people among guests. Plan one host from your side per four or five guests.
Check the conference agenda before you pick a slot. Avoid the night of the main party and the evening before the biggest keynote. Breakfast on day two is often easier to fill than dinner on day one.
Build the guest list
Start with a target list of accounts you want in the room, then find the right people at each one. Good sources include:
- Your open pipeline and stalled deals with contacts attending
- Target accounts from your sales team
- Speakers and panelists at the conference
- Exhibitors and attendees from public lists and the event app
- Existing customers who can speak well of you
- Partners who bring a relevant audience
For more on where to find attendees, see our guide to trade show attendee list sources.
Mix the room on purpose
The guests are the product. People come to a dinner for the other people at the table, not for your pitch. Aim for a mix like this:
- Mostly prospects at a similar level and in related roles
- Two or three happy customers who can talk about real results
- One or two people with a strong point of view, such as a speaker or analyst
- Your own hosts, spread across the table
Keep seniority level consistent. A table of heads of finance will not open up if half the seats go to junior analysts.
Over-invite with a plan
Not everyone will accept, and not everyone who accepts will come. Invite more people than you have seats, in waves. A simple approach for a 15-seat dinner (illustrative):
- Wave 1: invite 25 top-priority guests
- Wave 2: one week later, invite 15 more to fill gaps
- Keep a short waitlist of people you can invite in the final days
Track each person's status: invited, accepted, declined, no reply, confirmed. Do not send the next wave until you know where the first stands.
Time your invitations
Timing matters as much as wording. Too early and people do not know their schedule. Too late and their evenings are booked.
| When | Action |
|---|---|
| 5 to 6 weeks before | Book the venue, fix date and format |
| 4 weeks before | Send wave 1 invitations |
| 3 weeks before | Follow up once with non-responders |
| 2 to 3 weeks before | Send wave 2 to fill open seats |
| 1 week before | Confirm all accepted guests |
| 1 day before | Send a short reminder with logistics |
| Day of | Personal message in the morning |
Large conferences fill evenings early. For a major event, start a week earlier than this schedule.
Write an invitation people answer
Send the invitation from a person, not a brand. Use your own mailbox and plain text. It should read like a note from a colleague, not a flyer.
Subject: Dinner with heads of payments, Tuesday at Money20/20 Hi Daniel, I'm hosting a small dinner for 14 heads of payments on Tuesday, 19:30, at a restaurant ten minutes from the venue. The topic is how teams are handling cross-border settlement in 2027. Guests include payments leads from a few European fintechs and one of the speakers from the settlement panel. No presentations, just a good meal and an open conversation. Would you like a seat? I'll send details once you confirm. Sam
This works because it is specific. It names the audience, the topic, the time, and the size. It says what will not happen (presentations). It asks one question. The event named in the subject is only an example.
Avoid "exclusive," "VIP," and long paragraphs about your company. Mention your company only in your signature.
For more invitation wording, see our pre-event email templates.
Confirmations and reminders
An acceptance three weeks out is not a commitment. People's plans change at conferences more than anywhere else. Confirm and remind in three steps.
- One week before: "Looking forward to Tuesday. Just confirming you're still able to join. Any dietary needs?" Ask for a reply. The dietary question gives them a reason to answer.
- One day before: send the address, time, a map link, and your mobile number. Keep it short.
- Day of, morning: a one-line personal message. "See you at 19:30 tonight. Text me if anything changes."
If someone does not reply to the one-week confirmation, follow up once. If they still do not answer, assume they will not come and invite someone from your waitlist.
You can also send a short note through LinkedIn or the event app for guests who do not answer email. Write and send these yourself, one by one. Do not use automation for this.
Managing no-shows
Even with good confirmations, expect a few empty seats. Plan for them.
- Confirm a final number with the venue that accounts for some no-shows
- Seat hosts flexibly so empty chairs do not leave someone isolated
- Keep two or three local contacts you can invite on short notice
- Ask your own team at the conference if someone can join as a backup host
- Do not chase no-shows during the dinner; focus on the guests who came
After the event, send no-shows a short, warm note: "Sorry we missed you on Tuesday. I'd still like to hear how your team is handling settlement. Would a 20-minute call next week work?" Many no-shows are simply overbooked, and the invitation still built some goodwill.
Follow up after the event
The dinner is not the outcome. The meetings after it are. Before you go to sleep, write a short note on each guest: what they care about, what they said, and what next step makes sense.
Send follow-ups the next morning:
- Strong interest: propose a specific meeting with two time options
- Good conversation, no clear need: thank them and share one relevant resource
- Customers who attended: thank them personally; they did you a favor
- No-shows: a short note offering a call instead
Reference something from the evening in every message. "You mentioned your team is moving settlement to a new provider in Q2" is far better than "Thanks for coming to dinner." Our trade show follow-up playbook has more on timing and templates.
Side event checklist
- Format and date chosen, checked against the conference agenda
- Venue booked within easy walking distance or a short taxi ride
- Target list built with a deliberate mix of prospects, customers, and voices
- Invitations sent in waves from a personal mailbox
- Status tracked for every invitee
- Confirmation one week out, reminder one day out, message the morning of
- Waitlist and backup hosts ready
- Notes written on every guest the same night
- Follow-ups sent the next morning, including to no-shows
Hallway helps you build the guest list from attendee and speaker sources, send invitation waves timed to the event from your own mailbox, and track who confirmed. Start free for 14 days, or let our team fill the table for you through the done-for-you service.