Trade Show Follow-Up: What to Do in the 90 Days After the Booth

Sort the badge scans the day you get back. The hot leads get a call or a personal message from the rep who met them, within 48 hours. Everyone else who fits your market gets a short note from your own LinkedIn about something that happened at the show, and then the whole list stays on watch for 90 days, so every later message has a dated reason behind it.

Why the week after the show costs more than the booth

The booth is the cost everyone sees. German exhibitors put 45% of their marketing budget into trade fairs in the 2023/24 season, up from 38% a year earlier, according to AUMA, the German trade fair association.

Most teams stop counting too early. AUMA's 2026/27 outlook surveyed 404 German exhibitors in November 2025. About 49% judge a show mainly by its leads and contacts, and about 20% by booth traffic. Only about 17% name revenue or orders as the measure. About 10% barely measure it at all, and a few wrote "gut feeling".

Speed is the other leak. An EXHIBITOR Magazine piece on lead management put the share of exhibitors who respond within 24 to 48 hours of a show at 22%. The magazine's 2015 Sales Lead Survey found that only 16% of companies keep nurturing prospects until they buy. Both numbers are about ten years old and we found no newer survey, so read them as a direction.

The market around shows has the same shape. On 30 September 2026 we mapped 22 tools and services sold to exhibitors. Eight work before the show, mostly matchmaking and meeting booking, and eight are badge and lead capture apps. The four post-show services are all phone teams that call in the first days. The last two are a data vendor and a signal tool. Before the show, every buyer gets pitched by half the floor. A few weeks after it, almost nobody is still writing.

Step 1: Sort the badge scans before anyone writes

Do it on day zero or day one, with the people who worked the booth. They remember the conversations now. In a week the scans are just names.

The scan list is the small list. Two bigger ones sit next to it: everyone in your market who attended, if the organizer publishes a directory or an app list, and the people who reacted to or commented on posts about the show, yours included. Run the same sort on both.

Then filter. In our own production run on 21 August 2026, 161,072 companies went through the ICP filter and 8,689 passed, about 5%. A show audience is warmer than a raw database, but the habit holds: decide who the buyer is before anyone writes a word. If your ICP is still loose, start with an ICP built for signal-based selling.

Step 2: Write about the show

The first message comes from a person. For the fit bucket that means your own LinkedIn, not the company page or a no-reply address with a brochure attached. People can place a face from the booth. Nobody remembers which booth had which logo.

Name one thing that happened, like a question they asked or the talk they went to, and ask one short question. Two examples:

For someone you met: "Hi Maria, thanks for stopping by on Thursday. You asked how we handle returns across three warehouses and I gave you the long answer. The short one is that we route them by site. Worth 20 minutes next week?"

For an attendee you did not meet: "Hi Tom, saw you were at the show too. The panel on cross-border returns was the one people were still arguing about at dinner. How did it land with your team?"

The invitation can go without a note. Between June and September 2026 we sent 836 LinkedIn invitations to people picked by signals, with no note. 40% accepted, and 25% of the people we then messaged replied (HeyReach data, pulled 1 October 2026). Expandi's 2026 benchmark across 13.2 million requests puts average acceptance at 28.5% and replies at 10.4%. Our invitations said nothing, so the lift came from who we picked. A show you both attended last week is about as fresh as a reason gets.

Email is the second channel, for people who do not accept. Keep it plain text, with the same specific detail in the first line, like our buying signal email examples.

The 90-day trade show follow-up timeline

The first two weeks run on the memory of the show. After that, one more "following up on the event" just adds to the noise. From day 30 the reason has to come from their side, like a new hire or a post about the problem you solve.

That is why the plan runs 90 days instead of three emails. No reply isn't no. It's not yet. Most of your list was not buying the week of the show, and some of it will be a few months later. How long each reason stays usable is in buying signal decay.

What to watch between shows

Most of the list will be quiet most weeks. Watching tells you who moved.

Job changes. A contact from the booth moves to a new company, and you get a new account where someone already knows your name. More in job change signals.

Hiring for the role you sell into. A company posting the job your product supports is about to feel the problem you solve. See hiring signals.

New people joining the account. A new leader usually reviews the vendors they inherited. In our own production on 15 September 2026, a 90-day lookback over 186 watched companies found 111 people who had just joined them, each with a dated post, and the next weekly run added 16 more. In a 100-company test, though, 55 companies produced no joiners in 90 days, so expect new names in some accounts and silence in others.

Posts and comments. A contact who writes about the problem you solve is telling you what to say next.

Company news. A new site or an acquisition is weak on its own, but next to a people signal it often explains the timing.

Two signals on one account beat one, which is the case for signal stacking. After day 30 the rule is short: if you cannot say what changed, do not write. The full loop is in signal-based selling.

Which tool fits which exhibitor

Not every exhibitor needs a tool for this, let alone a service.

• One or two shows a year, under about 100 scans, reps with time. A lead capture app plus your reps' own LinkedIn is enough. Run the timeline above by hand.
• Hundreds of scans and calls needed within days, in the local language. Hire a phone follow-up team. That is what the post-show services we mapped do.
• Your real problem is getting meetings before the show. Use the organizer's matchmaking or a platform such as Brella, Grip or Swapcard.
• You only need the attendee or exhibitor list as data. Buy it from a list vendor, and decide up front who will work it.
• Three or more shows a year, and nobody owns the 90 days after. This is the case B2B Signals is built for. Done for you, we take your scans, the attendee list and the people who engaged with your show posts, filter them to your ICP and watch every account between shows. Each message is drafted for your approval and goes out from your own LinkedIn, so every connect or reconnect carries a reason.

Common trade show follow-up mistakes

One email blast to every scan the Monday after. The student and the buyer get the same text, and it reads like what it is.

Letting scans sit while reps clear their inbox. By the time the spreadsheet is imported, the 48-hour window has closed.

"Great to meet you at the show." If a message could go to every scan unchanged, it is a brochure.

Counting scans instead of meetings. Measure meetings held and revenue from the show list at 90 and 180 days. A scan is where the work starts.

Frequently asked questions

How soon should you follow up after a trade show? Hot leads within 48 hours, by the rep who met them. Everyone else who fits your market within the first week, while the show is still a shared memory.

Should trade show follow-up go by email or LinkedIn? Start on LinkedIn from a person's own account and use email as the second channel. A face from the booth is easier to place than a company name, and 40% of our signal-picked invitations from June to September 2026 were accepted without a note.

What should a trade show follow-up message say? One specific thing from the show, such as a question they asked or a talk they attended, followed by one short question. Leave the brochure out.

How long should you keep following up after a trade show? About 90 days of active follow-up, then keep the list on watch until the next show. After the first two weeks, write only when something changes on their side, such as a new role or a new hire.

How do you measure trade show ROI? Count meetings held and revenue from the show list at 90 and 180 days. In AUMA's survey of 404 German exhibitors, only about 17% named revenue or orders as their measure, while about 49% judged a show by its leads.