Trade show follow-up: turning business cards into deals

Trade show follow-up is the work of turning a stack of business cards and scribbled notes into something closer to deal flow, and most of it happens, or fails to happen, in the first week after the show closes. The contacts that matter get the same templated message as the ones that do not, timing slips while the show's momentum is still fresh, and nobody checks what the law in your jurisdiction actually allows you to send. None of that is a lead generation problem. It is a follow-through problem, and it is fixable with an afternoon of sorting and a short checklist.

This matters whether you went yourself or sent someone in your place. If a representative attended on your behalf, our guide to hiring someone to attend a trade show for you sets out how to brief them before the trip. This piece picks up from the moment the contacts, notes and photographs land back on your desk.

Why most follow-up underperforms

The contacts collected at a trade show are not a single pool. Someone who spent twenty minutes discussing a specific need is not the same as someone who took a leaflet in passing, but a show floor rarely gives you the time to record that difference properly. Most booth conversations end with a scanned badge or a swapped card and little else, which means the sorting has to happen afterwards, from memory and whatever notes were taken at the time.

The usual failure mode is treating every contact the same way: one generic email, sent days later than planned, to everyone who handed over a card. The contact who was ready to talk gets lost in the same batch as the one who was only being polite. Fixing this is less about writing a better template and more about doing the sorting before any message goes out.

Triage before you write anything

Go back to whatever decision criteria you set before the show, the same ones a hired representative would have been briefed against if you sent one. Sort every contact into one of three groups before drafting a single message.

• Ready now. A specific need was discussed, a next step was already agreed, or the contact asked you to follow up. These get a personal message, referencing the actual conversation, as soon as you can write one properly. A phone call or a direct message is often a better first move than an email for this group.
• Worth pursuing. General interest was clear but nothing concrete was agreed. These can wait a few more days without real cost, and a shorter, still-personalised message is usually enough.
• Low priority. A card was taken, or a badge scanned, with no real conversation behind it. These either go into a general update list, if you plan to keep one, or get left alone. Sending the same message to this group as to the first group is the single most common way a follow-up plan collapses under its own volume.

Writing this sorting rule down before the show, as part of the brief, is what separates a useful trip from one that produces a pile of cards nobody gets to in time.

Timing matters, but less than the sorting does

The common advice across sales and exhibition sources is to act within days rather than weeks, because the conversation is still fresh in the other person's mind and because a competitor working the same show is doing the same thing. Treat this as a reasonable rule of thumb rather than a rule: a well-sorted follow-up sent a little later beats a rushed, generic one sent the morning after.

In practice this usually means working the "ready now" group within the first few days while the detail of the conversation is still accurate, and letting the other two groups wait without feeling pressure to clear the whole stack at once. A contact who was genuinely interested will not evaporate if your message to them is the one that was actually worth sending.

What you are allowed to send

This is the part most trade show advice skips, and it is worth getting right before you send anything, because the person on the other end of a scanned badge did not necessarily agree to be emailed.

In the United Kingdom, the Privacy and Electronic Communications Regulations (PECR) govern marketing by email, and the Information Commissioner's Office guidance draws a clear line between individuals and corporate bodies. You must not send marketing emails to an individual, which includes sole traders and some partnerships, without specific consent, unless the "soft opt-in" exemption applies. That exemption only covers existing customers who have already bought or negotiated to buy a similar product from you, were given a clear opt-out when their details were first collected, and have been offered that opt-out in every message since. A contact you only just met on a stand does not qualify. Emailing a company, a Scottish partnership or an LLP as a corporate body sits under separate rules and does not need the same individual consent, though the ICO recommends keeping a do-not-email list of anyone who objects. Note that this guidance is under review following the Data (Use and Access) Act 2025, so check the current page before relying on it for anything beyond a single follow-up.

In the United States, the FTC's CAN-SPAM Act compliance guide applies to every commercial email, with no exemption for business-to-business messages. A follow-up that promotes what you sell has to carry accurate header information, a subject line that reflects the content, a clear statement that it is an advertisement, a valid physical postal address, and a working way to opt out. Opt-out requests have to be honoured within ten business days, and the mechanism for submitting one has to keep working for at least thirty days after the message is sent. The maximum penalty, as stated on the FTC's own page, is $53,088 per separate email in violation, which is a meaningful number when a follow-up list runs into the hundreds.

Neither of these rules stops you from following up. They shape how: a personal, one-to-one message referencing an actual conversation sits more comfortably with both regimes than a bulk send to everyone who walked past the stand, and it is also the kind of message more likely to get a reply.

A worked illustration

The table below is an illustration built for this article, covering an imagined batch of forty contacts from a single show. The numbers are not from any real event and should not be treated as a typical split.

Even in this small illustration, the six contacts in the first row are doing most of the work. A plan that spends equal effort across all forty, or clears the "low priority" row first because it is the easiest to process, is solving the wrong problem.

What to do next

Pull the contacts together while the show is still recent, sort them against the criteria you set before you went, and work the "ready now" group first and properly rather than everyone at once and thinly. If any of those contacts turn out to be a supplier worth a closer look, a company worth investigating as an acquisition, or a founder raising money, treat the follow-up message as the start of a proper process rather than the end of one. Our due diligence checklist for a first acquisition and our piece on what an angel investor actually does both pick up from exactly this point. Browsing current deal flow and discussing sourcing with others in the community is a reasonable way to see whether a contact from one show fits a pattern you are already working on, or whether you are reading more into a single conversation than it deserves. For a bigger trip, with a fuller brief and someone to run it, the missions page sets out how that is typically scoped and priced.

Need someone on the ground? Hadri takes on missions: meetings, trade shows, conferences and site visits in any city, quoted per trip. Request a quote.

Common questions

How soon after a trade show should I follow up? Within days rather than weeks is the general guidance across sales and exhibition sources, mainly because the conversation is still fresh for both sides and a competitor at the same show is likely doing the same thing. Treat it as a reasonable rule of thumb: a properly sorted message sent a little later is better than a generic one rushed out the next morning.

Can I just email everyone who gave me a business card? Not automatically, and the answer depends on your jurisdiction. In the UK, emailing an individual without consent or a qualifying soft opt-in is a breach of PECR; emailing a company as a corporate body is treated differently. In the US, CAN-SPAM applies to the message regardless of whether the recipient is a business, so it still needs accurate headers, an ad disclosure, a postal address and a working opt-out.

Does a scanned badge count as consent to be emailed? Generally no, on its own. Scanning a badge or collecting a card is more about data capture than marketing consent. In the UK, a brand-new contact from a show will rarely meet the soft opt-in conditions, since those require an existing buying relationship. Check current guidance before treating a scan as permission to add someone to a marketing list.

What if I sent someone else to the show instead of going myself? The same sorting and timing rules apply, but they depend on getting the notes and context back from your representative quickly and in enough detail to act on. This is one of the reasons a written brief with a reporting deadline matters before the trip, not just during it.

Is a phone call better than an email for the most promising contacts? For contacts in the "ready now" group, a call or a direct message often moves things along faster than an email sitting in an inbox, and it avoids some of the email-specific rules altogether. For larger batches of lower-priority contacts, email remains the more practical option, provided it meets the rules that apply to it.