A scanned badge does not pay a bill. A photo with an investor does not finance a factory. Yet after VivaTech, CES or a specialist gathering such as RAISE Summit, the assessment often begins with the same trophies: visitors met, business cards collected, LinkedIn posts published. In September 2026, the right question remains less glamorous: what would the company have earned without the trip, and how much did it spend to do better?
Three stages, different promises
CES, in Las Vegas, has established itself as an international showcase for electronics, mobility and enterprise technology. VivaTech, in Paris, brings together startups, major corporations, investors and public-sector decision-makers. RAISE Summit, which held its first Paris edition in 2024, reflects the growing specialization of events focused on artificial intelligence. Their common denominator: bringing together people who are difficult to gather elsewhere.
But their returns are not interchangeable. A manufacturer may seek distributors at CES, a startup may target business-unit leaders at VivaTech, and an AI company may look for technical or financial partners at a specialist event. The right trade show is not necessarily the most prominent: it is the one attended by people who can move a decision forward.
Editions held through 2024 had already demonstrated AI’s growing presence in demonstrations and presentations. Looking ahead to September 2026, the analysis is this: if that concentration continues, the challenge will be less about meeting AI players than about distinguishing genuine buyers from suppliers prospecting among themselves. This is not an assessment of the 2026 editions.
The bill the booth does not reveal
The first pitfall is to equate the investment with the price of floor space. The full cost includes external expenditure, staff time and, separately, opportunity cost. The plane ticket is visible; the days during which a sales representative stops working on their usual accounts are much less so.
- Presence: registration, floor space, booth setup, furniture, connectivity, insurance and technical services.
- Travel: transport, accommodation, meals, freight, customs formalities and unexpected expenses.
- Activation: demonstrations, content, invitations, translation, communications and any reception.
- Staff time: preparation, attendance, travel and post-event follow-up.
Take an entirely hypothetical example: €8,000 for the booth, €6,000 for travel, €4,000 for demonstrations and communications, €9,000 in fully loaded staff costs, then €3,000 for follow-up. Total: €30,000. This is neither an average price nor a quote for any of the trade shows mentioned, but a framework each company can fill in.
Staff time should be valued at the daily cost to the employer, not at the rate billed to clients. Any sales lost through lack of availability deserve a separate scenario: automatically adding them to fully loaded staff costs could double-count part of the sacrifice. Subsidies and shared booths reduce net expenditure without eliminating internal work.
Define a conversion before you leave
“Networking” describes an activity, not an outcome. Before booking, choose a primary objective: entering a market, signing paid pilots, recruiting a distributor or initiating a funding round. Each objective requires its own chain of evidence. Combining all results into a single score makes the assessment flattering but unusable.
For sales, that chain can be simple: meeting held, need confirmed, decision-maker identified, next step scheduled, proposal sent, contract signed, payment collected. A scanned badge remains a contact. A sales opportunity requires, at a minimum, a problem to solve, a fit with the offering and a credible purchasing process.
The crucial work therefore begins before the doors open. Prearranged meetings help establish whether target accounts will actually attend. If priority contacts decline or are not coming, it is better to reconsider the format: attend as a visitor rather than an exhibitor, send a smaller delegation or join a side event. A booth is not a prerequisite for accessing an ecosystem.
Measure margin, not just revenue
The central calculation comes down to one formula: ROI = (incremental contribution margin attributable to the trade show − full cost) / full cost. Contribution margin here means revenue minus the costs required to deliver the contracts concerned. The same definition must be maintained from one assessment to the next.
In our example, a €50,000 contract generating a 60% contribution margin delivers €30,000. It therefore only just covers participation, provided it is entirely incremental and attributable to the trade show. If it would have been signed anyway, crediting it entirely to the event would be misleading.
This is the difficult part: attribution. In enterprise software or industry, a sale may result from several months of demonstrations, referrals and negotiations. Sometimes the trade show will have created the relationship; sometimes it will merely have accelerated the signing. Distinguishing between contracts originated and contracts influenced avoids turning every handshake into new revenue.
In the absence of a controlled experiment, companies can compare accounts reached at the event with similar accounts they did not meet, review sales histories and document the event’s precise role. This estimate will remain imperfect. Presenting a cautious range is better than an arbitrary attribution percentage. Opportunity values, even when weighted by probability, remain forecasts, not receipts.
Funding and visibility: different evidence
A funding round is not revenue: it is an injection of capital, generally accompanied by dilution and investor rights. Dividing the amount raised by the cost of the trade show therefore does not measure an economic return comparable to that of a contract.
Useful tracking focuses on meetings with relevant investors, second meetings, document requests, due diligence initiated and offers received. It is then necessary to verify whether the contact genuinely originated at the trade show. An investor already involved in the funding process does not become an event-generated lead simply because they spoke with the founders on site.
For brand awareness, it is better to look at coverage reaching the intended audiences, qualified inbound inquiries and visits from target accounts than to calculate an artificial advertising-value equivalent. Visibility can have strategic value without immediately assigning it an invented monetary value.
The real trade show begins when you return
Someone must take responsibility for assigning each contact, recording the next action and organizing follow-ups within the first few days. A review after thirty days assesses the quality of follow-up; at three and six months, it examines sales progress. For long industrial sales cycles, monitoring may extend beyond a year. Cash-flow requirements also mean tracking payments received, not just signatures.
What next? As technology trade shows become more specialized, their value could shift from spectacle to the quality of carefully planned meetings. When deciding whether to attend again, compare the cost with that of a targeted campaign, a sales trip or a customer event. The profitable trade show is not the one that leaves you most enthusiastic, but the one whose impact you can explain with evidence.