The stand has been dismantled, sales teams are back to their schedules and photos are still circulating on LinkedIn. One less photogenic question remains: what did the trade show actually deliver? In September 2026, the aftermath of VivaTech and the RAISE Summit is, above all, an opportunity to review the numbers. Without making assumptions about the results of their 2026 editions, one observation stands out: between visibility, qualified meetings and signed contracts, activity is still too often confused with value creation.
Two stages, several commercial promises
VivaTech has established itself in Paris as a major meeting point for startups, international corporations, investors and public-sector players. The RAISE Summit has positioned itself around artificial intelligence, with an audience more closely focused on that ecosystem. This difference in positioning matters: a general-interest event can support a brand awareness or partnership strategy; a specialist gathering can facilitate in-depth discussions about a technical need. Neither format, on its own, guarantees a better return.
The rise of generative AI since 2022 has reinforced a phenomenon already familiar at technology trade shows: plenty of demonstrations and promises, but varying purchasing timelines. An innovation director may appreciate a solution without having the budget to acquire it. A business manager may want to test a product while still requiring IT approval. Interest expressed at a stand is therefore not yet actionable buying intent.
Start by counting what the trade show really costs
The first pitfall lies in the denominator. Comparing sales against the price of the stand alone produces a flattering but incomplete return. Stand fit-out, tickets, travel, accommodation, technical services, communications and any evening events organised around the show must all be added. Spending spread across marketing, senior management and sales teams needs to be brought together in a single budget.
The time committed must also be valued: preparing demonstrations, scheduling meetings, attending the event and then following up. For a startup, three days at a trade show can amount to a week of work diverted from product development or routine prospecting. This opportunity cost deserves a separate estimate, without being automatically added to salaries already accounted for. The point is to identify which alternative activity the company gave up.
Visibility, meetings, contracts: three distinct levels
Visibility creates an opportunity, not revenue
An interview, a demonstration that attracts attention or a speaking engagement can help build a brand. But the raw number of impressions reveals neither who saw the message nor what they took away from it. It is better to examine coverage among target audiences, relevant website visits, branded searches and inbound enquiries. An increase during the show remains a signal: on its own, it does not prove a causal effect.
A qualified meeting must lead to a next step
Scanning a badge identifies a contact, not an opportunity. Rigorous qualification documents the problem to be solved, the fit with the offering, the contact’s role in the decision and a plausible timeframe. The best indicator is often something concrete: a meeting with the budget owner, access to test data or a technical workshop already scheduled. Without an agreed next step, the conversation remains exploratory.
A signed contract cannot be attributed entirely to the trade show
A customer met in Paris may have known the company for months. Did the trade show create the relationship, revive a stalled discussion or simply provide the venue for the signing? These situations do not carry the same value. In enterprise software, where several decision-makers are involved, the sales journey frequently extends beyond the event. Attributing all revenue to the last meeting effectively erases the work that came before it.
Calculate a return without turning hopes into revenue
To measure the commercial return, a useful formula is: ROI = (contribution margin attributable to the trade show − total trade show cost) / total trade show cost. Here, contribution margin means revenue minus the variable costs required to fulfil the contracts concerned. It avoids treating a profitable sale in the same way as a project requiring extensive services. The chosen timeframe must be explicit.
Imagine, purely for illustration, participation costing €40,000. Over twelve months, contracts attributable to the event generate €60,000 in contribution margin: ROI then reaches 50%. If the €60,000 refers only to sales proposals under discussion, this calculation is not valid. What exists is a pipeline of opportunities, not a realised return.
That pipeline can nevertheless inform decisions. Opportunities can be weighted using historically observed conversion rates at each stage, and their expected margin can then be estimated. The result must remain labelled as a forecast. A young company without reliable historical data would do better to present several scenarios rather than an artificially precise probability. Future revenue from a multiyear subscription calls for the same caution.
Organise follow-up before opening the stand
The assessment begins before departure. In the CRM, an event record should distinguish newly acquired contacts from accounts already being pursued. Every meeting is assigned an owner, a qualification status and a next action. A snapshot of the pipeline before the trade show then makes it possible to identify newly created opportunities and accelerated deals, without reconstructing the story after a contract is signed.
- At thirty days: check follow-ups, second meetings and genuinely qualified contacts.
- At ninety days: track projects under way, pilots and documented dropouts.
- At six or twelve months: measure contracts, margin and time to close, according to the usual sales cycle.
Comparing these results with those of other channels makes the assessment useful. How much does a qualified opportunity from the trade show cost compared with one from a targeted campaign or a client dinner? Do invited accounts progress further than comparable accounts that did not attend? These comparisons do not always establish causality, since participants are often already more interested. Nevertheless, they are worth more than a photo album as a budget justification.
Startups and large corporations: different goals, the same discipline
A startup should generally focus on a small number of goals: meeting buyers, finding a distributor or opening a dialogue with investors. Fundraising, however, is not recorded as revenue. A large corporation may be looking for suppliers, recruiting or familiarising its teams with new technologies. These benefits deserve their own indicators: trials implemented, hires completed and supplier selection times reduced. Converting them arbitrarily into euros would weaken the assessment.
What next? For future trade shows, the most credible approach is to give less space to eye-catching metrics and more to tracking decisions. AI tools could make meeting summaries and follow-ups easier, provided data protection rules are respected; they will replace neither qualification nor rigorous attribution. The best trade show will not necessarily be the most visible, but the one that moves the right opportunities forward at a justifiable cost.