Professional Trade Shows in Paris in December 2026: The Month's B2B Calendar

December 2026 does not fit under one roof. Five trade shows follow one another at Paris Expo Porte de Versailles, ranging from digital payments to commercial real estate, while a leading medical congress fills the Palais des Congrès at Porte Maillot. Two hubs, often the same week.

The calendar is compressed: most of the month's B2B events fall between 1 and 5 December, just as Paris enters the festive season. Two sources of demand stack up on well located hotels. For a business trip, it pays to read the agenda early and lock in your base before availability tightens.

TRUSTECH: 1 to 3 December, digital payment and identity

The TRUSTECH show opens the month around trust technologies: digital payment, secure identification, fintech and cybersecurity. Access is restricted to trade visitors, badge required, with no opening to the general public. The format runs three days: it is worth preparing your badge and checking the conference programme before arriving rather than deciding on site.

Supply Chain Event and Step by Pollutec: 1 and 2 December, logistics and the environment

On 1 and 2 December, two trade shows share Pavilion 1. Supply Chain Event brings together supply chain and logistics professions; Step by Pollutec, co-located, covers industrial ecology and the environment. Both are restricted to trade visitors with a badge. Overlapping for two days at the same venue as TRUSTECH, they make the very start of the month particularly busy at Porte de Versailles for anyone stringing several meetings together.

Journées Dermatologiques de Paris: 1 to 5 December, Porte Maillot

The other major professional event of the month moves to a different part of the city. The Journées Dermatologiques de Paris, the annual congress of the Société Française de Dermatologie (French Society of Dermatology), runs from 1 to 5 December at the Palais des Congrès de Paris, 2 place de la Porte Maillot (75017), with a Forum for general practitioners on Tuesday 1 December followed by the main congress from 2 to 5 December. The benchmark event for French speaking dermatology, it remains restricted to healthcare professionals: registration and badge required, paid for most registrations, with the general practitioners' Forum registered separately.

Educ@tech Expo: 2 to 4 December, digital education

From 2 to 4 December, Educ@tech Expo brings together education professionals around digital learning. The visitor badge is free but online registration is required and should be completed before travelling. Hours vary by day: 2 December from 9am to 9pm (with an After Work from 6pm to 9pm), 3 December from 9am to 6pm and 4 December from 9am to 5pm.

SIMI: 8 to 10 December, commercial real estate

The second week changes pace with SIMI, the investment and commercial real estate show, from 8 to 10 December. Investment, development, management: it targets industry professionals, badge required, via online visitor pre-registration. The exact hours for the 2026 edition had not been officially announced at the time of writing.

Two venues, badges to order before you leave

Five of the month's six events take place at Paris Expo Porte de Versailles, 2 place de la Porte de Versailles (75015); the Journées Dermatologiques, meanwhile, at the Palais des Congrès, 2 place de la Porte Maillot (75017). None is open to the general public. Educ@tech Expo confirms its badge is free on registration; for TRUSTECH, Supply Chain Event and Step by Pollutec, the badge fee was not confirmed and should be checked with each organiser; the dermatology congress, for its part, is open only to registered healthcare professionals, with paid registration for most profiles. The rule of thumb is the same everywhere: register online before travelling, since entry on site is not guaranteed without a badge prepared in advance.

Porte de Versailles, Porte Maillot: getting there from the 9th arrondissement

From 41 rue de Clichy, both destinations start from the same station. At Place de Clichy (lines 2 and 13), take line 13 to Montparnasse-Bienvenüe, then line 12 to Porte de Versailles, its terminus, right by the exhibition park: a single change, allow about 30 to 35 minutes depending on the time of day. For the Palais des Congrès, it is shorter: line 2 to Charles de Gaulle-Étoile, then line 1 to Porte Maillot, also a single change, about 20 minutes. A delegate heading to the Journées Dermatologiques therefore reaches the congress noticeably faster from the 9th than a trade show visitor reaches Porte de Versailles. At peak opening and closing times (around 8:30am to 9:30am in the morning, 5:30pm to 7pm in the evening), allow extra time or switch to a taxi or ride-hailing service, whose useful apps you will find in our guide.

Where to stay as December fills up

This is the point not to underestimate this month: the first week of December brings TRUSTECH, Supply Chain Event, Step by Pollutec, Educ@tech Expo and the Journées Dermatologiques congress together on the same days, at two points across the city, right when Christmas markets and year end stays are filling Paris. Demand rises on both fronts at once, and availability and rates feel it. Booking early makes the difference. Staying in the 9th means you do not have to pick your neighbourhood based on a single venue: from the Hôtel R de Paris, Porte Maillot is one change away and Porte de Versailles another, Gare Saint-Lazare is a 7 minute walk and boulevard Haussmann a quarter of an hour away for a client meeting or an evening out. Our air conditioned rooms and our practical information help you plan a trip without surprises.

This agenda continues November's: the same month by month reading, to spot at a glance the events that justify a night or a week in Paris. In December, the right strategy comes down to two moves: order your badges ahead of time and book early.