Startup events in March 2027 – Calendar

4YFN 2027 runs alongside MWC Barcelona at Fira Gran Via, connecting founders, investors, and corporates focused on turning early-stage innovation into real business outcomes. The event draws thousands of startups and investors from across Europe and beyond, with structured matchmaking, a pitch competition, and the 4YFN Awards. It operates as an independent but deeply integrated event within the broader MWC ecosystem.

MWC27 Barcelona is the world's largest connectivity and mobile technology event, bringing together over 100,000 decision-makers, 2,900+ exhibitors, and representatives from 207 countries at Fira Gran Via. The 2027 edition continues the event's focus on 5G, AI, satellite connectivity, and adjacent industries, with a full ministerial programme running March 1-3. GSMA announced the 2027 dates immediately after closing MWC26.

The UK's space-industry expo and conference at ExCeL London, connecting space companies, defence, and the broader supply chain. For spacetech and deeptech founders it is the main UK venue to meet agencies, primes, and investors active in the space economy.

UN:BLOCK is a two-day blockchain, fintech and AI conference held in Riga, drawing around 3,000 attendees from 50+ countries and 700+ companies. Day one focuses on blockchain, digital assets and AI agents, while day two covers fintech, payments, banking regulation and financial infrastructure. The event is backed by the Investment and Development Agency of Latvia (LIAA).

One of France's largest community developer conferences, two days of technical talks and workshops at the H Arena. Strong for developers and dev-tooling founders wanting depth and access to a large French developer audience.