--- title: "DSEI London 2027 Dates and Visitor Profile | DataOrigin" description: "DSEI London 2027 takes place from September 7 to 10, 2027 in London. Learn about the attendee profile, tickets, and how to prepare your B2B prospecting." canonical: https://dataorigin.es/en/blog/dsei-london-london-2027/ lang: en site: https://dataorigin.es llms: https://dataorigin.es/llms.txt --- ![DSEI London 2027](/images/blog_events/dsei-london-london.webp) # DSEI London 2027 [London](https://dataorigin.es/en/trade-shows/london/), [United Kingdom](https://dataorigin.es/en/trade-shows-by-country/united-kingdom/) | From September 7 to 10, 2027 DSEI London 2027 takes place from September 7 to 10, 2027 in London. Learn about the attendee profile, tickets, and how to prepare your B2B prospecting. [Web](https://www.dsei.co.uk/) Security & Defense Joaquín Montesinos • Published October 26, 2026 The defence and security sector concentrates major procurement cycles in early autumn in London. DSEI London 2027 takes place from 7 to 10 September 2027 in London and brings together manufacturers, integrators and buyers across air, land and maritime domains. This article provides a compact guide to who attends, the official scale of the event and actionable outreach tactics. ## Dates and event format at DSEI London 2027 The four-day event runs from 7 to 10 September. The format mixes a large commercial exhibition with designated areas for delegation meetings and technical showcases. Check the official site for detailed daily schedules and admission procedures. ## Exhibitor and company profile Exhibitors typically include suppliers of aerospace and naval platforms, weapons and sensors, systems integrators and cybersecurity specialists. Technology vendors and testing houses are prominent. The exhibition is geared to technical demonstrations alongside scheduled B2B meetings. ## Key figures - Registered attendees: 45000 - Exhibitors: 1700 These figures indicate the scale and the volume of potential commercial contacts during the four days. ## Preparing commercial outreach Set daily objectives by application area and procurement capacity. For DSEI London 2027, prioritize target organisations and arrange meetings in advance. Prepare a concise technical pack highlighting integrations and certifications. Reserve demonstration slots and plan follow-up sequences with clear timelines. For small sales teams, design a daily route with a ranked list of target stands to convert pass-by interest into scheduled conversations. Use short technical fact sheets and links to demo videos that can be sent immediately after each meeting to maintain momentum. ## Practical networking on site Networking occurs both on the stands and in delegation zones. Book meetings ahead and use booth demonstrations to open technical dialogue. If your product involves system integration, bring short case studies and performance metrics for quick evaluation by procurement officers. ## Closing note and next steps DSEI London 2027 gathers a broad sample of the defence supply chain and the official numbers help calibrate event intensity. Focus on converting stand visits into technical follow-ups and set a post-event pipeline with deadlines. Full details on registration, delegate services and schedules are available at the official website [https://www.dsei.co.uk/](https://www.dsei.co.uk/). ## Looking for the DSEI London 2027 exhibitor list? Sign up for free on DataOrigin to check this trade show's companies as soon as they are available and explore hundreds of other shows. [See the full list](https://dataorigin.es/app/?lang=en) [See how sales teams use DataOrigin](https://dataorigin.es/en/solutions/sales-teams/) ## Capture the contacts at this trade show Scan badges and business cards with the free DataOrigin Lead Scanner app. Contacts stay only on your phone. [Get it on Google Play](https://play.google.com/store/apps/details?id=es.dataorigin.leadscanner&referrer=utm_source%3Ddataorigin_web%26utm_medium%3Dfair_page%26utm_campaign%3Dlead_scanner%26utm_content%3Ddsei-london-london-2027) [More about Lead Scanner](https://dataorigin.es/en/tools/trade-show-lead-scanner/) ## Frequently asked questions When is DSEI London 2027? DSEI London 2027 takes place from September 7 to 10, 2027 in London. How can I get the DSEI London 2027 exhibitor list? Sign up for free on DataOrigin to check DSEI London 2027's companies as soon as they are available and explore hundreds of other trade shows. ## Something else that might interest you. 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At Data Origin, we help exhibitors and organizers turn events into data‑rich experiences that spark real business outcomes. ### Want to make your next trade show truly stand out? [Let's connect](https://dataorigin.es/en/contact-us/) Data Origin is an independent platform and is not affiliated with, endorsed by, sponsored by, or officially connected with DSEI London 2027 or its organizer. All event names and trademarks belong to their respective owners and are used for identification purposes only. [See our Terms and Conditions.](https://dataorigin.es/en/terms/)