Top 100 defense conferences in 2026

This research identifies the 100 most influential defense conferences, ranked by decision-maker density, attendees, and online mentions. Whether you are looking for procurement opportunities or the latest trends, this is your definitive events planning roadmap.

Methodology

Phase 1: Discovery

We crawled the internet with our proprietary algorithm to aggregate every global industry event.

Phase 2: Filtering

We filtered the 2,811 conferences specifically for high-intent buyer types and relevance.

Phase 3: Sorting

We sorted by attendee count + estimated number of vendors to prioritize networking density.

The top 10 conferences

1. FDIC International

📅 Apr 20, 2026 · 📍 Indianapolis, IN · 👥 37,081

FDIC International is the largest conference and trade show for the fire and rescue industry in North America. It is the premier training event for fire and rescue professionals, offering extensive hands-on training (H.O.T.) evolutions, in-depth workshops, and comprehensive classroom sessions. The event brings together industry leaders for peer-to-peer knowledge exchange, innovation, and collaboration across various specialized summits, such as the Metro Fire Officers Summit, EMS Innovation Summit, NextGen Fire Rescue Tech Summit, Industrial Fire Summit, Aircraft Fire and Rescue Summit, and the Women in Fire Conference.

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2. FDIC International 2026

📅 Apr 20, 2026 · 📍 Indianapolis, IN · 👥 37,000

The FDIC International 2026 is North America's largest conference and trade show for the fire and rescue industry. Held from April 20-25, 2026, in Indianapolis, Indiana, it brings together fire and EMS professionals for extensive hands-on training (H.O.T.) evolutions, workshops, and classroom sessions. The event will commemorate the 25th anniversary of 9/11 with special remembrance events and tributes. Highlights include an expanded EMS lineup with the EMS Innovation Summit and 'The Sim Yard' for immersive simulation training, a Mid-Rise/High-Rise Symposium focusing on complex building fire strategies, and High Intensity Training Sessions (HITS). Attendees can expect to learn the latest tactics, techniques, and technologies, explore products from over 800 exhibitors, and network with peers. The conference aims to elevate skills, strengthen impact, and provide professional development for responders at all career stages.

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3. SOF Week 2026

📅 May 18, 2026 · 📍 Tampa, FL · 👥 23,000

Special Operations Forces (SOF) Week is an annual convention for the entire international SOF community. Jointly sponsored by USSOCOM and the Global SOF Foundation, it serves as a global gathering for special operators, industry leaders, and strategic partners. The event focuses on fostering collaboration, innovation, and excellence, showcasing cutting-edge capabilities and strategies in modern special operations. Attendees can expect educational sessions, demonstrations of land, air, maritime, and technological solutions, interactions with exhibitors, and extensive networking opportunities. The conference addresses challenges, initiatives, and the way forward in delivering advanced capabilities to SOF operators, emphasizing the importance of people, technology, and organizational transformation to meet current and future defense challenges.

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4. 2026 Air, Space & Cyber Conference

📅 Sep 14, 2026 · 📍 National Harbor, MD · 👥 22,000

AFA's Air, Space & Cyber Conference provides first-class professional military development, facilitates sharing of emerging requirements and technologies, and helps fuel connections that advance the cause of air and space power.

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5. MRO Americas 2026: Celebrating 30 Years of Aviation Excellence

📅 Apr 21, 2026 · 📍 Orlando, FL · 👥 17,000

MRO Americas celebrates three decades of shaping the aviation maintenance industry, offering unprecedented opportunities to connect with decision-makers, discover groundbreaking technologies, and gain exclusive insights. This event delivers unmatched networking, industry-leading content with tracks on consolidation, AI innovation, and workforce development, business development acceleration, technology showcases, and executive access to C-suite leaders from airlines, OEMs, and service providers. Key focus areas include the impact of industry consolidation on MRO strategies, recruitment challenges, securing capacity, practical AI applications in maintenance, and strategic M&A and investment opportunities. The conference is co-located with the Military Aviation Logistics and Maintenance Symposium (MALMS) and features a Military Pavilion.

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6. AI+ Expo

📅 May 07, 2026 · 📍 Washington, DC · 👥 15,000

The AI+ Expo is an exclusive, highly collaborative event where members of government, academia, and industry convene in Washington, D.C. to share education and critical insights on AI and emerging technologies. The three-day event focuses on establishing strategic partnerships, immersing attendees in cutting-edge technology, and fostering conversations shaping national security and global competitiveness, with a shared vision to solidify the leadership of the United States and its allies and partners in critical, emerging technologies.

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7. Space Symposium

📅 Apr 13, 2026 · 📍 Colorado Springs, CO · 👥 12,000

Space Symposium is the premier event uniting global space professionals from all sectors, providing a unique platform to explore critical space issues, foster dialogue, and drive innovation across the space industry. For over 40 years, it has gathered military, industry, commercial, and government attendees, bringing together space leaders from around the world to discuss, address, and plan for the future of space. It is renowned as the premier U.S. space policy and program forum and the must-attend event for information and interaction among all sectors of space. The 41st Space Symposium will feature hundreds of exhibitors and speakers, attracting an estimated 12,000 top space professionals, business leaders, and decision-makers from over 60 countries. The event includes in-person and virtual attendance options, offering opportunities for networking, business, and exploring the latest in space activities and innovations, held at The Broadmoor and Cheyenne Mountain Resort in Colorado Springs, Colorado.

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8. AI Week 2026

📅 Apr 13, 2026 · 📍 Washington, D.C., DC · 👥 10,000

AI Week is the nation's only week-long tech festival dedicated to artificial intelligence and its potential to transform the world we live in. During AI Week 2026, thousands of C-suite leaders from the government, tech and education communities across the U.S. will gather online and in person to participate in hundreds of community events, interactive sessions, lightning talks, networking opportunities and more for an exclusive look at the latest in the AI space. The event focuses on accelerating AI innovation and mitigating its risks, bringing together AI decision-makers and influencers to chart a course forward as the leader in the responsible development of artificial intelligence.

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9. 2026 National TSA Conference

📅 Jun 22, 2026 · 📍 National Harbor, MD · 👥 10,000

The 2026 National TSA Conference, themed "Unity Through Community", will be held at the Gaylord National Resort & Convention Center in National Harbor, Maryland, near Washington, D.C. This world-class event offers middle and high school Technology Student Association (TSA) members and educators leadership opportunities, participation in competitive events, and networking with peers. Attendees can expect a focus on skill development in science, technology, engineering, and mathematics (STEM) through various activities including the National TEAMS Competitions.

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10. RAPID + TCT 2026

📅 Apr 13, 2026 · 📍 Boston, MA · 👥 9,500

North America's largest additive manufacturing and industrial 3D printing event, RAPID + TCT, is scheduled for April 13-16, 2026, in Boston. The event features an expansive show floor with hands-on exhibits from over 400 leading product and service providers in 3D printing technology. Attendees can benefit from the Executive Perspectives Keynote Series, extensive networking events, and a four-day conference program offering over 160 technical presentations across nine tracks, designed to provide impactful industrial 3D printing insights. The event is co-located with AeroDef Manufacturing, highlighting applications in aerospace and defense.

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Full list of conferences