Defense and Government Trade Shows 2026

Quick answer: The five biggest defense and government trade shows in 2026 are AUSA, Sea-Air-Space, Eurosatory, SOF Week, and the GEOINT Symposium. WhoGoes surfaces verified attendees for each from public LinkedIn posts, giving you names, titles, companies, and proof of attendance. Preview contacts free at /events.

What Are Defense and Government Trade Shows?

A defense trade show is an industry event where military buyers, government procurement officials, and defense technology vendors meet to evaluate platforms, negotiate contracts, and build partnerships. These aren't your typical SaaS conferences.

The buying cycle in defense is long. Really long. A contract award can take 18 months or more from first conversation to signature. But those first conversations? They happen at events. A handshake with a program manager at AUSA or a 15-minute demo to a SOCOM acquisitions lead at SOF Week can seed a pipeline that closes two fiscal years later.

I've talked to BDRs at defense tech startups who say the same thing: "We got more warm intros in three days at Sea-Air-Space than in six months of cold email." That tracks. When you're in a room with 16,000 people who all have security clearances and purchasing authority, the math is different.

The challenge is figuring out who's actually going. Organizers rarely share attendee lists, and buying one from a third-party broker is a gamble at best. The complete guide to sourcing a trade show attendee list covers every method, from LinkedIn scraping to verified data platforms.

TL;DR

• Five major defense and government events in 2026 collectively draw 120,000+ professionals, most with procurement authority or influence over contract decisions
• AUSA is the largest (44,000+ attendees), but Sea-Air-Space, Eurosatory, SOF Week, and GEOINT each attract distinct buyer personas
• Defense procurement cycles are slow, which makes early relationship-building at these events critical for pipeline
• Pre-show outreach with verified attendee data is how you turn event attendance into booked meetings, not badge scans
• LinkedIn proof of attendance is the most reliable signal that someone is actually going (not just registered)

2026 Defense and Government Event Calendar

Sea-Air-Space 2026

Powered by the Navy League of the United States, Sea-Air-Space is the premier maritime defense exposition in the US. The 2026 edition runs April 19-22 at the Gaylord National Resort in National Harbor, Maryland.

It's huge. Expect 16,000+ attendees, 430 exhibitors, and delegations from 57 countries gathering at the Gaylord for what is widely regarded as the single most concentrated naval procurement and maritime defense networking week anywhere in the calendar year. The crowd skews toward naval warfare, maritime technology, and undersea systems. If you sell anything related to shipbuilding, naval communications, autonomous maritime vehicles, or port security, this is your event.

One thing that sets Sea-Air-Space apart: the concentration of flag officers and senior DoD officials. Rare access. Not many shows give you that kind of room. Preview attendees who've already posted about going on the Sea-Air-Space 2026 event page.

GEOINT Symposium 2026

The GEOINT Symposium gathers 4,000+ professionals from the geospatial intelligence community. The 2026 edition takes place May 3-6 at the Gaylord Rockies Resort in Aurora, Colorado.

This is a niche crowd. And that's the point. Attendees include NGA leadership, intelligence community analysts, SIGINT/GEOINT program managers, and the private-sector firms building the AI and satellite imagery platforms they buy, which is why per-attendee buyer density here is one of the highest in the entire defense calendar. If your product touches geospatial data, remote sensing, or intelligence analysis, every person at this event is a potential buyer.

The audience is smaller than AUSA or Sea-Air-Space, but the buyer concentration is intense. Tight room. Browse GEOINT Symposium 2026 attendees to see who's confirmed.

SOF Week 2026

SOF Week is the annual convergence for the global special operations community, jointly supported by USSOCOM and the Global SOF Foundation. It runs May 18-21 at the Tampa Convention Center.

Tampa is SOCOM's backyard. Proximity matters. Attendees include SOF operators, acquisitions officers, foreign SOF liaison teams, and the companies building everything from body armor to ISR drones, all converging on a city where the customer literally lives and works five miles down the road. According to DARPA, the agency uses SOF Week to showcase emerging tech directly to operators.

Exhibitors like Lockheed Martin, L3Harris, and dozens of smaller defense tech firms use SOF Week to demo products to the people who actually use them in the field. That's rare.

Eurosatory 2026

Eurosatory is the world's largest land and airland defense exhibition. The 2026 edition runs June 15-19 at Parc des Expositions Paris-Nord Villepinte.

The numbers are wild. The 2026 event lists 43,000+ visitors, 2,000+ exhibitors, 350+ official delegations, and 185,000 sqm of exhibition space spread across multiple halls dedicated to land systems, vehicles, weapons, soldier modernization, and dual-use technologies. For US defense companies looking to expand internationally, or European firms trying to break into allied markets, Eurosatory is the meeting ground.

Themes for 2026 include autonomous systems, electronic warfare, and civil-military crisis response. Big year ahead. If you can't make it to Paris, verified attendee data lets you run outreach to confirmed attendees before, during, or after the show.

AUSA 2026

The AUSA Annual Meeting is the largest land power exposition in North America. Period. The 2026 edition runs October 12-14 at the Walter E. Washington Convention Center in DC.

Over 44,000 attendees. 750+ exhibitors. Representation from 92 countries. AUSA is where the Army's senior leadership, defense industry executives, and government officials converge over three days of panels, demos, and after-hours receptions that quietly drive a meaningful share of next-year procurement conversations. The exhibit floor is dominated by primes (Lockheed, BAE, Raytheon, General Dynamics), but mid-tier and emerging defense tech companies carve out real visibility here too.

For sales teams, the challenge at AUSA is scale. 44,000 people means you can't wing it. You need a target list before you land.

How to Reach Defense and Government Buyers Before the Show

Selling into defense is different. Very different. Slower too. It's more relationship-driven, and bound by procurement rules that most B2B SaaS teams have never encountered before they start chasing federal pipeline at the AUSA expo hall in their first quarter on the beat. A few things to keep in mind.

Titles matter more than company names. A program manager at a systems integrator has budget authority. A junior analyst at the same company doesn't. When you're building your outreach list, filter by title and role, not just by company.

Security clearances limit what people share publicly. Not everyone at these events will post about attending on LinkedIn. The ones who do, though, are usually the vendor-side attendees, exhibitors, and government officials in public-facing roles. Those are exactly the people you want to talk to.

Outreach timing follows the government fiscal year. The US federal fiscal year ends September 30. Teams flush with end-of-year budget start making buying decisions in Q3 (Apr-Jun). That lines up perfectly with Sea-Air-Space, GEOINT, and SOF Week. For AUSA in October, you're catching the start of the new fiscal year, when planning and requirements-gathering kicks off.

Don't lead with product features. Defense buyers care about mission outcomes. Frame your outreach around the problem you solve (faster ISR processing, lighter body armor, better comms in denied environments), not your product's spec sheet.

Getting Your Defense Trade Show Attendee List

Most defense event organizers don't sell their attendee lists. Some don't even share them with sponsors. That leaves sales teams with two options: manually search LinkedIn for hours, or use a platform that's already done the work.

WhoGoes surfaces verified defense trade show attendees from public LinkedIn posts. When someone posts about attending Sea-Air-Space, SOF Week, or any of the 1,200+ events in the platform, WhoGoes captures their name, title, company, email, and the LinkedIn post as proof of attendance. Unlike purchased lists from third-party brokers, every contact comes with LinkedIn proof that they're actually going.

You can preview 5 contacts free for any event. Credits start at $29 for 200 contacts. No subscription. No contract. Credits never expire.

WhoGoes surfaces defense trade show attendees from public LinkedIn posts. You get verified names, emails, companies, and proof of attendance. Preview 5 contacts free, then unlock more starting at $29 for 200 contacts.

Browse the full defense and government event catalog to find your next target show, or check out individual event pages like Sea-Air-Space 2026, SOF Week 2026, or Eurosatory 2026.

For the complete guide to every method of sourcing attendee data, see How to Get a Trade Show Attendee List in 2026.

Related Reading

Want more? Dig in. Each of these companion guides walks through a different layer of the defense and federal outbound playbook, from sourcing the right attendee list to verifying every contact and turning that data into booked meetings on the show floor.

• What Is a Trade Show Attendee List? -- definition, use cases, and what a good list includes
• Trade Show Attendee Data for SDRs -- how B2B sales teams turn attendee lists into pipeline
• How to Verify Trade Show Attendance -- why LinkedIn proof beats purchased lists