Cornerstone Defense LLC is a Small Business servicing the Intelligence, Defense, and Space communities of the U.S. Government. Cornerstone Defense specializes in cloud architecture, enterprise engineering, systems and network engineering, systems and network security, and application and software development. We use these foundational technology areas to deliver solutions for data analytics, cyber, and space/mission operations, customized to meet mission requirements. We are headquartered in Herndon, VA, with employees working across the U.S including DC, MD, CO, UT, NM, HI, and CA. At Cornerstone Defense, you’ll find a partner that values strong relationships, excellence, and teamwork. Our team is a network of professionals who are dedicated to providing agile, secure, and efficient solutions to support mission success. With Cornerstone Defense, you’re not just choosing a service provider, but a committed, steadfast team with a culture designed to excel.
To find out more information on where we can help you, services we provide,
joining or partnering with our team, please select one of the links below!
We bring together a unique blend of cutting-edge capabilities, specialized expertise, and a remarkable company culture that focuses on the recruitment and retention of highly-sought-after employees.
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🎉 What. A. Good. Good. Night. 🎉 Do we have to say much more?
Our Annual Employee Appreciation Celebration is always a highlight of the year. But what matters most about the whole thing? The real relationships, networking and community we establish with each meeting, each event, each opportunity. If we could appreciate each of our employees, this much, every day, we would. Thank you all for the substance, background, and empierce you bring to all that you do for our team.
This year was by far the most fun we've had yet, getting to know our team members and let them understand they are appreciated more than they know! Team Cornerstone ... if you enjoyed our annual party this past weekend, let us know what your vision is for 2026 and beyond! The sky is the the limit -- and that would never be possible without each and every one of your incredibly admirable work on our team.
Here's to 2026 being our best year yet. We couldn't do it without you!
#AuthenticityWins #CultureInAction #PeopleFirst #EmployeeAppreciation #CornerstoneDefense #GoodGoodNight
🎉 We love hearing this kind of feedback from our team!
When someone on your team says “Best holiday party EVER!” … you know you did something right! 🙌💃🕺
📸 Stay tuned — we’ll be sharing the full recap and photos later this week. You won’t want to miss it! 👀🔥
#TeamCelebration #BestPartyEver #StayTuned
✨ Behind the scenes at Cornerstone! ✨
Yesterday was all about striking a pose. 📸 Big things are on the horizon for 2026, and we can’t wait to share what’s coming your way! 🚀 Stay tuned, because this is just the beginning… 👀 What do you think our photo shoot was for!? #CornerstoneCrew #BTS #NewYearNewLook
