WELCOME TO

Cornerstone

About Us

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.

Vision & Mission

Meet The Team

Reilly Leonard

Chief Operating Officer

Reilly Leonard

Chief Operating Officer

Patrick Palmer

Chief Executive Officer

Patrick Palmer

Chief Executive Officer

Brian Sammons

Chief Financial Officer

Brian Sammons

Chief Financial Officer

Darcelle Wilson

VP of Human Resources

Darcelle Wilson

VP of Human Resources

Brandon Altmann

Chief Growth Officer

Brandon Altmann

Chief Growth Officer

Michelle Allen

Director of Systems and Security, FSO

Michelle Allen

Director of Systems and Security, FSO

Virginia Blair

Director of Marketing & Operations

Virginia Blair

Director of Marketing & Operations

Kaitlin Krywy

Managing Director, Aerospace & Defense

Kaitlin Krywy

Managing Director, Aerospace & Defense

Sean Wentz

Managing Director, MPO

Sean Wentz

Managing Director, MPO

WHERE CAN WE HELP?

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!

WHAT WE DO

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.

Learn More

WORK WITH US

Search through all of our open positions.

Learn More

GET IN TOUCH

Contact Us
  • Virginia
    13454 Sunrise Valley Drive, Suite 100
    Herndon, VA 20171
    Maryland
    2288 Blue Water Blvd, Suite 330
    Odenton, MD 21113
  • eFAX
    443.769.1559
  • Phone
    703.691.5100
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We’re thrilled to introduce this month’s Employee Spotlight: Stephanie Lovick! 🌟 Stephanie’s dedication to cybersecurity, passion for growth, and positive energy make her a valued part of our team. 💻✨ Keep reading to hear Stephanie’s insights and fun facts in her Q&A we did with her recently, below! ⬇️

Q: What initially drew you to your field, and how has that passion evolved over time?
A: I’ve always been fascinated by technology, but cybersecurity intrigued me because of its ever-changing nature of new threats, new solutions, and a constant need to stay ahead. Over time, my passion has evolved into a commitment to not just protecting systems but also educating others about security best practices.

Q: What’s a valuable lesson you’ve learned from a work experience, good or bad?
A: One of the biggest lessons I’ve learned is that security isn’t just a technical issue, but it’s also a human issue. Even the best defenses can be bypassed if people aren’t aware of risks, which is why clear communication and collaboration are just as vital as technical expertise.

Q: What’s your strategy for staying motivated during challenging times?
A: I remind myself of the bigger picture on life and also why cybersecurity/technology matters and how it impacts lives. When things get tough, I focus on problem-solving, lean on my team, and take breaks when needed to reset.

Q: What are you most passionate about outside of work?
A: I enjoy playing & watching tennis, outdoor activities on the beach, mentoring younger people and being part of community engagement. It helps me stay balanced and keeps my problem-solving skills sharp.

Q: What’s a fun fact about yourself that most people wouldn’t know?
A: I found myself being able to make people laugh from my response to conversations. I love to laugh which is a healing for the body. It stimulates many organs and enhances our intake of oxygen-rich air, stimulates the heart, lungs and muscles, and increases endorphins that are released by the brain.

Q: What’s your favorite way to spend a day off?
A: Relaxing with family, friends and many activities surrounding water.

Q: What’s your favorite thing to cook (or order)?
A: I love a good seafood meal; however, I am not a fan of cooking. I can always get my family to cook a homemade meal that makes my body sing.

Q: What’s your go-to karaoke song (or song that always gets you pumped up)?
A: “We Are Family” by Sister Sledge ; It’s a great song of celebration.

Q: What’s the best piece of advice you’ve ever received?
A: "Always be learning." Technology and cybersecurity evolve rapidly, and staying curious is the key to staying ahead.

Q: Do you have a favorite quote or motto that you live by?
A: "I've learned that people will forget what you said, people will forget what you did, but people will never forget how you made them feel" and "I can be changed by what happens to me, but I refuse to be reduced by it"
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4 days ago

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✨ We’re loving how our printed company newsletters are stacking up!
 
Our last edition focused on Excellence in the Workplace — packed with thoughtful insights from our executive team on what excellence means to them. (P.S. — We shared an amazing excerpt from our VP of Human Resources on 4/17 if you want to go back and check it out!)
Now, we’re gearing up for the next issue of Around the Corner, but our theme is still up in the air so...
 
💬 We want to hear from YOU!
What topics or ideas would you love to see featured and hear about from our internal team in our next newsletter? Drop your suggestions in the comments below and help us shape the conversation!
... See MoreSee Less

✨ We’re loving how our printed company newsletters are stacking up!
 
Our last edition focused on Excellence in the Workplace — packed with thoughtful insights from our executive team on what excellence means to them. (P.S. — We shared an amazing excerpt from our VP of Human Resources on 4/17 if you want to go back and check it out!)
Now, we’re gearing up for the next issue of Around the Corner, but our theme is still up in the air so...
 
💬 We want to hear from YOU!
What topics or ideas would you love to see featured and hear about from our internal team in our next newsletter? Drop your suggestions in the comments below and help us shape the conversation!

🌴✈️ GIVEAWAY TIME! ✈️🌴
Where in the world is this Cornerstone backpack?! 🧭👀
 
We’re giving you AND a friend a chance to win the backpack in this photo! Here’s how to enter:
🎒 Guess the location in the comments
👯 Tag a friend who would rock this backpack too
📆 Enter by EOD on 5/2  Whether you guess right or not, you AND your tagged friend are in the running! 🙌
 
Already repping Cornerstone swag while you travel? 🌍 Snap a pic with our logo in it, share it, and tag us — we LOVE seeing where our crew goes! 💙💼
 
Ready… set… comment below! 👇👇
... See MoreSee Less

🌴✈️ GIVEAWAY TIME! ✈️🌴
Where in the world is this Cornerstone backpack?! 🧭👀
 
We’re giving you AND a friend a chance to win the backpack in this photo! Here’s how to enter:
🎒 Guess the location in the comments
👯 Tag a friend who would rock this backpack too
📆 Enter by EOD on 5/2  Whether you guess right or not, you AND your tagged friend are in the running! 🙌
 
Already repping Cornerstone swag while you travel? 🌍 Snap a pic with our logo in it, share it, and tag us — we LOVE seeing where our crew goes! 💙💼
 
Ready… set… comment below! 👇👇

Another week, another hot job! We'd love to see your resume -- follow the link below to start talking with one of our awesome recruiters, today! We hope to hear from you. ✅✅
cornerstonedefense.com/job-listings/graph-database-engineer/
... See MoreSee Less

Another week, another hot job! Wed love to see your resume -- follow the link below to start talking with one of our awesome recruiters, today! We hope to hear from you. ✅✅
https://cornerstonedefense.com/job-listings/graph-database-engineer/
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