ASPP PRO Members

ASPP PRO Members

Meet Our Team

Meet Our Team

Impact Security placed Mark Mineer over product strategy, manufacturing, and market execution for its DefenseLite® and BulletShield™ security glazing systems, built for schools, government facilities, and other high risk environments. Forced entry delay is measured in seconds, and those seconds are the entire budget. ASPP™ was founded by Chris Grollnek, an active shooter expert whose P.R.O. Model™ the Department of Justice selected as “A” national standard and which is in use at some installations and commands across the Department of Defense.

Mark Mineer of Impact Security, product strategy and manufacturing leader, in a professional portrait

Mark Mineer

Ballistic Glass and Laminates

Mark Mineer is a recognized leader in protective glazing and forced-entry mitigation, with decades of experience developing and deploying security solutions for schools, government facilities, and other high-risk environments.

Mark’s Executive Bio and Experience

Mark Mineer leads Impact Security’s product strategy, manufacturing, and market execution for DefenseLite® and BulletShield™ security glazing systems. He brings decades of experience advancing forced-entry and ballistic-mitigation technologies for schools, government facilities, and other high-risk building environments.

Previously, Mark served as President and CEO of MTI Shield, where he oversaw the development and large-scale deployment of retrofit glazing systems designed to delay intrusion, mitigate ballistic threats, and provide critical response time during active-shooter events. His work has been implemented across thousands of protected openings nationwide.

Mark’s expertise spans product engineering, certified system design, and commercial-scale manufacturing—bridging the gap between security performance and architectural practicality. Under his leadership, Impact Security delivers protective glazing solutions that meet the realities of modern building design without requiring full window replacement.

Mark brings a performance-driven, real-world perspective to Impact Security’s mission: helping architects, owners, and security professionals design safer, more resilient buildings.

Connect with Us

DefenseLite

Retrofit security glazing

Impact Security LLC is at the forefront of designing and engineering advanced security glazing and building product solutions that seamlessly integrate into architectural designs. Our patented DefenseLite®, BulletShield, and RiotLite systems provide an innovative, retrofit approach to fortifying glass doors, curtain walls, and vision glass—enhancing safety without compromising aesthetics. These solutions, along with Impact’s bullet resistant wall panels, transaction windows, doors and related building products, are engineered to mitigate risks associated with forced entry, ballistic threats, and smash-and-grab crimes, ensuring 24/7 protection for occupants and assets.

Securing Tomorrow, Today.

ASPP/PRO Your Partners in Prevention

DOJ Video: Behind the Scenes

Chris Grollnek, active shooter expert-prevention

View Our Workshops

Speaking Engagements

Find an Expert

Join us in our mission to create a future where the phrase “I never thought it would happen here” is a thing of the past. Together, we can make #NEVERHERE™ a reality, ensuring a safer tomorrow for everyone.

U.S. Secret Service – National Threat Assessment Center Reports Recent Mass Shootings Occurred in Places We Visit Everyday.

51%

Mass Shootings Happened in Businesses

35%

Mass Shootings Happened in Open Spaces

14%

Mass Shootings Happened in Schools, Universities, Places of Worship.

About ASPP/PRO

Learn about who we are, what we do, and what our mission is.

Our Community of Experts

Learn more about our team of experts fighting for your safety.

Speaking
Engagements

Request to have one of our advisors at your next event.

Watershed Moments

Learn more about why our destination is #NEVERHERE™.

Prevention
Strategies

Learn more about what you can do, today, to protect your future.

Media Resources

Download White Papers and Flyers about our services.

Voices of Trust and Security

Real Stories from Those Who’ve Experienced ASPP PRO’s Impact

Real Stories from Those Who’ve Experienced ASPP PRO’s Impact

Chris, I’m the FBI’s program manager for active shooter situations and on the White House working group seeking ways to prevent gun violence. I wanted to drop a note and let you know that I thought the DOJ video was well done. You address many points that we have been stressing.

Katherine Schweit
FBI Program Manager, Active Shooter Situations, The White House, Retired

I worked with Chris on a case covering several months and found him to be most diligent in handling the requirements of the project from inception to completion. He was always quick to respond to requests for information and assistance and his work product was invaluable to the successful outcome of the case. Chris is very goal oriented and was flexible to employ the necessary tactics and strategies to achieve the goals we had set for the project.

Kent Richardson

Chris, thanks so much for those kind words. I know my staff is very grateful for your insights and advice on keeping PCM a little safer. I can see God has given you a real calling in this area, and I encourage you to keep at it. At the end of your career, when you are looking back at everything, knowing you did what God called you to do will be worth more than you know. Take this advice from someone on that side of the river! Many blessings to you and safe travels!

Pastor Tom

I first met Chris Grollnek after the Pulse Nightclub massacre. He’s extremely knowledgeable about best practices regarding active shooters. Chris took great pains to explain law enforcement’s failures when responding to Pulse. He doesn’t talk down to ordinary citizens. Rather, he converses in a manner the layperson can comprehend. I’m very grateful for my professional relationship with Chris Grollnek.

Timothy Cwiek
Senior Writer Philadelphia Gay News

Thank you for presenting at the People’s City Mission on December 10th. Your presentation was greatly appreciated, and I have already shared some of the valuable information you provided with my organization. Your storytelling approach was engaging, although it would have been helpful to know more about the audience’s background and why we were all there. It’s a shame more people couldn’t attend, as your message deserves to be heard by a wider audience. Best of luck in your mission to raise awareness and put an end to these events.

Chris Klingenberg