people sitting on chair in front of laptop computers

ABOUT US

At SEIS Holdings, we believe firearms training should be personal, practical, and rooted in real-world experience.

people sitting on chair in front of laptop computers

ABOUT US

At SEIS Holdings, we believe firearms training should be personal, practical, and rooted in real-world experience.

people sitting on chair in front of laptop computers

ABOUT US

At SEIS Holdings, we believe firearms training should be personal, practical, and rooted in real-world experience.

Who We Are

MORE THAN FIREARMS TRAINING

SEIS Training & Consulting was founded on one core belief: learning never stops. Owners and instructors Sean and Elly travel nationwide to train with leading experts, ensuring their students always receive the most current and practical instruction available.

Whether you’re seeking foundational skills, advanced defensive techniques, or family-focused safety training, SEIS is committed to equipping you with the confidence to handle firearms responsibly.

person sitting in a chair in front of a man
person sitting in a chair in front of a man
person sitting in a chair in front of a man

Our team

MEET THE INSTRUCTORS

Elizabeth Elly Owner

Elizabeth “Elly” A.

Owner & Instructor

Elly’s journey began in 2020 with a desire to protect herself. Through years of training, she became a certified NRA Instructor and Range Safety Officer, and now inspires women and families to feel confident and capable in self-defense.

Elizabeth Elly Owner

Elizabeth “Elly” A.

Owner & Instructor

Elly’s journey began in 2020 with a desire to protect herself. Through years of training, she became a certified NRA Instructor and Range Safety Officer, and now inspires women and families to feel confident and capable in self-defense.

Elizabeth Elly Owner

Elizabeth “Elly” A.

Owner & Instructor

Elly’s journey began in 2020 with a desire to protect herself. Through years of training, she became a certified NRA Instructor and Range Safety Officer, and now inspires women and families to feel confident and capable in self-defense.

David Martinez

Sean Bergert

Owner & Lead Instructor

With over 45 years of firearms experience and a 32-year law enforcement career, Sean brings unmatched expertise. As a retired Police Captain, SWAT veteran, and certified firearms instructor, he offers real-world training rooted in safety, fundamentals, and readiness.

David Martinez

Sean Bergert

Owner & Lead Instructor

With over 45 years of firearms experience and a 32-year law enforcement career, Sean brings unmatched expertise. As a retired Police Captain, SWAT veteran, and certified firearms instructor, he offers real-world training rooted in safety, fundamentals, and readiness.

David Martinez

Sean Bergert

Owner & Lead Instructor

With over 45 years of firearms experience and a 32-year law enforcement career, Sean brings unmatched expertise. As a retired Police Captain, SWAT veteran, and certified firearms instructor, he offers real-world training rooted in safety, fundamentals, and readiness.

Main office

45+

Years of firearms experience

300+

Students trained

100%

Safety-focused instruction

32

Years in law enforcement

What Sets Us Apart

THE SEIS ADVANTAGE

photography of people inside room during daytime
photography of people inside room during daytime
photography of people inside room during daytime

Where We Train

We offer training across Miami-Dade and Broward Counties at trusted ranges. For select courses, we also bring training directly to you — at homes, businesses, schools, and places of worship. This flexibility allows you to learn in an environment that works best for your needs.

Certifications & Recognition

Our Florida Concealed Weapons Permit course meets all state requirements, and students who complete it receive the certificate required for their application. Additional certificates may be provided upon request. Beyond paperwork, our training is recognized for its focus on practical, real-world skills that stay with you long after class.

Safety-First Approach

Safety is the foundation of everything we teach. From handling and storage to live-fire drills and defensive applications, every lesson reinforces responsibility and respect for firearms. Our goal is simple: that every student leaves confident, competent, and prepared — never careless.

Small Group Advantage

We keep classes small on purpose. With fewer students per instructor, you get more one-on-one coaching, more time to practice, and more opportunity to ask questions. This format ensures faster learning, better retention, and training that adapts to your pace.

photography of people inside room during daytime
photography of people inside room during daytime
photography of people inside room during daytime
photography of people inside room during daytime
photography of people inside room during daytime
photography of people inside room during daytime

Real-World Expertise

Our instructors bring decades of law enforcement, tactical, and personal firearms experience to the range. We don’t just teach theory — we teach skills you can trust under pressure. From first-time shooters to advanced defensive training, our experience translates into your confidence.

A Network of Experts

Beyond Sean and Elly’s instruction, SEIS partners with a cadre of highly qualified trainers specializing in diverse areas of firearms and tactical training. Whether you’re looking for foundational skills or advanced niche instruction, we’ll connect you with the right expert.