
Your Trusted Partner in Professional Security
Alexios Security Solutions is built on one guiding principle: security should provide peace of mind without intruding on your life. From executive protection in Nevada and Arizona to specialized training programs, our focus is on creating safe environments that allow clients to focus on what matters most.
Our approach blends advanced security strategies with discretion, hospitality, and respect for every client we serve. Whether protecting an individual, a family, a place of worship, or a corporate event, our team is trained to anticipate risks, adapt to changing situations, and operate with the highest level of professionalism.
Meet Our Leadership
Antonio Guadagni – Managing Director
With extensive international and domestic experience in executive protection and over two decades in the security industry, Antonio Guadagni leads Alexios Security Solutions with a clear vision: to deliver world-class security that is personal, discreet, and effective.
Antonio’s career has taken him from complex protective assignments in high-profile environments to large scale security operations for major events. His expertise spans executive protection, risk assessment, estate security, and secure travel coordination.
In Nevada and Arizona, Antonio is recognized for his ability to design security plans that adapt to each client’s lifestyle while maintaining uncompromising safety standards. His work has included coordinating multi-agent protection teams, developing secure transportation networks, and implementing event security for prominent corporate and private gatherings.
Clients appreciate Antonio’s hands-on leadership and direct involvement in each project. Whether working with a corporate board, a family, or an international guest, Antonio ensures every detail is managed with care, precision, and respect.
Christina Guadagni – Managing Partner, CFO & HR Director
Christina Guadagni serves as the Managing Partner, Chief Financial Officer, and HR Director of Alexios Security Solutions. With a strong background in financial management, human resources, and client relations, she ensures the company’s operations remain efficient, compliant, and client focused. Christina plays a key role in financial planning, employee relations, and maintaining strong client partnerships, supporting both the growth of the business and the team that drives it.
Her background in operations, logistics, and client relations allows her to coordinate complex schedules, manage multi-location projects, and ensure communication flows seamlessly between clients and security teams.
Christina is committed to making each client interaction positive, professional, and productive. She plays a key role in maintaining the personalized service that defines Alexios, ensuring that both high-profile clients and private individuals receive the same level of attention and care.
Our Values, Services, and Training
Discretion
We operate with complete respect for privacy. Whether we are protecting an executive traveling through Nevada, providing residential security in Arizona, or safeguarding a house of worship, our goal is to be present without being intrusive. Every action we take is measured to protect the client’s safety while allowing them to go about their day without unnecessary attention.
Professionalism
Every assignment, large or small, receives the same level of focus, courtesy, and precision. Our team members are carefully selected and extensively trained to represent both themselves and Alexios Security Solutions with the highest standards. Professionalism is not just about appearance—it is about attitude, conduct, and delivering exactly what was promised.
Adaptability
Every situation is unique. We adapt our protection strategies to match the client’s schedule, location, and comfort level. Whether you are in a high-profile business meeting, attending a private family gathering, or traveling between cities, our security solutions evolve with the environment and the moment.
Preparedness
Our work is proactive, not reactive. We anticipate potential risks and plan ahead so that clients are protected at every stage. From route planning and threat assessments to venue coordination and emergency protocols, we ensure there is always a clear, effective plan in place.
Client-First Service
Your safety, comfort, and confidence are our priority. We listen carefully to your needs, respect your preferences, and ensure you feel secure at every step. Whether you are a high-profile public figure, a corporate leader, or a private citizen, we tailor our services to your lifestyle and expectations.
Alexios Security Solutions delivers a full range of protective services for clients across Nevada and Arizona. Each service is designed to provide peace of mind, reduce risk, and allow clients to focus on what matters most.
Executive Protection Services
Discreet and effective protection for individuals, families, and executives who require security without disruption. Our executive protection agents anticipate threats, manage logistics, and safeguard clients during travel, events, and day-to-day life.
Secure Ground and Air Transportation
Travel securely by vehicle or private aircraft with our highly trained security drivers and travel protection specialists. We ensure every stage of your trip, from departure to arrival is smooth, private, and fully protected.
Estate and Residential Security
Your home should be your sanctuary. We design and manage security measures that protect estates, residences, and vacation properties while respecting the comfort and privacy of the people who live there.
Security for Houses of Worship
Specialized security designed to protect congregations and sacred spaces. Our agents provide respectful, unobtrusive protection so worshippers can gather in peace while maintaining open and welcoming environments.
Uniformed Security Guard Services
Professional, highly trained uniformed guards who provide visible deterrence and a reassuring presence at properties, events, and community spaces. Our guards are both vigilant and approachable, blending security with genuine hospitality.
Hostile Termination Training
Specialized training for leadership, HR teams, and security personnel on managing employee terminations that carry heightened risk. We help organizations prepare, protect their people, and maintain workplace stability during difficult transitions.
In addition to our professional security services, Alexios Security Solutions offers training programs designed to equip individuals, teams, and organizations with essential safety and protection skills. Each course is taught by experienced professionals and blends proven techniques with real-world application.
Medical Training – First Aid and CPR
Learn how to respond to medical emergencies with confidence. This course covers First Aid and CPR for adults, children, and infants, as well as proper use of Automated External Defibrillators (AEDs).
Stalker Detection and Prevention
Develop the awareness and strategies needed to identify, deter, and respond to stalking threats. Training is available both on location and through e-learning.
Protection Response Tactics
On-location training that builds your ability to react quickly and effectively to physical threats while minimizing risk to yourself and others.
Nevada CCW Certification
Complete the state-required course for a Nevada Concealed Carry Weapon permit with expert instruction focused on safety, responsibility, and legal compliance.

Alexios Security Solutions
Serving Nevada and Arizona With Trusted Protection
From our offices in Phoenix and Las Vegas, Alexios Security Solutions delivers professional protection services across the Southwest. We proudly serve clients throughout Arizona and Nevada with discretion, precision, and care.
Headquarters
7285 Dean Martin Drive
Suite 220A
Las Vegas, NV 89118
Serving Arizona
Serving Nevada
Las Vegas
Henderson
Reno
Carson City
Elko
License: PILB# 4195
Testimonials from the Community
Congregation Ner Tamid
“Alexios Security has consistently provided our community with outstanding security services. Their professionalism, reliability, and dedication have given us peace of mind. The team is well-trained, courteous, and always punctual, providing exceptional support during services and events.” — Edward Simon, Executive Director
Global Sales Operations Manager at IoActive, Inc.
“A true security professional! Evan is dedicated when it comes to security and the industry in general. I have worked with him and the teams he puts together for many events, from the 1-person details to events that scale on the mega charts. There is not much that Evan can’t handle with the upmost professionalism. I would recommend Evan to the best of them.” — Sean R.
Absolute Private Security
“Antonio is a great mentor for anyone in the security industry. He is very hard working, adaptive and highly customer service oriented. While working on a security detail together, Antonio was able to mitigate risks and quickly identify solutions for each of the situations we came across. I learned a lot from Antonio and would gladly work for him again. He is extremely knowledgeable and professional. Thank you Antonio for all the help and being a continued source of knowledge for me. I greatly appreciate your attitude and willingness to help others grow.” — Anthony S. Security Operations Manager
“Alexios Security Solutions brings together two seasoned veterans in the Risk and Executive Protection industry. Collectively, Evan and Antonio have nearly 3 decades of protective experience and I recommend them to any of my clients. I’ve worked with them for several years and know their pricing is fair and their quality level is at the top of the industry.” — Steve K.
Security consultant
Why Clients Choose Alexios
Clients choose Alexios Security Solutions because we do more than protect. We create an environment where they can work, travel, and live without distraction. Our security is proactive, anticipating issues before they arise, and adaptable to the unique demands of each situation.
Our team integrates seamlessly into your environment, whether that means blending into a public space, providing visible deterrence, or coordinating with venue and event staff. Every assignment is handled with the same precision, dedication, and discretion.