Business Details
18 Years
experience
Emergency
services
Trusted Event Security and Staffing Services in Denver
Great Events of Colorado (GEC) was founded in 2008 with a mission to redefine event staffing through quality, reliability, and a family-oriented approach. Our owner, Gregory Tomasello, leveraged decades of experience in venue management to address gaps in temporary staffing, prioritizing exceptional customer service and staff empowerment. We specialize in security, traffic control, and event staffing for concerts, fairs, and corporate events, serving the Denver Metro area with a team of highly trained professionals. Our NSC-certified flaggers and Denver-licensed security personnel deliver tailored solutions, from parking management to advanced gate security using the OPENGATE detection system. With a focus on internal referrals and competitive pay, we cultivate a tightly knit team committed to exceeding client expectations.Over 15 years, weve grown from small triathlons to events with 9,000+ attendees, maintaining a reputation for seamless execution and client-centric service. Our partnerships with local authorities and event organizers ensure compliance and safety, while our cash control systems guarantee accountability. GECs leadership remains onsite for critical events, embodying our commitment to hands-on management and continuous improvement. We pride ourselves on transforming event logistics into stress-free experiences, driven by a culture where employees and clients feel valued as part of our extended family.
Services
Event Security
Traffic Control
Gates and Ticketing
Venue Staffing
Parking Management
Cash Control
Security Patrols
Certified Flaggers
Event Staffing
Security Training
Details
- Year established: 2008
Highlights and features
- We have over 15 years of experience in event security and staffing.
- Our NSC-certified flaggers ensure traffic safety and efficiency.
- Family-oriented approach fosters loyal, motivated teams.
- OPENGATE detection system provides advanced gate security.
- Owner onsite for critical events to guarantee execution quality.
Associations and certifications
- U.S. National Safety Council (NSC)
What people say
Professional security
Reliable staff
Experienced team
Family-oriented approach
Effective staffing
Services
Event Security
Our event security services provide professional, licensed personnel trained in crowd management, emergency response, and venue safety. Staff undergo rigorous screening and on-site training to ensure guest and property protection. With experience at events hosting up to 9,000 attendees, we deliver customized security plans that integrate with local law enforcement for maximum effectiveness.
Traffic Control
Certified NSC flaggers and parking crews manage vehicle flow, mitigate conflicts, and optimize parking capacity for large-scale events. Our systems reduce congestion while maintaining safety during peak ingress/egress times. Real-time radio communication ensures efficient traffic direction and incident response across venues.
Gates and Ticketing
Advanced OPENGATE technology combined with trained personnel ensures secure, efficient entry screening for events. Services include primary/secondary screening, cash control procedures, and detailed traffic reporting. Our systems balance security with attendee convenience while maximizing ticket sales potential.
Venue Staffing
We provide vetted, uniformed staff for guest services, security patrols, and operational support at hotels and HOA developments. Our employees receive specialized training in customer service, ID verification, and event coordination to enhance client operations while reducing labor costs.
Parking Management
Our certified crews organize vehicle placement to maximize space utilization and safety during high-attendance events. Services include directional guidance, conflict prevention, and post-event traffic dispersal strategies. Proven systems accommodate up to 8,000 vehicles with minimal neighborhood impact.
People
Gregory Tomasello
Owner
With 25+ years managing major theme parks across the U.S. and Africa, Gregory directs teams up to 450 employees and understands operational challenges firsthand. His leadership focuses on customer satisfaction and staff empowerment.
Questions
What types of events do you service?
We handle concerts, fairs, triathlons, weddings, corporate events, and sporting events ranging from small gatherings to 9,000+ attendee concerts.
Are your security personnel licensed and insured?
Yes, all security staff hold City of Denver licenses with full insurance coverage. Background checks and specialized training ensure compliance and professionalism.
How do you handle emergency situations?
Our security teams coordinate with local law enforcement and emergency services. Immediate radio communication protocols ensure rapid response to medical, safety, or security incidents.
Can you accommodate last-minute staffing needs?
Our established network of pre-vetted personnel allows rapid deployment for unexpected requirements while maintaining service quality standards.
What payment methods do you accept?
We accept major credit cards, ACH transfers, and company checks for contracted services. Payment terms are discussed during initial consultations.
Reviews (6)
Carmine Diaz
Dec 12, 2021
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Fantastic service! A Grass Roots company that pushed diligently through the struggles of the Pandemic .
Lance Panigutti
Apr 30, 2021
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Positive:Professionalism,Quality,Responsiveness,Value
Greg and his team have been a huge asset to our production company over the years and always go above and beyond in terms of filling gaps and problem solving. When it comes to parking, his team will always find a way to increase your parking capacity safely and effectively.
Greg and his team have been a huge asset to our production company over the years and always go above and beyond in terms of filling gaps and problem solving. When it comes to parking, his team will always find a way to increase your parking capacity safely and effectively.
Ricardo Aragon
Apr 24, 2021
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We have been using Great events of colorado security Staff for our events at our restaurant and their Staff is always been very profesional and helpful they are always on time and do their job right. we couldnt be happier with their services and although we have had different satff members at the events Thomas has been amazing and ten thumbs up speaking from all our restaurant staff and we certainly always request him to come back and help us when we have an event. If you need any of their services dont think twice just call them.
Tony Panigutti
Apr 22, 2021
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Positive:Professionalism
By far the best and most personable Special Event Parking & Security company i've worked with. Great Events was able to maximize our event parking to accommodate another 20% of participants and make both the inflow and outflow run smoothly. I use them on all my events!
By far the best and most personable Special Event Parking & Security company i've worked with. Great Events was able to maximize our event parking to accommodate another 20% of participants and make both the inflow and outflow run smoothly. I use them on all my events!
Derek Griffiths
Apr 21, 2021
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We have used Great Events of Colorado to handle parking and traffic flow at many of our running events over the last decade. Greg and his team do an amazing job. They are professional, easy to work with and highly skilled. I would recommend them to anyone in need of a parking and traffic flow solution.
Chris Grealish
Apr 17, 2021
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We are so lucky to have found GEC ! Our event would not go off smoothly without their help! Our event is 1000 participants parking in a very tight spot - Greg and GEC provides the best service. We highly recommend them
