Fort Collins · Colorado Springs · Colorado Front Range
Colorado’s Commercial Security Integrator
ESI Technologies designs, installs, and manages commercial security systems for businesses across Colorado. Surveillance. Access Control. Alarms. Monitoring. Managed Security Services. All from local offices in Fort Collins and Colorado Springs, backed by 40 years of experience.
Trusted by Colorado’s Leading Organizations
What We Do
Security Systems, Monitoring & Managed Services for Colorado Businesses
Whether you need a new system installed, ongoing monitoring, or a complete managed security program. ESI handles everything. We’re not a national call center. We’re a local team with offices in Fort Collins and Colorado Springs, and we’ve been doing this since 1984.
Security Systems
HD surveillance cameras, keycard and biometric access control, intrusion detection, and enterprise VMS, professionally installed and integrated.
Fire Alarm Systems
Fire alarm installation and NFPA 72 inspection by NICET Level I and II certified technicians. For clients who want fire alarm, security, and AV under one integrator.
24/7 Monitoring
UL-listed central station monitoring with video verification. When an alarm fires, a live person responds, not a voicemail.
Managed Security Services
Fully outsourced security management. ESI monitors your system, schedules maintenance, responds to issues, and keeps everything running. Predictable monthly cost, zero surprises.
Remote Guarding
Live agents monitor your cameras in real time and intervene with audio warnings before threats escalate. Active deterrence, not just recording.
Managed Sites
Already have a security system? Protect your investment with an ESI service agreement: scheduled maintenance visits, priority response, and a single point of contact.
AV Systems
Conference room displays, video conferencing, digital signage, and unified audio, designed and installed to match how your team actually works.
Maintenance & Service
Annual inspections, preventive maintenance contracts, firmware updates, and repair response, keeping your system reliable when it matters most.
Why ESI
Local Offices. National Capability. 40 Years in Colorado.
When you call ESI, you reach a technician who knows Colorado. Our Fort Collins team serves Northern Colorado businesses. Our Colorado Springs team covers the Pikes Peak region. Both teams draw on 40 years of collective expertise and are backed by the same quality standards, the same certifications, and the same commitment to keeping your system running.
- Master Electrician on staff, state-licensed through Colorado DORA
- CJIS compliant, trusted by government and law enforcement agencies
- Vendor-agnostic: we recommend the right system for your needs, not the most profitable one
- Two local offices in Fort Collins and Colorado Springs, no dispatch from out of state
- 40+ years protecting Colorado businesses, institutions, and municipalities
40+
Years protecting Colorado businesses
CJIS
Certified for government and law enforcement environments
2
Local offices in Colorado
24/7
Monitoring and emergency response
6
Industries served across Colorado
30+
Cities served across Colorado
After decades of working together, the relationship between Larimer County and ESI remains strong. ESI handles issues related to life safety and security for the County, providing services across a wide list of County departments and offices and within a very complex list of work environments. When new challenges require a high level of urgency, the team at ESI still finds a way to effectively collaborate within the County organization, ensuring added value and a better solution for all involved. We value the partnership with ESI as we continue to work together to protect and support County staff and community members.
Ken Cooper
Facilities Director, Larimer County
Two Offices. One Team. All of Colorado.
We’re not a national company with a Colorado branch. We’re a Colorado company with roots in Fort Collins going back decades and a full-service office in Colorado Springs. When you need us, we’re close.
Fort Collins Office
Serving Northern Colorado: Fort Collins, Loveland, Greeley, Windsor, Longmont, and the surrounding region.
(970) 999-1681
Colorado Springs Office
Serving Southern Colorado: Colorado Springs, Pueblo, Castle Rock, and the Pikes Peak region.
(719) 602-7336
Start with a Free Security Site Walk
An ESI technician walks your facility, identifies vulnerabilities, and delivers a written assessment at no cost and no obligation. It’s how most ESI projects begin.