Trusted in Security
Since 2002
Nexum® is a cybersecurity and networking company that builds and defends global networks, empowering organizations to conduct mission-critical business securely and efficiently. We take a holistic, value-based approach to cybersecurity and networking that includes best-of-breed products, professional services, certified training courses, manufacturer-authorized support, and monitored and managed services.
Founded in Chicago in 2002 and headquartered in Hammond, Indiana, we are a VA-verified Service-Disabled Veteran-Owned Small Business (SDVOSB). Most importantly, we approach the business of cybersecurity with one simple statement:
Do what’s right for the customer and success will follow.
Nexum helps you mitigate risk, protect your data, increase business continuity, and meet your unique business objectives by detecting and preventing network threats, intrusions, and disruptions. In other words, we equip you with the information, tools, training, and resources you need to effectively manage IT risk.

20 Years of Security
Founded in April of 2002, we are proud to celebrate our 20th anniversary. This post includes quotes from Founder and CEO of Nexum and a Back in 2002 infographic.
ENTERPRISE & NETWORK SECURITY
Cybersecurity That Supports Your Needs
We are a SOC 2 Type 2-compliant Managed Security Service Provider (MSSP) with a range of services to help you defend your network efficiently and effectively. Most importantly, Nexum’s manufacturer-authorized technical support team is available 24/7 via telephone, email, and our web-based portal.
In other words, at Nexum, We Mean Security®.
Join Team Nexum
We’re hiring! And looking for the best of the best in cybersecurity to join our team.
View all Career Opportunities.
Also, connect with us on LinkedIn.
first*defense Customer Success Manager
The Customer Success Manager (CSM) acts as liaison between selected SNOCC customers, Nexum technical resources such as the Network Security Engineer, the Account Executive, and
Security Analyst
As part of the Security and Network Operations Command Center (SNOCC) staff you will be instrumental in supporting customers as part of our managed services
Account Executive – Major Metro Territories
Nexum, Inc. a leader in cybersecurity and IT networking, is growing! We are currently looking for dedicated, passionate, and experienced Account Executives for our fastest-growing
Five Pillars
One Mission
At Nexum® we approach the business of cybersecurity with one simple statement: Do what’s right for the customer and success will follow.
Best-Of-Breed Products
Best-Of-Breed Products
Managed & Monitored Services
Managed & Monitored Services
Manufacturer-Authorized Support
Manufacturer-Authorized Support
Manufacturer-Authorized Training
Manufacturer-Authorized Training
Manufacturer-Authorized Support
Manufacturer-Authorized Support
Check Out Nexum Resources
View all Resources.

Black Hat 2023 and DEF CON 31: Two Conventions, One Long Week
The Nexum team attended Black Hat 2023 and DEF CON 31 conferences in Las Vegas. Check out this post about their experiences and some guidance on the differences between the two events.

Artificial Intelligence in Enterprise Networking
What is the difference between AI and ML? How do you know if an AI system is correct and helpful? Check out this free guide.

Wi-Fi 6 and 6E at a Glance
A free guide highlighting some of the improvements of Wi-Fi 6 over the “last” major version of Wi-Fi: Wi-Fi 5 or 802.11ac, and what Wi-Fi 6E brings to Wi-Fi 6.