Insights

Strong Defense Focus ISI specializes in supporting defense contractors with compliance and security requirements including CMMC and NIST, creating a need for advanced cybersecurity, compliance management tools, and secure IT solutions.

Expanding Compliance Services With their core offering centered around compliance and managed cybersecurity, there are opportunities to introduce innovative security technologies, cloud security solutions, and audit readiness services to strengthen their clients' security posture.

Technological Stack Synergies Using platforms such as Microsoft Office 365, Google Cloud Identity, and Python, ISI demonstrates an openness to cloud-based and automation solutions, presenting a potential to cross-sell emerging cloud management and AI-powered security services.

Market Expansion Potential Supporting over 900 defense contractors situates ISI as a significant player in the defense industry, indicating opportunities to deepen relationships and expand into adjacent sectors requiring high-security IT and compliance solutions.

Growth and Innovation Recent industry news shows a focus on innovation, AI, and leadership expansion, signaling an ongoing investment in cutting-edge solutions, which aligns with opportunities to offer advanced cybersecurity, AI integration, and digital transformation services.

Similar companies to ISI

ISI Tech Stack

ISI uses 8 technology products and services including Microsoft Advertising, Collab, StackAdapt, and more. Explore ISI's tech stack below.

Microsoft Advertising
Advertising
Collab
Call Tracking
StackAdapt
Demand Side Platforms
Google Cloud Identity
Identity And Access Management
Office 365
Office Suites
Python
Programming Languages
iOS
Programming Languages
HTTP/3
Web & Portal Technology

Media & News

ISI's Email Address Formats

ISI uses at least 2 format(s):

ISI Email Formats	Example	Percentage
FLast@dodsecurity.com	JDoe@dodsecurity.com	83%
LFirst@dodsecurity.com	DJohn@dodsecurity.com	15%
First.Last@dodsecurity.com	John.Doe@dodsecurity.com	2%

Frequently Asked Questions

Where is ISI's headquarters located?

ISI's main headquarters is located at 11921 Freedom Drive Suite 600 Reston, Virginia United States. The company has employees across 6 continents, including North AmericaAfricaAsia.

What is ISI's phone number?

You can contact ISI's main corporate office by phone at

+1-703-376-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is ISI's stock symbol?

ISI is a publicly traded company; the company's stock symbol is TISI.

What is ISI's official website and social media links?

ISI's official website is isidefense.com and has social profiles on LinkedIn.

What is ISI's SIC code NAICS code?

ISI's SIC code is 7381 - Detective, Guard, and Armored Car Services NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does ISI have currently?

As of April 2026, ISI has approximately 313 employees across 6 continents, including North AmericaAfricaAsia. Key team members include Chief Of Staff To The Ceo: C. D.Chief Revenue Officer (cro): S. C.Chief Financial Officer: D. A.. Explore ISI's employee directory with LeadIQ.

What industry does ISI belong to?

ISI operates in the IT Services and IT Consulting industry.

What technology does ISI use?

ISI's tech stack includes Microsoft AdvertisingCollabStackAdaptGoogle Cloud IdentityOffice 365PythoniOSHTTP/3.

What is ISI's email format?

ISI's email format typically follows the pattern of FLast@dodsecurity.com. Find more ISI email formats with LeadIQ.

When was ISI founded?

ISI was founded in 2010.

ISI

Q: What is ISI's official website and social media links?

ISI's official website is isidefense.com. ISI has social profiles on LinkedIn.

Q: How many employees does ISI have currently?

ISI has approximately 313 employees.

Q: What technology does ISI use?

ISI's tech stack includes StackAdapt, Apple Business Manager, OneDrive, Kotlin, Google Cloud Platform.

Q: What is ISI's NAICS code?

ISI's NAICS code is 5415 (Computer Systems Design and Related Services).

IT Services and IT ConsultingVirginia, United States201-500 Employees

ISI is the only partner that meets both your compliance and security needs. We proudly support over 900 defense contractors with: 

-	CMMC & NIST Compliance 
-	FSO Services 
-	Facility & Personnel Clearances
-	Managed IT & Cybersecurity 

We empower defense contractors to achieve compliance, no matter where they are in their journey.