Insights

Defense Compliance ISI actively serves over 900 defense contractors with CMMC and NIST compliance, FSO services, and clearance management. This positions them as a strategic partner for any enterprise seeking to win or maintain defense sector contracts, offering a ready-made compliance and security stack that can be upsold with managed IT and cybersecurity.

Security Focus The company combines compliance with security operations, including managed IT and cybersecurity services. For sales teams, this creates an opportunity to cross-sell comprehensive security offerings to existing clients seeking to consolidate vendors and meet stringent defense-related security requirements.

Cloud & Tech ISI’s tech stack includes Google Cloud, Microsoft Azure, CCSP, Zendesk, and analytics tools. There is a clear upsell path to advanced cloud security, governance, and tooling modernization services for defense contractors migrating or optimizing cloud environments.

Growth Signals With a sizable client base in the defense sector and a niche focus on compliance and security, ISI is well-positioned to expand by targeting additional defense prime contractors and subcontractors, especially those navigating evolving CMMC requirements and federal cybersecurity mandates.

Partnership Advantage As a partner claiming capability in both compliance and security postures, ISI can be a preferred vendor for channel partners and MSPs serving government contractors, enabling joint go-to-market motions around audit readiness, clearance management, and incident response.

ISI Tech Stack

ISI uses 8 technology products and services including DoubleClick Floodlight, CCSP, Zendesk, and more. Explore ISI's tech stack below.

  • DoubleClick Floodlight
    Advertising
  • CCSP
    Certificates
  • Zendesk
    Documentation Tools
  • Google Cloud
    Infrastructure As A Service
  • Microsoft Azure
    Platform As A Service
  • Airtable
    Project Management
  • Google
    Search Engines
  • Google Analytics
    Web Analytics

Media & News

ISI's Email Address Formats

ISI uses at least 2 format(s):
ISI Email FormatsExamplePercentage
FLast@dodsecurity.comJDoe@dodsecurity.com
83%
LFirst@dodsecurity.comDJohn@dodsecurity.com
15%
First.Last@dodsecurity.comJohn.Doe@dodsecurity.com
2%

Frequently Asked Questions

What is ISI's phone number?

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

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

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

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

What is ISI's SIC code NAICS code?

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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?

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As of July 2026, ISI has approximately 333 employees across 6 continents, including North AmericaAfricaAsia. Key team members include Chief Executive Officer: D. L.President & Chief Operating Officer: W. G.President: G. B.. Explore ISI's employee directory with LeadIQ.

What industry does ISI belong to?

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ISI operates in the IT Services and IT Consulting industry.

What technology does ISI use?

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ISI's tech stack includes DoubleClick FloodlightCCSPZendeskGoogle CloudMicrosoft AzureAirtableGoogleGoogle Analytics.

What is ISI's email format?

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

When was ISI founded?

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ISI was founded in 2010.
ISI logo

ISI

IT Services and IT ConsultingVirginia, United States201-500 Employees

ISI is an IT services and consulting firm that concentrates on helping defense contractors meet both regulatory compliance and security needs. It positions itself as a single partner for these challenges, serving more than 900 defense contractors. The firm offers services to establish and maintain compliance programs aligned with CMMC and NIST, provides facility security officer support, handles facility and personnel clearances, and delivers managed IT and cybersecurity.

Headquartered in Reston, Virginia, the firm operates as a mid-sized provider within the IT services and consulting space. Its clients are defense contractors seeking to meet security and regulatory obligations across their programs and operations. Positioned for defense-sector needs, the firm focuses on aligning IT services with compliance requirements to support ongoing security and regulatory programs.

Section iconCompany Overview

Phone number
SIC Code
7381 - Detective, Guard, and Armored Car Services
Stock Symbol
TISI
NAICS Code
5415 - Computer Systems Design and Related Services
Founded
2010
Employees
201-500

Section iconFunding & Financials

  • $100M$250M

    ISI's revenue is estimated to be in the range of $100M$250M

Section iconFunding & Financials

  • $100M$250M

    ISI's revenue is estimated to be in the range of $100M$250M

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