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Company profile

ISI Tech Stack

Compliance, clearance and managed security services for defense contractors

IT Services and IT Consulting Reston, Virginia 51–200 employees Founded 2010 Privately Held
isidefense.com LinkedIn

ISI combines CMMC/NIST compliance, facility security officer services and managed IT for the defense industrial base. Its stack is Microsoft-centric and security-heavy (Sentinel, Defender, Purview, Intune, Entra, CrowdStrike), with active work moving clients into Microsoft GCC and Power BI in GCC High. Hiring skews toward engineering, support and security roles, which points to scaling managed-service delivery rather than sales.

Tech Stack 36 technologies

Core StackPower BI PandaDoc BambooHR Intune CrowdStrike AWS Python Microsoft Exchange Kotlin React PostgreSQL AWS Lambda AWS RDS Azure DISS JazzHR Purview Microsoft Defender Microsoft Sentinel Exchange Online Microsoft Defender for Office 365 Microsoft Defender for Endpoint Microsoft Purview GCP Entra AWS ECS Codex Google Cloud Identity Azure Firewall CMMC+6 more

What ISI Is BuildingChallenges and projects from their job posts

◆Challenges

  • Meeting federal and industry security compliance standards
  • Cloud migration and data integrity in regulated environments
  • Managing surge workload
  • Reducing contracting cycle times and contractual issues
  • Service friction

▲Active Projects

  • Cloud migration to Microsoft GCC
  • Power BI deployment in GCC High
  • DCSA security reviews and assessments
  • Facility clearance sponsorship and lifecycle management
  • Managed security services onboarding
  • Security control profile maintenance

Hiring Activity

Steady20 roles · 4 in 30d

Department

Engineering
5
Support
5
Security
4
HR
1
Legal
1
Ops
1
Sales
1

Seniority

Mid
8
Junior
4
Senior
4
Director
1
Manager
1
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About ISI

ISI is a privately held firm founded in 2010 and headquartered in Reston, Virginia, with 51–200 employees. It serves defense contractors that must meet federal security and compliance requirements. Services span CMMC and NIST compliance, facility and personnel clearance support, FSO services, digital fingerprinting, and managed IT and cybersecurity. Hiring is concentrated in the United States.

HeadquartersReston, Virginia
Company Size51–200 employees
Founded2010
Hiring MarketsUnited States

Frequently Asked Questions

What tech stack does ISI (isidefense.com) use?

ISI runs a Microsoft-heavy security stack including Azure, Microsoft Sentinel, Defender for Endpoint, Purview, Intune and Entra, plus CrowdStrike, AWS, GCP, Power BI, PostgreSQL, Python and React.

What is ISI Defense working on?

Job posts point to DCSA security reviews, facility clearance sponsorship and lifecycle management, managed security onboarding, cloud migrations to Microsoft GCC, and Power BI deployment in GCC High.

Where is ISI Defense headquartered?

ISI is headquartered in Reston, Virginia, has 51–200 employees, and hires within the United States.

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How this profile is built

ISI's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.