Insights

Security Focus Six3Systems operates in defense and space with emphasis on Cyber Security, Intelligence Surveillance and Reconnaissance, and Biometrics and Identity Intelligence, signaling strong potential for cybersecurity, ISR, and identity solutions engagements with federal agencies and defense contractors.

Fiscal Scale Annual revenue is in the lower mid-range for defense prime-like firms, indicating room to upsell managed services, advanced analytics, and mission-critical software support to expand contract value with federal customers.

Boutique Team With a lean employee base (11-50), Six3Systems may be highly agile, offering opportunities for scalable, targeted services, rapid onboarding, and customized solutions for niche federal programs.

Tech Stack Current technologies include MySQL, PHP, React, Apache, and cloud-ready components, suggesting opportunities to modernize legacy systems, enhance data analytics capabilities, and integrate with cloud-native platforms in defense workloads.

Growth Signals The presence in Tysons, Virginia and alignment with federal customers implies potential for expanded program wins, partnerships, and teaming arrangements with larger defense contractors to pursue larger R&D, ISR, and cyber security programs.

Six3Systems Tech Stack

Six3Systems uses 8 technology products and services including RSS, React, Really Simple Discovery, and more. Explore Six3Systems's tech stack below.

  • RSS
    Content Management System
  • React
    Javascript Frameworks
  • Really Simple Discovery
    Miscellaneous
  • Priority Hints
    Performance
  • PHP
    Programming Languages
  • Apache HTTP Server
    Web Servers
  • Apache
    Web Servers
  • Sitelinks Search Box
    Web Tools And Plugins

Six3Systems's Email Address Formats

Six3Systems uses at least 1 format(s):
Six3Systems Email FormatsExamplePercentage
FLast@harding-security.comJDoe@harding-security.com
89%
First.Last@harding-security.comJohn.Doe@harding-security.com
11%

Frequently Asked Questions

What is Six3Systems's official website and social media links?

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Six3Systems's official website is harding-security.com and has social profiles on LinkedIn.

How much revenue does Six3Systems generate?

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As of July 2026, Six3Systems's annual revenue is estimated to be $1M - $10M.

What is Six3Systems's SIC code NAICS code?

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Six3Systems's SIC code is 3761 - Guided Missiles and Space Vehicles NAICS code is 336414 - Guided Missile and Space Vehicle Manufacturing.

How many employees does Six3Systems have currently?

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As of July 2026, Six3Systems has approximately 38 employees across 3 continents, including North AmericaAsiaEurope. Key team members include Sigint Collection Manager: L. W.Senior Software Developer Lead: M. C.Assistant City Manager: T. P.. Explore Six3Systems's employee directory with LeadIQ.

What industry does Six3Systems belong to?

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Six3Systems operates in the Defense and Space Manufacturing industry.

What technology does Six3Systems use?

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Six3Systems's tech stack includes RSSReactReally Simple DiscoveryPriority HintsPHPApache HTTP ServerApacheSitelinks Search Box.

What is Six3Systems's email format?

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Six3Systems's email format typically follows the pattern of FLast@harding-security.com. Find more Six3Systems email formats with LeadIQ.

When was Six3Systems founded?

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Six3Systems was founded in 2009.
Six3Systems logo

Six3Systems

Defense and Space ManufacturingVirginia, United States11-50 Employees

Six3 Systems operates in the national security and defense sector, delivering mission-critical solutions and services to federal customers. The company concentrates on three core areas within the federal government—cyber security, intelligence surveillance and reconnaissance, and biometrics and identity intelligence.

Based in Tysons, Virginia, the firm positions itself as a small provider serving intelligence agencies, the Department of Defense, and civilian government bodies. Its offerings are designed to support secure networks, intelligence collection, and identity assurance for federal programs. Within the defense and space manufacturing landscape, the company is characterized by its specialized focus on federal mission areas rather than broader commercial markets.

Section iconCompany Overview

SIC Code
3761 - Guided Missiles and Space Vehicles
NAICS Code
336414 - Guided Missile and Space Vehicle Manufacturing
Founded
2009
Employees
11-50

Section iconFunding & Financials

  • $1M - $10M

    Six3Systems's revenue is estimated to be in the range of $1M - $10M

Section iconFunding & Financials

  • $1M - $10M

    Six3Systems's revenue is estimated to be in the range of $1M - $10M

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