What Is an FSO and Do You Really Need One?

Understanding the role of a Facility Security Officer and when outsourcing makes sense

If your organization works with the Department of Defense or handles classified information, chances are you’ve heard the term FSO — or Facility Security Officer. But many small businesses still aren’t clear on what the FSO is responsible for, when the role is required, or if outsourcing it is a smart move.

In this blog, we break down the FSO’s role, federal requirements, and how to decide if outsourcing your FSO could save you time, money, and stress.

1. What Is an FSO?

An FSO is a designated individual responsible for implementing and overseeing a facility’s industrial security program.

The role is required for companies that are part of the National Industrial Security Program (NISP) — typically contractors who hold or need to access classified information.

The FSO ensures the company remains compliant with the NISP Operating Manual (NISPOM) and all related DoD security requirements.

2. Core Responsibilities of an FSO

An FSO handles a wide range of security-related duties, including:

  • Maintaining personnel security clearances (e.g., coordinating with DISS)

  • Submitting visit requests and managing classified contracts

  • Conducting security briefings, training, and annual refreshers

  • Managing and updating security documentation, SOPs, and records

  • Reporting and responding to incidents or suspicious activity

  • Ensuring compliance with facility clearance requirements

  • Preparing for and responding to Defense Counterintelligence and Security Agency (DCSA) inspections

3. When Is an FSO Required?

You need a formally designated FSO if:

  • Your organization holds a Facility Clearance (FCL)

  • You work on contracts that involve access to classified information

  • You’re part of a prime or subcontract that requires personnel security management

The FSO is a mandatory role — not optional — for any company operating within the cleared defense contractor space.

4. Do Small Businesses Need a Full-Time FSO?

  • For many small to mid-sized contractors, having a full-time, in-house FSO is not cost-effective.

  • The workload might not justify a dedicated position — but the compliance requirements still apply.

  • That’s where outsourced FSO services come in.

Outsourcing gives you:

  • Access to experienced, credentialed FSO support

  • On-call guidance and DISS/NISS support

  • Custom SOPs, briefing templates, and reporting help

  • Preparation for DCSA reviews without hiring additional staff

The FSO is a critical role for any cleared contractor. But that doesn’t mean you need to do it alone. Whether you're just starting the clearance process or managing multiple contracts, having the right security partner can make all the difference.

Outsourcing your FSO responsibilities to a team like GSec LLC means fewer headaches, stronger compliance, and more time to focus on your mission.

Need Help Managing Your Facility Security Program?

GSec LLC offers flexible, experienced FSO support for small businesses and defense contractors.