Security Clearance Guide for Government Contractors
Many of the most valuable government contracts — especially in defense, intelligence, and homeland security — require employees with active security clearances. Understanding how clearances work, who sponsors them, and how to build a cleared workforce is essential for contractors pursuing classified work.
This guide covers clearance types, the investigation process, timelines, facility vs. personnel clearances, and how clearances affect your ability to compete for government contracts.
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Types of Security Clearances
The lowest level of security clearance. Grants access to information that could cause "damage" to national security if disclosed. Confidential clearances are relatively uncommon in the contractor world — most classified work requires at least Secret.
The most common clearance level for defense contractors. Grants access to information that could cause "serious damage" to national security. Most DoD contracts requiring clearances specify Secret. The investigation covers employment history, education, references, criminal records, credit history, and foreign contacts.
Grants access to information that could cause "exceptionally grave damage" to national security. The investigation is significantly more thorough than Secret: investigators interview neighbors, coworkers, and references going back 10 years. Financial records are scrutinized in detail. Polygraph examinations may be required for some programs.
Top Secret with Sensitive Compartmented Information access. SCI is not a clearance level itself — it is an additional access designation layered on top of Top Secret. SCI access is controlled by the intelligence community and compartmented by program. Each SCI program has its own access requirements. Polygraph is commonly required.
Who Needs a Security Clearance?
A security clearance is required for any individual who needs access to classified national security information in the course of their work. In the contracting world, this includes:
- Employees working on classified defense contracts
- IT personnel managing classified networks and systems
- Engineers designing classified weapons systems or platforms
- Analysts processing classified intelligence data
- Facility managers of classified spaces (SCIFs, closed areas)
- Executives and key management personnel of cleared facilities
The clearance level required is determined by the classification level of the information the person will access. Contract solicitations specify the clearance requirements in the DD Form 254 (Contract Security Classification Specification).
Who Sponsors Security Clearances?
You cannot apply for a security clearance on your own. Clearances must be sponsored by an organization with a legitimate need:
Government Agencies
Federal agencies sponsor clearances for their employees and for contractors working on classified contracts. The agency submits the clearance request through their security office, and DCSA (or the intelligence community for SCI) conducts the investigation.
Cleared Contractors
Companies with a Facility Clearance (FCL) can sponsor clearances for their employees who need access to classified information. The contractor's Facility Security Officer (FSO) initiates the process. The company must have a classified contract or subcontract justifying the need.
For contractors, the typical flow is: win a contract requiring clearances, then sponsor your employees for the required clearance level. Some contractors pre-clear employees in anticipation of classified work, but this requires an existing FCL and a justifiable need.
The Investigation Process
Initiation and SF-86 submission
The sponsoring organization initiates the clearance request. The applicant completes Standard Form 86 (SF-86), "Questionnaire for National Security Positions," through the e-QIP system. The SF-86 covers 10 years of personal history including residences, employment, education, foreign contacts, financial records, legal issues, drug and alcohol use, and personal references.
National agency checks
DCSA runs checks against FBI databases, credit bureaus, state criminal records, employment and education records, and other federal agency records. These automated checks identify potential issues that require further investigation.
Field investigation (for Secret and above)
DCSA investigators interview the applicant, references, neighbors, coworkers, and supervisors. For Top Secret, the investigation covers a longer period and includes more extensive interviews. Investigators verify the information on the SF-86 and look for unreported issues.
Adjudication
An adjudicator reviews the completed investigation file and evaluates it against the 13 adjudicative guidelines (allegiance, foreign influence, foreign preference, sexual behavior, personal conduct, financial considerations, alcohol consumption, drug involvement, psychological conditions, criminal conduct, handling protected information, outside activities, and misuse of IT systems). The adjudicator determines whether granting the clearance is "clearly consistent with the national interest."
Determination and notification
The applicant is either granted the clearance or issued a Statement of Reasons (SOR) explaining why the clearance is being denied or revoked. Applicants who receive an SOR can respond in writing and request a hearing before an administrative judge. The vast majority of clearance applications are approved.
Timeline by Clearance Level
| Clearance Level | Investigation Type | Typical Timeline | Reinvestigation |
|---|---|---|---|
| Confidential | Tier 1 | 2-3 months | 15 years |
| Secret | Tier 3 | 4-6 months | 10 years |
| Top Secret | Tier 5 (SSBI) | 6-12 months | 5 years / CE |
| TS/SCI | Tier 5 + SCI adjudication | 9-15 months | Continuous Evaluation |
Timelines shown are averages and can vary significantly based on individual circumstances, investigation backlog, and complexity of the case. Foreign contacts, financial issues, and multiple residences/employers can extend timelines considerably.
Facility Clearance (FCL) vs Personnel Clearance (PCL)
Facility Clearance (FCL)
An FCL is granted to a company, not an individual. It authorizes the facility to receive, store, and work with classified information up to a specified level. Obtaining an FCL requires:
- A classified contract or pre-contract requirement (DD Form 254)
- U.S.-owned and controlled company (FOCI mitigation if foreign owned)
- Cleared key management personnel (KMP)
- Approved Standard Practice Procedures (SPPs)
- Appropriate physical security for the classified level
- A designated Facility Security Officer (FSO)
Personnel Clearance (PCL)
A PCL is granted to an individual employee and authorizes them to access classified information at a specified level. Requirements include:
- Sponsorship by a cleared facility or government agency
- U.S. citizenship (required for most clearances)
- Completion of SF-86 via e-QIP
- Successful background investigation by DCSA
- Favorable adjudication under the 13 guidelines
- Need-to-know for specific classified information
The Chicken-and-Egg Problem
You need an FCL to sponsor employee clearances, but you need a classified contract to get an FCL. The solution: win a classified contract, and the government will sponsor your FCL as part of the contract award process. Alternatively, work as a subcontractor under a cleared prime who can sponsor your facility through the subcontract relationship. The SBA Mentor-Protege program can also help small businesses obtain their first FCL.
How Clearances Affect Contracting Opportunities
Barrier to entry = less competition
Many companies cannot or will not pursue classified work. The clearance requirement eliminates a large portion of potential competitors, resulting in smaller bid pools and higher win rates for cleared contractors.
Higher billing rates
Cleared personnel command a premium in the market. Employees with active Top Secret or TS/SCI clearances typically earn 20-40% more than their uncleared counterparts. This premium flows through to higher contract rates and margins.
Longer contract relationships
Classified contracts tend to be longer-term with option periods. The cost and time of clearing new personnel creates switching costs that favor incumbents. Once cleared and performing, contractors often maintain relationships for decades.
Access to critical programs
The largest and most impactful defense and intelligence programs are classified. Without clearances, you are locked out of the most strategically important government work — and the largest contract values.
Subcontracting leverage
Having cleared personnel makes you a more attractive subcontractor to primes pursuing classified work. If a prime needs cleared staff with specific skills, having them already cleared gives you a significant advantage.
Workforce retention
Employees with clearances are less likely to leave for non-cleared positions because they would lose their active clearance (after 24 months of inactivity). This natural retention mechanism helps maintain workforce stability.
Frequently Asked Questions
Can I get a security clearance on my own?
No. Security clearances can only be sponsored by a government agency or a cleared contractor with a legitimate need. You cannot apply for a clearance independently. The sponsoring organization initiates the process, and the Defense Counterintelligence and Security Agency (DCSA) conducts the investigation.
How long does it take to get a security clearance?
Timelines vary by clearance level and current backlog. As of 2026, typical timelines are: Confidential 2-3 months, Secret 4-6 months, Top Secret 6-12 months, and TS/SCI 9-15 months. Complex cases involving extensive foreign contacts, financial issues, or other adjudicative concerns can take significantly longer.
What disqualifies you from getting a security clearance?
There is no single automatic disqualifier. Adjudicators evaluate the "whole person" under 13 adjudicative guidelines including allegiance, foreign influence, financial considerations, drug involvement, criminal conduct, and personal conduct. Issues like past drug use, financial problems, or foreign contacts do not automatically disqualify you — they are evaluated in context with mitigating factors.
What is the difference between a facility clearance and a personnel clearance?
A Facility Clearance (FCL) is granted to a company/organization authorizing it to access classified information at a specific level. A Personnel Clearance (PCL) is granted to an individual employee. A company needs an FCL before its employees can receive PCLs. The FCL level limits the highest PCL level that can be granted to employees at that facility.
Do security clearances transfer between employers?
Clearances are portable but must be "picked up" by the new employer within 24 months. If you leave a cleared position, your clearance goes into an inactive/deactivated status. A new cleared employer can reactivate it without a new investigation, as long as the gap is under 24 months and the new employer has a legitimate need.
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