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Polygraph ServicesCorporate & Business Testing

Corporate & Business Polygraph Services Guide

Corporate polygraph services for fraud investigations, pre-employment screening, and loss prevention. Fully EPPA-compliant with qualified examiners.

Updated July 26, 2026 32 min read Find your nearest office
10,000+Tests conducted worldwide
140+US locations
Same dayVerbal results
up to 95%Single-issue accuracy
What This Test Can Answer

What this test can answer

A polygraph verifies clear statements about specific past events. For corporate & business testing, that means questions like these — each producing a yes or no you can rely on and keep in writing.

01

“Did you authorise or participate in the activity under investigation?”

A documented yes or no

02

“Have you shared confidential company information with any outside party?”

A documented yes or no

03

“Do you know who is responsible for the losses under investigation?”

A documented yes or no

Your actual questions are developed with your examiner during the pre-test consultation and agreed before testing begins, as required by APA §1.6.3. Bracketed details are replaced with the specifics of your case.

Where a polygraph is not the right tool
  • Routine or random screening of US employees (prohibited by the EPPA)
  • Disciplinary action based on a polygraph alone — take legal advice first
  • Testing employees who have not consented voluntarily
  • General "loyalty" or attitude assessments of staff

If you are not sure whether your questions can be tested, ask us before you book — we will tell you honestly if a polygraph is not the right approach.

01 — What Happens on the Day

Your appointment, start to finish

Most examinations take around two hours in total. Here is exactly what happens, and when.

  1. Before the day · freePre-booking consultation

    We confirm your situation suits a polygraph and answer any questions before you commit — no charge, no obligation.

  2. On arrival · 30–45 minPre-test interview

    You review and agree every question with your examiner and give informed consent. There are no surprise questions.

  3. The test · 20–40 minThe examination

    Non-invasive sensors record your respiration, cardiovascular and electrodermal activity while your agreed questions are asked.

  4. Same dayVerbal result

    Your examiner scores the charts and gives you the outcome the same day, in person.

  5. Within 48 hoursWritten report

    A full written report documents the questions, the responses and the examiner’s conclusion.

Every booking includes

  • Free pre-booking consultation and suitability review
  • Question design with your examiner
  • Private, discreet & climate-controlled testing suite
  • Single-issue examination to APA standards
  • Same-day verbal result and written report within 48 hours
  • Strict confidentiality — results shared only with your consent
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02 — Accuracy

How accurate this test is

89%
Average accuracy of single-issue examinations across 38 studies reviewed by the American Polygraph Association.

A polygraph does not read minds. It records the body’s involuntary responses to clearly defined questions, and those responses are scored objectively. The single most important factor in accuracy is keeping the test focused on one specific issue.

That is exactly how we run every examination — a single-issue format, validated question techniques and numerical scoring. Used this way, validated techniques reach up to 95% accuracy in published research.

Single-issue format — the most accurate way to test
Objective, numerical chart scoring — not a judgement call
Every result set out in a full written report

Source: American Polygraph Association — validation research and standards of practice.

03 — When It Is Used

Situations this test resolves

US internal investigations that meet the EPPA ongoing-investigation exemption

Pre-employment screening in EPPA-exempt sectors (security, armored transport, pharmaceuticals)

UK workplace investigations conducted with written employee consent

This test is always voluntary — everyone examined must agree to attend. It verifies specific past actions, not feelings or future intentions. Unsure whether your situation fits? Ask us before you book.

04 — Confidentiality & Standards

How we protect your confidentiality

This is a private matter. Here is how we protect it — and how we hold the examiner to a standard.

Strictly confidential

Your appointment and your result are private. Nothing is shared with anyone — not even the person being tested — without your explicit consent.

Discreet, controlled setting

Testing takes place in a private, climate-controlled suite by appointment only — never a rushed or public setting, which also protects the accuracy of the result.

Examiners trained to APA standards

Every examiner we assign is trained to American Polygraph Association standards, uses validated techniques and is vetted before we work with them. How we vet examiners.

A result in writing

You receive a full written report documenting the questions, the responses and the examiner’s conclusion — an independent record you can keep and rely on.

Booking through us means a vetted examiner, a documented method and a deposit that is credited to your test and transferable with 48 hours’ notice — not an unknown name found online. Talk to us first if anything is unclear.

Frequently Asked Questions

Common questions about this test

Can any employer use polygraph testing?

No. The Employee Polygraph Protection Act (EPPA) restricts most private employers from using polygraph tests [11]Verified Employee Polygraph Protection Act (Full Text)
Confirms EPPA provisions including exemptions for security firms, pharmaceutical companies, ongoing investigation requirements, $10,000 penalty per violation, and employee rights
. Fully exempt employers include federal, state, and local government agencies, private security and armoured car firms, and pharmaceutical manufacturers/distributors [11]Verified Employee Polygraph Protection Act (Full Text)
Confirms EPPA provisions including exemptions for security firms, pharmaceutical companies, ongoing investigation requirements, $10,000 penalty per violation, and employee rights
. However, any private employer may request polygraph testing during a specific investigation into economic loss — such as theft, embezzlement, or sabotage — provided they meet strict requirements including documented reasonable suspicion and proper written notice to the employee [11]Verified Employee Polygraph Protection Act (Full Text)
Confirms EPPA provisions including exemptions for security firms, pharmaceutical companies, ongoing investigation requirements, $10,000 penalty per violation, and employee rights
.

Can we test job applicants before hiring?

Only EPPA-exempt employers may use pre-employment polygraph screening [11]Verified Employee Polygraph Protection Act (Full Text)
Confirms EPPA provisions including exemptions for security firms, pharmaceutical companies, ongoing investigation requirements, $10,000 penalty per violation, and employee rights
. This includes government agencies, private security firms, armoured car companies, and pharmaceutical companies with employees who would have direct access to controlled substances [11]Verified Employee Polygraph Protection Act (Full Text)
Confirms EPPA provisions including exemptions for security firms, pharmaceutical companies, ongoing investigation requirements, $10,000 penalty per violation, and employee rights
. A survey by the APA Research Center found that 62% of large U.S. police agencies maintained active polygraph screening programmes [8]Verified About the APA — American Polygraph Association
Confirms APA states examiners can attain accuracy rates exceeding 90%, and that APA represents more than 2,800 examiners worldwide
. Our examiners verify your exemption status and ensure full procedural compliance before any pre-employment testing begins.

How accurate is corporate polygraph testing?

The APA's 2011 meta-analysis of 38 studies found that single-issue diagnostic testing — the format typically used in corporate investigations — produces an aggregated decision accuracy of 89% with a confidence interval of 83%–95% [7]Verified Polygraph Validity Research — Meta-Analytic Survey
Confirms APA 2011 meta-analysis found 89% accuracy for single-issue testing (CI 83%–95%), 87% overall accuracy across all validated techniques
. The APA states that through strict adherence to training and education standards, examiners can attain accuracy rates exceeding 90% [8]Verified About the APA — American Polygraph Association
Confirms APA states examiners can attain accuracy rates exceeding 90%, and that APA represents more than 2,800 examiners worldwide
. The APA's Standards of Practice require evidentiary examination techniques to demonstrate accuracy of 90% or greater [9]Verified APA Standards of Practice
Confirms evidentiary techniques require 90%+ accuracy, investigative techniques require 80%+ accuracy, max 5 tests per day, 90-minute minimum
.

Do you offer on-site testing at our premises?

Yes. For businesses testing multiple employees or candidates, we arrange on-site testing at your premises. This minimises disruption, ensures privacy, and allows batch testing of multiple subjects during a single visit. On-site testing is particularly advantageous for incident response situations where speed is essential and for ongoing corporate programmes where regular testing is scheduled.

What does corporate testing cost?

We offer competitive rates with volume pricing for multi-test programmes and ongoing corporate contracts. Costs vary based on the number of subjects, testing location, and programme scope. Call 844-643-8916 for a confidential corporate quote tailored to your organisation's specific needs. Visit our pricing page for general information.

Can employees refuse the polygraph test?

Yes. Even where testing is legally permitted under EPPA, employees retain the right to refuse. Under the Act, employees cannot be terminated or disciplined solely for refusing a polygraph [11]Verified Employee Polygraph Protection Act (Full Text)
Confirms EPPA provisions including exemptions for security firms, pharmaceutical companies, ongoing investigation requirements, $10,000 penalty per violation, and employee rights
. They must be informed of this right before testing begins. Employees also have the right to terminate the test at any time, to consult with legal counsel before and during the examination, and to review all questions before the test begins [11]Verified Employee Polygraph Protection Act (Full Text)
Confirms EPPA provisions including exemptions for security firms, pharmaceutical companies, ongoing investigation requirements, $10,000 penalty per violation, and employee rights
.

What are the penalties for EPPA non-compliance?

Employers who violate EPPA may face civil penalties of up to $10,000 for each violation [15]Verified Employee Polygraph Protection Act — American Polygraph Association
Confirms $10,000 penalty per EPPA violation, examiner requirements, and procedural compliance checklists for employers and examiners
. Employees may also bring private civil lawsuits seeking remedies including employment reinstatement, promotion, payment of lost wages, and attorney's fees [15]Verified Employee Polygraph Protection Act — American Polygraph Association
Confirms $10,000 penalty per EPPA violation, examiner requirements, and procedural compliance checklists for employers and examiners
. The Secretary of Labor can bring enforcement actions, and courts may issue temporary or permanent restraining orders. Some sources suggest inflation-adjusted penalties may now reach $25,000 per violation [13]Verified Employee Polygraph Protection Act — Executive Protection Group
Confirms EPPA history, penalties up to $25,000 per violation (inflation-adjusted), and that the law was signed June 27, 1988 by President Reagan
. Given these significant consequences, proper EPPA compliance guidance is essential before any workplace testing.

How quickly can you respond to an incident?

For active investigations, we offer priority scheduling with availability typically within 24–48 hours. Multiple subjects can be tested at the same location on the same day to minimise disruption. This rapid response capability is critical because the ACFE reports that fraud losses average $9,900 per month, meaning every week of delay increases potential losses [2]Verified Occupational Fraud 2024: A Report to the Nations
Confirms organisations lose 5% of revenue to fraud annually, median loss $145,000 per case, $3.1 billion total losses across 1,921 cases studied
. Reports are delivered within 48 hours of the examination.

Are polygraph results legally defensible?

Yes. Our testing follows APA methodology with full EPPA procedural compliance, comprehensive documentation, and proper chain-of-custody protocols designed for legal defensibility in employment proceedings, arbitrations, and court proceedings. Our examiners are also available for expert testimony if your case requires it. Testimony fees are quoted separately.

What types of questions are asked during corporate testing?

Questions are tailored for each specific context — pre-employment, investigation, or compliance — and developed in collaboration with your HR and legal teams. Investigation questions focus on the specific incident under review, such as involvement in theft of particular items or funds, sharing confidential information, or policy violations. All questions are reviewed with the examinee before the examination, as required by EPPA [11]Verified Employee Polygraph Protection Act (Full Text)
Confirms EPPA provisions including exemptions for security firms, pharmaceutical companies, ongoing investigation requirements, $10,000 penalty per violation, and employee rights
.

Where can I book a lie detector test near me?

LieDetectorTest.com offers professional polygraph testing at 140+ locations across 23 states: New York (24), California (20), Florida (19), New Jersey (18), Colorado (13), Connecticut (8), Georgia (7), Nevada (6), North Carolina (5), South Carolina (5) and more. All examiners are trained to APA standards. Find your nearest location.
Other Test Types

Other polygraph services we provide

Testing for a situation not listed here? Private lie detector tests cover most personal matters, or contact us to discuss your case.

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