Confidential Testing & Screening Services for Individuals and Employers
Professional specimen collection and rapid testing services for individuals, employers, legal cases, and immigration requirements. We provide confidential, accurate, and compliant testing with fast turnaround times. Mobile testing available in the Houston area.
Fast Results
Rapid testing and lab confirmations available for individuals and employers.
Confidential Testing
All testing services follow strict privacy and compliance standards.
Mobile Testing Available
On-site drug and alcohol testing available for businesses and events.
DOT & Non-DOT Testing
​Certified specimen collection for workplace, legal, and personal testing.
How Our Testing Process Works
Simple, confidential testing in four easy steps.
Steps 1
Schedule Appointment
Book your testing service online or contact us to schedule a convenient appointment time.
Step 3
Sample Collection
Specimens such as urine, saliva, breath, fingerprints, or cheek swabs are collected depending on the service requested.
Step 2
Verify Identification
Bring a valid government-issued ID and/or Employee ID. Our certified collector verifies identity before specimen collection.
Step 4
Receive Results
Rapid tests provide results within minutes, while laboratory tests are processed by accredited partner laboratories.
About Us
ProofLine Testing Group provides professional drug testing, DNA testing, fingerprinting, and compliance services for individuals, employers, and organizations throughout the Houston area.
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We specialize in confidential testing, certified specimen collection, and workplace compliance programs including DOT drug and alcohol testing.
Who We Serve
• Employers and workforce programs
• Transportation and logistics companies
• Construction and trade companies
• Staffing agencies
• Legal and family court cases
• Individuals needing personal testing
Certified & DOT-Compliant Testing You Can Trust
Professional testing services performed with strict compliance standards and accredited laboratory partnerships.
Certified Specimen Collectors
Trained professionals performing compliant specimen collections.
Accredited Laboratory Partners
​Testing performed through certified laboratory partners.
DOT Compliant Procedures
DOT drug and alcohol testing conducted according to federal guidelines.
Professional Documentation
All testing includes proper documentation suitable for legal, employment, and compliance purposes.
Our Testing Services
Professional testing services for individuals, employers, and legal requirements.
Drug & Alcohol Testing
DOT and Non-DOT drug and alcohol testing services for individuals, employers, and workplace compliance.
Rapid Health Testing
Fast screening services including respiratory panels and pregnancy testing.
DNA Testing
Legal and personal DNA testing through accredited partner laboratories.
Mobile testing available for businesses and job sites in the Houston area.
Our Partners
ProofLine Testing works with accredited laboratory partners to provide reliable and compliant testing services. Laboratory analysis is performed by certified facilities that meet federal and industry standards.
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This allows us to provide accurate results for drug testing, DNA testing, and other screening services while maintaining strict chain-of-custody procedures.
Contact Us
Serving Houston and surrounding areas. Mobile testing available for businesses and job sites.
Address
363 N Sam Houston Parkway E
Houston, Texas 77060
4th Floor
Contact
Phone: 346-684-0685
Fax: 346-326-6035
Opening Hours
Mon - Wed
8:00 am – 5:00 pm
Thu
8:00 am – 7:00 pm
Fri
8:00 am – 5:00 pm
Sat
10:00 am - 4:00 pm
​Sun
By Appointment only
Request Testing or Contact Our Team
