Precision You Can Trust. Care You Can Feel. Testing, Screening, Wellness & Compliance Solutions for Families, Professionals & Organizations
Quantum Diagnostic Solutions LLC offers accurate, confidential, and community-centered diagnostic and compliance services across Illinois and Missouri. Visit our Granite City location or schedule a mobile appointment within our 50-mile service radius.
About Us
Precision, Confidentiality, and Excellence in Testing & Compliance
Quantum Diagnostic Solutions LLC provides premium diagnostic, screening, and compliance services for individuals, families, legal professionals, healthcare organizations, and businesses across diverse industries.
We specialize in delivering accurate results, streamlined compliance support, and a superior client experience — ensuring every service is handled with the utmost care, discretion, and integrity.
Service Availability:
- In-Office: Granite City, IL
- Mobile and Concierge: Illinois & Missouri (within 25-mile radius)
Note: Additional fees apply for mobile services based on travel distance and service type.
Services
Explore Our Main Service
DNA Testing
We provide a full range of accurate and court-admissible DNA testing services for legal, personal, and health-related needs — including family relationships, inheritance, and pet lineage.
Drug & Alcohol Testing
Our drug and alcohol testing services meet both DOT and non-DOT standards, helping employers, individuals, and legal professionals maintain compliance and safety.
Health Screening & Wellness
Promoting prevention and healthy living, we offer lab testing and panels for early detection, weight loss, hormonal balance, aging, and overall wellness.
Background Screening & Employment
We help employers and individuals with secure, compliant pre-employment and identity verification services, including fingerprinting and background checks.
Notary Services
Our notary team offers in-office and mobile services for a wide range of legal documents, including estate forms, real estate closings, and international apostilles.
Compliance & DOT Consortium
We support employers with turnkey compliance programs, DOT consortium services, and workforce safety training to meet regulatory standards.
Alcohol testing
"coming soon"
breath testing
"coming soon"
Why Choose Us
Where Accuracy Meets Advocacy
We lead with care, precision, and integrity. As a minority woman-owned business, we are committed to serving diverse communities with inclusive, respectful, and culturally competent service. Whether at our office or through mobile services, we aim to make your testing and compliance experience smooth and secure.
We would love to hear from you ...
Quantum Diagnostic Solutions LLC offers accurate, confidential, and community-centered diagnostic and compliance services across Illinois and Missouri. Visit our Granite City location or schedule a mobile appointment within our 50-mile service radius.