Temperature
Qualification
Mapping
Bill Schroeder
Founder & CQV Lead
With 22 years of direct life sciences field experience up to project management, Bill Schroeder founded Nexus Mapping Solutions to deliver ethical, fixed-fee thermal qualification. Grounded in GMP/GDP expectations, ISPE principles, and USP <1079> guidance, Bill provides risk-based temperature mapping and CTU qualification for pharma, biotech, and 3PL organizations. He focuses on practical cold chain execution, delivering audit-ready documentation and transparent, upfront pricing with zero surprise change orders—helping quality managers defend their regulated spaces with confidence.
Owner-Led CQV Expertise
Nexus Mapping Solutions, LLC in San Diego is an owner-led CQV consultancy with 22 years of life sciences experience. We focus on risk-based temperature qualification for cold rooms, warehouses, reefer trucks, and lab equipment, using ISPE and USP guidance, fixed pricing, and on-site support worldwide.
Ethical, Transparent Approach
We built Nexus around a simple idea, clear scope and fixed price. Standardized qualification packages, upfront risk screening, and published assumptions remove surprise change orders, support fast internal approvals, and give QA, regulatory, and facilities teams confidence that cost, method, and documentation will stand up during inspection.
Proven Experience
22 years of CQV practice focused on temperature-controlled environments.
Transparent Pricing
Fixed-price qualification packages with clearly defined scope and assumptions.
Audit Confidence
Inspection-ready reports aligned with ISPE and USP guidance for regulators.