About Us
Trusted Experts in Utility Auditing and Cost Recovery
Precision Audits. Proven Results.
National Auditing Services & Consulting (NASC) is a trusted energy accounting and auditing firm specializing in utility bill audits and cost recovery. We help businesses identify and secure refunds from past overpayments while reducing ongoing costs across electric, gas, water, sewer, oil, steam, and telecommunications invoices.
With utility expenses ranking among the largest—and most overlooked—operating costs, NASC provides the focused attention this critical area deserves. Many companies rely on surface-level reviews of their utility bills, often missing complex errors or billing discrepancies buried in the fine print. Our expert team goes deeper, applying proven strategies and data-driven analysis to uncover savings that typical internal audits often overlook. In a time of rising costs, our mission is simple: protect your bottom line by making sure you’re not overpaying for the essentials.
Why NASC?
Audit Expertise
Our deep experience helps identify overcharges and reduce future costs
All Business Sizes
We work with companies large and small across all industries
Customer Support
We’re here to answer your questions anytime
Risk-Free Audits
If we don’t find savings or refunds, you owe nothing
