NDNB Assurance Auditor Profile

NDNB Assurance (NDNB, also operating under the NDB brand) is a nationally focused compliance audit firm based in Atlanta, Georgia, founded in part by former Arthur Andersen and BDO Seidman auditors and led by CPA Christopher Nickell. The firm has performed regulatory compliance audits since the era of the legacy SAS 70 standard, transitioning its practice through SSAE 18 to today's AICPA SOC framework.

NDNB delivers SOC 1, SOC 2, and SOC 3 examinations — including scoping and readiness assessments — plus PCI DSS assessments and HIPAA compliance audits, and is known for publishing fixed-fee pricing rather than open-ended quotes.

The firm best serves startups and small-to-midsize service organizations, particularly first-time SOC 2 clients who want predictable costs and a readiness-through-report path from a single national provider.