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Schellman began as a SOC audit firm 20+ years ago. While we still issue more than 2,000 SOC reports each year, our clients’ trust has propelled our expansion. Today, we offer nearly 60 types of audits and assessments.

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Schellman is the only Top 50 CPA firm focused exclusively on IT Compliance and Cybersecurity, and we’re the #1 service provider for FedRAMP Assessments. Our industry-leading NPS scores, client retention, and employee retention mean our clients experience greater continuity and quality.

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SOC & Attestations

SOC & Attestations

SOC 1 / SSAE 18 Examination

SOC 2 Examination

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Payment Card Assessments

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ISO Certifications

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Privacy Assessments

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DoD IL6

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Healthcare Assessments

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Cybersecurity Assessments

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NIST Cybersecurity Framework Assessments

Schellman Software Security Assessment (S³A)

TISAX®

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Crypto and Digital Trust

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Schellman Training

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The Schellman Blog

Andrew Parks

Andrew Parks is a Manager on the Advisory and Assurance team at risk3sixty, specializing in Payment Card Industry (PCI) and CMMC compliance. He has served as a PCI Qualified Security Assessor (QSA) for more than five years and previously held the role of PCI Internal Security Assessor (ISA), bringing his total PCI experience to over a decade. More recently, Andrew has obtained the CMMC certification of Registered Practitioner (RP).Andrew leverages a strong technical background in his work as both a PCI QSA and CMMC advisor. He holds certifications in cloud technologies and Kubernetes (KCNA), enabling him to effectively support clients operating in complex technical environments to achieve and maintain compliance.

Blog Feature

Federal Assessments | CMMC

A Practical Guide to CMMC Compliance, Implementation, and Certification

By: Andrew Parks
April 28th, 2026

The Cybersecurity Maturity Model Certification (CMMC) has officially shifted from proposed framework to an enforceable requirement for organizations supporting the U.S. Department of Defense (DoD). With the Final Rule now in effect and contractual mandates accelerating, defense contractors and subcontractors can no longer treat CMMC as a future initiative.

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