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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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About Us

About Us

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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In a sea of sameness, we consistently apply our core values to stand apart.
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We’re proud to collaborate with a diverse set of providers while remaining steadfast in our commitment to impartiality and independence.

Schellman's 2025 People & Talent Report

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SOC & Attestations

SOC & Attestations

SOC 1 / SSAE 18 Examination

SOC 2 Examination

SOC 3 Examination

SOC for Supply Chain

SOC for Cybersecurity

SOC Essentials for Early-Stage Companies

C5 Attestation

CSA STAR Programs

Payment Card Assessments

Payment Card Assessments

PCI DSS Validation

PCI SSF

PCI P2PE Validation

PCI PIN Assessments

PCI 3DS Compliance

ISO Certifications

ISO Certifications

ISO 27001

ISO 42001

ISO 27701

ISO 9001

ISO 22301

ISO 20000-1

ISO 14001

ISO 45001

ISO 50001

Privacy Assessments

Privacy Assessments

Global CBPR & PRP Certification

GDPR Assessment

International Privacy Assessments

US State Privacy Assessments

Microsoft SSPA/DPR Assessment

FERPA Assessment

EU Cloud Code of Conduct

Federal Assessments

Federal Assessments

FedRAMP®

CMMC / NIST SP 800-171

FISMA/NIST

ITAR

CJIS

IRAP

FTC Consent Decrees

DoD IL6

Healthcare Assessments

Healthcare Assessments

HITRUST Certification

HIPAA Compliance

HIPAA Express

EPCS-DEA Audits

Health Data Host (HDS) Certification

Penetration Testing

Penetration Testing

Application

Network

Mobile

Red Teaming

Social Engineering

Cloud

Physical

Hardware and IoT

Advanced Services

AI Red Teaming

Cybersecurity Assessments

Cybersecurity Assessments

Cloud Configuration Assessments

Ransomware Assessments

NIST Cybersecurity Framework Assessments

Schellman Software Security Assessment (S³A)

TISAX®

SWIFT Customer Security Programme

Internal Audit Co-Sourcing

MTCS Certification

ENS Certification

Crypto and Digital Trust

Crypto and Digital Trust

Schellman Training

Schellman Training

Sustainability Services

Sustainability Services

AI Governance

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About Us

About Us

Leadership Team

Leadership Team

Corporate Social Responsibility

Corporate Social Responsibility

Careers

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Strategic Partnerships

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The Schellman Blog

Matthew Gierl

Matthew Gierl is a Senior Associate with Schellman. Prior to joining the firm in February of 2018, Matthew worked as a IT Risk Consultant specializing in SOC 1 and SOC 2 testing. As a Senior Associate with Schellman, Matt is now focused primarily on helping organizations across various industries achieve different ISO certifications.

Blog Feature

Artificial Intelligence | ISO 42001

ISO 42001: The Importance of Knowing Your Role Before Building Your AI System

By: Matthew Gierl
June 17th, 2026

ISO/IEC 42001:2023 is the first international standard for an Artificial Intelligence Management System (AIMS). Structured similarly to other ISO management system standards, like ISO 27001, with mandatory clauses 4 through 10 and an Annex A control set, it shares the same Plan-Do-Check-Act logic familiar to any management system practitioner.

Blog Feature

ISO Certifications

What are the ISO 22301 Requirements?

By: Matthew Gierl
January 9th, 2024

ISO 22301 is structured much like other ISO management system standards, featuring introductory clauses (1–3) alongside its core requirement clauses (4–10). Of these, Clause 8 (Operation) is the linchpin of standing up a Business Continuity Management System (BCMS) and achieving ISO 22301 certification.

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