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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.

Leadership Team
In a sea of sameness, we consistently apply our core values to stand apart.
Corporate Social Responsibility
Our B Corp certification underscores our commitment to a more sustainable future for the marketplace, our people, the community, and the environment.
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Join a team of the industry’s most talented individuals at a company where one of our core values is People First.
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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

2025 People & Talent Report

Certificate Directory

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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

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 Privacy Assessments

Microsoft SSPA/DPR 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

Strategic Partnerships

Strategic Partnerships

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The Schellman Blog

Blog Feature

Cybersecurity Assessments | Compliance and Certification | Quantum

Quantum Risk Is Already Here for Data That Must Stay Confidential

By: Avani Desai
October 27th, 2026

My kids think "quantum" is something out of a Marvel movie. And honestly, for a long time, I think a lot of the business world saw it the same way: interesting, a little unsettling, and always about ten years away.

Blog Feature

Cybersecurity Assessments | Quantum

What are the Implications of Post-Quantum Computing on Security and Cryptography?

By: Sully Perella
January 24th, 2024

Like all evolutions in technology, quantum computing promises to revolutionize problem-solving and to do so at speeds that are unimaginable for classic computers we know. However, this technological advancement also poses a significant threat to our current cryptographic systems and algorithms that underpin how the world protects and verifies information.

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