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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

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 (low-to-no team churn = less audit fatigue) mean our clients experience greater continuity and quality.We also understand how distracting unplanned work can be, so we focus on client-centric KPIs to help keep your business moving uninterrupted.

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SOC & Attestations

SOC & Attestations

SOC 1 / SSAE 18 Examination

SOC 2 Examination

SOC 3 Examination

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SOC Essentials for Early-Stage Companies

C5 Attestation

CSA STAR Programs

Payment Card Assessments

Payment Card Assessments

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Privacy Assessments

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Federal Assessments

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FTC Consent Decrees

DoD IL6

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Healthcare Assessments

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Penetration Testing

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Advanced Series

Cybersecurity Assessments

Cybersecurity Assessments

Cloud Configuration Assessments

Ransomware Assessments

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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Leadership Team

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Corporate Social Responsibility

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Strategic Partnerships

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Blog

The Schellman Blog

Stay up to date with the latest compliance news from the Schellman blog.

Will Sparks

Will Sparks is a Senior Associate with Schellman based in Columbus, OH. Prior to joining Schellman in June of 2022, Will was a student at Ohio University studying Business Analytics & Information Systems. Will is now focused on supporting Schellman's SOC 1 and SOC 2 services for organizations across various industries.

Blog Feature

Payment Card Assessments | PCI DSS

Understanding TLS 1.3 Encryption and It’s Role in PCI DSS Compliance

By: Will Sparks
April 22nd, 2025

Transport Layer Security (TLS) is a cryptographic protocol that encrypts data, authenticates connections, and protects the data in transmission. As time passes, new versions of TLS are released to strengthen defenses and maintain an advantage of the constantly evolving threat landscape. Understanding these updates is essential for anyone managing secure systems or handling sensitive data online.

Blog Feature

Working for Schellman: An Early Review from an Auditor

By: Will Sparks
December 8th, 2022

The debate between working for bigger companies or smaller companies is a big topic for a lot of college graduates entering the workforce—I’d know, I was recently one of them. Everyone has their opinion of which way is best before they take the job, and those may or may not change after everyone has spent some time being employed.

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