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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 delivered by full-time employees. No outsourcing. No compromises.

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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 (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

SOC for Supply Chain

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C5 Attestation

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Payment Card Assessments

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Microsoft SSPA/DPR Assessment

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EU Cloud Code of Conduct

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Federal Assessments

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FTC Consent Decrees

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Healthcare Assessments

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Penetration Testing

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Cybersecurity Assessments

Cybersecurity Assessments

Cloud Configuration Assessments

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NIST Cybersecurity Framework Assessments

Schellman Software Security Assessment (S³A)

TISAX®

SWIFT Customer Security Programme

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Crypto and Digital Trust

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Schellman Training

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Mathieu Legendre

Mathieu is a Manager with Schellman, based in New York City, NY. Prior to joining Schellman in 2021, Mathieu worked for an accounting company, specializing in compliance and anti-corruption regulations. Before arriving in the US in 2016, Mathieu worked as an attorney in France, specializing in public law and consumer law-related matters. Mathieu also led and supported various other projects, including real estate projects and writing a World War I non-fiction book. Mathieu has over 15 years of experience comprised of serving clients in various industries, including financial services, construction, and government. Mathieu is now focused primarily on privacy for organizations across various industries.

Blog Feature

My Adoption Story with Mathieu Legendre

By: Mathieu Legendre
November 18th, 2022

As you may or may not know, November is Adoption Awareness Month. Like parenthood in general, adoption is a journey, but in some ways, it’s still considered a unique way to go—after all, your starting point in adopting a child is completely different from the alternative ways of becoming a parent. But that’s what makes it so special, and it’s why I wanted to write this. To celebrate Adoption Awareness, I want to share my own experience with adoption.

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