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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 (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

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Crypto and Digital Trust

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The Schellman Blog

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

Tim Campbell

Tim is a Senior Penetration Tester with Schellman where he performs multiple types of assessments, specializing in web application and external network penetration tests. Tim has over ten years of experience in the offensive and defensive security fields. Prior to joining Schellman in 2022, Tim performed penetration tests against companies within the financial, health, and insurance service industries.

Blog Feature

FedRAMP | Penetration Testing

Schellman's Year in Penetration Testing: Key Statistics Revealed

By: Tim Campbell
April 9th, 2025

It's been an exciting past few years for the Schellman penetration testing team. Throughout 2024, our team worked with over 150 clients to support their efforts in securing their businesses. As a lead assessor in the FedRAMP marketplace, Schellman prides ourselves in being able to assess our clients’ systems and helping to identify the vulnerabilities they may have.

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