Advanced Alliance Member
Zero Day CPA, PC
Troy, MI, United States of America
Resources
Ideal Client Size
- SMB (1-300 FTE)
- Mid Market (301-1,000 FTE)
- Enterprise (1,000+ FTE)
Industry Specialization
- Construction
- Cryptocurrency
- Finance and Insurance
- Government
- Healthcare
- Hospitality
- Manufacturing
- Privacy
- Real Estate
- Retail
- SaaS
- Start-ups
- Technology
- Transportation
Regions Covered
- United States
- Canada
- United Kingdom
- Western Europe
- India
- Africa
- Asia
- Australia
- Caribbean
- Central America
- South America
- Mexico
- Eastern Europe
Supported Languages
- English
Additional Services Offered
- Penetration Testing
Frameworks Supported
- SOC 1 Type 1
- SOC 1 Type 2
- SOC 2 Type 1
- SOC 2 Type 2
- ISO 27001 - Internal
- HIPAA
- SOC 3
About Zero Day CPA, PC
SOC 1 | SOC 2 | HIPAA | Penetration Testing
Zero Day is a premier provider of audit and penetration testing solutions catering to small, medium, and large-sized B2B, SaaS, and various other types of companies across the globe.
Why Choose Us
- Expert auditors and state-of-the-art compliance technology for rapid SOC 2 compliance.
- Fastest turnaround time in the industry for reporting and communication.
- 24/7 on-call auditors for immediate responses to inquiries.
- Comprehensive, streamlined IT & compliance attestation services.
- Unwavering commitment to security, safety, and client trust.
- Strengthen customer trust and accelerate revenue generation with Zero Day's dependable compliance solutions.
- Unparalleled client service and employee growth opportunities through people-centric technology and core values.
- Tailored audit practices to suit individual client needs.
- First-time SOC 2 audit clients benefit from Readiness Assessment to identify and remediate control gaps.
- Certified penetration testers for in-depth organizational security assessments.
- Combination of automated and manual methods to evaluate servers, workstations, wireless networks, and web applications, as well as security awareness and facility controls.
- API security risk evaluation based on OWASP API Security Top 10 guidelines.
- Flexible network penetration testing approaches: comprehensive or targeted.
- Expertise in traffic capture, code analysis, and exploiting vulnerabilities in iOS, Android, and Windows applications.
- Proprietary and custom web application development weaknesses identification and assessment.
- Manual review of web application vulnerabilities per OWASP Top 10 and SANS Top 20 guidelines.
- Detailed wireless infrastructure analysis utilizing innovative tools and exclusive tactics.
- Custom-built assessments to meet your organization's unique goals and requirements.
- Advanced social engineering tactics to uncover human-factor security vulnerabilities within your organization.
- Flexible payment terms for client convenience.
Clients
Reviews
Write a review
First SOC2 Audit
Aug 06, 2026
Zero Day CPA was a pleasure to work with. Since this was our initial SOC 2 audit, there was understandable anxiety on our part. The Zero Day team made the entire process smooth, ensuring we always knew what to expect and when. Their communication was always clear and timely, and they were consistently responsive whenever we had questions. They did an excellent job guiding us through each step as first-time participants. Our audit was completed professionally, on time, and exactly as explained.
Rigorous, responsive SOC 2 Type II partner that understood our CRA context
Jun 30, 2026
Zero Day CPA conducted our SOC 2 Type II examination and delivered an unqualified opinion. As an FCRA-regulated consumer reporting agency, we needed an auditor who understood our control environment and the regulated buyers we serve. The entire team was thorough, communicative, and practical throughout. Their Drata Advanced Alliance experience made evidence collection smooth. Responsive to questions, clear on remediation, and genuinely invested in getting it right. Recommended.
Outstanding SOC 2 Types 1 and 2 audits with Zero Day CPA!
Jun 24, 2026
From our first interaction a couple of years ago until our most recent SOC 2 engagement, I've been impressed wtih the Zero Day team and wouldn't hesitate to recommend them.
Zero Day CPA made our SOC 2 Type 2 journey straightforward and stress-free
Mar 30, 2026
Zero Day CPA was instrumental in helping SCYTHE successfully complete our SOC 2 Type 2 assessment. Their deep familiarity with the Drata platform meant evidence requests were handled quickly and efficiently. They provided clear, practical guidance throughout the entire process — exactly what a small team needs when navigating a rigorous audit for the first time. Highly recommend Zero Day to any SaaS company pursuing SOC 2 attestation.
Working with Zero Day CPA was great and very proffessional
Feb 22, 2026
A great pleasure working with Zeroday CPA
Very responsive and professional
Feb 11, 2026
This was the first SOC 2 audit our company had to go through. As an early-stage startup, we found the process confusing, time-consuming, and, at times, frustrating. Zero Day CPA helped throughout the process to ensure our journey was as smooth as possible. Over the last four months, I worked closely with Andrew Paterson, and he was amazing. He always responded to all my questions in a timely manner—usually within minutes—which was incredibly helpful. I would highly recommend Zero Day CPA to any