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Zero Day CPA
- Licensed CPA firm — can issue (sign) a SOC 2 report
- AICPA peer review: Enrolled · 2023-01-01 to 2023-12-31 · View AICPA record →
Zero Day CPA is a specialist SOC 2 audit firm in Troy, MI, USA that charges $7K–$10K for Type II audits with 4–6 week fieldwork-to-report timelines. Founded in 2020, they hold 2 accreditations and specialize in Technology, Healthcare (HIPAA), SaaS, and 5 more. Their pricing is below average compared to the specialist average of $20.6K–$61.2K.
Free. Anonymous until you pick.
How Much Does Zero Day CPA Charge for SOC 2?
Estimated Type 1 and Type 2 ranges, placed against the broader specialist peer set. Numbers are directional; final pricing depends on scope, Trust Services Criteria, evidence quality, and observation period.
- Type I Cost
- $5K–$7K
- Type II Cost
- $7K–$10K
- Timeline
- 4–6 wk
- Team Size
- 25-30
- Report Delivery
- Fast turnaround, reports delivered ahead of deadlines (e.g. a SOC 2 Type 1 delivered in 16 days)
- Response Time
- 24/7 on-call auditors, responsive over Slack with replies often within minutes; client support in English, Spanish, and Arabic
Type II Pricing Position
Note: Pricing shown is estimated based on typical engagements. Use our SOC 2 cost calculator for a personalized estimate.
Timeline: The 4–6 week figure is the audit fieldwork-to-report window once evidence is ready, not the full engagement. A SOC 2 Type II also requires an observation period, typically 3–12 months depending on scope, before that window begins.
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- Pricing context
- 99%
- Timeline context
- 27%
- Certifications
- 2
of Specialist firms charge more for Type II.
of Specialist firms have longer minimum timelines.
listed certifications. Tier average: 4.
Compare Zero Day CPA with Similar Specialist Firms
Side-by-side pricing, timeline, and certification counts for the closest-priced peers in the specialist tier.
| Zero Day CPA | Consilium Labs | Tempo Audits | Thoropass | Johanson Group | Modern Assurance | |
|---|---|---|---|---|---|---|
| Type II Cost | $7K–$10K | $9.6K–$16.3K | $10K–$30K | $12K–$30K | $15K–$30K | $7K–$42K |
| Type I Cost | $5K–$7K | $6.75K–$13.5K | $8K–$20K | $8K–$15K | $10K–$18K | $5K–$24K |
| Timeline | 4–6 wk | 2–6 wk | 2–6 wk | 2–6 wk | 1–3 wk | 1–7 wk |
| Team Size | 25-30 | 11–50 | 5–15 | 200–250 | 12–20 | 2–10 |
| Certifications | 2 | 4 | 1 | 8 | 4 | 3 |
| Founded | 2020 | 2020 | 2022 | 2019 | 2014 | 2022 |
Zero Day CPA Industry Fit
For buyers in Technology and Healthcare (HIPAA), Zero Day CPA fits the specialist profile when timeline (4–6 weeks) and Type II pricing ($7K–$10K) align with what specialist firms typically deliver.
Who Should Hire Zero Day CPA?
Startups and growing SaaS, healthcare, and fintech companies (1–100 employees) needing a first-time SOC 2 or HIPAA audit fast and affordably across AWS, Azure, or GCP, with in-house penetration testing, vCISO support, and flexible payment terms
What Makes Zero Day CPA Different?
Boutique CPA firm built for startups: the full SOC 1/SOC 2/SOC 3, ISO 27001, HITRUST, and HIPAA stack plus in-house penetration testing and vCISO services, running hundreds of audits a year with a ~30-person team. Co-founded by President & CPA Lance Samona and CTO Patrick Sesi, a Drata Advanced Alliance Member rated 5.0 across 15 reviews, known for the fastest turnaround in the industry, 24/7 support, and flexible payment terms
Is Zero Day CPA Right for You?
- You need an affordable first SOC 2 audit (starting from $7K)
- You're in healthcare and need HIPAA-aware auditors
- You're a SaaS company going through SOC 2 for the first time
- You already use Vanta, Drata, Secureframe, Sprinto, TrustCloud and want an auditor who integrates with it
- You want a firm that focuses primarily on SOC 2 and compliance audits
of 5 criteria match. Get a personalized quote
Industries served
Works with these GRC platforms
About Zero Day CPA
Zero Day CPA, PC is a boutique CPA and cybersecurity firm headquartered in Troy, Michigan, founded in 2020. With a team of roughly 25-30 professionals across the United States, the firm runs hundreds of audits a year and has built its practice around one thing: getting startups and growing cloud companies through their first SOC 2 or HIPAA audit fast, affordably, and without the overhead of a large regional firm.
Zero Day is a licensed CPA firm and AICPA member, a Drata Advanced Alliance Member, and rated 5.0 across 15 verified reviews on the Drata Auditor Directory. The firm serves clients in English, Spanish, and Arabic, operates with 24/7 on-call auditors, and positions itself as a multi-framework one-stop shop: a company that needs SOC 2 now and ISO 27001 or HITRUST later can run everything through the same team. It is co-founded by President & CPA Lance Samona and CTO Patrick Sesi. Named and reviewed clients include SCYTHE, Realfinity, Refyne Tech, Campus Tree, Health Hive, ViaPeople, Housing Cloud, Fluent Finance, Comulate, and Paidwell.
Enterprise-Grade Security, Built for Startups
The pitch Zero Day makes to founders is direct: enterprise-grade audit rigor at startup-friendly pricing, with the fastest turnaround in the industry and flexible payment terms when cash timing is tight.
The firm works primarily with companies in the 1-100 employee range, and the majority of its engagements are startups — first-time SOC 2 buyers on AWS, Azure, or Google Cloud who need a clean report on a deadline that is usually tied to a customer or investor commitment. Zero Day prices, scopes, and staffs around that buyer rather than treating it as a smaller version of an enterprise engagement.
That focus shows up in the experience: a dedicated auditor per engagement, communication over Slack with replies often within minutes, and readiness assessments for first-time clients to identify and remediate control gaps before fieldwork begins. The firm also offers fractional and virtual CISO (vCISO) services, so companies that need ongoing security leadership alongside the audit can keep it under one roof.
Compliance Frameworks
Zero Day covers a broad framework set for a firm its size:
SOC Reports: SOC 1 (Type 1 and Type 2), SOC 2 (Type 1 and Type 2), SOC 3.
ISO and Security Standards: ISO/IEC 27001 and HITRUST.
Privacy and Healthcare: HIPAA / HITECH security and risk assessments — a core competency given the firm’s healthcare and health-tech client base.
Offensive Security: In-house penetration testing using both automated and manual methods across servers, workstations, wireless networks, web and mobile applications (iOS, Android, Windows), and social engineering. API security testing follows OWASP API Security Top 10, and web application review follows OWASP Top 10 and SANS Top 20 guidelines.
GRC and Business Support: Compliance-as-a-service, policy development, and vendor risk management for teams that want a long-term compliance partner rather than a one-off attestation.
Zero Day’s published focus is SOC, ISO 27001, HITRUST, and HIPAA. Buyers needing FedRAMP, StateRAMP, CMMC, or PCI DSS QSA work should confirm scope directly in the first conversation.
GRC Platform Integrations
Zero Day works with every major compliance automation platform used by startups:
Drata: Zero Day is a Drata Advanced Alliance Member. Reviewers specifically cite the team’s deep familiarity with the Drata platform as the reason evidence requests moved quickly — the firm knows the system as a practitioner, not just a partner.
Vanta and Secureframe: Full evidence-collection partnerships; the firm works closely with both day to day.
Sprinto and TrustCloud: Supported for teams outside the Drata/Vanta ecosystem.
Thoropass, OneTrust, and Apptega: Also supported.
Zero Day does not push a proprietary GRC platform. It sits on top of whatever tool the client already uses, which avoids forcing a platform change as part of the audit.
Pricing
Unlike most firms, Zero Day provides firm-quoted ballpark pricing. These are starting points for typical, single-cloud SaaS scopes; a multi-cloud or multi-system environment will run higher, and final pricing follows a scoping call.
1-50 employees:
- SOC 2 Type 1: approximately $5,000
- SOC 2 Type 2: approximately $7,000
- Type 1 + Type 2 bundle: approximately $10,000
51-100 employees:
- SOC 2 Type 1: approximately $7,000
- SOC 2 Type 2: approximately $10,000
- Type 1 + Type 2 bundle: approximately $14,000
A rush fee of roughly 25% applies to expedited (ASAP) engagements. Payment terms are flexible — for seed-stage teams where cash timing matters, this is worth raising in the first conversation. These numbers place Zero Day at the affordable end of the credentialed-CPA market, well below the typical first-time SOC 2 spend.
Timeline
Zero Day’s stated turnaround is 4-6 weeks from kickoff to final report — top-tier among CPA firms doing SOC 2 work, where a 3-4 month timeline is common and slippage is frequent. Client reviews back this up: one SaaS client reports receiving a final SOC 2 Type 1 report within 16 days of first engaging the firm, evidence requests included. Companies whose enterprise sales cycles depend on delivering a SOC 2 report by a specific date are the firm’s natural fit.
The Engagement Process
Zero Day runs a five-step engagement: an initial consultation to define scope, timelines, and expectations; in-depth control analysis with gap-bridging strategies; regular progress communication; iterative report drafting with client feedback; and a final delivery and review session. Readiness and gap assessments are offered when needed, which matters most for first-time clients who do not yet know where their control gaps are.
Leadership
Lance Samona is President and the firm’s named CPA, co-founder of Zero Day CPA, PC.
Patrick Sesi is Co-Founder & CTO, and the primary contact for new business and partnerships.
Jaime Guri is Account Relationship Manager, supporting client engagements.
Reviewers also single out individual auditors by name — one early-stage client highlighted working with Andrew Paterson over a four-month engagement, citing replies “within minutes.” For a firm of this size, that named, repeat praise for line-level auditors is a strong signal of consistent client experience.
Client Experience and Testimonials
“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… Highly recommend Zero Day to any SaaS company pursuing SOC 2 attestation.” — SCYTHE (via Drata Auditor Directory, March 2026)
“Over four months I worked closely with Andrew Paterson, and he was amazing. He always responded to my questions within minutes, which was incredibly helpful.” — Early-stage startup, first SOC 2 audit (via Drata Auditor Directory, February 2026)
“Their team was able to deliver the final SOC 2 Type 1 report for our company within 16 days of first engaging with them — even including requests for more evidence.” — SaaS client (via Drata Auditor Directory, October 2025)
The pattern across reviews is consistent: speed, responsiveness, and a calm hand for first-time buyers who find the process confusing. The firm holds a 5.0 rating across 15 reviews on the Drata directory.
Who Should Choose Zero Day
Best fit for:
- Startups and growing SaaS, fintech, healthcare, and AI companies (1-100 employees) pursuing a first-time SOC 2 Type 1 or Type 2
- Founders who need speed (4-6 weeks), startup-friendly fixed pricing, and flexible payment terms
- Companies on AWS, Azure, or Google Cloud already using Drata, Vanta, Secureframe, Sprinto, or TrustCloud
- Teams that want SOC 2 plus HIPAA, ISO 27001, HITRUST, penetration testing, or vCISO support handled by one firm
- Healthcare and health-tech companies handling PHI that need HIPAA and SOC 2 together
- Buyers who value responsive, 24/7 support and service in English, Spanish, or Arabic
Confirm scope first if you need:
- FedRAMP, StateRAMP, or CMMC
- PCI DSS Level 1 QSA work at hyperscale
- A Big Four or Top 25 firm name on the report for investor or SEC optics
Contact & Links
Office Locations
Compliance Frameworks Offered
Platform Integrations
Client Testimonials
"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."
"This was the first SOC 2 audit our company had to go through. As an early-stage startup, we found the process confusing and time-consuming. Zero Day CPA helped throughout to ensure our journey was as smooth as possible. Over four months I worked closely with Andrew Paterson, and he was amazing — he always responded to my questions within minutes, which was incredibly helpful."
"Their team was able to deliver the final SOC 2 Type 1 report for our company within 16 days of first engaging with them — even including requests for more evidence. This allowed us to meet a client's deadline with extra time to spare."
Industries, certifications, and platforms.
Tags below are preserved as crawlable text because they drive industry, accreditation, and GRC-platform comparisons across firm pages.
What Industries Does Zero Day CPA Serve?
8 industries. Specialist average: 6.
What Certifications Does Zero Day CPA Hold?
2 certifications. Specialist average: 4.
What Platforms Does Zero Day CPA Integrate With?
Audit Platform
Flexible remote/onsite delivery across AWS, Azure, and Google Cloud
Zero Day CPA SOC 2 Audit FAQ
Firm-specific answers generated from the directory record and preserved in FAQPage schema.
How much does a SOC 2 audit from Zero Day CPA cost?
Zero Day CPA SOC 2 Type I audits typically range from $5K to $7K. Type II audits range from $7K to $10K. This is below average for specialist firms — the specialist tier average is $20.621K–$61.184K. Final pricing depends on your organization's scope, number of trust service criteria, and system complexity.
How long does a SOC 2 audit take with Zero Day CPA?
The 4–6 week range is Zero Day CPA's audit execution and report-delivery window once evidence is available. It is the fieldwork-to-report window, not the full engagement. A SOC 2 Type II also requires an observation period, typically 3–12 months depending on scope, before that window begins, while a Type I is a point-in-time assessment with no observation period. Actual timelines depend on readiness, scope, and evidence availability.
What industries does Zero Day CPA specialize in?
Zero Day CPA has deep expertise in Technology, Healthcare (HIPAA), SaaS, B2B, Cloud Services, Fintech, AI Startups, MSPs. They are best suited for Startups and growing SaaS, healthcare, and fintech companies (1–100 employees) needing a first-time SOC 2 or HIPAA audit fast and affordably across AWS, Azure, or GCP, with in-house penetration testing, vCISO support, and flexible payment terms
What accreditations does Zero Day CPA hold?
Zero Day CPA holds 2 accreditations: AICPA, CPA Firm.
What audit platform does Zero Day CPA use?
Zero Day CPA uses Flexible remote/onsite delivery across AWS, Azure, and Google Cloud for their audit engagements. They integrate with Vanta, Drata, Secureframe, Sprinto, TrustCloud for evidence collection and compliance automation. Reports are delivered via Fast turnaround, reports delivered ahead of deadlines (e.g. a SOC 2 Type 1 delivered in 16 days).
Is Zero Day CPA a good SOC 2 auditor?
Zero Day CPA is a specialist SOC 2 audit firm founded in 2020 with 6 years of experience. Boutique CPA firm built for startups: the full SOC 1/SOC 2/SOC 3, ISO 27001, HITRUST, and HIPAA stack plus in-house penetration testing and vCISO services, running hundreds of audits a year with a ~30-person team. Co-founded by President & CPA Lance Samona and CTO Patrick Sesi, a Drata Advanced Alliance Member rated 5.0 across 15 reviews, known for the fastest turnaround in the industry, 24/7 support, and flexible payment terms They are best suited for organizations that need technology, healthcare (hipaa), saas expertise.
Where is Zero Day CPA located?
Zero Day CPA is headquartered in Troy, MI, USA. They also have offices in Troy, MI (HQ), Distributed US-based team (remote delivery). They serve clients across the United States and can conduct SOC 2 audits remotely.
How does Zero Day CPA compare to other specialist SOC 2 auditors?
Compared to the 67 specialist firms in our directory, Zero Day CPA's Type II pricing ($7K–$10K) is below average (tier average: $20.621K–$61.184K). They hold 2 certifications vs. the tier average of 4. Their minimum timeline of 4 weeks is comparable to the tier average.
Who should hire Zero Day CPA for a SOC 2 audit?
Zero Day CPA is best suited for Startups and growing SaaS, healthcare, and fintech companies (1–100 employees) needing a first-time SOC 2 or HIPAA audit fast and affordably across AWS, Azure, or GCP, with in-house penetration testing, vCISO support, and flexible payment terms Their key differentiator is: Boutique CPA firm built for startups: the full SOC 1/SOC 2/SOC 3, ISO 27001, HITRUST, and HIPAA stack plus in-house penetration testing and vCISO services, running hundreds of audits a year with a ~30-person team. Co-founded by President & CPA Lance Samona and CTO Patrick Sesi, a Drata Advanced Alliance Member rated 5.0 across 15 reviews, known for the fastest turnaround in the industry, 24/7 support, and flexible payment terms
Questions to Ask Zero Day CPA Before Hiring
A buyer-side checklist. Bring these to your first call — the answers separate firms that have run hundreds of SOC 2 engagements from firms that are bidding on them.
- Your team is sized at 25-30. How many auditors will be assigned to my engagement, and who is the engagement lead — a partner, a senior manager, or a staff auditor?
- You quote 4–6 weeks. What pushes a project to the longer end of that range, and what does "audit-ready on day one" look like to you?
- Your Type II range is $7K–$10K. What's included at each end, and what scope changes would push pricing above the top of that range?
- You integrate with Vanta, Drata, Secureframe. If our team uses a different GRC tool, what's the evidence-handoff process and does it change your fee?
- Who reviews and signs the report on your side — is that a partner-level CPA, and how involved are they during fieldwork versus only at sign-off?
- How do you handle subservice carve-outs (e.g., AWS, GCP, Azure) versus inclusive subservice organizations when defining our scope?
- When you find an issue mid-audit, what's your remediation cadence — same-day flagging, weekly checkpoints, or an end-of-fieldwork rollup?
- Do you have surge windows (e.g., Q4 financial-year close) when start dates slip, and how far in advance do we need to lock the engagement to avoid them?
Get a quote from Zero Day CPA
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