A pentest report lists what the testers broke. What a SOC 2 Type 2 auditor asks next is what happened to each finding: when it was fixed, and who confirmed the fix worked. ISO 27001 surveillance audits ask the same thing every year. The answer comes from remediation testing, where the testers go back after your team ships a fix and re-run the original attack to see if it still works.
Retest terms differ from one provider to the next, in how long the window runs, how many retests are included, and what document you get at the end. This guide compares five US-based companies that include retesting in their packages and support compliance audits, and explains which kind of company each one suits best. CYBRI’s guide on how remediation testing supports SOC 2 Type 2 and ISO 27001 explains the audit side in more depth.
The five companies on this list:
- CYBRI: best for SaaS companies that want gray box testing, remediation support through a 90-day window, and an updated report mapped to SOC 2 and ISO 27001
- Triaxiom Security: best for companies that want a straightforward project with one retest built into every quote
- Raxis: best for teams that want to follow findings and fix progress live in a portal, with retesting on every engagement
- Cobalt: best for product teams that run compliance through a platform and want a long retest window
- Red Sentry: best for teams that want a quick-start pentest with a retest and an attestation letter included
Why Retesting Matters for Compliance
Retests sound like a small add-on at the end of a pentest. For a company working through SOC 2 Type 2 or ISO 27001, they produce much of the evidence an auditor reviews. The four points below explain why the retest terms deserve as much attention as the test itself.
Type 2 Auditors Follow Findings Across the Window
A SOC 2 Type 1 report looks at your controls on a single date. A Type 2 report covers an observation period, usually 3 to 12 months, and the auditor samples evidence from across it. If your pentest found a high-rated flaw in month two, the auditor can pick that finding months later and ask for the ticket, the change that fixed it, and proof that someone checked the fix. A dated retest result answers that last request. A gap there can become an exception in the report every enterprise buyer reads during vendor review.
ISO 27001 Asks Whether Fixes Worked
ISO 27001 doesn’t require a pentest by name. Its clause on corrective action (10.2) still expects a company to fix problems, find their cause, and then review whether the fix was effective. A pentest finding fits that pattern closely, and the retest is the review. The certificate runs for three years with an audit in each year between, so the auditor also sees whether the same finding comes back. A repeat finding reads as a fix that didn’t hold.
A Closed Ticket Isn’t a Verified Fix
Engineers close tickets when they believe the problem is solved. Sometimes the fix covers the exact page the tester used and leaves the same flaw open on the page next to it. Sometimes a filter blocks the tester’s specific input while the weakness underneath stays put. Only someone re-running the attack can tell the difference, and only a report from that person gives an auditor something to check.
Retest Terms Differ From Package to Package
Two quotes for the same app can include very different retest terms. Some packages include one retest within a set window. Others allow unlimited retests across a subscription, or cover only critical and high findings. What you get at the end differs too: an updated report, an attestation letter, or a status change in a portal. The guide to remediation testing covers the questions to ask before signing.
How These Companies Were Chosen
Every company on this list met these requirements:
- US headquarters, for contracts, data handling, and time zones
- Retesting included in the package, stated in writing on the company’s own site
- Compliance-ready output, with reports, attestation letters, or both, that support SOC 2 and ISO 27001
- People confirm the findings, even when automation helps with discovery
- Focused on testing. Each company tests rather than audits, so the evidence comes from a different firm than the one issuing your SOC 2 report or ISO 27001 certificate
- An established testing practice with a public track record
The 5 Best Penetration Testing Companies With Remediation Testing in 2026
1. CYBRI
Best for: SaaS companies that want gray box testing, remediation support through a 90-day window, and an updated report mapped to SOC 2 and ISO 27001
CYBRI is a New York penetration testing company that has worked mainly with SaaS companies since 2017. Its senior, US-based testers hold the OSCP certificate and test manual-first. Gray box testing is the default: the testers get a login for every user role in scope and start where an attacker with a stolen or phished password would. That’s where the access-control flaws auditors and buyers care most about tend to sit, and it gives the retests something real to verify.
Remediation testing is included in the quote. After the report, the same testers stay available while your team fixes, retest each finding once it’s ready, and send back anything only partly fixed. On compliance work, the remediation window runs 90 days. Critical issues are flagged the same day, ahead of the report.
The window closes with an updated report showing each finding’s original severity and final status. Reports have a plain-language summary for leadership and the auditor, technical findings scored with CVSS 4.0 (the standard severity scale), and mapping to SOC 2, ISO 27001, PCI DSS, HIPAA, and GDPR. CYBRI doesn’t issue SOC 2 reports or ISO certificates, so the evidence stays independent of your auditor. On ongoing programs, the Blue Box dashboard keeps findings and retests from every test in one place.
2. Triaxiom Security
Best for: companies that want a straightforward project with one retest built into every quote
Triaxiom Security is a penetration testing firm based in Charlotte, North Carolina. Its retest policy is easy to plan around: a one-time retest within 90 days of the assessment is included in every penetration test quote, so there’s no separate order to place once fixes are in. Triaxiom keeps the window to 90 days so the retest happens while the environment still looks the way it did during the original test.
Each engagement follows a clear sequence, from scoping and kickoff through active testing, quality review, and a walkthrough of the report. Web app tests cover both the logged-out and logged-in parts of a site. Triaxiom suits companies that want a defined project with a known start and finish, and a retest already in place before the audit.
3. Raxis
Best for: teams that want to follow findings and fix progress live in a portal, with retesting on every engagement
Raxis is an Atlanta penetration testing firm whose tests are done by hand by senior US-based engineers. Remediation retesting is part of every engagement: once your team fixes a finding, Raxis tests it again to confirm the fix holds.
The Raxis One portal shows the work as it happens. Findings appear once they’re confirmed, along with proof-of-concept demonstrations, and remediation tracking follows each one through to the retest. Raxis lists support for SOC 2, ISO 27001, PCI DSS, and HIPAA, among other frameworks. It fits teams that want engineers to see each finding and its status as the test runs, without waiting for the final report.
4. Cobalt
Best for: product teams that run compliance through a platform and want a long retest window
Cobalt runs penetration tests through its own platform and is one of the early names in penetration testing as a service (PTaaS), where testing is bought and managed as an ongoing program. Companies buy testing with credits and spend them on web apps, APIs, cloud, or other assets as needs come up.
Every Cobalt pentest includes free retesting of individual findings for 6 or 12 months, which gives teams with longer fix cycles room to work. Findings connect to tools such as Jira and GitHub, and an integration with Vanta brings pentest results into that compliance platform. Cobalt provides attestation reports for frameworks including SOC 2, ISO 27001, PCI DSS, and HIPAA. It suits product teams that already manage compliance through a platform and want testing to plug into the same workflow.
5. Red Sentry
Best for: teams that want a quick-start pentest with a retest and an attestation letter included
Red Sentry is an Atlanta penetration testing company that pairs a testing platform with human ethical hackers. Tools speed up discovery, and OSCP- and OSEP-certified testers verify each vulnerability by safely exploiting it. Scoping can happen the same day, which helps when an enterprise prospect won’t sign until they see a third-party report.
A free retest is part of every pentest: once your team patches a finding, Red Sentry verifies the fix at no extra cost. Findings show up on a live dashboard as they’re found, with proof of concept and fix steps, and the engagement ends with a PDF report and an attestation letter to hand to auditors or customers. Red Sentry lists SOC 2 Type II, ISO 27001, and PCI DSS among the frameworks its reports support. It suits smaller teams that want testing, a retest, and the letter in one package.
How to Choose a Pentest Partner for Compliance Retesting
All five companies include retesting, and each package is built a little differently. Use these points to compare quotes side by side:
| Criteria | What to look for |
| Retest window | How long you have to fix and request a retest. Make sure it fits your Type 2 period or ISO audit date. |
| Number of retests | One retest, several in a window, or unlimited. More than one lets the record show steady progress. |
| Which findings get retested | All findings, or only critical and high. Ask before signing. |
| What you get afterward | An updated report showing each finding’s final status, an attestation letter, or both. Ask which one your auditor wants to see. |
| Login-level coverage | Testers who log in as each user role (gray box), where access-control flaws tend to hide. |
| Framework mapping | Findings tied to SOC 2 criteria and ISO 27001 controls, so your compliance lead doesn’t do it by hand. |
| Help while fixing | Testers who answer engineers’ questions during the window, which means fewer failed retests. |
| Independence | A testing firm separate from your SOC 2 auditor or ISO certification body, if you want the evidence and the review kept apart. |
Match the terms to your audit calendar. A company opening its first Type 2 window needs the retests finished inside that period. A company with ISO 27001 needs the updated report ready before each yearly audit.
Final Thoughts
Each company on this list does strong retest work, and the right one depends on how your team fixes things and what your auditor needs to see. For a SaaS company heading into a SOC 2 Type 2 window or an ISO 27001 audit, CYBRI is the strongest fit. Its testers start from a real user’s login, stay on hand while fixes go in, retest the fixes inside the 90-day window, and finish with an updated report mapped to both frameworks. A short scoping call is enough to plan the test around your audit dates, so contact CYBRI to get started.
Frequently Asked Questions
Is a retest required for SOC 2 or ISO 27001?
Neither framework names a retest. SOC 2 Type 2 auditors look for evidence that findings were fixed and checked during the observation period, and ISO 27001 asks companies to review whether corrective actions worked. A retest report is the clearest way to show both.
How long should a retest window be?
Long enough for your team to fix the critical and high findings and still finish inside your audit period. Windows on this list range from 90 days to 12 months, so check the exact terms in each quote. For a Type 2 audit, what matters most is that the retests are dated inside the observation period.
Is an attestation letter enough for an auditor?
It helps, especially for showing a customer that testing happened. Auditors reviewing findings often want more detail: what was found, when it was fixed, and the retest result for each one. An updated report gives them that, so ask for one even if a letter is included.
Ready to Plan Your Retests Around the Audit?
CYBRI runs manual, gray box penetration tests with remediation testing included in the quote, a retest inside the 90-day remediation window, and an updated report mapped to SOC 2 and ISO 27001. Learn more about SOC 2 penetration testing or contact CYBRI for a quote.
