Third-party assurance, handled by people who've graded the answers.
When your customers vet your security, vendor questionnaires, RFIs, audits, the security section of every RFP, the answers can make or break the deal. SubRosa's former auditors help you respond accurately, with the evidence reviewers actually want, so security reviews stop stalling your sales cycle.
Security questionnaires · SIG & CAIQ · RFI / RFP support · Customer audits
What is third-party assurance?
Third-party assurance is the work of demonstrating your security and compliance to the customers, partners, and regulators who vet you as a vendor. In practice, it means responding to security questionnaires like the SIG and CAIQ, RFIs, the security sections of RFPs, and customer audits, with accurate answers and the evidence reviewers expect. Done well, third-party assurance turns security from a deal-blocker into a competitive advantage. SubRosa's former auditors run that process for you, so every review moves faster than the last.
Third-party assurance, end to end.
We stand in as your security team for customer due diligence, from the first questionnaire to final sign-off.
Security questionnaire response
We complete vendor security questionnaires, SIG, CAIQ, and bespoke, accurately and in your voice, so reviewers get answers that hold up instead of red flags.
Evidence & documentation library
We build a reusable library of answers, policies, certifications, and audit reports, so every new questionnaire is faster than the last instead of starting from scratch.
RFI & RFP security support
We answer the security and compliance sections of your RFPs and RFIs, helping you win the deals where security is on the scorecard.
Customer audit & due-diligence support
When a customer wants a call, an audit, or deeper evidence, our former auditors represent your security posture and get you to sign-off.
Reviewers trust former auditors.
We've graded these answers
Our team has sat on the reviewing side of vendor assessments. We know which answers satisfy a reviewer and which ones trigger a follow-up, so we get you to 'approved' faster.
Faster, reusable responses
We turn your responses into a reusable assurance library, so the tenth questionnaire takes a fraction of the time the first one did.
Security that wins deals
Security reviews are a sales gate. We help you clear them quickly and credibly, so security becomes a reason you win, not a reason deals stall.
Your evidence and answers, ready to reuse.
Sable keeps your policies, controls, framework mappings, and evidence in one workspace, so every questionnaire response pulls from a single source of truth instead of a scramble across drives and inboxes.
- Is data encrypted at rest and in transit?Yes · AES-256 / TLS 1.2+ · evidence linked
- Is MFA enforced for all users?Yes · all users · evidence linked
- Do you have a current SOC 2 Type II?Yes · 2026 report · evidence linked
- Pen test within the last 12 months?Yes · Q1 2026 · evidence linked
- Are sub-processors disclosed?Yes · 14 listed · evidence linked
Stop letting security questionnaires stall your deals.
Let's get your next vendor security review handled, accurately, quickly, and with evidence that holds up.