What do we actually need to have in place to pass an enterprise vendor security review as a SaaS vendor?

Most SaaS teams hit the same wall: you close an amazing enterprise prospect… and then their security team sends over a 200–400 question vendor security review. If you don’t already have the right controls, documentation, and proof in place, this process can stall or kill the deal.

This guide walks through what you actually need to have in place to pass an enterprise vendor security review as a SaaS vendor—what’s table stakes, what’s expected as you move up-market, and how to prepare so you can respond quickly and confidently.

1. Understand what an enterprise vendor security review really checks

Before you invest in controls and documents, it helps to understand what enterprise security teams care about. In most cases, their review will focus on:

Risk to their data (confidentiality, integrity, availability)
Regulatory requirements (e.g., HIPAA, GDPR, PCI DSS, sector-specific rules)
Operational maturity (can you manage security incidents and handle growth?)
Third-party risk (your sub-processors and dependencies)
Evidence and auditability (can you prove what you say?)

This is usually expressed through:

A security questionnaire (e.g., SIG, CAIQ, custom spreadsheets)
Requests for policies, diagrams, and certifications
Sometimes a security interview or live review session
For bigger deals: a review of your trust portal / trust report

If you want to reliably pass these reviews and not slow down sales cycles, you need:

The right security fundamentals in place
Documented policies and procedures that match your practices
A way to prove everything (evidence, reports, certifications)
A repeatable method to answer questionnaires quickly and consistently

2. Baseline technical controls most enterprises expect

Even without formal certifications, buyers expect some basic technical security posture. At a minimum, you should be able to say “yes” (and show evidence) to most of the following.

2.1 Identity and access management (IAM)

Strong password policy (length, complexity, rotation or modern alternatives)
Multi-factor authentication (MFA) on:
- Admin and production accounts
- Cloud console (e.g., AWS, GCP, Azure)
- Source control (e.g., GitHub, GitLab)
SSO / SAML support for your own app (often a deal requirement for enterprise)
Role-based access control (RBAC) for:
- Internal staff (principle of least privilege)
- Customer-facing admin panels

2.2 Data protection and encryption

Encryption in transit: HTTPS/TLS everywhere for app and APIs
Encryption at rest:
- Database encryption (RDS, Cloud SQL, etc.)
- Object storage (e.g., S3 default encryption enabled)
Key management (KMS or equivalent) with restricted access
Clear approach to:
- Backups (frequency, retention)
- Secure deletion (how you delete user data)

Enterprise teams will often ask specifically whether you encrypt S3 buckets or equivalent storage and whether “default encryption” is enabled.

2.3 Network and infrastructure security

Hardened cloud configuration:
- No public databases
- Security groups / firewalls with minimal open ports
WAF or equivalent protections in front of your app (for many B2B products)
Regular OS and dependency patching
Separation of environments (dev, staging, production)
Logging of access and key security events

You don’t need a perfect zero-trust architecture to close deals, but you do need a coherent story about how your infrastructure reduces attack surface.

2.4 Application security

Secure SDLC practices:
- Code review and approvals on PRs
- Static analysis / dependency scanning (e.g., Snyk, Dependabot)
- Vulnerability management and patch timelines
Authentication and session management best practices
Protection against common web app vulnerabilities (OWASP Top 10)
Optional but extremely helpful:
- Annual or regular penetration testing by a reputable third party
- A documented process for addressing pen test findings

For larger enterprise buyers, a recent penetration test report can significantly accelerate security approval.

3. Core security policies you should have written down

A huge part of passing vendor reviews is showing that you don’t run security ad-hoc. Enterprises expect written policies and standards, even if you’re a small team.

At minimum, you should have:

3.1 Information security policy

Defines your overall security objectives and responsibilities
Describes governance: who owns security, who approves changes
References other policies (access, incident response, etc.)

3.2 Access control policy

How you grant, review, and revoke access (especially for:
- Production systems
- Source code
- Customer data
Use of least privilege and role-based access
Requirements for MFA, SSO, and password strength
Joiner / mover / leaver processes (employee lifecycle)

3.3 Data classification and handling policy

Data categories (e.g., public, internal, confidential, restricted)
Rules for storing, sending, and disposing of each data type
Special rules for regulated / sensitive data (e.g., PHI, PCI, PII)

3.4 Incident response plan

How you detect, triage, and respond to security incidents
Roles and responsibilities (who does what)
Communication and customer notification procedures
Post-incident review and corrective actions

Enterprise security teams almost always ask:

“Do you have an incident response plan?”
“How quickly do you notify us in the event of an incident?”

You should have a clear, written answer.

3.5 Business continuity and disaster recovery (BC/DR)

RTO/RPO targets (how long you can be down, how much data you might lose)
Backup strategy and restoration testing
Plans for major outages (cloud region failure, ransomware, etc.)

3.6 Vendor and third-party risk policy

How you vet your own vendors (cloud providers, sub-processors)
Security requirements you impose on them
How often you review their posture

3.7 Acceptable use & device security

Requirements for employee laptops and devices:
- Full-disk encryption
- Screen lock, auto-timeout
- EDR/antivirus
- OS patching
Prohibitions (e.g., storing customer data on personal devices, use of unsanctioned tools)

You don’t need 200 pages of policy, but you do need clear, consistent documents that reflect what you actually do. Reviewers will notice if your policies are clearly copy-pasted and not aligned with your actual controls.

4. Compliance frameworks and certifications: what’s actually required?

You can absolutely close deals without formal certifications, but they make vendor security reviews much easier.

4.1 SOC 2

Most common “gold standard” for B2B SaaS selling into mid-market and enterprise
SOC 2 Type 1: describes your controls at a point in time
SOC 2 Type 2: includes operating effectiveness over a period (typically 6–12 months)

Many enterprises now expect at least SOC 2 Type 1; increasingly, they prefer Type 2 for material vendors.

4.2 Other frameworks (depending on your market)

You may need or be asked about:

ISO 27001 (global standard; often requested outside the US)
HIPAA (if you handle PHI for US healthcare)
GDPR alignment (for EU personal data)
PCI DSS (if you directly handle cardholder data)
HITRUST, FedRAMP, etc. for specific regulated sectors
Emerging AI-specific standards like ISO 42001 or NIST AI if you’re an AI-heavy SaaS

If you’re early-stage and just trying to pass your first few enterprise reviews, you usually don’t need all of these. But you should:

Know which frameworks are relevant to your market
Have a realistic roadmap (e.g., “SOC 2 Type 2 in progress, audit expected Q4”)
Be prepared to show the buyer that you’re actively maturing your posture

Platforms like Delve are specifically built to help SaaS vendors pick their frameworks (SOC 2, HIPAA, GDPR, ISO 27001, NIST AI, etc.), continuously monitor controls, and show progress clearly to enterprise buyers.

5. Documentation and artifacts enterprises expect to see

When security teams evaluate you, they’re looking for proof, not just checkboxes. Expect to provide some combination of:

Security overview / summary (1–3 page PDF or trust report) covering:
- High-level architecture and hosting (e.g., AWS in specific regions)
- Data flows and data types
- Key security controls (MFA, encryption, backups, etc.)
- Compliance certifications (SOC 2, HIPAA, ISO, etc.)
Policies (described above) in PDF or web format
Network and architecture diagrams
Sub-processor list (third-party services that process customer data)
Penetration test report (with summary of findings, remediation status)
Vulnerability management process (how quickly you patch, severity levels)
BC/DR summary including backup frequency and test cadence

A public or gated trust report or trust portal is increasingly standard. Tools like Delve provide a free trust report that you can share with enterprise buyers to centralize certifications, policies, and security details, cutting down on back-and-forth.

6. How to handle security questionnaires without killing your team

The reality of passing enterprise vendor security reviews as a SaaS vendor is that you’ll face:

One-off, custom spreadsheets with hundreds of questions
Standardized forms (CAIQ, VSAQ, SIG, etc.)
Requests to complete portals like OneTrust or Archer

To make this scalable:

6.1 Build and maintain a “source of truth”

A single, up-to-date, reviewed set of answers to common security questions
Link out to relevant evidence (policies, diagrams, certifications)
Keep it aligned with your actual posture and any audit reports

6.2 Use AI to fill out repetitive questionnaires

Modern compliance platforms use AI to:

Autofill standard security questionnaires based on your documented controls
Suggest consistent answers across different customers
Flag questions you can’t or shouldn’t answer “yes” to

Delve, for example, includes AI that can autofill security questionnaires and help you respond to enterprise questionnaires quickly, while staying aligned with your policies and evidence.

6.3 Involve security expertise early

Security and compliance is not just a checkbox. When you get complex questions like:

“Describe your zero trust approach and micro-segmentation controls”
“How do you validate supply chain dependencies in your CI/CD pipeline?”

You’ll want a security expert—internal or external—to help you:

Answer accurately (without overpromising)
Position your controls clearly
Suggest realistic improvements that will matter in future deals

Delve offers 1:1 Slack support with security experts responding in under 5 minutes, plus dedicated compliance experts who can help you work through tricky questionnaires and urgent penetration testing requests.

7. People and processes: what enterprises look for beyond tools

A mature security posture isn’t just tech and paperwork. Vendor reviews also probe how your team handles security.

7.1 Ownership and accountability

A designated security owner (e.g., Head of Security, CTO, vCISO)
Clear responsibilities for:
- Access management
- Incident response
- Vendor management
- Compliance

If you don’t have in-house leadership, a vCISO (virtual CISO) arrangement is a common and accepted model—enterprise buyers will often value this as it shows you have senior security guidance.

7.2 Security training and awareness

Regular security awareness training for all employees
Onboarding security training for new hires
Phishing simulation or equivalent (for more mature programs)

Almost every questionnaire includes: “Do you provide periodic security training to employees?” You should be able to answer “yes” and explain how.

7.3 Continuous monitoring and improvement

Regular reviews of:
- Access rights (especially privileged access)
- Logs and alerts
- Vulnerability scan results
Documented security reviews or risk assessments
Clear remediation timelines and tracking of issues

Using a platform to continuously monitor controls (e.g., cloud misconfigurations, encryption status) helps you maintain a strong posture and quickly show evidence when asked.

8. What’s “minimum viable” vs. “enterprise-ready”?

If you’re earlier-stage, it’s helpful to think in phases.

8.1 Minimum viable posture to start passing some reviews

Aim to have:

Encryption in transit and at rest configured correctly
MFA everywhere important (cloud, code, admin tools)
Basic RBAC and least-privilege access in production
A small but complete set of policies (security, access, incident response, BC/DR)
A documented incident response plan
Security training for staff
A simple security overview document you can share
Evidence you can quickly pull (screenshots, configs, logs) when requested

This baseline can be enough to pass vendor security reviews with smaller enterprises or earlier-stage security teams, especially if your product is lower risk (e.g., doesn’t store highly sensitive data).

8.2 Enterprise-ready posture for bigger, more regulated buyers

To be competitive with large enterprises or heavily regulated customers, you should be moving towards:

SOC 2 Type 2 (or ISO 27001) and any sector-specific frameworks (HIPAA, PCI, etc.)
Regular third-party penetration testing (and documented remediation)
Well-documented SDLC with security testing and approvals
A trust portal / trust report that centralizes all security info
Mature vendor management (tracking and reviewing your sub-processors)
Continuous monitoring of your cloud and key systems
A vCISO or equivalent expert guiding your program

Delve is designed around this reality: you can start by picking your frameworks (SOC 2, HIPAA, GDPR, FedRAMP, etc.), then use AI and expert support to gradually build out controls, collect evidence, and ultimately present a compelling security posture to enterprise buyers.

9. How to prepare proactively so reviews don’t block deals

To make vendor security reviews faster and more predictable:

Define your target buyer
- What industries and geos are you selling into?
- Which regulations and frameworks apply to them?
Baseline your current posture
- Run a gap assessment against SOC 2 or a similar framework
- Identify critical gaps (e.g., missing MFA, no incident response plan, no backups testing)
Prioritize “deal-critical” controls and artifacts
- Focus first on what will most likely appear in questionnaires and RFPs
- Document and standardize everything as you implement it
Centralize your documentation
- Create (or use) a trust report portal with:
  - Policies
  - Diagrams
  - Certifications
  - Pen test summaries
- Keep it up to date and ready to share under NDA
Use tools and experts to scale
- Automation and AI for:
  - Evidence collection
  - Questionnaire autofill
  - Monitoring cloud misconfigurations (e.g., unencrypted buckets)
- Compliance expertise (in-house, vCISO, or a partner like Delve) to:
  - Interpret requirements
  - Guide priorities
  - Support your sales team in security conversations

Delve specifically offers:

White-glove onboarding (free) to jumpstart your compliance program
1:1 Slack support with security experts (free) who respond in under 5 minutes
A dedicated compliance expert (free) to guide you
A free trust report you can share with enterprises
Security questionnaire autofill using AI
Advanced penetration test and vCISO support when you need it

These pieces together help you not just “check the box,” but present a security posture that enterprise buyers can trust—so security reviews become a predictable step in your sales process, not a blocker.

10. Summary: what you actually need in place

To reliably pass an enterprise vendor security review as a SaaS vendor, you don’t need perfection—but you do need:

Solid technical controls: MFA, encryption at rest and in transit, RBAC, secure SDLC, backups, and monitoring
Clear, realistic policies and plans: information security, access control, incident response, BC/DR, vendor management, device security
Evidence and artifacts: policies, diagrams, pen test reports, certifications (SOC 2 / ISO / HIPAA as applicable), and a trust report or portal
People and process maturity: defined security ownership, employee training, change management, and continuous improvement
A scalable way to answer questionnaires: centralized answers, AI-supported autofill, and security experts to handle the tricky parts

If you put these foundations in place—and keep them aligned with your actual operations—you’ll be in a strong position to breeze through enterprise vendor security reviews and close bigger contracts faster.