DSALTA Blog
How to Evaluate a Third Party Vendor in 7 Steps

Written by
Ogulcan Ozdemir
|
Product Marketing Manager
Published on
Sep 24, 2025
Seven-Stage Framework for Comprehensive Business Partner Analysis
Why vendor evaluation is now mission-critical
Companies depend on many external partners. Each vendor handles a product or service, connects to systems, or touches sensitive data. A single weak link can cause security breaches, financial risk, or reputational damage. The Vendor Risk Transparency & Operational Continuity Whitepaper (Q3 2025) found that 60% of recent disruptions originated from vendors, rather than internal IT systems.
Vendor evaluation is no longer optional. It is a structured workflow that improves audit readiness, strengthens resilience in vendor risk management, and supports business continuity planning.
Step 1 - Define evaluation criteria before onboarding
Set clear standards for security profile review, compliance requirements, and business process impact before starting a vendor relationship. Without this baseline, companies cannot compare vendors in a consistent way.
Step 2 - Collect due diligence evidence
Request vendor questionnaires that include risk profile scoring, incident history reviews, and financial statements. This evidence shows how vendors manage risks, handle compliance, and reduce the risk of chain disruptions.
Step 3 - Score risk consistently
Use structured workflows for risk scoring. Automated tools make vendor approval workflows based on data, not opinion. Vendors should be rated on security teams, financial risk, and past security breaches. This process ensures audit readiness and supports more informed decisions across frameworks.
Internal controls vs vendor dependencies
IT risk management focuses on the systems the company owns. Third-party risk management looks at vendor dependencies and vendor disruptions. Internal IT teams can enforce access control, but vendor onboarding best practices are needed to manage external exposure. Both require continuous monitoring and clear contingency plans.
The Risk Assessment Report (October 2025) found that 83% of large financial institutions risked exposure through vendor systems. These were not IT risks alone. They were risks from outside parties, often discovered only after costly remediation.
Step 4 - Set up continuous monitoring
Evaluation does not stop at onboarding. Continuous monitoring tracks vendor risks in real time. This includes compliance gaps, security breaches, and financial risk indicators. Dashboards now give security teams visibility into vendor approval workflows, helping reduce the risk of supply chain disruptions.
Step 5 - Establish escalation rules
When high-level risks appear, escalation rules make sure leaders act fast. For example, if a vendor fails a compliance requirement or faces a major outage, leadership oversight should begin within hours. This speed reduces impact and prevents bigger problems.
Step 6 - Integrate with a trust center
A trust center integration creates transparency. It gives team members and business units a simple view of vendor status. Sharing vendor relationship data builds trust and reduces confusion between IT risk management and third-party risk management.
Step 7 - Link evaluation to leadership decisions
Evaluations should guide leadership oversight. Present risk profile scoring, contingency plan details, and vendor approval workflows to executives. This enables management to make informed decisions about reputational protection, financial risk, and operational resilience in vendor relationships.
Lessons from different industries
Financial institutions - Weak vendor evaluation led to financial loss and reputational damage after payment system failures.
Healthcare - Poor due diligence on third-party vendors exposed patient data and created compliance gaps under HIPAA requirements.
Manufacturing - Vendors supplying production systems caused chain disruptions when not properly reviewed.
Technology - Heavy SaaS use created multiple risks. Without SOC 2 Trust Services Criteria visibility and continuous monitoring, small oversights became serious incidents.
These examples show how managing processes and risks based on structured workflows reduces exposure to vendor disruptions, compliance failures, and reputational damage. Start your free trial today and see how automated vendor evaluation can reduce your third-party risks by up to 70% while streamlining your onboarding workflows.