Technical Due Diligence: What Investors Really Look For
Having conducted technical due diligence for over $500M in transactions, I have seen what separates successful acquisitions from problematic ones. Technical due diligence is not just about checking if the code works—it is about understanding risks, scalability, and long-term viability.
Code Quality and Technical Debt
Investors want to understand the true state of your codebase. Technical debt is not necessarily a deal-breaker, but hidden or unquantified debt is.
- Code maintainability and documentation quality
- Test coverage and automated testing practices
- Known bugs and issue backlog
- Refactoring needs and estimated costs
- Code review practices and quality gates
Architecture and Scalability
Can your system handle 10x growth? What about 100x? Investors need confidence that your architecture can scale with business growth.
- System architecture documentation and diagrams
- Database design and query optimization
- API design and integration capabilities
- Caching strategies and performance optimization
- Horizontal and vertical scaling capabilities
Security and Compliance
Security breaches can destroy value overnight. Investors scrutinize your security posture and compliance status.
- Security audit history and vulnerability assessments
- Data encryption at rest and in transit
- Access control and authentication mechanisms
- GDPR, HIPAA, or other regulatory compliance
- Incident response plans and disaster recovery
Team and Knowledge Transfer
The bus factor matters. What happens if key technical people leave? Investors assess team stability and knowledge distribution.
- Team structure and key person dependencies
- Documentation quality and completeness
- Onboarding processes for new developers
- Knowledge sharing practices
- Retention risks and mitigation strategies
Infrastructure and Operations
Modern infrastructure should be automated, monitored, and cost-effective. Manual processes are red flags.
- Cloud infrastructure setup and costs
- CI/CD pipeline maturity
- Monitoring and alerting systems
- Backup and disaster recovery procedures
- Infrastructure as code practices
Key takeaway
Technical due diligence is your opportunity to demonstrate technical excellence and transparency. Prepare thoroughly, document everything, and be honest about challenges. Investors appreciate founders who understand their technical risks and have plans to address them. If you are preparing for due diligence or conducting one, I can help ensure nothing is overlooked.
About Vikram Malihan
Fractional CTO with 26+ years of experience building and scaling technology teams across multiple continents. Specializing in helping startups and scale-ups navigate technical challenges, from architecture decisions to team building and fundraising support.
Learn more about Vikram