Due Diligence Checklist

Every question we ask.
Organised by round.

TechSignal runs structured AI analysis across 106+ checks, weighted for the specific risks and expectations of each investment stage. Nothing generic. Everything calibrated to what matters at that round.

106+
Checks in total
4
Pillars
4
Investment rounds

Why it matters

The right questions depend on the stage

A pre-seed codebase should not be held to Series A standards. A Series A codebase absolutely should be held to Series A standards. Generic checklists fail because they either over-penalise early teams or under-scrutinise mature ones.

Pre-Seed

Can this team ship? Are there any immediate liabilities?

Seed

Is this sustainable as the team and product scale?

Series A

Can this handle 10x users and 3x the engineering team?

Series B+

Is this enterprise-ready, compliant, and operationally mature?

Coverage

Four pillars, every round

Code Quality

Architecture, test coverage, technical debt, dependency hygiene, and engineering discipline. Is this a team that ships with care?

  • Pre-Seed: hygiene and coherence
  • Seed: parallelism and separation of concerns
  • Series A: modularity and team scaling
  • Series B+: platform engineering and standards

Security

Secrets management, authentication, dependency vulnerabilities, access control, and compliance posture. What are the liability risks?

  • Pre-Seed: hardcoded secrets and basic input validation
  • Seed: auth quality and data encryption
  • Series A: compliance and formal security processes
  • Series B+: SOC 2, vendor risk, enterprise readiness

Scalability

Database design, caching strategy, infrastructure choices, load testing, and known bottlenecks. Can this handle what growth brings?

  • Pre-Seed: schema design and obvious bottlenecks
  • Seed: connection pooling and async processing
  • Series A: load testing, auto-scaling, infra-as-code
  • Series B+: multi-tenancy, global edge, FinOps

Stability

CI/CD maturity, observability, incident response, deployment practices, and operational standards. Will this hold up under pressure?

  • Pre-Seed: basic logging and repeatable deployments
  • Seed: error monitoring and deployment frequency
  • Series A: SLOs, DORA metrics, on-call process
  • Series B+: change management, chaos engineering, DR

Stop reading checklists. Start running them.

TechSignal runs all of this automatically against the actual codebase. Results in under 2 minutes. First signal free.

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