SaaS · Series A Stage Due Diligence

SaaS Series A Due Diligence Checklist

The complete Series A due diligence checklist for SaaS startups. Prepare your data room, anticipate every investor request, and close your round faster.

All Checklists

4–8 weeks

Typical DD Timeline

5

DD Categories Covered

50+

Checklist Items Total

SaaS Regulatory DD Context

GDPR, CCPA, and SOC 2 compliance documentation are typically requested within the first 48 hours of formal DD. Have these ready in your data room before the process starts.

Data Room Essentials for Series A

Documents to have ready before DD begins

  • 2–3 years of financial statements (audited preferred)
  • All customer contracts and MSAs
  • IP ownership documentation and patent portfolio
  • All employee offer letters and equity agreements
  • Board minutes for all meetings
  • All material third-party agreements
  • Data room access log maintained

LEGALLegal Due Diligence

Full legal review by investor counsel covering all corporate documents, IP ownership, key contracts, employment agreements, and regulatory compliance. Takes 4–6 weeks.

General Legal Items

  • Certificate of Incorporation and all amendments
  • Bylaws and any shareholder agreements
  • Cap table with fully diluted ownership by class
  • All convertible instruments (SAFEs, notes, warrants)
  • Option pool documentation and all grants
  • Founder IP assignment agreements
  • Co-founder agreements and vesting schedules
  • Material third-party agreements

SaaS-Specific Legal Items

  • SOC 2 Type II certification or audit timeline
  • SLA agreements and uptime commitment review
  • Data processing agreements (DPAs) for GDPR and CCPA
  • Open-source license audit (GPL, AGPL exposure)
  • Software escrow arrangements for enterprise contracts

FINANCIALFinancial Due Diligence

Full financial audit or reviewed financial statements (Big 4 or regional firm). Full unit economics model with cohort analysis. Multi-year financial model reviewed by FP&A.

General Financial Items

  • Financial statements (P&L, balance sheet, cash flow)
  • Bank statements (12+ months)
  • Accounts receivable aging report
  • Accounts payable aging report
  • Payroll records and headcount history
  • Revenue recognition policy documentation
  • Tax returns and any outstanding tax obligations
  • Insurance policies (D&O, E&O, general liability)

SaaS-Specific Financial Items

  • MRR/ARR reconciliation with billing system data
  • Cohort-level gross retention and NRR analysis
  • Customer concentration risk (top 10 customers as % of ARR)
  • Deferred revenue and backlog analysis
  • Infrastructure cost as % of gross margin over time

PRODUCTProduct and Technical Due Diligence

  • SOC 2 / ISO 27001 certification status
  • Penetration test results (last 12 months)
  • Uptime logs and major incident post-mortems
  • API versioning and deprecation policy
  • Data backup and disaster recovery documentation

MARKETMarket Due Diligence

  • Win/loss analysis for last 50 closed deals
  • Customer reference availability (willing to speak to investors)
  • Net Promoter Score (NPS) trend and methodology
  • Competitive displacement win rate by competitor

TEAMTeam Due Diligence

Formal background checks for all officers and directors. Reference calls with 5–8 professional contacts per founder. Prior employer verification.

  • LinkedIn profiles for all founders and officers
  • Employment agreements for key personnel
  • Equity grant history and vesting schedules
  • Any prior employer IP invention disclosure forms
  • Non-compete and non-solicitation agreements
  • Professional reference contacts (3+ per founder)
  • Advisory board agreements and equity grants
  • Organizational chart as of current date

Frequently Asked Questions

How long does Series A due diligence typically take for SaaS startups?

SaaS Series A due diligence typically takes 4–8 weeks. Full legal review by investor counsel covering all corporate documents, IP ownership, key contracts, employment agreements, and regulatory compliance. Takes 4–6 weeks. Having a complete data room ready before DD kicks off can reduce this timeline by 30–50%.

What SaaS-specific items do investors review during Series A DD?

For SaaS at the Series A stage, investors focus heavily on: SOC 2 Type II certification or audit timeline, SLA agreements and uptime commitment review, and MRR/ARR reconciliation with billing system data, Cohort-level gross retention and NRR analysis. GDPR, CCPA, and SOC 2 compliance documentation are typically requested within the first 48 hours of formal DD. Have these ready in your data room before the process starts.

What should I put in my data room?

Your Series A data room should include: 2–3 years of financial statements (audited preferred); All customer contracts and MSAs; IP ownership documentation and patent portfolio; All employee offer letters and equity agreements; Board minutes for all meetings; All material third-party agreements; Data room access log maintained. Use a structured folder system that mirrors investor expectations — most institutional investors use a standard folder taxonomy.

What are the most common due diligence deal-killers?

The five most common DD deal-killers are: (1) undisclosed founder litigation or criminal history, (2) IP ownership gaps — particularly for university-origin technology, (3) customer contract terms that prevent assignment on change of control, (4) cap table math errors or undocumented equity grants, and (5) financial restatements required after revenue recognition review.

What team due diligence should I expect at the Series A stage?

Formal background checks for all officers and directors. Reference calls with 5–8 professional contacts per founder. Prior employer verification.

Download the Full Checklist

Get the SaaS Series A due diligence checklist as a Google Sheets or Notion template. Track completion status for every item in your data room.

Includes data room folder template, investor question tracker, and reference FAQ guide