Due Diligence Guide · E-commerce Agency

Due Diligence Guide for Acquiring an E-commerce Agency

A phase-by-phase framework for evaluating client contracts, revenue quality, talent risk, and platform dependencies before buying a DTC or performance marketing agency.

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Acquiring an e-commerce agency requires scrutiny beyond standard financial review. Client relationships are intangible, revenue quality varies between retainers and projects, and founder dependency can quietly undermine post-close value. This guide structures due diligence across three critical phases to help buyers confidently evaluate agencies with $1M–$5M in revenue.

E-commerce Agency Due Diligence Phases

01

Financial & Revenue Quality Review

Assess the stability and predictability of revenue, verify EBITDA margins, and separate recurring retainer income from one-time project fees before advancing the deal.

Retainer vs. Project Revenue Breakdowncritical

Request a 36-month revenue schedule separated by retainer, project, and performance fees. Retainer revenue should represent 70%+ of total for a defensible valuation multiple.

Client Concentration Analysiscritical

Identify revenue contribution by client for the past 3 years. No single client should exceed 20% of revenue. Flag any top-3 clients representing more than 50% combined.

EBITDA Margin Verification by Service Linecritical

Reconstruct EBITDA after adding back owner compensation and personal expenses. Verify margins by service line to identify unprofitable accounts or untracked contractor costs.

02

Client & Contract Risk Assessment

Review all client agreements for termination rights, notice periods, and renewal history to understand true revenue durability and exposure to post-close churn.

Contract Termination Clause Reviewcritical

Pull all active client contracts and flag month-to-month arrangements, short notice periods under 30 days, or missing auto-renewal clauses that create churn vulnerability post-acquisition.

Client Retention Rate Historycritical

Calculate annual gross and net revenue retention for the past 3 years. Average client tenure below 18 months or churn above 25% annually signals fragile client relationships.

Key Relationship Dependency Mappingimportant

Identify which client relationships are managed by the founder versus account managers. Founder-held relationships with no documented handoff plan represent serious post-close revenue risk.

03

Talent, Technology & Operational Review

Evaluate whether the team and systems can operate independently post-close, and assess platform certification status, tool dependencies, and documented service delivery processes.

Key Employee Retention Risk Assessmentcritical

Review compensation, non-solicitation agreements, and tenure for all account managers and strategists. Identify any employees likely to depart following a change of ownership.

Platform Certification & Partnership Auditimportant

Verify active status of Google Premier Partner, Meta Business Partner, and Amazon Ads certifications. Lapsing certifications signal talent gaps and may affect client confidence post-close.

SOP and Service Delivery Documentation Reviewimportant

Confirm documented SOPs exist for client onboarding, campaign management, and reporting. Absence of SOPs increases founder dependency and raises post-close operational risk substantially.

E-commerce Agency-Specific Due Diligence Items

  • Request a platform diversification breakdown showing revenue attributed to Google, Meta, Amazon, and email channels to assess exposure to any single algorithm or policy change.
  • Obtain the full technology stack list including tool subscriptions, proprietary dashboards, and white-label software. Confirm transferability of all licenses and integrations at closing.
  • Review net revenue retention by client cohort to identify whether existing clients are expanding spend or quietly reducing scope, which is a leading indicator of future churn.
  • Assess vertical specialization depth — agencies concentrated in beauty, supplements, or apparel command premium multiples but carry higher risk if that vertical experiences a DTC downturn.
  • Request all sub-contractor and freelancer agreements to verify classification, confirm confidentiality obligations, and assess whether variable labor costs are accurately reflected in reported EBITDA.

Frequently Asked Questions

What revenue multiple should I expect to pay for an e-commerce agency?

Well-documented e-commerce agencies with 70%+ retainer revenue and diversified client bases typically trade at 3x–5.5x EBITDA. Founder dependency or client concentration will compress multiples toward the lower end.

How do I evaluate whether retainer revenue is truly recurring?

Review rolling 12-month billing records for each retainer client. Confirm contract terms, average tenure, and renewal history. Month-to-month arrangements without auto-renewal clauses are not reliably recurring revenue.

Can I use an SBA 7(a) loan to acquire an e-commerce agency?

Yes. E-commerce agencies are SBA-eligible businesses. Expect to inject 10–15% equity, with the seller often carrying a 5–10% note. The business must show at least 2–3 years of consistent EBITDA to qualify.

What is the biggest deal-killer in e-commerce agency acquisitions?

Founder dependency combined with undocumented client relationships. If the seller manages all key accounts personally with no account managers or SOPs in place, post-close revenue erosion is highly probable.

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