Technical Due Diligence Before You Write the Check
Independent code, architecture, and security review for investors and acquirers — delivered as a plain-English risk report with severity-ranked findings and a remediation estimate, so the deal rests on facts instead of a polished demo.
A demo is not diligence
Every target looks great in a demo. The product loads, the founder is sharp, the deck says the architecture is modern and scalable. None of that tells you whether the code behind the demo is an asset or a liability. We have seen impressive-looking products built on a copy-pasted prototype with no tests, hard-coded credentials, a single founder who is the only person who understands the system, and a dependency that was abandoned three years ago. That is the kind of thing that turns a clean term sheet into a painful surprise eighteen months later.
Technical due diligence is an independent look under the hood before you commit capital. We read the actual code, map the real architecture, probe the security posture, and assess how the engineering team works. Then we tell you, in plain language, what you would be buying — what is solid, what is risky, what it would cost to fix, and what should affect the price or the terms.
What we review
- Code quality and maintainability — structure, readability, consistency, and accumulated technical debt
- Architecture and scalability — whether the system can handle the growth the deal thesis assumes
- Security posture — authentication, data handling, dependency vulnerabilities, secrets, and exposure
- Testing and CI — how much is actually verified automatically versus tested by clicking around
- Infrastructure and operational risk — deployment, monitoring, backups, and single points of failure
- Dependencies and licensing — abandoned packages, security advisories, and license obligations
- Intellectual property — whether the company actually owns the code, including contractor contributions
- Team and key-person risk — bus factor, documentation, and how much lives in one person's head
Our methodology
We start with a scoping call to understand the deal, the thesis, and the depth you need — a quick read for a seed round is different from acquisition diligence on a system you will operate. We agree on a fixed fee and a delivery date up front, sign your NDA, and take scoped read-only access to the codebase and infrastructure.
From there we review the code and architecture, interview the engineering lead, and probe the security and operational posture. You receive a written report with an executive summary your investment committee can read in five minutes, a severity-ranked findings list, a remediation cost estimate, and the specific items we think should affect price or terms. We are available to walk your team and the target through it.
Process & timeline
- Scoping call: deal context, diligence depth, fixed fee and delivery date, NDA signed
- Days 1-2: Access setup, repository and infrastructure walkthrough, engineering lead interview
- Days 3-8: Code, architecture, and security review with findings logged and severity-ranked
- Days 9-12: Report drafting — executive summary, findings, remediation estimate, deal-impact flags
- Delivery: Written report plus a live readout with your team and the target's engineering lead
What we look at
Pairs naturally with hands-on penetration testing when the deal warrants a deeper security read, and with legacy modernization if the target carries real technical debt. Helpful background: what is technical debt.
Why an independent read
We are an engineering firm, not a deal advisor, and we have no incentive for your deal to close or fall through. That independence is the value. We also separate signal from noise: a startup with some technical debt and thin test coverage is normal and fixable, while undocumented architecture controlled by a single departing engineer is a real threat to the thesis. Knowing which is which comes from building and inheriting systems for a living, not from a checklist.
Because the engagement is founder-led, the person reading the code is the person writing the report and sitting on the readout call — not a junior analyst whose findings get summarized away. You get a candid, defensible artifact you can put in front of an investment committee or a board.
Delivered confidentially and remotely to investors and acquirers across the United States from our base in Macon, Georgia.
Pricing
Fixed-fee per engagement. Typical ranges:
- Focused diligence on an early-stage seed or Series A target: $8k – $18k
- Standard diligence on a growth-stage product with multiple services: $18k – $30k
- Deep acquisition diligence on a larger, multi-team system: $30k – $45k
- Add-on hands-on penetration test of the target application: scoped separately
- Post-deal remediation roadmap and oversight: scoped as a follow-on engagement
Fixed fee and delivery date agreed before access is granted. No hourly meter running during a time-sensitive deal.
What you get
- A written report with a five-minute executive summary for the investment committee
- A severity-ranked list of every finding, not a vague pass or fail
- A remediation cost estimate for the issues that matter
- Specific flags for anything that should affect price or terms
- A security posture assessment of the target
- An IP and key-person risk read on the code and the team
- A live readout call with your team and the target's engineering lead
- Confidential handling under your NDA, with access revoked at the end
FAQs
What does technical due diligence actually cover?
Code quality and maintainability, architecture and scalability, security posture, the state of testing and CI, infrastructure and operational risk, third-party dependencies and licensing, intellectual-property ownership of the code, and the health and key-person risk of the engineering team. The output is a severity-ranked findings list, not a vague thumbs up or down.
How long does a technical due diligence engagement take?
Most engagements run one to three weeks depending on the size of the codebase and the depth required. A focused review for an early-stage seed or Series A target can be completed in about a week; a deeper acquisition diligence on a larger, multi-service system takes two to three.
Will you sign an NDA, and how do you handle confidential code?
Yes. We sign your NDA before any access is granted and work under read-only access scoped to the diligence. Code, credentials, and findings are handled confidentially, and access is revoked at the end of the engagement. Discretion is part of the job.
Do you give a go or no-go recommendation, or just a report?
We give you the facts and our honest read, framed for a deal decision rather than a pass or fail grade. The report ranks every finding by severity, estimates what remediation would cost, and flags anything that should change the price or terms. The investment decision is yours; our job is to make sure it is informed.
Can you assess security as part of due diligence?
Yes. A security posture review is part of every diligence — authentication, data handling, dependency vulnerabilities, secrets management, and obvious exposure. For a deeper, hands-on offensive assessment of the target's application, we can scope dedicated penetration testing alongside or after the diligence.
Why use an independent firm instead of our own technical team?
An outside reviewer has no stake in the deal closing and no internal politics, so the read is candid. We also do this specific work repeatedly, so we know which findings actually threaten a deal versus which are normal startup technical debt. Your team gets a clear, defensible artifact for the investment committee or board.
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Related services
Penetration Testing
Hands-on offensive security testing of the target application.
Legacy System Modernization
De-risk and replatform a target that carries real technical debt.
Fractional CTO Services
Post-deal technical leadership to execute the remediation roadmap.
Diligence for deals in fintech, SaaS, and healthcare. To scope a review, contact us directly.
Technical Due Diligence — Where We Serve
Georgia-based engineering team serving investors and acquirers nationwide. Diligence runs remotely under NDA with scoped, read-only access; in-person readouts are available in Atlanta and the Southeast.
Founder-led from scoping call through readout. Browse the full services lineup or read about our web app penetration testing for a deeper security read on a target.
Know what you are buying.
Call William Beltz directly at (770) 652-1282 or book a 20-minute scoping call. We will frame the diligence to your deal and put facts behind the decision before you commit capital.