Engineer-Led Technical Due Diligence - No Silos, No Blind Spots

Uncover hidden risks. Validate technology claims. Make investment decisions with confidence. BLS delivers fast, comprehensive and evidence‑driven technical due diligence for investors, boards, and leadership teams who can’t afford blind spots.

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Technical Due Diligence: Prove What’s Real Before You Buy Or Sell

Technical Due Diligence (TDD) is a structured, evidence-driven assessment of a company’s technology and product maturity, including architecture, code, hardware, scalability, security, engineering practices, documentation quality, and platform readiness.

As modern products have a complex blend of hardware, embedded systems, cloud architecture, security, IP and regulatory requirements, a surface-level review does not uncover the risks that change valuation, timelines, or deal outcomes.

For buyers, TDD reveals hidden technical debt, delivery risk, security gaps, and scalability limits, so you can negotiate with facts, protect ROI, and avoid costly surprises after close. For sellers, it is a fast way to stress-test your story, pre-empt investor questions, and strengthen confidence by showing clear evidence, strengths, and a prioritised remediation roadmap.

BLS delivers this through modular approach tailored to the product, risks and your timeline, our deep-dive structured framework, and clear risk scoring, empowers your next steps.

3 Steps. Complete Piece of Mind

1. Scope— Define What Matters Most

We begin by aligning with your investment or technical team to understand strategic priorities, areas of concern, and the critical assumptions behind the deal or product. This ensures the technical due diligence is sharply focused on the technical domains that present the highest risk or the greatest potential impact on valuation, scalability, or integration.
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2. Scrutinise— Examine Every Critical Technical Layer

Our team conducts a deep, structured evaluation across hardware, software, embedded systems, architecture, engineering processes, IP, and security—guided by your chosen scope. Using teardown evidence, architectural reviews, testing data, interviews, and documentation analysis, we uncover hidden risks and validate or challenge the claims that matter most to your decision.

3. Strengthen— Turn Technical Findings into Strategic Advantage

You receive a comprehensive, decision‑ready risk assessment with a clear narrative, RAG scoring, and actionable recommendations for investment confidence, remediation, or deal negotiation. We translate complex technical insight into a clear set of strategic options, enabling you to move forward with certainty, whether that means investing, integrating, renegotiating, or walking away.

Trusted by Innovators

“BLS’s technical due diligence gave us the confidence to proceed with a major acquisition. Their insights went far beyond a checklist. They uncovered both risks and hidden strengths in the engineering team.”
CTO, Global SaaS Company
“The BLS team’s hands-on approach and clear reporting made complex technical issues easy for our board to understand. We avoided a costly mistake thanks to their diligence.”
Partner, Private Equity Firm
“We needed a rapid, independent review before closing a deal. BLS delivered a thorough risk scan in days, with practical recommendations we could act on immediately.”
Head of M&A, Industrial Tech Group

BLS Technical Due Diligence

Independent, In-Depth Assessments for Confident Technology Investments.
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Hardware & Embedded Systems
We conduct a detailed review of hardware design, component selection, and integration with software and embedded systems. This includes evaluating the use of real-time operating systems (RTOS), modular design principles, power management strategies, and support for over-the-air (OTA) updates. We assess manufacturability, certification readiness, and lifecycle management, ensuring hardware platforms are robust, scalable, and ready for future iterations.
Engineering Maturity & Practices
Our review covers the maturity and effectiveness of engineering processes, including development workflows, code quality, testing coverage, and deployment pipelines. We assess the use of best practices such as version control, continuous integration/continuous deployment (CI/CD), and documentation standards. This evaluation provides insight into the team’s ability to deliver reliable, maintainable, and scalable solutions, and highlights opportunities to improve efficiency and reduce technical debt.
Product Lifecycle Review
In our product lifecycle review we conduct a thorough evaluation of the target company's product roadmap, support strategies, and end-of-life planning to ensure long-term product viability and minimize lifecycle risk. This assessment involves examining the roadmap for future product development, reviewing support plans and end-of-life strategies, and analysing documentation related to maintenance, upgrades, and deprecation processes. We identify potential lifecycle risks, such as unsupported components or the absence of a clear upgrade path, providing you with actionable insights to safeguard your investment and ensure the product remains sustainable and competitive throughout its lifecycle.
Scalability & Architecture
We analyze the design and scalability of both software and hardware architectures, ensuring they can support current and future business needs. This includes evaluating backend and frontend systems, deployment models, cloud infrastructure, and integration points. We assess the ability of the architecture to handle increased loads, support new features, and integrate with third-party systems, providing guidance on improvements to enable seamless growth and adaptability.
Product & Platform Readiness
We assess whether the technology platform is capable of supporting current operations and future product ambitions. This includes performance benchmarking, scalability analysis, and alignment between product strategy and technical execution. We evaluate the readiness of the platform for market expansion, integration into larger portfolios, and support for new features or business models, ensuring the technology can deliver on strategic objectives.
Regulatory Compliance & Certification Readiness
We conduct a thorough review of the organization’s and product’s alignment with all relevant regional and international regulatory frameworks. This includes evaluating documentation, processes, and controls to ensure readiness for certifications such as GDPR, UKCA, CE, FCC, ISO 27001, and others. Our assessment identifies potential compliance gaps, risks to market entry, and ongoing obligations, providing actionable recommendations to achieve and maintain regulatory approval in target markets.
System Reliability & Safety
Our assessment focuses on the robustness and dependability of systems and products under real-world conditions. We evaluate uptime, fault tolerance, disaster recovery, and incident response protocols, as well as architectural resilience under load. We also review safety-critical features, failure mode analysis, and the implementation of monitoring and alerting systems. Reliability modeling techniques are applied to estimate product lifetime and inform proactive maintenance strategies, ensuring long-term operational stability and user safety.
Cybersecurity & Data Protection
We examine the security posture of applications, infrastructure, and data management practices. This includes reviewing access controls, authentication mechanisms, vulnerability management, encryption, and incident response capabilities. We assess compliance with global security standards and data protection regulations, identifying weaknesses that could expose the organization to cyber threats or data breaches. Our recommendations help strengthen defences and ensure the confidentiality, integrity, and availability of critical assets.
Manufacturing & Supply Chain Risk
Our assessment examines the organization’s ability to scale production, maintain quality, and manage supplier relationships. We review manufacturing workflows, quality control processes, lean manufacturing principles, traceability protocols, and defect prevention measures. We also assess supply chain resilience, identifying risks related to single-source suppliers, geopolitical factors, and logistics, and provide recommendations to strengthen supply chain robustness and support global distribution.
Lifecycle Planning & Maintenance Strategy
We evaluate strategies for managing the entire lifecycle of products and systems, from initial deployment through to end-of-life. This includes planning for maintainability, support for future product iterations, and the implementation of proactive maintenance programs. We assess the use of remote monitoring, OTA updates, and end-of-life management processes, ensuring products remain secure, reliable, and cost-effective throughout their operational life.
Intellectual Property & Software Compliance
We review the organization’s approach to intellectual property (IP) management and software compliance. This includes assessing IP ownership, licensing arrangements, and the use of third-party or open-source components. We identify risks related to IP infringement, license violations, and software audits, providing guidance on best practices for protecting proprietary technology and ensuring compliance with all relevant legal and contractual obligations.
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Features

Why Partner With Us?

Engineer-Led Deep Expertise: Real-world engineers lead every engagement, catching critical nuances that checklist-driven or generalist teams miss.
Full-Spectrum Coverage: Comprehensive assessment across software, hardware, infrastructure, and compliance - no silos, no blind spots.
Sector-Specific & Regulatory Mastery: Deep knowledge of industry standards (aerospace, medtech, energy, etc.) and multi-region compliance (CE, FCC, FDA, etc.).
Actionable, Value-Focused Insights: Every finding is paired with clear, practical recommendations, so you know exactly what to do next.
Trusted Independent Partner: 100% objective, with no hidden agendas or conflicts of interest. Our sole focus is technical diligence.

Resources and Insights

The Five Pillars of Comprehensive Technical Due Diligence

Explore the five essential pillars of technical due diligence—compliance, reliability, security, scalability, and engineering maturity—to ensure confident tech investments.

Read the Article

Technical Risk and Due Diligence Packages

Not completely sure what kind of help you need? Request a copy of our TDD Product Packages which provides a visual comparison of our packages, features, and pricing.

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Sample Report

See a real-world technical due diligence report (redacted)

Download the Sample Report
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"Technical due diligence is not just about identifying risks. It is about giving our clients the clarity and confidence to make the right decisions at the right time."

James Yorkshades
Director

Frequently asked questions

Everything you need to know about the support we provide.
What does Technical Due Diligence include?
Our TDD spans technology stack, product maturity, engineering processes, architecture, risk scoring, security, lifecycle planning, manufacturing readiness, and IP analysis. Deeper modules expand into detailed technical domains where needed.
How long does a typical assessment take?
Most engagements run 10–20 business days depending on scope and selected modules. We also offer Fast Lane add-on for accelerated delivery for time sensitive deals.
Do you provide on site interviews?
Yes. On site assessments can be added via the on-site addon for deep validation of engineering teams, manufacturing, or processes.
Is this suitable for hardware, software, or mixed tech products?
All of the above. We specialize in complex, multi domain products involving hardware, embedded systems, firmware, cloud, or regulated components.
Can you assess scalability and future proofing?
Yes. Our Scalability & Architecture module examines bottlenecks, infrastructure design, cloud readiness, performance considerations, and long term viability.
Do you test products as part of due diligence?
Yes. When required, we perform targeted tests—electrical, thermal, performance, logic, and force measurements—to validate claims or support IP mapping.
What deliverables will I receive?
• Leadership summary
• Full technical report
• RAG scoring & risk matrix
How do you ensure confidentiality?
All engagements operate under strict NDAs. We maintain secure data handling and chain of custody processes for all samples and evidence.
Do you support post due diligence remediation?
Yes. While remediation is not part of the TDD engagement, you can optionally extend into engineering support, compliance guidance, or supply chain risk reduction.
What technical areas do you assess during the core TDD review?
Our core assessment covers product architecture, technology stack, engineering processes, documentation quality, product & platform readiness, and high level risk exposure. We also review scalability assumptions, security posture, and how well the product aligns with stated claims or roadmap milestones.
How do the optional modules enhance the due diligence?
Each module delivers deeper investigation into a specific technical domain, such as IP, scalability, lifecycle management, hardware/embedded systems, manufacturing, or cybersecurity. These modules provide evidence backed clarity where the stakes are high or where the core review identifies uncertainties requiring further investigation.
Which delivery modules are most commonly selected by investors?
IP Verification, Scalability & Architecture, and Cybersecurity & Data Protection are the most frequently chosen modules because they directly influence valuation, legal exposure, and long term viability. Many deals also request Hardware & Embedded Systems or Product & Platform Readiness for physical or IoT enabled products.
Can you support technical due diligence for companies with both hardware and software components?
Yes. Our team specialises in hybrid products across hardware, firmware, cloud infrastructure, and software applications. We evaluate integration quality, update mechanisms (including OTA), reliability, and cross domain risk that can significantly affect scalability and operational performance.
How do you analyse scalability and architectural resilience?
We review system diagrams, infrastructure documentation, and organisational processes to identify bottlenecks, single points of failure, and limitations in throughput or future expansion. Interviews with technical leads help validate the practicality and realism of scalability claims.
What does your cybersecurity assessment include?
Our security module reviews authentication, access control, encryption, vulnerability management, incident response plans, and alignment with best practice frameworks. While it is not a penetration test, it provides a clear view of systemic weaknesses and compliance gaps that could introduce operational or regulatory risk.
Do you examine engineering practices and team maturity?
Yes. Our Engineering Maturity & Practices module evaluates SDLC, DevOps pipelines, QA processes, release management, tooling, automation, and scaling readiness. This helps investors understand whether the team can deliver reliably under growth pressure.
Do you perform testing as part of the due diligence?
Yes—selected modules include targeted technical testing such as electrical measurements, thermal profiling, battery performance testing, logic analysis, or force measurements. These tests generate objective evidence that supports IP mapping, performance validation, or architecture reviews.
What type of hardware evaluation can you perform?
Our Hardware & Embedded Systems module includes schematic/documentation review, embedded software evaluation, component selection analysis, manufacturability checks, power management assessment, and readiness for scale or next generation versions.
Do you evaluate reliability, safety, or lifetime expectations?
Yes. Our System Reliability & Safety module assesses resilience, fault tolerance, failure modes, disaster recovery processes, monitoring/alerting maturity, and reliability modelling (MTBF/MTTF). This is particularly valuable for mission critical or regulated products.
Can you assess manufacturing or supply chain risk as part of technical due diligence?
Absolutely. We review manufacturing workflows, QC processes, traceability, supply chain resilience, and risk exposure related to critical suppliers or component obsolescence. This helps investors understand operational scalability and production related risks.
What if the product is still early stage or has incomplete documentation?
We regularly work with early stage and rapidly evolving companies. When documentation is limited, we rely more heavily on interviews, teardown evidence, testing modules, and architectural reasoning to build a reliable maturity and risk profile.
How do you ensure the conclusions are clear for non technical stakeholders?
Your final output includes a leadership ready summary, risk matrix, RAG scoring, and a clear explanation of each risk’s practical impact on valuation, delivery, scalability, and long term viability. We translate deep technical findings into business ready recommendations.
How customisable is the scope of work?
Highly. You can select only the modules relevant to your investment thesis, deal stage, or internal risk appetite. We can also tailor testing depth, focus areas, and reporting style to match PE, VC, or corporate strategy needs.
Can you handle highly regulated or specialised products?
Yes. Modules such as Regulatory Compliance & Certification Readiness provide targeted analysis for CE/UKCA/FCC alignment, sector specific standards, and certification status. For highly regulated industries, we adapt scope to the relevant technical and compliance landscape.
Do you provide guidance on technical debt and remediation planning?
Yes. While we do not implement the fixes, we highlight the most critical technical debt, outline potential solutions, and provide a prioritised remediation roadmap aligned with business goals or post acquisition plans.
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