Featured List
If you’re looking for a reliable provider to deliver an in-depth, impartial software audit, this list will come in handy. Learn more about top-rated companies, compare their tech and industry-specific expertise, and choose the best partner to achieve your business goals.
Corsac Technologies Code Quality Audit, Architecture & Infrastructure Audit, Performance & Database Audit, Security & Compliance Audit
Digital Transformation Strategy, Legacy System Modernization, Cloud Consulting & Infrastructure Optimization, Data Integration & Management, Cybersecurity & Compliance Advisory, Software Architecture & System Design
Undisclosed
50 – 249
2007
United States
Since 2007, Сorsac Technologies has helped more than 100 clients modernize with a focus on strategic business goals, compliance, and security. With their comprehensive business, tech, and organisational software audit, you’ll be able to invest in innovations instead of recurring legacy fixes. Software audit solutions by Corsac provide detection of deprecated libraries, security vulnerabilities, system redundancy, and potential risks. Powered by AI, these solutions help accelerate processes, minimise risks, and conduct highly traceable and well-controlled modernization. The outcome is a detailed audit report and a clear roadmap for incremental modernization which prioritises business-critical blockers. Thanks to detailed planning, Corsac’s experts ensure a reliable and secure modernization process with integrated resilience and compliance.
Software Mind Architecture audit, UX & UI audit, Infrastructure audit, Security audit, Frontend audit, Backend services audit, Storage audit, Quality Assurance (QA) audit, Work organization audit, Mobile components audit, AI/ML audits
$50 – $99 / hr
1,000 – 9,999
1999
9 Countries
By combining manual and automated methods of system evaluation and verification, Software Mind delivers comprehensive audit services that cover the entire development cycle and its crucial components (architecture, infrastructure, frontend, backend, storage, UI/UX, security, etc.). Backed by 20+ years of experience and in-depth understanding of numerous industries, this software audit consultant helps build innovative solutions regardless of your organization scope. Software Mind prioritises reliability and ensures strict adherence to regulatory standards.
Uinno –
Cybersecurity, Software audit, Information security audit, Business Processes Audit, Data & Security Consulting, License Verification, Quality Assurance, Compliance with Standards
$25 – $49 / hr
50 – 249
2019
United States, England, Ukraine
This is not the type of software audit companies that simply chase tech trends. Uinno puts strategy first, minimising your digital transformation risks and ensuring achievement of long-lasting results. Their audit services are based on a thorough analysis of your business needs and requirements, as well as the current state of the existing system and growth opportunities. Such an approach helps look at the big picture and select the best technology among the wide range of stacks and tools. Uinno’s core goal is to find the perfect fit exactly for your project and ensure smooth scalability without any cost-intensive dependencies.
Eleks Architecture, Database & data model, Code quality, Integration layer, Security, UI/UX, Documentation quality, BA attributes, Testing artefacts
Development Process Audit, Software Audit, Post Audit
$40 – $80 / hr
2,000+
1991
Estonia
If you’re looking for an unbiased software security audit of your existing system and internal workflows, this top-ranked company will be a great choice. Thanks to advanced QA testing and an all-encompassing audit of your code, documentation, infrastructure, databases, and software deliverables, their experts identify all the system weaknesses that can pose a risk and cause revenue loss. The ELEKS team also provides post-evaluation support, helping you create a scalable framework for software delivery and reduce post-release issues.
Diceus Architecture audit, Code quality audit, Performance and scalability audit, Security audit
Undisclosed
50 – 249
2007
United States
Trusted by 150+ clients worldwide, DICEUS offers software audit services to help CTOs, product owners, tech leaders, fast-evolving startups and enterprises of various scales make smarter digital decisions. Their experts apply the ATAM method to provide fair, fact-based system review in line with your business goals and regulatory standards, such as ISO 27001, GDPR, and SOC 2. Whether you’re planning migration, modernization, or system scaling, DICEUS will help you get ready for growth by detecting architectural weaknesses, tech debt, security gaps, and operational risks.
Developex Tech Stack & Architecture Review, Code Quality Review, Software Performance Audit, Security Review
$25 – $49 / hr
250 – 999
2001
Ukraine, Poland, Germany, Croatia
A software audit conducted by Developex is more than a technical assessment. Besides in-depth analysis of your codebase, architecture, and operations, they evaluate your business logic and opportunities to achieve strategic goals and grow. Based on these insights and best industry practices, their skilled experts build a clear roadmap to scale faster, safer, and cost-efficiently. If you have a complex software product across SaaS, BI, Smart Home and Consumer Electronics, Gaming and Audio, the Developex team with 20+ years of proven expertise will cover all your needs.
Apriorit Software code Review, Architecture Analysis, Third-party integration analysis, DevSecOps pipeline review, Cloud infrastructure audit, Blockchain audit, Smart contract audit
$100 – $149 / hr
250 – 999
2002
Poland, Ukraine
The Aprioprit team’s key priority is to ensure smooth legacy modernization and minimise risks. Their extensive expertise in different tech stacks and industries, as well as 20+ years of experience in software development, help them conduct a сomprehensive audit of your product’s performance, security, functionality, and more. Workflow transparency, strict alignment to industry standards, and special focus on business goals and measurable outcomes are among their core advantages. After a detailed software review, you’ll get actionable recommendations on further improvements and resource optimisation.
Redwerk SDLC Audit, Architecture Audit, Code Quality Audit, QA Audit, Security Audit, Infrastructure Audit, Performance & Scalability Audit, AI & ML Audit
$50 – $99 / hr
50 – 249
2005
Ukraine, Estonia
Founded in 2005, Rewerk is one of the top-rated custom software development companies. Thanks to their relevant expertise and daily involvement in the development process, they know all the ins and outs to deliver an unbiased evaluation of your system and detect gaps, risks, and compliance violations. They treat clients’ time and budget with special care, ensuring everything stays within the agreed-upon scope. What makes them stand apart is almost immediate availability — just let them know about your project needs and urgency, and they’ll adjust to your schedule.
CI Gen Architecture & system design, Communication & integration mapping, Infrastructure & cloud architecture, AI readiness & integration potential, Security & compliance review, Cost & performance optimization, Operational readiness & observability, Repository & delivery standards, Codebase quality & maintainability
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$25 – $49 / hr
50 – 249
2019
Ukraine
With highly skilled Azure-certified experts on board, CIGen provides a wide range of software audit services. Their software auditing program is quite flexible and can be perfectly tailored to your needs: just pick the areas relevant to your goals among ten modules. These modules cover preparing for modernisation, performance optimisation, operational reliability improvement, assessment of AI readiness, etc. The outcome is a well-structured report with valuable findings, next-step recommendations, and ROI forecasts.
Soluntech Code Quality Audit, Architecture Audit, Performance & Database Audit, Security Audit
$50 – $99 / hr
10 – 49
2012
United States
Focus on your key tasks, while the Soluntech team will perform an in-depth audit and cover all the exhausting, resource-heavy tasks. Whether you need to evaluate your mobile or desktop app, they will thoroughly analyze all the tech details, including UI/UX, to help you enhance the system’s maintainability, performance, and reliability, ensuring smooth growth. The audit findings and expert feedback on your system’s strengths and weaknesses will be represented in a detailed report, so you can plan further steps based on facts, not intuition.
Softjourn Quality, Security, Performance, Maintainability, Compliance, Scalability
Code Audit, Technology Audit, Startup Audit
$50 – $99 / hr
250 – 999
2001
Poland
Softjourn delivers holistic consulting and end-to-end software development services. They are especially good at Ticketing; the other industries of their focus include Fintech and Media & Entertainment. Softjourn has its own R&D centres, so the implementation of cutting-edge technologies is its core priority. However, they always start with an audit first. The Softjourn experts conduct an in-depth analysis of your codebase to identify ways for improvement. Based on the valuable insights structured in the clear report, you’ll be able to make well-informed decisions.
Ralabs Expert Analysis, System Health, Risk Mitigation Plan, Performance Optimization
Dependency Audit, Standardize Coding, Prioritize Refactoring, Embrace Code Reviews
$50 – $99 / hr
50 – 249
2016
Ukraine
Ralabs is a trusted tech partner with 20 years of experience and 80+ successfully delivered projects. Their professionals will help you detect hidden risks and build a reliable modernization plan for just $990. They work incredibly fast — you’ll get a comprehensive report based on a legacy codebase audit in less than a week. That’s why Ralabs is a perfect choice for urgent tasks. Also, they strictly follow regulatory standards like GDPR, HIPAA, PCI and DSS and tailor their audit to your industry requirements.
Espeo Software Documentation review, Code analysis, Architecture review, Feature planning
$25 – $49 / hr
50 – 249
2008
Poland
Whether you’re planning a launch of a new project, optimization of existing infrastructure, system migration, or digital transformation, their seasoned consultants with 10+ years of experience will help you get ready for each important move. They possess a wide tech expertise: Java, Python, JavaScript (React, Angular, Node), C#, .NET, Ruby on Rails, mobile platforms, cloud services, databases and blockchain. Thanks to this, the Espeo team can analyse system code and infrastructure effectively and provide practical recommendations to enhance reliability, maintainability, and scalability.
Softwaremill Development Process Audit, Software Audit, Post Audit
$50 – $99 / hr
50 – 249
2007
Poland
With a strong focus on Scala, Kafka, Akka, and Cassandra, the Softwaremill team will be a great partner for organizations planning to scale, conduct digital transformation, or build data processing pipelines. Established in 2009, this company follows traditional engineering work ethics and values, which include commitment to business needs and goals, workflow transparency, and attention to detail. The key priority of their audit is to uncover the true client’s needs and find effective growth vectors for long-lasting results.
Sysgears Software Development Process Audit, Architecture Audit, Code Quality Audit, QA Process Audit, UI and UX Audit, Startup Audit
$25 – $49 / hr
50 – 249
2010
Ukraine, Cyprus
SysGears builds a flexible auditing strategy which addresses exactly that scope and components that matter for your business results. They go far beyond tech analysis, placing special focus on your system’s strengths and weaknesses, hidden risks and growth opportunities. Their experts have 13+ years of experience in custom web and mobile development for Healthcare, Finances, Marketing, Real Estate, Education, Hospitality, etc. As a result, you’ll get an unbiased system audit in line with your industry standards and a clear plan to accelerate time to market and optimize resources.
Outline your audit priorities, e.g. security, performance, compliance, growth opportunities, or all at once. Check the expertise of software audit companies to choose the one that fits your specific needs.
Your tech partner should be good at both up-to-date technologies and legacy stacks to provide in-depth system evaluation. This way, they can uncover subtle risks and hidden software weaknesses, as well as build a realistic enhancement plan.
Besides tech proficiency, an in-depth understanding of your industry requirements and pitfalls will be a great advantage. Ask for case studies and clients’ feedback to evaluate how the experts treat challenges similar to yours.
Pay attention to the workflow. Is your audit well-planned? Is it divided into clear steps? Do you understand the expected outcomes and timelines? A reliable software audit company usually follows transparent and clear processes rather than ad hoc testing.
The outcome of a high-quality audit should not be just a list of detected issues, but a comprehensive report that prioritizes problems and risks according to the business impact, includes urgent steps, strategic tasks, and measurable results for each step.
It’s a key to smooth and stress-free collaboration. Choose a partner that communicates with you understandably and respectfully, provides clear timeliness, and avoids hidden costs. This will improve your audit efficiency and safeguard you from unpleasant or costly surprises.
Legacy Software Modernization