Legacy code, modern solutions – boost your PHP systems
Rely on the expertise of the creator of Symfony : efficient refactoring, smooth upgrades to the latest Symfony versions, and sustainable code optimization for maximum performance and security.
Why choose SensioLabs?
Experts
In-depth Symfony and PHP expertise from the developers of the framework itself
Training
Further training of development teams for long-term independence through tailor-made training
Quality
Combination of consulting, development, training and audits for sustainable software quality
Customized solutions
We tailor our solutions to meet your specific needs.
They trust us
Do you know these challenges?
- Security Vulnerabilities
- Your legacy code hasn’t been patched in years, leaving hidden security holes that put your system and data at risk.
- High Maintenance Costs
- Keeping aging code running drains your budget and ties up your developers’ time. Every small fix or update turns into a costly, time-consuming ordeal.
- Outdated Codebase
- Your application is stuck on an old Symfony/PHP version (for example, Symfony 1.x), missing out on new features and critical fixes. Upgrading feels daunting without expert help or a solid automated test suite in place.
- Sluggish Performance
- Outdated architecture and unoptimized code slow down your application, frustrating users. You end up needing expensive infrastructure upgrades just to handle the load.
You are not alone!
Many companies face similar challenges in software development—scalability, expertise gaps, staffing shortages, and reactivity issues. Let’s tackle them together!
Read how we already helped our customers
BBC News - All the news, all the time, everywhere and for everyone, thanks to Symfony
"The strength of Symfony is its architecture," says John Cleveley, Technical Manager at BBC News. Find out why and how the BBC News technical team chose to migrate to the Symfony framework for their website.
Wetter.com - Symfony Shines Bright on Weather Forecasting in Germany
Wetter, Germany's leading weather portal, has been a long-standing user of Symfony. Thanks to Symfony, Wetter can develop applications easily, even for complex, large-scale projects, and to progressively integrate new features into its portal.
A Symfony - and React - Based Architecture to Replace an ERP Platform, External Databases, and Engineering Tools
French Presidency: The Elysée goes Symfony
Did you know that Symfony is used by the French government? Find out how SensioLabs helped the French Presidency to create a modern, long-lasting website that's completely secure.
Who we are
At SensioLabs, we are the creator of Symfony and passionate experts in PHP development. We empower businesses with scalable architectures, API-driven solutions, and best practices to tackle even the most complex challenges. With our deep expertise, we help you build high-performance applications that drive success.
Frequently Asked Questions
- How do you upgrade legacy Symfony projects without breaking things?
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We follow Symfony’s recommended upgrade paths and remove deprecated code step by step. Tools like Rector and automated tests help us modernize safely, without breaking functionality.
- What if our code has no tests – can you still refactor it?
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Yes. We add “characterization” tests to capture current behavior, then refactor incrementally. Static analysis and CI pipelines help catch issues early and keep everything stable.
- How do you handle outdated libraries and Composer dependencies?
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We audit all packages, update them gradually, and replace abandoned ones. Each change is tested thoroughly. This ensures compatibility with modern Symfony and PHP versions.
- Can modernization really improve performance?
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Absolutely. We profile your app, optimize slow queries, implement caching, and remove legacy overhead. Running on modern PHP and Symfony alone brings noticeable speed boosts.
- Isn’t this risky and expensive?
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Not with the right approach. We modernize in small, safe steps. You gain better security, lower maintenance costs, and a codebase that’s easier to extend — a smart long-term investment.
Visit our contact page to explore more ways to reach us.
Our customer service hotline is available Monday to Friday from 9:00 AM to 5:00 PM.
Online Chat
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