Code review & technical due diligence
Most business owners only discover something's wrong with their software when it's already expensive: a security gap, a system nobody dares touch anymore, growth the platform can't keep up with.
A code review gives you an independent, plain-language answer before that happens: is your system solid, does it need targeted fixes, or is it quietly heading toward a rebuild?
No obligation · Reply within 1 business day

We audit the codebase itself and put the findings in a report written for business owners, not just developers.
Can the code be extended and changed sustainably, or is every new feature a fight?
Can bugs actually be found and fixed, or does nobody fully understand how it works anymore?
Can it keep up with what's next for the business, or will it hold you back?
In money, time, and momentum. Most rebuilds happen because a problem got found too late.
A code review costs a fraction of that, and tells you where you stand while you still have time to act on it.

You want to test or sharpen the technical foundation of your solution
You're considering switching to a new development partner
You want to support your in-house dev team with technical improvements
You need technical due diligence before an investment, acquisition, or partnership decision
A short intake on the current situation, how the solution came to be, and any concerns you already have. Together we shape a plan matched to your goals for the audit.
Our engineers assess the code in full: the choices made, the documentation available, and the technologies and dependencies in use.
Our findings go into an advisory report that states the risks and where the opportunities lie, walked through on a follow-up call.
How well is the code actually put together? Could another team pick it up, or would they get stuck? Is the data stored securely? Were the agreements that were made actually delivered on?
After the review, you'll know exactly how the solution is built. We explain every building block in plain terms, separate what's genuinely necessary from what's a nice-to-have, and lay out our main recommendations in a management summary.

An indicative budget for the improvements we recommend, based on open, transparent calculation, so you can set clear priorities. Working with your own developers or another partner? We're glad to support or advise there too.
This add-on lays out what's already being tracked, what's missing, and what it takes to get your solution ready for growth based on facts, not guesswork.
A tailored proposal, aimed at your next milestone, with no obligation attached.
Yes, I want insight into my codeWe didn't build your system and we're not trying to sell you a rebuild. Our advice follows what we find in the code.
Our team works full-stack on production systems every day, so we know a real risk from a style preference.
Every report includes a management summary in plain language, so you can decide without a technical background.
"Development, hosting and technical SEO – everything we needed from our technical partner. Recently, 4BIS.nl implemented an online appointment booking module on our website. We’re very satisfied."
Work with a technical partner that designs, builds, and maintains scalable custom software that grows with your organization.



