Software you'll still be happy with in five years.
Like
An app in the app store, the ERP your whole business runs on, or that one integration nobody dared to build: we make it. Well thought out, properly done, and without having to rebuild it in three years. Many clients come for one project and stay for the rest.
- Approachable
- Playful
- Professional
- Curious
- And above all: we think ahead
Built to last. So are we.
An installation company, a trading business, an offshore contractor. Completely different clients, with the same wish: software that works, and builders who understand the whole picture. Whether it's an app for the app store, a customer portal or the system the entire company runs on.
That's why we prefer to work together for a long time. Not to hold on to you, but because software gets better when the builders truly know your business. Feel free to start small: the first job says more than any quote.
One job, done well
A well-defined question with a clear finish. We deliver what was agreed, when it was agreed. And if you like it, you know where to find us.
- Clear scope and planning
- Design, build and go-live from one team
- Aftercare without fine print
A software team without the payroll
All the benefits of an in-house development department, without vacancies and fixed costs. We know your systems, your people and your plans, and keep building year after year.
- Fixed builders who know your business
- Maintenance, further development and a roadmap
- More or fewer hours when needed
Two seniors in your code
You already have a development team, but the backlog is winning. We work in your codebase, tooling and rhythm, without months of onboarding.
- Up and running tomorrow
- Complete features or a sub-project
- No staffing agency construction
“What we particularly appreciate is the responsibility Twolf took straight away when our existing programmer dropped out due to personal circumstances. They took over his work, including the existing legacy, and ensured continuity. The collaboration feels very natural and pleasant, as if we've been colleagues for years rather than an external party.”
What we build for you
There's little we haven't built yet: apps, portals, complete business systems and the integrations between them. Behind every good software project is a job nobody wants to do anymore — tell us which one it is at your company.
Mobile apps
For your customers in the app store or your people in the field. Native for iOS and Android, smooth on any device and working offline when it has to.
Web platforms & portals
From customer portal to full SaaS product. Fast, secure and built to last for years, even when your business doubles in size.
ERP & business systems
From CRM to full ERP, like the one we're building for XS Direct. Software that streamlines quotes, planning and administration instead of slowing them down.
Integrations & APIs
APIs and links to your accounting, planning or machinery — we make systems talk to each other that currently don't. So data is entered once and is correct everywhere.
Modernising legacy systems
Is your business running on software from another era? We rebuild it with modern technology, step by step and without bringing things to a halt — keeping everything that works well.
Industrial, offshore & inspection
Control software for offshore cranes, real-time systems and inspection platforms for the technical sector. When software really cannot fail, we feel right at home.
Which job do you never want to do yourself again?
Tell usProven technology, deliberately chosen
Not this year's hype, but tools that have proven themselves for years and will still be maintained in five. Looking specifically for a Vue, Nuxt or Laravel developer? You're in the right place.
Backend
Frontend
Apps
Data & infrastructure
Also at home in:ReactFlutterSymfonyElixir & Phoenix
Working with something else? Just ask. We're happy to step into an existing codebase, and we'll tell you honestly when something isn't our strongest suit.
Situations we see all the time
No abstract services, but recognisable problems. See your company in one of these? Then we usually already know what the first step is.
- Modernisation
The platform that keeps your business running
The situationYears ago you had software built that fits exactly how you work. It still does what you need, but the developer is gone, every change takes months and it doesn't work on a tablet. Starting over feels like gambling with your business.
What we doWe first dig into the existing system and its data, so nothing gets lost. Then we rebuild the platform step by step with modern technology. The old system keeps running until the new one has fully taken over, and your team recognises the way of working immediately.
The resultThe same software you've known for years, but fast, secure, on any device and ready for the next ten years. No downtime, no big bang.
The platform that keeps your business running
Years ago you had software built that fits exactly how you work. It still does what you need, but the developer is gone, every change takes months and it doesn't work on a tablet. Starting over feels like gambling with your business.
We first dig into the existing system and its data, so nothing gets lost. Then we rebuild the platform step by step with modern technology. The old system keeps running until the new one has fully taken over, and your team recognises the way of working immediately.
The same software you've known for years, but fast, secure, on any device and ready for the next ten years. No downtime, no big bang.
Recognise one of these situations, or have a completely different one?
Tell us your situationWhy companies choose Twolf
The difference isn't the technology — that's simply solid with us. It's what it feels like to work with us.
You get us, not an account manager
At Twolf you talk directly to the two people building your software. Short lines, fast decisions, no ticket system in between.
Honest advice, even when it's inconvenient
We'll tell you when something is a bad idea — and think along about what does work. Better a good conversation up front than an expensive project afterwards.
Serious craftsmanship, lighthearted collaboration
We take your software dead seriously, and ourselves a little less. Clients describe working with us as 'like we've been colleagues for years' — that's how it feels to us too.
Smart tools, shorter lead times
With AI-backed development we deliver faster without compromising on quality. More features, lower cost, live sooner.
What clients say
Not because we say so, but because they do
"Het werken met Elmer en Gerwin van Twolf voelt zowel professioneel als luchtig: we lachen geregeld, maar de lijnen zijn kort en er wordt snel geschakeld. Afspraken worden strak nagekomen en hun praktische instelling helpt ons om Novacheck stap voor stap in te voeren bij Van der Heide. Novacheck is het nieuwe inspectieplatform dat we inzetten om onze elektrotechnische inspecties slimmer en efficiënter te maken. Elmer en Gerwin denken actief mee over de inrichting en zorgen ervoor dat het platform goed aansluit op onze bestaande werkwijze. Hun betrokkenheid en flexibiliteit maken hen tot een fijne en betrouwbare partner."
"Voor de bouw van ons nieuwe CRM-systeem zijn wij een samenwerking aangegaan met Twolf. Vanuit een grote selectie van partijen voelde Twolf uiteindelijk als de juiste keuze, dat gevoel is in de praktijk volledig bevestigd. Vanaf het eerste moment denken Elmer en Gerwin actief met ons mee. Ze begrijpen niet alleen de techniek, maar vooral ook onze organisatie, processen en ambities. Samen met het XS Direct-team geven zij stap voor stap vorm aan een CRM dat écht bij ons past. Wat we bijzonder waarderen, is de verantwoordelijkheid die Twolf direct nam toen onze bestaande programmeur door privéomstandigheden wegviel. Zij namen zijn werkzaamheden over, inclusief de bestaande legacy, en zorgden daarmee voor continuïteit. Dat gaf ons rust en vertrouwen. De samenwerking voelt heel natuurlijk en prettig, alsof we al jaren collega's zijn in plaats van een externe partij. Er wordt snel geschakeld, helder gecommuniceerd en altijd meegedacht in oplossingen. Wij kijken met veel vertrouwen en enthousiasme uit naar het eindresultaat en zijn blij dat we dit traject samen met Twolf zijn aangegaan."
How we get it done
From first conversation to software in production — in clear steps
The two behind Twolf
Building is in our blood
Besides client work, we build our own products — simply because we love the craft.
NovaCheck
Our own SaaS platform for professional inspections: digital reports, standards-compliant checklists and real-time synchronisation.
Visit NovaCheck →
Diveri
A safe, inclusive social platform, specially designed for neurodiverse people.
Visit Diveri →
FoodGrowers
A local marketplace where growers manage and sell their home-grown produce.
Visit FoodGrowers →Want to get acquainted?
Tell us about your project — or about that one job everyone at your company dreads. We'll think along free of obligation and tell you honestly what we think.
Send us a message
You'll hear back from Elmer or Gerwin personally, usually within one working day.