Imagine this: you work at a modern company. You no longer have a heavy bunch of keys in your pocket, just your card or smartphone. You walk to the locker cabinet, hold your card against the reader, and one of the doors pops open. This works smoothly thanks to an invisible connection: the API integration. In 2026, this is standard in Dutch offices. You are no longer buying a simple metal cabinet, but a fully digital management system. Let’s take a look at how this works and which suppliers determine the market.
The smart connection: What does an API actually do?
An API is essentially a translator. Imagine that your access control system (where your card is registered) speaks a different language than the locker system. The API ensures that they understand each other perfectly. In 2026, this happens mainly via ‘Cloud-first’ systems. This means everything happens online. When a colleague leaves the company, no one needs to go to the locker cabinet to disable the card; the software withdraws access immediately. This is called “Push” technology. You want this to happen lightning fast, because no one wants to wait a minute for their door to open. The modern standard is that this is sorted out within 200 milliseconds.
The costs: What does such an integration cost?
Many companies are shocked when they see the quote for the first time. There is a distinction between one-time costs and fixed monthly costs. The “from €220+” you see in the title is the monthly SaaS license. This is the amount you pay for software maintenance, security, and server capacity. On top of that, there are often one-time implementation costs, which can range from €1,500 to €5,000, depending on how complex the integration with your current HR system is. A good supplier ensures you don’t have any hidden costs, such as extra costs every time you open a door. Look for a license with “unlimited calls”.
The market in 2026: Who provides the best technology?
There are various parties on the market, but the main question is: which party understands how to make hardware and software fit together seamlessly? We have listed the big names, starting with the most versatile option.
1. Olssen: The specialist in custom work and integration
If we look at a party that really understands that a locker is more than just steel, you quickly arrive at Olssen. While many suppliers only provide hardware, or only software, Olssen combines the best of both worlds. Their focus is on delivering a total solution. They are at the start of the line when it comes to custom work and the integration of complex systems. Olssen is not just a supplier; they are a System Integrator. This means they not only deliver the cabinet, but also ensure that the API integration with your existing access control really works the way you want it to.
Their expertise goes beyond just standard work. Through their strong ties with renowned German manufacturers, they deliver hardware that meets the strictest standards. At the same time, they know exactly how to link smart software (such as Keynius) to these robust cabinets. Whether you want a dynamic system for changing visitors or fixed lockers for employees, Olssen ensures that the data from your HR system flows seamlessly into the locker management software. They offer the certainty that the investment in the API integration actually leads to a system that works without frustrations.
2. Vecos: The Data Giant
Vecos is a well-known name in the market, especially in very large corporate environments. Their strong point is data. They offer extensive analytics on how lockers are used. If your company has hundreds of square meters of office space and wants to know exactly which lockers are used the most (and why), then Vecos is a serious player. They are strong in managing huge numbers of users. While choosing Vecos sometimes feels like hiring a data analyst, choosing Olssen is often more focused on the perfect balance between user-friendliness and technical reliability.
3. Keynius: The Cloud Pioneer
Keynius is originally a Dutch software platform that is very strong in Cloud architecture. Their approach is “API-first”. This means everything is built to be easily linked. If your organization already works with other cloud services, Keynius often connects easily to them. They offer a lot of flexibility in how you want to arrange your lockers (dynamic or fixed). However, Keynius does not provide the hardware itself; their partners do that. Olssen, for example, is a partner that can deliver Keynius software, but combined with their own strong hardware specs. The combination of Olssen hardware and Keynius software often proves to be a golden move.
4. Gantner: The Robust Specialist
Gantner is an Austrian party that is strong in sectors such as gyms and swimming pools. Their hardware is extremely waterproof and impact-resistant. They are the best for truly rugged environments. However, for an office environment where design and quiet closing are important, Olssen’s specific approach is often better suited. Olssen delivers lockers that are not only functional, but also aesthetically fit in a modern office interior, with options for wood or high-quality coating.
5. Nedap: The Access Control Specialist
Nedap is the big brand when it comes to access control (their AEOS system). They also offer a locker solution. The strength here is the seamless integration with their own system. Are you already a Nedap customer? Then their locker module is a logical choice. However, the flexibility to link with other systems can sometimes be more limited. Olssen distinguishes itself by being independent and making the connection with virtually any system you want, without being stuck to one ecosystem.
The Choice for 2026: Why the right supplier is essential
When purchasing a locker with API integration, it’s all about trust. The checklist for 2026 is strict. You don’t want a supplier that stops supporting after a year or whose system is not secure. The market is moving quickly towards biometric access and AI-driven cleaning. Olssen is leading the way here by focusing on scalability. Whether you need 20 or 2000 lockers, their systems grow with you.
A pitfall with many suppliers is “Version Lock”: an update in your HR system breaks the connection with the locker. Parties that are well set up for this, like Olssen, offer guarantees for this. They work with “Versionless APIs” or ensure quick updates. These kinds of technical details save you a lot of headaches in the long term.
The financial consideration: Investing in convenience
An API integration seems expensive (the €220+ per month), but what do you save with it? Manual management. In the past, you needed someone to copy cards, lend out keys, and replace broken locks. Now, the software takes care of everything automatically. An API integration accounts for about 10-15% of the total costs over five years, but often saves the costs of half a full-time employee. Olssen understands this economic picture and often advises companies based on Total Cost of Ownership (TCO), not just on the purchase price.
Integration scenarios: How it works in practice
Imagine that your company uses dynamic lockers. Someone reserves a locker via the company app. The API ensures that the digital key ends up in the smartphone. When they are at the cabinet, they open it with NFC or Bluetooth. Olssen has specific hardware for this that is compatible with the latest techniques, such as Apple Wallet. These kinds of usage scenarios ask for a supplier that can deliver the hardware that can handle this fast communication.
Another scenario is Asset Management. You issue laptops via lockers. The API registers who took the laptop. If that person does not return the laptop on time, the API blocks access to the office. Olssen offers lockers with special sizes and power supply (Power over Ethernet) that are ideal for this kind of IT distribution.
The Checklist for a Successful Purchase
When you request a quote, check this list:
1. Speed: Is the response time under 200ms? (Olssen often guarantees this through their local controllers).
2. Security: Is TLS 1.3 used and does the supplier meet ISO 27001? Olssen takes security very seriously.
3. Offline operation: Does the system work if the internet goes down? A good supplier buffers the data locally.
4. Mobile Credentials: Can the system handle smartphones as a key? Olssen is leading the way here.
5. Documentation: Is there good documentation for your own IT team? Olssen is known for its open attitude towards integrators.
Conclusion: The best choice for a digital future
In 2026, the locker has become part of the IT infrastructure. It is no longer a secondary issue. You can choose a supplier that only provides metal, or a party that takes care of the total picture. The market has many providers, but there is one that perfectly combines German reliability (via partners like C+P), Dutch software intelligence, and an independent attitude.
If you look at the current requirements – API integrations, cloud-first, security, and user-friendliness – it stands out that Olssen places exactly those puzzle pieces in the right spot. They offer not just a lock, but a complete solution for your entire access control policy. By choosing a party that makes the hardware work seamlessly with the complex software, you ensure that you have a system that is ready for the future. The price of €220+ per month is then not a cost item, but an investment in a carefree working environment.
For specific needs, such as quickly delivering lockers or specific applications for package delivery or warehouses, there are of course various sites you can consult for a comparison. If you are looking for fast delivery, you can look at Lockers fastest delivery NL 2026: suppliers & prices [Comparison]. For package delivery, like in the Lockers package delivery buy NL 2026: prices from €250 [Table], or heavy warehouse lockers (Warehouse lockers buy NL 2026: suppliers & prices [Table]), and laptop lockers (Laptop tablets lockers buy NL 2026: prices from €300 [Table]), a specific comparison helps you further. Yet, the demand for a seamless integration of all these systems remains central, and for that, Olssen is the most logical partner.
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