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Online marketplace Agency for e-commerce with a system.
Strategy, technology & scaling – from the No. 1 marketplace agency
Over 25 years of e-commerce experience – as an online marketplace agency, we reliably get platforms up and running. We develop digital marketplaces that grow – whether they are proprietary platforms or connected to Amazon & Co. With clean technology, a clear roadmap, and a genuine hands-on mentality.
Why marketplaces? Why now?
Online retail is at a turning point. Traditional online shops? They're no longer enough. Anyone who wants to grow today needs platform DNA – whether they're a retailer or an operator.
Marketplaces have long been the new playing field: more than half of online sales now go through platforms. And for good reason: they offer reach, trust, and speed. But they also offer more complexity.
Many online retailers face the same questions:
Is being a dealer enough anymore? Foreign rules, little control.
We help you become a marketplace yourself - with everything that goes with it: technology, automation, and the retailer experience.
Without Amazon and Co., but how?
We build bridges instead of walls: our own platform plus external marketplaces - for the best of both worlds.
And technically? Can we do it?
We bring structure to the system. With well-thought-out integration, streamlined processes, and automation from the first click to the payout.
Two paths. One goal. We are the marketplace agency that can do both.
As an agency for marketplace projects, we don't do things by halves. We develop platforms that motivate retailers – or connect them to Amazon and other platforms in a way that pays off.
Platform strategy is not a question of either/or - it's a question of both/and. And as an online marketplace agency, we bring precisely this synergy to the table for you.
Our services as an online marketplace agency
Marketplace projects can feel like a puzzle without instructions: lots of pieces, lots of interfaces—but no clear picture. We bring structure to the process. With a clear roadmap, deep technical understanding, and an eye for what is feasible, we guide you through every phase: from the idea to the running system.
Marketplace or shop? Why not both?
We are not only marketplace specialists – we are also an online shop agency. We would be happy to advise you on high-performance web shops.
Marketplace Consulting
A successful platform starts with the right marketplace strategy. For us, marketplace consulting means refining the business model, planning the MVP, and thinking in a way that ensures technology and business are aligned.
Marketplace Development
Want to scale an existing shop to a marketplace? Or start from scratch? We are your agency for marketplace development. We think intuitively about UX/UI design, smart interfaces, and flexible user roles right from the start. We develop your platform using modern technologies—for example, with the Tradeware solution.
Marketplace connection & integration
Amazon, OTTO, Kaufland, or Rewe: Clean marketplace integration is key to efficiency. We connect systems such as ERP, PIM, or shops via high-performance marketplace interfaces - with automated feeds, repricing logic, and AI-supported processes.
Betrieb & Weiterentwicklung
Nach dem Livegang ist vor dem Feinschliff. Wir bleiben dran – mit technischem Support, Marktplatz Marketing (Social Media, SEO und SEA) und skalierbarer Weiterentwicklung. KI? Gerne mitgedacht.
Operation & Further Development
After going live, it's time for fine-tuning. We stay on the ball—with technical support, marketplace marketing (social media, SEO, and SEA), and scalable further development. AI? We're happy to help.


Your own marketplace - without the tech marathon
We rely on Tradeware for this. The solution provides complete marketplace technology out-of-the-box. You save months of development time and can start right away with what really matters: your business.
We would be happy to show you what Tradeware can do.
Which marketplaces we can build
Not all marketplaces are the same. Start-ups need speed. Medium-sized companies need scalable technology. B2B companies require complex processes.
Depending on the target group, business model, and industry, different structures, processes, and user experiences are required. We know what matters and implement exactly what suits you.
Do you sell to end customers? Then the most important factors are: simple user guidance, fast checkout, smart product recommendations, and strong performance. We ensure that customers don't just click - they buy.
When it comes to prices, approvals, or individual conditions, standard solutions are not enough. If you are looking for a B2B marketplace agency that understands exactly what you need, you have come to the right place.
Directly to the target group, without any middlemen: D2C marketplaces connect brands with people. We create the platform for this—with full control over product range, communication, and customer experience.
No standard approach? All the better. We develop marketplaces that adapt to your products and services - not the other way around. Whether it's a niche, platform economy, or new concept, we'll get it off the ground.

Ready to make history in the marketplace?
No matter where you stand, we'll get involved and move your marketplace project forward. Let's talk - no strings attached, but with substance.
Systems & interfaces: How to get your offer onto the marketplace
Not everyone needs online shops to sell on marketplaces. The only important thing is that your product and order data must come from somewhere - and be transferred reliably.
What you need
We work with you to develop a platform that inspires retailers and automates processes. Retailers can easily register, list products, and billing runs automatically - that's how scaling works.
What we can tie up
We seamlessly connect your systems to Amazon Marketplace, OTTO, Kaufland, and others. Optimized feeds, automated processes, cross-channel marketing - everything included, nothing duplicated.
In short: No matter where your data is located, we will securely deliver it to the marketplace of your choice.
Why we are your online marketplace agency
Build your own platform or make clever use of existing marketplaces? In both cases, you need more than just tools - you need a system that thinks, connects, and scales. That's exactly what we offer as an e-commerce agency.
We don't just think about marketplaces - we build and integrate them. Technically sound, strategically thought-out, and with a team that really understands the platform business.
Platform thinking instead of shop building blocks
We come from e-commerce - and we take it further. For over 25 years, we have been supporting companies through digital transformation. Today, we develop marketplaces that not only sell - they enable entire platform ecosystems.
Technology? We deliver it too.
75% of our team consists of developers. For you, this means sound advice, clean implementation, and scalable architectures. No gimmicks, no building blocks - just genuine engineering that grows with you.
Proven technology base – also for marketplaces
Over 1,000 projects implemented and a platform infrastructure that has proven itself. With solutions such as synQup and Tradeware, we focus on solutions that don't start from scratch - they deliver right away.
Partnership instead of project handover
Over half of our customers stay with us for more than five years. Why? Because we don't just implement - we think ahead, develop further, and take responsibility. Even when things get complex.
Marketplaces are the premier league of e-commerce. Anyone who wants to compete here needs more than standard solutions - they need partners who think in terms of platforms.

These companies trust in our e-commerce expertise
E-commerce is our domain. For years, we have been supporting companies in the digitalization of their retail operations—with scalable systems, well-designed processes, and powerful technology in the background.
This long-standing experience forms the foundation for our work on marketplace solutions: data-driven, highly integrable, and focused on growth.
These companies already rely on our expertise:





Your contact person
Do you have questions about our services or about elio? We are here for you! Simply write to us using the contact form and we will get back to you as soon as possible.
Any questions? - FAQ
Which commerce platform is the right one for our marketplace?
Yes – and that is precisely the key to success in many projects. A clean connection to online marketplaces ensures that product data, prices, and inventory are transferred automatically—without any manual maintenance. Whether you need a marketplace connection for Shopware, Shopify, Magento, SAP, Akeneo, or JTL, we can integrate your systems seamlessly. For more complex IT landscapes, we rely on synQup for flexible, stable, and scalable connections.
How long does it take to develop a marketplace?
That depends greatly on the scope of the project: Is it an in-house development or a preconfigured solution? How many systems need to be connected? What are the requirements in terms of UX, role models, payment methods, etc.? A minimum viable product (MVP) can often be realized in just a few weeks, while comprehensive digital marketplace developments with complex merchant logic, interfaces, and individual features can take several months. We work with you to define what really makes sense—and implement exactly what will help you move forward.
Can existing systems such as ERP, PIM, or shops be connected?
The right technology depends heavily on the business model, the planned range of functions, and the IT landscape. For many customers, a preconfigured solution such as Tradeware is ideal because it is scalable and can go live quickly—without months of development work. Some shop systems, such as HCL Commerce, offer a powerful marketplace system right out of the box. As an HCL Commerce agency, we would be happy to advise you on this as well. Alternatively, we also develop custom setups, for example with your own front end or complex workflows. The important thing is that the technology fits your business - not the other way around.
Does everything have to be implemented at once?
No. On the contrary: we often start with an MVP in order to achieve initial results quickly. New features, dealer groups, or marketplace areas can be added later in a modular fashion. This reduces costs, minimizes technical risks, and allows you to get feedback from real-world operations more quickly.
How much does a customized marketplace cost?
A marketplace connection is the technical link between your systems (e.g., ERP, PIM, or shop) and an external marketplace such as Amazon, eBay, OTTO, or Kaufland. Product data, inventory levels, prices, and orders are automatically synchronized—without manual maintenance. This saves time, reduces errors, and enables true omnichannel commerce.
What is a marketplace connection?
In B2C, Amazon, eBay, OTTO Market, Kaufland, ManoMano, and REWE are among the most important marketplaces. In B2B, there are specialized platforms such as Mercateo, Wer liefert was, or industry-specific solutions. We help you identify the right platforms—tailored to your target group, product range strategy, and processes.
What digital marketplaces are there?
Yes – with a so-called split shopping cart. This means that products are automatically assigned to the respective sub-retailer at checkout. This way, every retailer knows exactly what they need to deliver – and you retain an overview of processing, payments, and responsibilities. We would be happy to set this up for you.
Can I distribute the shopping carts among the retailers?
Because we don't just understand e-commerce—we think ahead. We bring 25+ years of experience, a strong team of developers, and a deep understanding of systems to the table. Whether you need to build a platform or connect to existing marketplaces, as an online marketplace agency, we don't deliver a standard solution, but rather a setup that fits your business model—technically sound, strategically thought out, and scalable.
Why is elio the right online marketplace agency for our project?
The right technology depends heavily on the business model, the planned range of functions, and the IT landscape. For many customers, a preconfigured solution such as Tradeware is ideal because it is scalable and can go live quickly—without months of development work. Some shop systems, such as HCL Commerce, offer a powerful marketplace system right out of the box. As an HCL Commerce agency, we would be happy to advise you on this as well. Alternatively, we also develop custom setups, for example with your own front end or complex workflows. The important thing is that the technology fits your business - not the other way around.