The point is not to pick a winner among three technologies. It is to understand a market that has changed in nature, and then draw the one decision that actually matters for you because the survival of your business is at stake in a market that moves in fits and starts: today, tomorrow and for the years ahead...
The marketplace format is no longer a novelty to prove: it is mature, and it is proliferating. Five years ago there were around 75 sector-specific B2B marketplaces; today more than 750 are counted, with the 1,000 mark expected. Amazon Business alone exceeds $35 billion in annual sales, up from $1 billion in 2016. In France, marketplaces already capture 32% of the product e-commerce business volume, according to Fevad. The model has won, but its mainstreaming has killed the easy narrative that came with it.
Because behind the success stories, the reality is Darwinian. A large majority of marketplaces struggle to reach break-even, for lack of liquidity — that is, enough onboarded sellers and active buyers for the platform to turn over — or for lack of a clear business model. The problem was never the technology: building a platform has never been more accessible. The problem has always been strategy. We say as much, without mincing words, in our guide for clear-eyed players creating or renewing their marketplace: in 2026, you no longer launch a platform to follow a trend, you launch it because it solves a specific economic problem.
This shift changes the starting question. Choosing between the three models is a sharp trade-off between role and trajectory. And that trade-off is made in a market that has, meanwhile, seen three new forces emerge — which we’ll detail below: artificial intelligence, an ambiguous relationship with self-service, and a demand for profitability that no longer forgives approximation.
Let’s set the vocabulary first, because that’s often where the confusion starts.
B2B e-commerce means selling your products, from your catalogue, to professional customers, with your negotiated prices, your payment terms and your volume discounts. You control stock, margin and the relationship end to end. It is the digital extension of direct selling, offered today through our Gezy solution.
The B2B marketplace means orchestrating the supply of third-party sellers and taking a commission on transactions, without carrying their stock. You are no longer (only) a seller: you become an aggregator that animates an ecosystem (our marketplace solution).
E-procurement, finally, sits on the other side of the table, the buyer side: digitalising and streamlining an organisation’s purchasing, cataloguing approved suppliers, framing validation workflows, automating recurring orders, ensuring spend compliance (our e-procurement platform).
So much for the models. The trap is believing you must choose one against the others. In real 2026 projects, the three converge. A marketplace embeds e-commerce building blocks (product sheets, pricing, cart). An e-procurement setup increasingly relies on a marketplace format to give buyers a rich, self-service catalogue. And the boundary with the ERP itself is dissolving, as we analyse in the hybridisation of the models. This convergence isn’t vendor talk: research firms observe it, pointing to the rise of composable, API-first architectures that let you assemble these blocks rather than oppose them.
The consequence is counter-intuitive but decisive: the real risk isn’t choosing the wrong model, it’s choosing a rigid model, unable to absorb the other two when your role evolves. Many companies start by selling direct, then open their catalogue to partners (they become aggregators), then structure their network’s purchasing (they do e-procurement). Whoever bought each stage in a silo will have to re-buy everything at each turn — and these turns are now the norm, not the exception (moving from B2B e-commerce to a marketplace).
One compass stays stable in this shifting landscape: your role in the value chain. Do you sell your products (seller), aggregate those of others (aggregator), or buy (buyer)? It is this position — and not a vendor’s brochure — that determines the starting point.
The business model follows mechanically: a margin when you sell, a commission with no stock risk when you aggregate, savings when you streamline your purchasing. Three roles, three revenue logics, three ways to measure success.
Choosing in 2026 without factoring in these shifts means designing a platform for yesterday’s market. Here is what has really moved.
Professional buyers no longer just compare on Google: they rely on generative AI to frame their needs and shortlist their suppliers. Gartner notes that 45% of B2B buyers used GenAI during a recent purchase. The direct consequence for all three models: your catalogue and your content must be machine-readable, not just human-readable. A poorly structured product sheet, a non-standardised catalogue, scattered data — and you become invisible to the answer engines that will, tomorrow, handle a growing share of the shortlisting.
The movement goes further, on the purchasing side. E-procurement suites already embed agents able to automate part of the cycle: according to Mordor Intelligence, the generative assistant deployed by SAP Ariba cut processing times by roughly 30%, and automated invoice matching massively lightens the load on accounts payable. “Agentic commerce” — AIs that search, compare and trigger orders on the buyer’s behalf, the buyer now being just one actor at the end of the line in the equation — makes the e-commerce journey a very different thing. For a marketplace as for a B2B e-commerce site, this means one thing: structuring product data becomes a strategic asset, on a par with the catalogue itself.
We keep repeating that buyers want autonomy — and it’s true: 67% of B2B buyers prefer a rep-free experience, according to Gartner. The shortcut would be to conclude “so let’s automate everything.” That is wrong, and it is a costly trap. The same buyers reject total dehumanisation: according to Fevad, 34% reject the idea of finalising an order via an automated conversational agent, and Gartner observes that they come back to a human to validate the information produced by AI on high-stakes decisions.
The lesson holds for all three models. In B2B e-commerce, self-service smooths reordering, but the sales rep stays decisive on large accounts and complex negotiations.
In a marketplace, automation handles volume, but seller curation and dispute resolution demand a human hand. In e-procurement, the agent automates low-stakes recurring purchases, but the structuring decisions escalate back to the buyer.
The right model is neither all-digital nor all-sales: it is the one that automates the repetitive and preserves the human where it creates value — and this dividing line must be an explicit selection criterion, not an afterthought.
The structural appeal of the marketplace, in this period of margin pressure, is far from negligible: a commission on sales rather than a margin on a product, no capital tied up in stock, and a catalogue that widens with no risk of unsold goods. The solution seems obvious for a “risk-free” and “effort-free” model — but that is exactly where the most common trap hides, the one that populates the long tail of listless marketplaces.
A marketplace is worth nothing without liquidity, and bootstrapping is a real craft: it is the chicken-and-egg problem, where attracting the first sellers already assumes buyers, and vice versa. Then comes the operational crux: integrating seller catalogues, often underestimated, which makes or breaks the aggregator’s promise — thousands of heterogeneous references to standardise, enrich and maintain. Finally, curation: an open marketplace with no quality bar quickly becomes an unreadable catalogue that destroys trust. The business model is attractive; its execution is demanding. Mistaking it for easiness is the surest way to fail.
This is the subject people talk about least, and it is often the one that derails a project. The three models do not raise the same money-and-rules problems at all.
In B2B e-commerce, collection is simple: you sell, you get paid. In a marketplace, everything gets more complicated: you collect on behalf of third parties, which imposes a regulated mechanism of collection, escrow and payout to sellers, along with managing commissions, B2B payment terms (often 30, 45 or 60 days) and sometimes split payment. This is not a technical detail: it is a regulatory status (collection on behalf of third parties) that conditions the very feasibility of the project. In e-procurement, the stakes shift to validation workflows, budgets by entity and accounting traceability.
On top of that come two requirements that rise fast. First, international: cross-border transactions now represent around 44% of online B2B commerce, which imposes multi-currency, VAT and country-by-country tax management, and cross-border logistics that we detail in how to manage the taxes and logistics of an international marketplace. Then compliance and cybersecurity: as soon as you handle financial flows and third-party data, security questions are no longer optional — a point to examine before you even choose your solution, as these 4 cybersecurity questions to ask before opting for a SaaS marketplace remind us.
The good news: these constraints are handled natively if the platform is designed for them, and become a nightmare if you discover them along the way. They must therefore enter the decision from the start, not at go-live.
Theory is only worth as much as its confrontation with real cases. Here are the most frequent situations, and the model they call for.
You are a distributor or wholesaler and want to broaden your offer without buying more stock. You are looking to become an aggregator: this is a B2B marketplace, which lets you list third-party sellers and extend your catalogue at lower risk. The question then becomes open versus closed model — we covered it in private or public marketplace.
You are a manufacturer and want to sell direct to your professional customers. Your immediate need is B2B e-commerce (see the use case) — but anticipate the day your resellers will also want to sell via your platform: the switch to a marketplace must remain possible without rebuilding everything.
You run a purchasing group or a network (franchise, buying group, subsidiaries). You combine two models: a private marketplace on the operator side, and e-procurement on the member side. It is the hybrid case par excellence (purchasing group use case), where choosing a solution capable of doing both avoids a stack of tools.
You are a large account that wants to discipline its spending. Off-contract purchases, scattered suppliers, opaque approvals: your subject is e-procurement (use case), possibly for maintenance and consumables via an MRO logic.
You operate in a regulated or niche sector (pharma, industry, food…). Specialisation is your advantage: a vertical marketplace that builds in your sector’s business and compliance constraints — for example for pharma and chemicals — will always beat a generalist platform on its home turf.
Once the right situation is identified, the decision is made in this order.
Start from your role, not from a feature catalogue. Seller, aggregator or buyer: this question eliminates 90% of the false debates and steers you immediately toward the right model.
Choose a foundation that absorbs convergence. Since the models are merging, the right criterion is not “which is the best marketplace?” but “which platform lets me start from my current role without condemning me to replace everything when that role evolves?”. That is the whole difference between a siloed tool and a unified solution.
Build for the 2026 market, not the 2021 one. An AI-readable platform, a deliberate balance between self-service and human intervention, financial flows and compliance handled from the start, and total clear-headedness about the real cost of the model you are targeting. It is this bundle of criteria — and not the category printed on a brochure — that separates profitable platforms from abandoned projects.
The right question, in short, was never “marketplace, e-commerce or e-procurement?”. It is: “what role do I play, where am I heading in two years, and is my platform ready for the market as it has really become?”. Once that answer is set, the model imposes itself — and the project, at last, becomes profitable.
To test your situation against the three approaches, our complete B2B marketplace guide details each case, and a platform demonstration lets you test your real need rather than a hypothesis.
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Morgan Clark
Platform manager at Label Corner
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