Why execution matters more than features in B2B fintech

Earlier this month, I sat on a panel at PayTech Forum in Munich with representatives from three different companies who, it turned out, were already tied to each other before any of us said a word. YouLend, which finances small businesses through the platforms they sell on. eBay, which runs the actual product a seller sees when they’re offered a same-day loan. Banking Circle, the licensed bank whose infrastructure sits underneath a good part of that transaction, including some of YouLend’s own operations. The moderator had framed the session as a debate: is embedded finance an established, operational force, or is it still mostly a pitch deck?

Forty minutes in, there was no debate left. Nobody at that table was arguing over whether embedded finance works. The entire conversation had moved one level down, into what it actually takes to make it work reliably at scale. That shift, from “does this work” to “can this hold,” is the same shift I think our whole industry is quietly going through right now, and the data backs it up.

B2B fintech’s 97% gap is a trust problem, not a product problem

Fintech had a big year. Global revenue crossed half a trillion dollars in 2025, growing at 22%, more than four times the pace of incumbent banks, according to Boston Consulting Group and FT Partners’ Global Fintech Report 2026. On paper, that reads like an industry that’s arrived.

Then you look at market share instead of growth rate, and the story flips. Fintechs still hold only about 4% of global financial services revenue. In B2B, it drops to roughly 3%. I don’t read that as a disappointing number. I read it as the honest size of the opportunity still on the table, once you strip out the parts of the market we’ve already won. And that opportunity isn’t sitting there because the product isn’t good enough. It’s sitting there because it hasn’t earned enough trust yet.

If you run a business that isn’t fintech, this still matters: you’re the customer every one of these companies is trying to earn, and the same trust question applies to whoever you choose to run your payments, your banking, or your infrastructure.

Enterprises don’t switch providers until they trust the infrastructure underneath

A small business with simple, recent processes can afford to take a chance on a new provider. A large enterprise, running on financial workflows that have been load-bearing for a decade, cannot. For them, “better” isn’t the question. “What happens the day this breaks” is the question, and until someone can answer it convincingly, the safer, clunkier incumbent wins by default.

That’s really what was underneath the shift I saw in that Munich panel. The conversation had moved past proving embedded finance works, because enough of the market has already answered that question for themselves. What’s left to prove is narrower and harder: that it holds up at the scale and stakes a large enterprise needs.

Trust in B2B fintech gets built by partnerships, not all-in-one platforms

The response to that trust gap, at least the one I’ve seen work, isn’t a single company trying to own the entire financial stack end-to-end. It’s specialists, each excellent at one piece, integrated tightly enough that the client never has to think about the seams.

Look at how eBay built Seller Capital. eBay owns the merchant relationship because that’s their business. YouLend turns eBay’s own platform data into same-day lending decisions because that’s theirs. Banking Circle’s infrastructure moves the money underneath, because that’s what they’ve spent years hardening. No single company in that chain is claiming to do everything. Together, the merchant sees one smooth product.

That’s the model I’d bet on for closing the B2B gap: not a single vendor asking an enterprise to trust them completely, but a visible division of expertise that lets a business trust each piece for what it actually is.

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Execution, not feature lists, is what actually earns that trust

I hear a version of this every time I ask one of our own partners at Wallester why they chose us over an incumbent or another challenger. They rarely highlight just the features. It’s execution: how deep the technical team’s experience runs, how clear the API documentation is, whether the infrastructure keeps holding as they scale into new markets.

Those aren’t glamorous answers, but they’re the honest ones, and they’re the same three things I’d point to if you asked me what separates a fintech a business trusts with its money from one it merely tries out.

Whoever executes best will win B2B fintech’s next five years

Everyone in this industry, myself included, agrees AI is going to change underwriting, fraud detection, customer service, spend management, probably faster than most of us are planning for. What I won’t do is pretend anyone can tell you exactly what B2B fintech looks like in five years. The report that put fintech’s growth rate at 22% is the same one that put our market share at 4%. Both numbers are true at once, and that gap is where the next five years get decided.

Half a trillion dollars proves this industry isn’t a passing trend. A 3% share of B2B revenue proves we’re still near the beginning of the part that matters. Nobody is going to win that remaining ground simply by having a better list of features. They’ll win it by being the provider a business trusts enough to hand over the money that keeps it running.