Competing with Stripe: How ISOs Win the Online Payment War

The Stripe Threat Is Real — But the Narrative Is Overblown

Stripe is the most celebrated payment company in the world. With $1 trillion+ in annual payment volume, a $95 billion valuation, and a product that developers love, Stripe has fundamentally changed the online payments landscape. It is natural for ISOs to wonder: is there room for anyone else?

The short answer is yes — and not just in the margins. While Stripe dominates online payments among tech-forward companies, the broader small business market tells a very different story.

According to Census Bureau data and Stripe’s own annual reports, only 12% of offline small businesses (brick-and-mortar, local service businesses, restaurants, retail shops) use Stripe. That means 88% of offline SMBs are still served by traditional payment providers, including ISOs. And in-person commerce still represents the majority of total payment volume in the U.S. economy.

More importantly, Stripe’s strengths — developer-first design, self-serve onboarding, API-driven integration — are also its weaknesses when it comes to serving traditional SMBs. Most local businesses do not have developers. They need hands-on training, compliance support, and someone to call when their terminal goes down at 9pm on a Friday. That is the ISO advantage.

Where ISOs Have Clear Advantages Over Stripe

1. High-Risk and Complex Industries

Stripe has strict policies against serving high-risk merchants: adult content, firearms, gambling, CBD/cannabis, multi-level marketing, and debt collection. ISOs who specialize in high-risk payment processing can serve entire industries that Stripe will not touch. For these merchants, Stripe is not an option — they need an ISO who understands their industry’s compliance requirements.

2. Hands-On Service and Support

Stripe’s model is self-serve. You sign up online, integrate via API, and resolve issues through documentation or email support. Most traditional SMBs — especially those without dedicated tech teams — need more: in-person training, 24/7 phone support, and someone who understands their specific business. ISOs who provide white-glove service are competing in a different market than Stripe.

3. Complex Billing Models

While Stripe excels at simple e-commerce transactions, it struggles with complex billing: subscription management with proration, invoicing with net-30 terms, retainers, progress billing, and multi-party payment splits. ISOs who offer payment platforms designed for complex billing models — law firms, construction, professional services — serve markets Stripe finds difficult.

4. In-Person POS Integration

Stripe has made significant inroads in POS with Stripe Terminal, but it remains a relatively small part of their business. ISOs who offer integrated POS + online payment solutions for omnichannel merchants (a restaurant with online ordering, a retailer with both a store and e-commerce site) can offer deeper integration and simpler management than juggling Stripe + a separate POS provider.

5. B2B Payments

B2B payments are fundamentally different from consumer e-commerce. They involve net-30 to net-90 payment terms, purchase orders, accounts payable/receivable, and ACH/wire transfers. Stripe’s consumer-focused product does not serve B2B billing well. ISOs who build B2B payment solutions — with features like automated invoicing, PO matching, and credit management — operate in a space Stripe has not penetrated.

Capability	Stripe	Traditional ISO
Developer-Friendly API	Best in class	Varies by provider
Self-Serve Onboarding	Fully automated	Requires application review
High-Risk Merchant Support	Very limited	Specialized programs available
In-Person POS	Limited (Stripe Terminal)	Full POS ecosystem
B2B Invoicing/Net Terms	Limited	Specialized solutions exist
24/7 Human Support	Email/chat only, business hours	Phone support available

The Hybrid Strategy: Online + In-Person

The most successful ISOs in the Stripe era are not trying to beat Stripe at its own game. They are playing a different game entirely: the omnichannel hybrid.

Consider the typical SMB: a restaurant with a physical location and online ordering, a retailer with a storefront and e-commerce site, a service business with mobile payments and invoicing. These merchants need both online payment processing and in-person POS — and managing Stripe + a separate POS provider creates complexity.

ISOs who offer unified platforms that handle both — with a single merchant account, one statement, one support number — eliminate this friction. And for merchants who also want an online presence (most do), OrderPin’s white-label platform gives ISOs the ability to offer e-commerce payment processing alongside POS, under the same ISO brand.

What ISOs Should NOT Try to Do Against Stripe

Just as important as knowing where ISOs win is knowing where they should not compete:

• Do not try to out-develop Stripe. Stripe has thousands of engineers and has been building payment infrastructure for 15 years. Their API is genuinely best-in-class. Competing on developer experience is a losing game.
• Do not try to beat Stripe on price for standard e-commerce. Stripe’s pricing is competitive and transparent. ISOs who compete purely on price will lose to Stripe’s scale advantages.
• Do not ignore Stripe’s ecosystem. Many merchants use Stripe AND an ISO for different parts of their business. Rather than fighting this, position your ISO offering as complementary: “Stripe handles your online checkout, and we handle everything else.”

Conclusion

Stripe is not going away. It is a formidable competitor that has earned its dominance in online payments. But dominance in online payments is not the same as dominance in the entire payments market — and it is certainly not the same as dominance in the offline, service-based, complex-billing, relationship-driven world that most ISOs operate in.

The 88% of offline SMBs not using Stripe represent a $50+ billion market that ISOs understand better than any tech company. These merchants need solutions, support, and expertise that Stripe’s self-serve platform cannot provide. That is the ISO advantage — and it is not going away.

The ISOs who will thrive in the Stripe era are those who specialize: find the niches, industries, and use cases where their expertise is irreplaceable. Build technology that Stripe cannot easily replicate. Provide the hands-on service that a developer-first company will never prioritize.

Stripe is winning the online payment war. But the offline payment war — which is actually the bigger war — is still being fought. And ISOs have the home-field advantage.

OrderPin helps ISOs compete by providing the technology platform they need: unified online + POS capabilities, high-risk merchant support, B2B billing features, and white-label deployment under the ISO brand. Play to your strengths. Let Stripe have the API-first tech companies. Win everyone else.