← All payment sectorsMERCHANT BUYER GUIDE / NOT A PROVIDER RANKING

Card acceptance & acquiring

Compare the processor, acquirer, gateway and settlement arrangement rather than treating them as interchangeable.

THE FIRST QUESTION TO ANSWERWho contracts with the merchant, processes the transaction and holds settlement risk?

EVALUATION BLUEPRINT

The questions your buying team must resolve

Merchant entity and MCC acceptance in writing

Interchange, scheme, processing, cross-border and chargeback fees

Authorization rates by issuer, country and network

Reserve terms, payout calendar and termination rights

Measures worth watching

Approval rate by cohortEffective total acceptance costNet settlement delay

Common decision traps

A headline blended rate is not a complete quote
Cardholder reach does not establish merchant onboarding eligibility

RESEARCH DIRECTORY / EXAMPLES

Companies to investigate.

Representative research starting points, not approved matches, sponsored placements, rankings or proof of jurisdictional availability.

Payment service provider

Stripe

Online payments, billing and platform products.

Review evidence and diligence ↗

POS and payments platform

Square

In-person and online acceptance with POS software and hardware.

Review evidence and diligence ↗

Payment service provider / acquiring

Adyen

Payment processing and commerce infrastructure for cross-market operations.

Review evidence and diligence ↗

Wallet and payment processing

PayPal

Consumer wallet acceptance and merchant checkout/payment products.

Review evidence and diligence ↗

Payment service provider

Checkout.com

Payment processing and performance tooling for digital commerce.

Review evidence and diligence ↗

Payment service provider

Braintree

Online payment acceptance and gateway products.

Review evidence and diligence ↗

Acquiring and payment processing

Worldpay

Merchant acquiring and multichannel payment infrastructure.

Review evidence and diligence ↗

Merchant technology and acquiring

Fiserv

Enterprise and small-business merchant and commerce technology.

Review evidence and diligence ↗

POS commerce platform

Clover

POS hardware, software and merchant payments ecosystem.

Review evidence and diligence ↗

Restaurant POS and payments

Toast

Restaurant operating system with payment acceptance.

Review evidence and diligence ↗

Commerce platform payment product

Shopify Payments

Payment acceptance tied to Shopify commerce workflows.

Review evidence and diligence ↗

Payment technology provider

Nuvei

Global payments and merchant acceptance services.

Review evidence and diligence ↗

Payment orchestration

Spreedly

Payment connectivity, vaulting and routing technology.

Review evidence and diligence ↗

Payment orchestration

Primer

Payment integrations and orchestration workflows.

Review evidence and diligence ↗

Fraud and decisioning platform

Forter

Fraud prevention and identity/decisioning products.

Review evidence and diligence ↗

Pricing, underwriting, settlement, industry restrictions and specific markets require merchant-by-merchant confirmation. Taxonomy created November 2026.

KEEP EXPLORING

Card acceptance & acquiring

The questions your buying team must resolve

Measures worth watching

Common decision traps

Companies to investigate.

Stripe

Square

Adyen

PayPal

Checkout.com

Braintree

Worldpay

Fiserv

Clover

Toast

Shopify Payments

Nuvei

Spreedly

Primer

Forter

Connected buying decisions