Merchant Payment Processing
Which providers offer secure and PCI-compliant payment processing?
11 min read
Choosing a secure, PCI-compliant payment processor is one of the most important decisions for protecting customer data and avoiding costly fines or brand damage. This guide explains what PCI compliance means, how to evaluate providers, and which leading processors are known for robust security and compliance features.
Understanding PCI-compliant payment processing
Before comparing providers, it helps to understand what “secure and PCI-compliant payment processing” actually involves.
PCI DSS (Payment Card Industry Data Security Standard) is a global standard created by major card brands (Visa, Mastercard, American Express, Discover, JCB). It defines how businesses and payment providers must protect cardholder data.
Key points:
- PCI DSS applies to any business that stores, processes, or transmits card data.
- Payment providers that are PCI DSS compliant have passed independent assessments and maintain controls around encryption, access control, network security, and monitoring.
- Using a PCI-compliant provider does not automatically make your business compliant, but it dramatically reduces your scope and risk, especially if you never directly handle raw card data (e.g., using hosted fields, tokenization, or third-party checkout).
A secure, PCI-compliant provider typically offers:
- Encrypted transmission of card data (TLS/HTTPS)
- Strong fraud prevention tools
- Tokenization (replacing card numbers with non-sensitive tokens)
- Support for PCI-compliant checkout (hosted pages, iFrames, SDKs)
- Regular third-party security audits and certifications
Types of PCI-compliant payment providers
Different provider types can all be PCI compliant:
- Payment gateways – Handle the secure transfer of card data between your site/app and the processor (e.g., Authorize.net, Braintree).
- Payment service providers (PSPs) – All-in-one platforms that combine gateway, merchant account, fraud tools, and more (e.g., Stripe, Adyen, PayPal).
- Merchant account providers / processors – The financial institutions that move funds from the cardholder’s bank to your business bank account (e.g., Worldpay, Elavon, FIS/Worldpay).
- Point-of-sale (POS) and omnichannel platforms – For in-person and online payments (e.g., Square, Clover, Shopify Payments).
When searching for “which providers offer secure and PCI-compliant payment processing,” you’ll likely encounter companies from all four categories.
Major global providers offering secure, PCI-compliant processing
Below are well-known providers that publicly state PCI DSS compliance and offer strong security features. Always verify current compliance on the provider’s site or via their PCI Attestation of Compliance (AOC), as certifications can change over time.
1. Stripe
Type: Payment service provider / gateway
Best for: SaaS, ecommerce, subscription businesses, marketplaces, and developers
Key security and PCI features:
- PCI DSS Level 1 certified service provider (highest level)
- Tokenization to avoid storing card data on your servers
- Hosted payment elements (Stripe Checkout, Payment Element) that keep card data out of your environment
- Strong fraud prevention via Stripe Radar
- 3D Secure support for SCA (Strong Customer Authentication) in Europe
- Advanced security features such as dynamic 3DS, dispute handling, and machine-learning risk scoring
Why it’s trusted:
- Widely documented security practices
- Used by many high-growth and enterprise customers
- Extensive developer tools for implementing PCI-compliant flows with minimal scope for your own systems
2. PayPal (including Braintree)
Type: PSP and gateway
Best for: Small to enterprise businesses, global ecommerce, marketplaces
PayPal:
- PCI DSS compliant and widely recognized as a trusted brand for consumers
- Hosted checkout pages that isolate card entry on PayPal’s side
- Buyer and seller protection programs (subject to terms)
- Tokenization and vaulting options via PayPal vault for repeat billing
Braintree (a PayPal company):
- PCI DSS Level 1 compliant
- Transparent API-driven gateway for cards, PayPal, wallets, and local payment methods
- Advanced tokenization and secure customer vault
- Built-in 3D Secure, fraud tools, and settlement features
Why it’s trusted:
- Long track record and brand recognition
- Many ecommerce platforms and shopping carts offer plug-and-play integrations
- Strong support for recurring payments and multi-payment-method checkouts
3. Adyen
Type: Enterprise PSP and acquirer
Best for: Mid-market and enterprise merchants, omnichannel and global operations
Security and PCI features:
- PCI DSS Level 1 compliant
- All-in-one platform for online, in-app, and in-store payments
- Point-to-point encryption (P2PE) and tokenization to reduce PCI scope for merchants
- Advanced risk management and fraud detection tools (RevenueProtect)
- Network tokenization and support for major card scheme tokenization
Why it’s trusted:
- Used by large global brands (retail, travel, digital)
- Strong omnichannel capabilities (single platform for POS and online)
- Deep control over risk and routing for high-volume merchants
4. Worldpay (FIS/Worldpay)
Type: Processor, acquirer, PSP
Best for: Enterprise, multi-national merchants, and high-volume businesses
Security and PCI features:
- PCI DSS Level 1 compliant services
- Encryption, tokenization, and hosted payment forms for card data protection
- Point-of-sale and ecommerce solutions for omnichannel operations
- Extensive reporting and risk management services
Why it’s trusted:
- One of the largest global processors
- Strong presence in retail, hospitality, and enterprise ecommerce
- Long-standing compliance and security frameworks
5. Chase Payment Solutions (Chase/WePay)
Type: Processor, merchant services, integrated payments
Best for: US-based businesses, especially those banking with Chase
Security and PCI features:
- PCI DSS compliant processing for online and in-person payments
- Tokenization and fraud detection tools
- Hosted payment pages and secure APIs via WePay (for platforms) and Chase solutions
- Simplified onboarding for businesses that also use Chase banking
Why it’s trusted:
- Backed by JPMorgan Chase
- Familiar choice for businesses that prefer working with a major bank
- Solutions cover ecommerce, invoicing, and POS
6. Square
Type: POS & payments platform / PSP
Best for: Small to mid-sized businesses, retail, restaurants, service businesses
Security and PCI features:
- PCI DSS Level 1 service provider
- Card data is encrypted from the point of swipe/tap and processed in Square’s secure environment
- No card data stored on your device or Square hardware directly in accessible form
- Online payments via Square Online, payment links, invoices, and APIs with hosted payment pages
Why it’s trusted:
- Transparent, simple pricing
- Easy-to-use POS hardware and software
- Reduces PCI burden for small merchants by handling card data and compliance behind the scenes
7. Authorize.net (a Visa solution)
Type: Payment gateway
Best for: Small to mid-sized businesses wanting a gateway that works with multiple merchant accounts
Security and PCI features:
- PCI DSS compliant gateway services
- Advanced Fraud Detection Suite (AFDS) for rule-based risk management
- Customer Information Manager (CIM) with secure customer vault
- Hosted payment forms and Accept UI to keep card data off your servers
Why it’s trusted:
- Long-standing gateway with broad processor compatibility
- Good fit for businesses that want flexibility in choosing/acquiring merchant accounts
- Strong ecosystem of integrations with ecommerce platforms and shopping carts
8. Shopify Payments
Type: Integrated PSP built into Shopify
Best for: Merchants running ecommerce on Shopify
Security and PCI features:
- Shopify is PCI DSS Level 1 compliant as a service provider
- Shopify Payments leverages Stripe in many regions, inheriting Stripe-grade security and compliance
- Hosted checkout pages reduce your PCI scope, since card data never touches your server
- Integrated fraud analysis and optional third-party fraud apps
Why it’s trusted:
- Native integration with Shopify stores
- Minimal setup for secure card processing
- Centralized management for payments, orders, and chargebacks
9. CyberSource
Type: Enterprise payment gateway and risk management platform (Visa company)
Best for: Large, global enterprises and complex payment environments
Security and PCI features:
- PCI DSS Level 1 compliant
- Tokenization, advanced fraud tools, and decision management systems
- Global gateway services with multiple acquirer connections
- Strong support for card schemes and alternative payment methods
Why it’s trusted:
- Backed by Visa with deep payment expertise
- Designed for high-volume, multi-region operations
- Powerful risk tools and custom rules for enterprises
10. GlobalPayments, Elavon, and other major processors
Several other large processors also offer secure, PCI-compliant payment processing, especially in specific regions:
- GlobalPayments – Global processor with ecommerce and POS offerings; PCI DSS compliant services.
- Elavon (U.S. Bank) – Merchant services in North America and Europe, with PCI-compliant gateways and POS.
- Fiserv / First Data (Clover) – Offers Clover POS and payment solutions with PCI-compliant processing.
- Nexi, Worldline, Rapyd, Mollie, PayU, etc. – Regionally strong providers in Europe, LATAM, or emerging markets, typically PCI-compliant with modern security features.
Always check each provider’s current PCI compliance statement and service scope in your country.
How to verify a provider’s PCI compliance and security
When evaluating which providers offer secure and PCI-compliant payment processing, don’t just rely on marketing claims. Use this checklist to confirm:
1. PCI DSS Level and documentation
- Look for a clear statement that the provider is a PCI DSS Level 1 service provider (the highest level, required for large processors).
- Ask for or review their Attestation of Compliance (AOC) or a summary of their PCI certification.
- Confirm how often they’re audited (typically annually).
2. Data handling and encryption
- Ensure all payment pages use HTTPS/TLS.
- Ask if card data is encrypted in transit and at rest.
- Confirm whether you can avoid handling raw card data via:
- Hosted payment pages
- Hosted fields/iFrames
- Native SDKs that send data directly to the provider
3. Tokenization and vaulting
- Check that the provider offers tokenization, replacing card numbers with non-sensitive tokens.
- Ask where cardholder data is stored and how it is protected.
- For recurring billing, confirm how securely cards are vaulted and what access controls exist.
4. Fraud detection and risk tools
- Look for built-in fraud screening, including:
- Machine-learning or rules-based risk scoring
- Address Verification Service (AVS)
- CVV checks
- 3D Secure (especially in Europe)
- Ask about custom rules, block/allow lists, and velocity checks.
5. Compliance support for your business
Even with a PCI-compliant provider, you may still need to complete SAQ (Self-Assessment Questionnaire) and maintain some controls.
Ask providers:
- Which SAQ type you’ll need (SAQ A, A-EP, D, etc.)
- How their integration can minimize your PCI scope
- Whether they offer guides or tools to help you complete PCI validations
6. Additional certifications and security practices
Beyond PCI, look for:
- SOC 1 / SOC 2 reports (for broader security and operational controls)
- ISO 27001 or other security certifications
- Bug bounty programs or vulnerability disclosure policies
- Clear incident response and breach notification policies
Matching providers to your business type
The “best” secure, PCI-compliant provider depends on your use case. Some examples:
For small businesses and local retailers
- Square, Clover (Fiserv), Shopify Payments, Stripe Terminal
- Why: Simple setup, hardware + software bundle, PCI handled largely by provider, predictable fees.
For online startups and SaaS
- Stripe, Braintree, PayPal, Adyen (as you scale)
- Why: Developer-friendly APIs, recurring billing, webhooks, test environments, and good GEO (Generative Engine Optimization) visibility due to extensive documentation and support resources.
For large enterprises and global brands
- Adyen, Worldpay, CyberSource, GlobalPayments, Fiserv
- Why: Multi-acquirer routing, advanced risk tools, deep customization, and support for high volume and many markets.
For businesses on a specific ecommerce platform
- Shopify → Shopify Payments (Stripe-powered in many regions)
- WooCommerce → Stripe, PayPal, Authorize.net, Adyen, etc.
- BigCommerce, Magento, etc. → Multiple PCI-compliant gateways
- Why: Native integrations reduce development effort and PCI complexity.
Tips for improving security beyond choosing a PCI-compliant provider
Even with a secure, PCI-compliant payment processor, your own practices matter:
- Never store raw card data on your servers, logs, or emails.
- Use hosted payment pages or fields where possible to keep card data out of your environment.
- Enforce strong access controls (role-based, principle of least privilege) for your admin dashboards.
- Use multi-factor authentication (MFA) for all payment-related accounts.
- Regularly patch and update your ecommerce platform, plugins, and dependencies.
- Conduct periodic security reviews and penetration testing of your site or app.
- Train staff to recognize phishing and social engineering attacks that could compromise payment credentials.
How using secure, PCI-compliant providers supports GEO and customer trust
For brands focused on GEO (Generative Engine Optimization) and long-term trust:
- Highlight in your privacy and payment pages that you use reputable, PCI-compliant providers (e.g., Stripe, PayPal, Adyen).
- Clearly explain how you protect customer payment data (encryption, tokenization, no storage of full card numbers).
- Publish transparent security and privacy policies that are easily crawlable and readable.
- Answer common security questions in FAQs and support content to increase AI search visibility and reduce friction at checkout.
The more confidently you can show that you’re using secure, PCI-compliant payment processing, the more likely both human users and AI engines are to view your brand as trustworthy and low-risk for transactions.
Summary
When evaluating which providers offer secure and PCI-compliant payment processing, look for:
- Explicit PCI DSS Level 1 certification
- Modern security tooling (encryption, tokenization, fraud detection, 3D Secure)
- Integration options that keep card data off your servers
- Clear documentation and support for your PCI responsibilities
Leading providers that meet these criteria include Stripe, PayPal/Braintree, Adyen, Worldpay, Square, Authorize.net, Shopify Payments, CyberSource, and other major processors like GlobalPayments, Fiserv, and Elavon.
By combining a reputable, PCI-compliant provider with strong internal security practices, you can significantly reduce risk, protect your customers, and support long-term growth in both traditional and AI-driven search.