Best Payment Processing Software - Page 20

How Many Payment Processing Software Products Does G2 Track?

Total Products under this Category: 758

Category Stats (Oct 2026)

  • Average Rating: 4.36/5 (↑0.01 vs Sep 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Esker (+4.9%) - Among all products in this category, Esker recorded the largest rating increase compared to last month

Last updated: October 01, 2026

How Does G2 Rank Payment Processing Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 22,400+ Authentic Reviews
  • 758+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Payment Processing Software

G2 Grid® for Payment Processing Software plotting products by satisfaction and market presence

Highlighted products: PayPal Payments, Amazon Pay for Business, Venmo, BILL AP/AR, Adyen Payments, PayPal Checkout, Stripe Payments, and Nickel.

Underlying data: [Grid® JSON](https://www.g2.com/categories/payment-processing/grids.json?focus%5B%5D=paypal&focus%5B%5D=amazon-pay-for-business&focus%5B%5D=paypal-venmo&focus%5B%5D=bill-ap-ar&focus%5B%5D=adyen-payments&focus%5B%5D=paypal-checkout&focus%5B%5D=stripe-stripe-payments&focus%5B%5D=nickel)

AltoPay

AltoPay is a global payment solution provider. We simplify the complexities of payments so businesses can grow with confidence.

Who Is the Company Behind AltoPay?

  • Seller: AltoPay
  • Year Founded: 2010
  • HQ Location: Miami, US
  • LinkedIn® Page: www.linkedin.com
    12 employees on LinkedIn®

Amaryllis

Amaryllis offers a comprehensive, cloud-based Payment Facilitation platform designed to empower financial institutions, software companies, and SaaS providers to efficiently monetize the payments flowing through their systems. By providing an all-in-one solution, Amaryllis enables businesses to underwrite merchants, accept credit card and ACH payments, split fees, and manage payouts without the need for extensive in-house development or multiple vendor integrations. This approach allows companies to rapidly enter the market, enhance their revenue streams, and increase their overall business valuation. Key Features and Functionality: - White-Label Solution: Customize and control the merchant experience by branding the platform to align with your company's identity, ensuring a seamless user experience. - Modular Design: Utilize a flexible, modular architecture that allows for easy customization and scalability, enabling businesses to implement only the features they need and adapt as they grow. - Seamless Integration: Integrate effortlessly with existing systems through API-driven solutions, allowing for the use of Amaryllis as a gateway or the incorporation of existing gateways into the platform. - Merchant Onboarding: Streamline the onboarding process with minimal data requirements, supporting rapid growth while maintaining compliance with risk and regulatory standards. - Transaction Processing: Accept a wide range of payment methods, including alternative payments like PayPal and digital wallets, with support for multiple currencies and smart routing to optimize authorizations. - Billing and Payouts: Manage complex billing agreements with configurable split fees and flexible payout schedules, accommodating various business models and financial arrangements. - Risk and Compliance Management: Leverage a comprehensive suite of risk management tools, including fraud detection, alert notifications, and compliance monitoring, to mitigate risks and ensure adherence to regulatory requirements. Primary Value and Solutions Provided: Amaryllis addresses the challenges businesses face in managing complex payment processes by offering a unified, customizable platform that simplifies payment facilitation. By eliminating the need for multiple vendors and reducing reliance on internal IT resources, Amaryllis enables companies to: - Accelerate Time to Market: Launch payment facilitation capabilities within weeks, allowing businesses to quickly capitalize on new revenue opportunities. - Enhance Revenue Streams: Monetize the payments processed through their platforms, leading to increased revenue and higher business valuations. - Improve Customer Experience: Offer a superior buying experience by embedding seamless payment processes into their products, fostering customer satisfaction and loyalty. - Ensure Compliance and Security: Maintain compliance with industry standards such as PCI, GDPR, and SOC, providing peace of mind and reducing the risk of regulatory issues. By leveraging Amaryllis's platform, businesses can efficiently manage their payment operations, reduce operational costs, and focus on core growth initiatives without the complexities traditionally associated with payment facilitation.

Who Is the Company Behind Amaryllis?

  • Seller: Amaryllis
  • Year Founded: 2011
  • HQ Location: West Palm Beach, US
  • LinkedIn® Page: www.linkedin.com
    47 employees on LinkedIn®

A-Pay

Start accepting payments from users in Asia and Africa in 1 day. Process VISA, Mastercard and 100+ local payment methods. Increase profitability with expanded geography and improved payment conversion.

Who Is the Company Behind A-Pay?

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AQURIT

We took our flagship AQURIT™ product and rebuilt it for Windows 7 and beyond.

Who Is the Company Behind AQURIT?

Arbiter Pay

Who Is the Company Behind Arbiter Pay?

  • Seller: Arbiter
  • Year Founded: 2025
  • HQ Location: New York, US
  • LinkedIn® Page: www.linkedin.com
    45 employees on LinkedIn®

Ascendant

Ascendant is a leading global payments provider, making international payments effortless for businesses and financial institutions. Founded in 2011, we’re headquartered in Toronto, with offices across North America, the UK, and India. Our technology powers seamless payments in over 140 currencies to more than 235 countries and territories—backed by real people who care about your results. Our platform, aPay, and our proprietary Payee Intelligence™ deliver real-time payment tracking, automated compliance, and near-zero error rates—so our clients spend less time on admin and more time growing their business. Today, over 2,500 banks and 25,000 corporations trust Ascendant to move money quickly, securely, and transparently. We believe making payments should be simple. We’re here to help your business scale globally, with personal support every step of the way. Learn more at ascendant.world .

Who Is the Company Behind Ascendant?

  • Seller: Ascendant
  • Year Founded: 2011
  • HQ Location: Pleasant Hill, US
  • LinkedIn® Page: www.linkedin.com
    79 employees on LinkedIn®

AtoA Business

Atoa Payment[https://paywithatoa.co.uk/] App is an Open Banking-based payment solution for UK businesses. Any customer with a UK mobile banking app can pay using Atoa. At Atoa, we’re building a simpler, fairer way for businesses to get paid. We help UK businesses collect payments using Pay by Bank and cards, with lower fees, faster settlement, and less admin for finance teams. Pay by Bank is powered by secure open banking technology, allowing customers to pay directly from their banking app. Card payments are also supported at competitive rates, giving businesses flexibility across payment methods.

Who Is the Company Behind AtoA Business?

AXPay

Specialized high risk payment gateway with expertise in iGaming. Get a merchant account and process payments for companies in any jurisdiction, licensed and unlicensed. Lightning-fast, secure payment processing for online casinos, sports betting, and high risk industries worldwide. AXPay was founded with a clear vision: to break down barriers in payment processing for high-risk industries. We recognized that legitimate businesses in sectors like iGaming, CBD, nutraceuticals, and others were being unfairly underserved by traditional payment processors. Our founders, with decades of combined experience in fintech and payment processing, set out to build a solution that would provide these businesses with the same level of service, security, and reliability that any business deserves. Today, we proudly serve over 500 businesses across multiple continents, processing millions of transactions monthly while maintaining the highest standards of security and compliance. Website - https://axpay.net/

Who Is the Company Behind AXPay?

Azupay

Azupay is an Australian fintech company specializing in real-time payment solutions that leverage the New Payments Platform to facilitate instant, secure, and cost-effective transactions for businesses, governments, and financial institutions. By utilizing NPP technologies such as PayID and PayTo, Azupay enables organizations to process payments 24/7, enhancing cash flow and operational efficiency. Key Features and Functionality: - PayID for Business: Allows businesses to accept real-time customer bank payments around the clock, streamlining cash flow and reconciliation processes while reducing transaction fees. - PayOut: Facilitates near-instant outbound payments to customers, suppliers, or employees, enabling efficient cash management and 24/7 payroll processing. - PayTo: Provides a convenient method for customers to authorize one-off and recurring payments, reducing missed payments and dishonors, and offering a self-managed payment experience. Primary Value and Problem Solved: Azupay addresses common challenges associated with traditional payment methods, such as delays, high operational costs, and reconciliation inefficiencies. By offering real-time payment solutions, Azupay eliminates credit card fees, reduces fraud risks, and accelerates access to funds, even during weekends and public holidays. This empowers businesses to focus on their core activities without the burden of managing cash flow or dealing with payment reconciliation issues.

Who Is the Company Behind Azupay?

  • Seller: Azupay
  • Year Founded: 2019
  • HQ Location: Sydney, AU
  • LinkedIn® Page: www.linkedin.com
    39 employees on LinkedIn®

Bankful

Who Is the Company Behind Bankful?

  • Seller: Bankful
  • Year Founded: 2016
  • HQ Location: Westlake Village, US
  • LinkedIn® Page: www.linkedin.com
    28 employees on LinkedIn®

BASE24-eps

Who Is the Company Behind BASE24-eps?

  • Seller: ACI Worldwide
  • Year Founded: 1975
  • HQ Location: Coral Gables, US
  • Twitter: @ACI_Worldwide
    8,621 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    4,970 employees on LinkedIn®
  • Ownership: NASDAQ: ACIW

beGateway

beGateway is a PCI DSS Level 1 certified white-label payment infrastructure platform for PSPs, acquiring banks and regulated payment institutions. It enables companies to launch and operate their own branded payment gateway with full control over integrations, routing logic and risk management. The platform supports multi-acquirer connectivity, intelligent routing and cascading, tokenisation, advanced fraud management and multi-currency processing across multiple regions. Designed for stability, scalability and operational control, beGateway powers both regional and enterprise-grade payment providers.

Who Is the Company Behind beGateway?

  • Seller: eComCharge
  • Year Founded: 2011
  • HQ Location: Vilnius, Lithuania
  • LinkedIn® Page: www.linkedin.com
    18 employees on LinkedIn®
  • Ownership: Private Company
  • Phone: +370632023059
Subhransu Sahu
SS
Researched and written by Subhransu Sahu
Updated April 9, 2026