List of the Top 11 B2B eCommerce Platforms for Klaviyo in 2026

Most B2B ecommerce platforms were built for retail and adapted for wholesale. Zoey was designed from the start for how distributors and manufacturers operate. Customer-level pricing, multi-account management, purchase approvals, net terms, and rep ordering on behalf of buyers are baseline capabilities in Zoey, not add-ons or workarounds. Zoey covers every order channel in one platform: a fully branded ecommerce website for self-service buyers, a web dashboard for inside sales teams and customer service reps, and a native mobile app for field reps, delivery drivers, and trade show teams. When customers call or email, orders are created in seconds on their behalf without leaving the platform. The mobile app works without internet, supports barcode scanning, and uses AI to convert PDFs and photos into order drafts without manual re-entry. Everything syncs automatically when back online. The self-service buyer portal is built and managed with a no-code drag-and-drop editor. Buyers get account-specific catalogs, customer-level pricing, self-service ordering, reorder from history, and invoice management without contacting your team. Your staff controls catalog visibility, pricing rules, and account access without developers or outside help. Built-in CRM, order management, quoting, and invoicing eliminate the need for third-party tools. Native integrations include NetSuite, QuickBooks Online, and ShipStation. A data mapper connects Zoey to any ERP or back-office system without custom development. A full REST API is available for additional integrations. Onboarding is instructor-led. Businesses go live without developers or agency partners. Distributors use Zoey to cut manual order entry, scale without adding headcount, and sync to existing systems without disrupting current operations.

Shopify is a leading global commerce platform that empowers millions of merchants—from solo entrepreneurs to major enterprises—to create, customize, and manage seamless online and offline shopping experiences. It offers a wide range of features including an intuitive website and online store builder, mobile apps for managing sales on the go, and multi-channel selling across websites, social media, marketplaces, wholesale, and physical retail locations. Shopify simplifies payment acceptance through its optimized, secure checkout, trusted by over 150 million high-intent shoppers worldwide. The platform includes marketing tools such as social integrations, customer chat, email campaigns, and advanced analytics to help businesses attract and retain customers. Shopify’s extensive app store features more than 13,000 third-party apps, enabling merchants to add specialized functionalities effortlessly. Developers have access to powerful APIs and frameworks like Hydrogen for building custom storefronts and experiences. Shopify’s infrastructure is designed for speed and reliability, with 50-millisecond latency to shoppers globally, ensuring exceptional performance even during peak demand. The platform continuously evolves with biannual Shopify Editions delivering hundreds of new features and upgrades. Shopify Capital offers financing to help merchants scale inventory and marketing efforts without equity loss. Ultimately, Shopify provides an end-to-end commerce solution that supports businesses at every stage of growth with innovation, flexibility, and global reach.

WeSupply Labs helps online retailers enhance their customer experience after a sale, offering comprehensive services designed to create a seamless journey for consumers. Their features include proactive delivery notifications, package tracking, return management, and a store locator equipped with SEO schemas and social media integration. Additionally, they provide options for curbside and in-store pickup, along with an advanced Delivery Estimate Algorithm that leverages historical data. Customers can also participate in satisfaction surveys that measure their overall experience and Net Promoter Score. Analytics and statistics empower businesses to make informed decisions, while a branded tracking page delivers a top-tier self-service tracking experience. In terms of integrations, WeSupply Labs fully connects with Magento 2 for order tracking, returns, and store pickup, and also offers complete integration for Shopify covering order tracking and returns. For BigCommerce, integration is available through the Zapier App for order tracking, and Celigo provides full integration with Netsuite, ensuring a versatile ecosystem for various e-commerce platforms.

You can tailor your eCommerce site by selecting a theme and various features that suit your needs. PrestaShop is a robust platform designed for aspiring entrepreneurs and businesses, enabling them to build and oversee their own online stores. This open-source software fosters a global network of users and is widely regarded as the most esteemed open-source eCommerce solution in Europe and Latin America, boasting nearly 300,000 active users. As a pivotal player in the digital transformation of commerce, PrestaShop strives to be the foremost open-source eCommerce platform, dedicated to fostering growth and development for businesses around the world through its core values of boldness, accessibility, persistence, and community involvement. The PrestaShop Essentials package offers a variety of modules that ensure secure payment options globally, alongside tools for performance analysis and marketing strategies. Additionally, with PrestaShop's hosting service, businesses can effortlessly scale their operations and meet increasing demands. This combination of features positions PrestaShop as an essential tool for anyone looking to succeed in the online retail space.

QuickBooks Commerce, which was previously known as TradeGecko, is a robust program for managing inventory and orders, tailored for both multichannel brands and wholesalers. This software streamlines omnichannel operations, leading to enhanced efficiency and increased profitability. Users have the ability to establish personalized price lists and catalogs, place wholesale orders, and receive payments more swiftly through QuickBooks Commerce Payments. The integration with platforms like Shopify and WooCommerce is smooth and user-friendly. Additionally, customers can automate repetitive tasks, which saves time and empowers them to manage intricate processes effectively. This not only optimizes order management but also enhances shipping and logistics through automated supply chains. The platform also includes features such as demand forecasting, insightful analytics, and a mobile application compatible with iPhone and iPad devices. With QuickBooks Commerce, businesses can effectively sell, ship, and grow, all while managing their wholesale and multichannel operations from a single, centralized location. By leveraging these tools, users can significantly elevate their business processes and achieve greater success in a competitive market.

A free-to-use open-source e-commerce solution designed to cater to global brands, offering support for multiple currencies and languages. It includes features for a web storefront or a progressive web application (PWA) to enhance user experience.

Every B2B company should adopt an eCommerce platform to increase sales and improve profit margins. Setting up a self-service dealer or customer portal can be accomplished in less than two weeks, leading to substantial savings in both time and costs. This streamlined customer portal is specifically tailored for B2B customers, enabling them to conveniently order at pre-arranged prices from anywhere. During client meetings, sales representatives can easily place orders on their mobile devices while simultaneously checking real-time inventory levels. They can also create digital quotes that provide full visibility throughout the sales cycle, which helps your team close more deals efficiently. Furthermore, the ability for customer support and field service teams to respond quickly and resolve issues effectively boosts customer satisfaction and fosters loyalty. Implementing such a system not only optimizes operations but also enhances the overall relationship with your clients, ultimately leading to long-term business success. By investing in this technology, companies can better adapt to market demands and stay ahead of the competition.

Red Technology is a UK-based ecommerce solutions provider and the creator of tradeit™, a cloud-hosted PaaS platform built to manage the challenges of modern digital commerce. Designed for B2B, retail, DTC and international businesses, tradeit™ combines flexibility, scalability and performance, helping organisations grow without being restricted by their technology. Red develops and delivers the platform directly, ensuring every client benefits from continuous innovation, regular enhancements and long-term support. This approach allows businesses to align ecommerce projects with their strategic goals, from launching new channels and replatforming to expanding into global markets. tradeit™ is trusted by mid-market and enterprise organisations in manufacturing, distribution, retail and services. They use it to run multiple brands, customer types and regions from one platform, supported by a responsive, mobile-first design and seamless ERP/CRM integrations that unify back-office operations with customer-facing activity. Key capabilities include: Multi-site & multi-channel management from a single admin. Advanced B2B & B2C features such as customer-specific pricing, catalogues and workflows. International commerce tools covering currencies, languages, taxation and fulfilment. Integrated CMS, PIM and marketing for promotions, loyalty schemes, subscriptions and email. Unified order and customer management with streamlined checkout, shipping and support. The tradeit™ Mobile Application extends ecommerce into iOS and Android, offering a branded, native-quality shopping experience deployed quickly via API. With rich native functionality, tradeit™ reduces reliance on third-party plug-ins, ensuring greater stability, speed and scalability over time. By choosing Red Technology, businesses gain a proven partner that delivers measurable improvements in conversions, mobile performance and long-term ecommerce growth.

Revolutionize the landscape of commerce by challenging conventional practices. Leading brands around the world eschew complex software solutions, choosing instead to leverage the power of Shopify Plus. By doing so, they position themselves among the fastest-growing names in the industry. To date, merchants using Shopify have collectively surpassed $155 billion in global sales. Delivering outstanding customer experiences at every interaction is crucial, and it is essential to acknowledge that modern consumers do not differentiate between digital and physical shopping environments. Your platform must embody this seamless coexistence. Tailor unique customer journeys and manage international storefronts with ease. Take advantage of limitless extensibility, integrations, and personalization options provided by Shopify’s ecosystem of apps and partners. Enjoy a quick and customizable checkout experience, along with the capability to implement custom automations through tools such as Shopify Flow, Launchpad, and Scripts, ensuring that each transaction is optimized for efficiency. With Shopify Plus, you are empowered to transform the very nature of commerce itself, paving the way for innovative retail solutions. Embrace this opportunity to lead your brand into the future of shopping.

Shopamine is a robust, cloud-based solution designed for e-commerce and website building, enabling B2B, B2C, and multi-vendor marketplaces to launch their platforms without requiring any programming skills. Users can quickly establish online stores in mere minutes by employing a single customizable template featuring over 750 adjustable settings. Moreover, the platform's built-in CMS, PIM, and rules engine facilitate AI-powered personalization of storefronts, tailored to different user types, geographical areas, times, and devices. It also supports multi-language domains, integrates real-time checkout options like credit cards and PayPal, automates shipping costs, manages tax calculations including EU VAT, and offers daily backups of crucial data. In addition, it seamlessly connects with ERPs, supplier inventories, various marketplaces, and payment gateways such as Stripe and PayPal, alongside marketing tools like Klaviyo and Mailchimp via open APIs or Zapier. Beyond simply creating a typical online store, it also allows users to develop a multi-seller marketplace, enhancing the shopping experience for customers by providing a diverse range of products from various vendors. This flexibility guarantees that Shopamine effectively addresses the varied requirements of contemporary e-commerce enterprises, making it a valuable asset for any business seeking to thrive in the digital landscape.

A contemporary platform tailored for multi-vendor eCommerce enables rapid launching and scaling of your marketplace. This marketplace model has proven to be 10% more effective compared to traditional eCommerce competitors, resulting in a remarkable 34% surge in site traffic. Companies operating within a marketplace framework benefit from significant growth due to their asset-light structure, an extensive range of SKUs, and an expanded customer reach. Nautical simplifies the process of onboarding vendors through its intuitive self-service tools. Vendors are empowered to transfer their products seamlessly from their existing platforms and catalogs thanks to various integrations and APIs. Each vendor on Nautical can maintain their own dedicated account, which includes their unique product catalog and order management. This flexibility allows vendors to handle their orders using whatever system they find most convenient, fostering an efficient and personalized experience for all involved. With such robust features, Nautical positions itself as an ideal choice for anyone looking to enter the marketplace space.