In 2026, commerce is one thing above all: a system test. Not for the shop system alone, but also for the interaction between payment methods, product data, search, fulfillment and performance. Anyone who grows quickly notices that small frictions add up. A slow checkout costs sales, poor product searches cost shopping carts, and scattered product data costs time and nerves. At the same time, expectations are rising: customers want to find what they are looking for immediately, pay flexibly and be delivered reliably – whether D2C, B2B or multichannel.
In order to provide guidance here, we evaluate thousands of tools every year based on user numbers and ratings. For the OMR Reviews Top 100 Report 2026, thousands of reviews were once again included in the ranking. The excerpt shows which commerce tools will be convincing in practice in 2026.
Order & Ops: Scale multichannel cleanly, automate processes
Billbee: Order processing & item management for multichannel
Billbee automates central e-commerce processes around order processing, invoices and inventory sync. Particularly relevant for growing shops: many integrations (marketplaces, shops, shipping, payments, accounting) and recurring workflows that you no longer want to click on manually.
Ideal for: D2C and multichannel retailers who want to quickly organize orders, invoices and inventories without a major ERP project.
Payments & Checkout: more purchases, more options, less friction
Mollie: Payment service provider with broad coverage
Mollie is a European PSP from the Netherlands with a cloud-based payment platform. The solution integrates “all relevant payment methods” and is used by over 250,000 customers. For the technical connection, there are plugins/modules/integrations for common shop systems; The goal is simple implementation and continuous optimization of digital payment processes.
Ideal for: Founders who want to go live quickly and expand modularly later
easyCredit installment purchase: installment payment as a conversion lever
Installment purchase/BNPL is becoming a conversion lever for many target groups, especially for higher AOVs and price-sensitive purchases.
easyCredit-Ratenkauf enables installment payments for e-commerce, stationary retail and direct sales; The report mentions shopping carts from 200 to 10,000 euros and terms of 2 to 60 months, plus integration via plugin in the shop or at the point of sale.
Ideal for: Higher basket merchants (e.g. furniture, electronics, premium D2C) who want to reduce cart abandonment and offer more payment flexibility.
Onsite Search & Product Discovery: better product search = more sales
DooFinder: AI-based search & discovery
Search is often the most profitable “UX fix” in the shop: whoever searches has the intention to buy. Bad search = expensive ads go to waste. DooFinder is an AI-based search and discovery software for eCommerce. It delivers personalized matches based on real-time preferences without affecting loading times. By analyzing search behavior, even complex queries can be answered precisely and trends can be predicted.
Ideal for: Shops with a large product range where “search” is the most important purchasing path.
Luigi’s Box: Search + Recommender + Shopping Assistant
Luigi’s Box delivers a package of intelligent search (including autocomplete and language processing) plus recommender for personalized up-/cross-sells. There are also product listing functions such as dynamic filters and merchandising options as well as a shopping assistant for interactive purchasing advice. Analytics monitor interactions and show optimization potential. The tool thinks Discovery is broader than a “search bar”: navigation, recommendations and assistants contribute directly to AOV and conversion.
Ideal for: Commerce teams who want to make search not just “better”, but as a product discovery system with measurable uplift (navigation, recommendations, shopping cart).
Product Information Management: Data as a growth engine
4ALLPORTAL: Modular platform that connects DAM & PIM
As soon as you use more than one channel (shop, marketplaces, B2B, retail), PIM/DAM decides whether you scale or sink into Excel/asset chaos. 4ALLPORTAL connects DAM and PIM to centrally manage media and product data and distribute them automatically into channels. There is a RESTful API for connecting to third-party systems (e.g. ERP/CRM), automated workflows, AI-supported keywording, precise rights management and support for the digital product passport.
Ideal for: Startups that want to centrally control content & product data
entities.io: “slim” PIM for B2B medium-sized companies
Lean PIMs are exciting if you want early structure without enterprise overhead. entities.io positions itself as a PIM for B2B medium-sized businesses: “lean, quickly ready for use” and without expensive partner dependencies. It makes complex product data and structures flexibly controllable, supported by automation and AI. This works, among other things, through modern import/export engines, intuitive UI and a transparent SaaS model
Ideal for: B2B startups that need an early “single source of truth” for product data without purchasing enterprise overhead.
Multichannel Operations: Automate orders, inventory, invoices
Billbee: Multichannel retail with strong process automation
Billbee automates order processing and item management: It centralizes processes and offers 120+ interfaces to marketplaces, shop systems, shipping and payment service providers as well as accounting tools. Workflows automate recurring tasks; Core functions include order processing, invoice creation/shipping and real-time synchronization of inventories.
Ideal for: Multichannel startups that need to scale back office and inventory before a large ERP project makes sense.
In 2026, commerce tech will be: more data-focused, closer to conversion, and more modular
The top 100 ranking shows clearly: In 2026, growth will be determined by how well the building blocks behind the shop system work together. This is exactly why the report primarily includes tools that directly target conversion and operational scaling. The most important insight for founders and early teams is: It’s not the biggest stack that wins, but the cleanest one.
What does that mean specifically?
1) Fix the money flow first: Payment & Checkout
If your checkout isn’t frictionless, every additional marketing dollar brings you less. A reliable PSP and payment options that fit your shopping cart are often the quickest way to get started.
2) Automate Ops before opening “more channels.”
Multichannel sounds like growth, but without automation it is often just more complexity. Tools for ordering and ordering processes are prominent in the report for a reason: They prevent your team from getting lost in support tickets and manual workflows as they grow.
3) Search field = revenue engine
For larger product ranges, onsite search often has a greater impact on sales than the homepage. If users don’t find what they’re looking for, you’ll lose them. The fact that search/discovery tools appear in the ranking is a clear indication that many shops are retrofitting them.
4) Product data is not a backend issue
At the latest when you have variants, bundles, international channels or B2B logic, product data maintenance becomes a bottleneck. PIM/DAM is then the basis for bringing new products live more quickly and using channels cleanly.
5) Infrastructure is the silent co-founder
Performance problems are conversion problems. And downtime is not only annoying, but expensive. The fact that hosting/cluster solutions appear in the ranking underlines the fact that above a certain size, stability is a strategic advantage.
About the author
Marvin Müller is VP Marketing at OMR Reviews and has been there since the beginning. After working at Google (Lead Generation & Media), he was one of the first employees to move to OMR Reviews to build marketing from the ground up. Today he and his team are responsible for the go-to-market strategy and the growth of the platform – and he deals daily with how software buyers research, compare and make purchasing decisions. By working on one of the leading B2B software information platforms in DACH, he brings data- and practical insights into evaluation signals, buying intent and the factors that really influence software decisions.
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