What’s the best B2B platform in 2026?

The B2B e-commerce market in 2026 is a world away from what it looked like just a few years ago. When thinking about digital transformation, companies now expect full integration with ERP and PIM, personalised offers, automated sales rep workflows, and stability at high order volumes.

When it comes to the best B2B platform, it all depends on the business model, the scale of operations and the organisation’s growth ambitions.

Below, you’ll find a comparison of five solutions that genuinely matter in the market, along with their strengths and implementation challenges. At the end, we’ll offer advice on choosing a platform suited to your company.

Key takeaways:

In practice, the best B2B platforms are:

ONe for companies looking for a fast start with a SaaS model

Adobe Commerce for organisations needing enterprise-class scalability

Univio.Commerce for complex and non-standard sales models

commercetools and VTEX for companies building a flexible composable architecture and expanding multichannel sales

Types of B2B platforms – which type should you choose?

Before answering the question of which is the best B2B platform, it’s worth laying out the basics. B2B systems differ not just in their features, but above all in their technology model and implementation approach. In practice, there are four main types of solutions.

1. SaaS platforms

These are solutions available on a subscription model, maintained entirely by the vendor. The company uses ready-made cloud infrastructure and doesn’t need to manage servers or updates. The SaaS model lets you get started quickly and forecast costs, so you know straightaway how much a B2B platform will cost.

It works well where sales processes are relatively well organised and don’t require deep intervention in the system core. A good example is ONe, designed as a ready-made B2B solution.

2. Enterprise platforms (open source / mature ecosystems)

These are highly flexible systems, with extensive customisation options and a broad integration ecosystem. They allow you to scale sales globally, combine B2B and B2C models, and build advanced marketing scenarios.

However, they require strong technology capabilities and a well-thought-out implementation architecture. Adobe Commerce (Magento 2) falls into this category – a solution frequently chosen by large organisations.

3. Dedicated platforms

These are solutions designed for a specific company’s needs, or developed as proprietary technology for complex sales models. They offer the greatest freedom to reflect organisational structures, individual price lists or unusual sales processes.

Implementation takes the form of a project and requires thorough business analysis, but in return allows you to avoid compromises. Univio.Commerce falls into this category.

4. Composable platforms (MACH / API-first)

This is the most flexible architectural approach. The system is built from independent microservices that can be developed and scaled separately. The platform isn’t a monolith, but a set of specialised components connected via APIs.

The composable model offers enormous freedom for integration and development, but requires technological maturity on the organisation’s part. This approach is found in the commercetools platform, and in the unified commerce model (a strategy of integrating all sales channels around a single technology backend), VTEX also uses an architecture aligned with MACH principles.

The best B2B e-commerce platforms in 2026

Choosing e-commerce technology can’t be left to chance. Below are the platforms that are genuinely shaping the direction of the B2B market. They differ in architecture, implementation model and scale of capability, but each is proven in business practice.

Adobe Commerce (formerly Magento Enterprise)

One of the most recognisable enterprise-class solutions. Regularly appears in Gartner and Forrester reports as a market leader.

Advantages of Adobe Commerce:

Advanced personalisation and AI: the Adobe Sensei engine enables precise product recommendations and marketing automation.
Huge scalability: over 3,600 modules on the Marketplace, plus numerous out-of-the-box features, offer almost unlimited scope for growth.
Headless architecture: easy to build shopping experiences across different channels (mobile, social, apps).
Support for multichannel and multibrand growth: managing B2B and B2C e-commerce within a single environment.
Enterprise support and Adobe Commerce Cloud: SLAs and stable infrastructure.

Challenges with Adobe Commerce Implementation requires an experienced development team, significant client involvement, and considerable financial investment.

Who is Adobe Commerce suited to?

Large organisations with complex processes that need specific integrations, extensive personalisation and global scalability.

ONe – a ready-made SaaS solution for B2B

The first ready-made SaaS business solution, designed specifically as a B2B sales platform.

Advantages of the ONe platform:

Fast implementation – ready-made features plus the Unilinker plugin for integrating with ERP and PIM.
Subscription model – system development and maintenance included in the subscription price.
Sales Rep Panel – real support for the sales team.
Dynamic cart – customer and sales rep can work together on the same order in real time.

Challenges with the ONe platform: Limited ability to modify the system core – as a ready-made solution, it offers less freedom than individually built platforms.

Who is ONe suited to?

Companies that want to move quickly into B2B e-commerce and aren’t planning to build complicated, non-standard processes.

Univio.Commerce – technology for complex B2B models

Univio’s proprietary technology, developed over more than a decade with market leaders and companies with unusual sales structures in mind.

Advantages of Univio.Commerce:

Full mapping of complex B2B structures: roles, permissions, multi-level price lists.
No vendor lock-in: a popular technology stack (PostgreSQL, Zend).
Proven performance: installations handling over 1,000,000 orders.
Advanced price management: individual price lists for groups of trading partners.

Challenges with Univio.Commerce:

Project-based nature: implementation requires thorough analysis and a longer project phase than in a SaaS model.

Who is Univio.Commerce suited to?

Organisations where other solutions aren’t able to reflect their real business processes.

VTEX – next-generation unified commerce

A unified commerce platform designed in line with the MACH approach (microservices, API-first, cloud, headless).

Advantages of VTEX:

B2B, B2C and marketplace support within a single system
Built-in OMS: managing orders and stock levels.
MACH architecture: flexible development with no technology barriers.
Low-code environment (VTEX IO): faster implementation of changes.

Challenges with the VTEX platform: Feature richness: with simple B2B models, some capabilities may go unused.

Who is VTEX suited to?

Companies planning an omnichannel model or looking to develop their own marketplace.

commercetools – composable commerce in practice

A pioneer of the composable commerce approach and MACH architecture.

Advantages of commercetools:

Extreme flexibility: microservices developed independently.
Cloud-native: infrastructure built on AWS and Google Cloud.
API-first: very easy integration with CRM, ERP and other systems.
Technology freedom: compatible with React, Angular, Vue.

Challenges with commercetools: Skill requirements: building a coherent system from individual modules requires an experienced team.

Who is commercetools suited to?

Technologically mature companies looking to build a competitive edge through a composable architecture.

How do you choose the best B2B platform?

The right choice of B2B trading platform depends on the sales model, the scale of the organisation, and the direction of business growth.

Adobe Commerce is a good choice for large, often international organisations that combine B2B and B2C sales, need advanced personalisation and a broad integration ecosystem. It’s a solution for companies thinking globally and ready to invest in enterprise-class technology.

ONe works well for companies that want to launch digital B2B sales quickly, organise their processes and take the load off sales reps. It’s a sensible choice for organisations expecting predictable costs and ready-made features without a lengthy project phase.

Univio.Commerce answers the needs of companies with complex sales structures, multi-level price lists, non-standard approval processes and specific models of working with trading partners. It’s a solution for organisations where standard platforms require too many compromises.

VTEX performs best in omnichannel environments and where B2B forms part of a broader commercial strategy that includes B2C or marketplace. It’s the platform for companies wanting to manage multichannel sales within a single, consistent system.

commercetools is the choice for technologically mature organisations looking to build a competitive edge based on a composable architecture and microservices. It works well where maximum flexibility, rapid iteration and full control over the IT ecosystem are essential.

Summary

2026 leaves no doubt that B2B e-commerce is now the foundation of sales, not just an additional channel. Companies that invest in well-matched technology gain an edge in operational efficiency, speed of service and the quality of their customer relationships.

If you’re facing a B2B platform decision, or want to check whether your current solution still supports your organisation’s growth, it’s worth having a conversation.

Univio’s experts have been delivering e-commerce projects for market leaders for over 25 years. We’re happy to analyse your needs, advise on the best direction, and help you make a decision that’s sound both technologically and commercially.

FAQ – frequently asked questions: the best B2B platform in 2026

How much does a B2B platform cost?

The cost depends on the implementation model (SaaS vs a dedicated project), the scope of integration, and the number of users. With a SaaS model, you start from a monthly subscription. For enterprise projects, the budget is set individually.

Which platform is best for B2B marketing?

In terms of advanced personalisation and marketing automation, Adobe Commerce stands out thanks to its use of AI (Adobe Sensei). In composable models, integrating marketing automation with commercetools or VTEX also offers considerable capability.

In practice, the best marketing platform is one that allows integration with CRM, marketing automation and analytics systems, without compromising on data.

e-commerce B2B