B2B E-commerce Agencies in 2026: Ten Firms Scored on ERP, Pricing and Proof

Chicago-headquartered Atwix, independent and founder-led since 2006 with a European office in Bratislava, positions itself as the integrator manufacturers, distributors and retailers go to, and its pages back the positioning with three things the rest of the set publishes only in part.

The first is ERP as a product. Sirius ERP Connector syncs Epicor Prophet 21, Infor, Kodaris and Expertek with Adobe Commerce, Shopware 6 and Shopify in real time, with Salesforce and HubSpot on the CRM side, in 6 to 12 weeks. A separate Infor pre-integrated solution covers CloudSuite Distribution, SX.e, FACTS, A+ and M3 at $75,000-$150,000 over 8 to 12 weeks. The ERP services page adds SAP Business One, Dynamics 365, Oracle ERP Cloud and NetSuite, with a published timeline per ERP and platform (Epicor, for example, in 6-10 weeks on Adobe Commerce and 4-6 weeks on Shopify). The cases carry the systems. Turf Care, an Atwix Adobe Commerce and Infor CSD client with a rebuilt sync and an interactive parts diagram, has grown revenue roughly 70% in five years. Graphic Solutions Group runs Adobe Commerce with Infor CSD and Kodaris for real-time inventory and customer-specific pricing. Atwix built Halron's Shopware B2B storefront, integrated with Infor CloudSuite Distribution, with pricing logic mapped to the ERP and every product, order and Ship-To pairing syncing correctly. Byrne Electrical launched an Adobe Commerce Cloud B2B portal with customer shipping accounts, non-catalog products and ERP order transfer in eight weeks, on the Epicor integration Atwix's Magento ERP page describes, and Atwix's Infor solution page reports a 35% improvement in order accuracy for Byrne. PowerPak reports 230% ecommerce growth in the year after its Adobe Commerce migration, with quick-order B2B buying.

The second is platform breadth with partner tiers. Adobe Gold Solution Partner (announced May 2022; 47 Adobe Certified Experts, 32 Professionals, 5 Masters). Shopware Platinum with 113 certifications listed in Shopware's own directory. A Plus partner in Shopify's Partner Directory, where Atwix's profile features its role in Burpee's 2026 migration from Adobe Commerce to Shopify Plus, alongside the brand's internal team. BigCommerce partner with its own apps. Adobe's own blog confirmed Atwix as the top contributing Magento partner in 2019; Atwix reports the top spot every year 2018 to 2025.

The third is pricing. The B2B agency page publishes an investment table: Adobe Commerce B2B $75K-$200K+, Shopware B2B $60K-$175K, BigCommerce B2B $50K-$150K, ERP integration $25K-$75K, custom B2B $100K-$300K+, platform migration $50K-$150K, with fixed-price contracts and detailed scope documentation. Its B2B eCommerce Association directory listing names mid-market and enterprise clients.

ERP as a product and published pricing earn full marks on ERP proof and mid-market commercial fit, and partnerships on four platforms, three of them at the upper tier, earn 18 of 20 for credentials. External validation is strong: listed on the Inc. 5000 in 2024 (No. 273) and again in 2025, a 2024 Inc. Power Partner award, membership of the B2B eCommerce Association, and a 4.9 rating across seven reviews on Clutch.

Chicago-based Uncap, 22 people by its own count, works only with manufacturers, distributors and wholesale brands blending B2B and B2C on Shopify Plus. The review file is the largest in the set: 5.0 across 75 on Clutch, 5.0 across 65 on the Shopify directory (Platinum tier, partner since May 2013), plus Google and Trustpilot scores it publishes on its homepage. Shopify published its own case study of the ULE Group build, naming Uncap as the partner.

The B2B mechanics are all evidenced at ULE Group: real-time Epicor sync across a million-plus SKUs, account-based pricing, cart-level convert-to-quote, custom catalogs and payment terms; Uncap reports 6x online sales and 559% traffic growth year over year. Kooks Headers moved to Shopify with an Infor Visual integration and year-make-model fitment, with 22% higher conversion and 38% lower total cost of ownership reported. Uncap ships its own tooling: Uncap Connect (ERP hub), Uncap Quotes (CPQ), Uncap Garage (fitment), Uncap Portal. Its homepage lists NetSuite, Dynamics, Acumatica, Sage, SAP, Epicor, Infor, Oracle, Odoo, Brightpearl, Cin7, Fishbowl and QuickBooks as integration targets.

Commercial fit is strong but partial: published integration prices (Uncap Connect from $8,000 plus $390 a month; Epicor P21 integrations $40,000-$80,000 foundational, $80,000-$150,000+ full), a $7,500 fixed-price "Blueprint" discovery, a $25,000 Clutch minimum at $100-$149 an hour, and no build bands. Platform breadth is the structural cap: Shopify only. That is a feature if you have chosen Shopify and a risk if you have not.

Westport, Connecticut-based Zaelab, founded in 2012, is the enterprise-manufacturer option, positioned as the customer-to-cash specialist for complex B2B companies. Its June 2025 merger with TMG, announced as a consultancy focused on modernizing B2B enterprises, took it past 350 people. It brings SAP and commercetools partnerships, a Shopify Plus practice expanded with the Trellis acquisition in November 2024, BigCommerce work, and Logik.io CPQ as a standing partner. Its own integration platform, Fuse, connects the store to SAP S/4HANA and SAP ECC, with framework connectors for NetSuite, JD Edwards, Epicor and Infor. Clutch shows a $100,000 minimum and no reviews; the Shopify directory listing (Plus tier) has none either.

The cases name the systems and the numbers. Simpson Strong-Tie runs a composable front end over SAP Hybris with Logik.io configuration and reports that more than 60% of sales now flow through digital channels. Gesswein moved from BigCommerce to Shopify B2B with an Acumatica integration and role-based portals, with 101% more transactions and 343% more visitors reported. E.B. Bradley, a building-materials distributor, runs Adobe Commerce with an Expertek ERP integration, account hierarchies and advanced pricing rules, and passed $1 million in monthly online revenue in April 2025. Topcon, ESAB, Sarnova and Titleist run SAP Commerce Cloud; Hubbell runs commercetools. Portul, Zaelab's Shopify B2B suite, is featured by Shopify.

Stockholm-based Vaimo, 650+ staff across 16 markets and still run by its founders, is an Adobe Gold partner and Adobe's 2023 Digital Experience Emerging Partner of the Year for EMEA, with commercetools, Shopify, Akeneo and Algolia alongside. Clutch shows 4.8 across four reviews, a $100,000 minimum and $100-$149 an hour. Vaimo prices delivery as fixed-price Work Items under its Partnership 2.0 model.

Audax, a Dutch distribution and logistics group, is the B2B case: Adobe Commerce Cloud with SAP via Dell Boomi, custom pricing, company roles and permissions, quick checkout by GTIN, six-plus sites consolidated and seven million products in Algolia. Bunzl's BunzlOne procurement platform and Helly Hansen's B2B work are named without figures. No US office is confirmed on Vaimo's pages.

Austin-based Klizer is the professional-services brand DCKAP launched in August 2023, with a team of 100+ across the US and India. Its products are the reason it scores full marks on ERP: DCKAP Integrator lists Epicor Prophet 21, Epicor Eclipse, SAP, NetSuite, Infor, Dynamics 365 Business Central, Sage, TrulinX, Global Shop Solutions and Distribution One; DCKAP PIM and DCKAP EDI sit alongside it. Western Pacific, a foodservice-equipment distributor, runs Adobe Commerce with customer-specific pricing pulled live from the ERP and role-based approvers; Klizer reports 100% automated pricing, 20+ manual hours saved a week and 99.9% integration uptime. Berk Enterprises pulls customer-specific pricing directly from Epicor P21, with quick order by CSV upload, shopping lists and role-based approvers. C-Line Products, a manufacturer, runs Magento 2 with an Epicor P21 integration.

Platform partnerships (Adobe Commerce, BigCommerce, Shopify Plus, Shopware) are stated without tiers. Clutch shows a $25,000 minimum and $50-$99 an hour for DCKAP and no reviews under either name yet.

Springfield, Missouri-based Classy Llama, founded in 2007, makes B2B portals and dealer portals on Adobe Commerce its headline service and was a 2025 top-three finalist for Mid Ecommerce Agency System Integrator at the B2B Ecommerce Awards. Credentials span platforms: Adobe Silver with 47 Adobe certifications, 17 BigCommerce certifications including B2B, 5 Shopify certifications, 3 Celigo certifications, Hyvä Silver. Clutch shows 4.9 across seven reviews, a $50,000 minimum and $150-$199 an hour.

Client stories are all B2B: US Lumber, Advanced Flow Engineering, Inorganic Ventures (compliance-heavy chemicals), R&R Products, Prosoco, All State Ag Parts (fitment). US Lumber runs real-time ERP pricing and availability with dealer-specific pricing across its dealer network. None names its ERP; Celigo is the stated integration layer, which is why the ERP pillar sits at 7.

Plano, Texas-based Creatuity, founded in 2008 and privately held, is a small senior team for B2B manufacturers, distributors and complex retailers. Blend Supply, an industrial supplies distributor with five warehouses, runs Adobe Commerce with an Epicor Prophet 21 integration and Akeneo, contract and tier pricing, parent and child accounts, a quick order pad and sales-rep ordering on behalf of customers. Two bedding clients run against NetSuite with zero-downtime deployments and 12,000+ concurrent users. Rural King migrated to Adobe Commerce Cloud; Worthington Direct's Hyvä build scores 98 on Lighthouse. Creatuity also publishes an Adobe Commerce ERP integration playbook for B2B.

Adobe tier is not stated (absent from the Gold and Platinum lists), Hyvä Silver is verified, and Shopify Plus and BigCommerce are listed. Clutch shows 4.7 across three reviews, a $25,000 minimum and no rate.

Wagento, with offices in McLean, Minnesota, Iowa and Pune and 40+ certified developers, is an Adobe Solution Partner and a Shopware Silver partner positioned as a B2B agency for manufacturers and distributors. Lapp Tannehill, a wire and cable distributor, runs Adobe Commerce with an Epicor Prelude integration built on DCKAP connector technology: customer-specific pricing, quote requests, order and invoice viewing, and 300+ B2B customer company accounts created via API integration. Epicor, SAP, Dynamics and NetSuite are listed as targets. Clutch shows 4.8 across three reviews, a $10,000 minimum and $100-$149 an hour.

New York-based Web Solutions NYC, founded in 2008, is a senior-only shop ($200-$300 an hour on Clutch, $50,000 minimum, 5.0 across seven reviews) that names manufacturers, distributors and wholesalers with large catalogs, customer-specific pricing, rep portals and ERP integration as its market, and says plainly that it does not serve early-stage startups or budget-focused buyers. It carries a Shopware Platinum badge on the US directory and a long Magento history.

The ERP page lists NetSuite, Dynamics, SAP, Acumatica and Epicor, and no fetched case attaches one to a client; the flagship B2B engagement, Restaurant Depot, is a strategy project rather than a live store. That gap between capability list and client-attributed proof is why the ERP pillar sits at 8.

Cincinnati-based InteractOne, founded in 1998, targets mid-market manufacturers and distributors doing $1M-$50M online with complex catalogs, custom pricing and quote workflows. Versa Valves, an industrial-valve maker with a 75,000-part catalog, runs Adobe Commerce with Epicor Commerce Connect, delivered in three months and 30% under budget by InteractOne's account. Adobe Bronze, BigCommerce and Shopify partnerships; Clutch shows no reviews, a $10,000 minimum and $150-$199 an hour, and a service mix weighted to SEO and design.