Best B2B eCommerce Agencies - Top 12 Compared Honestly

Last updated: July 24, 2026 · 18 min read · By Joe McFerrin, CEO of IWD Agency

B2B ecommerce punishes generalist agencies. A DTC storefront can survive a mediocre build; a distributor site with 40,000 SKUs, customer-specific contract pricing, and an ERP that owns every number cannot. The B2B ecommerce agency you hire either understands company accounts, quote-to-order workflows, punchout, and net terms as first-class requirements, or you find out mid-project that they have only ever shipped consumer stores.

This guide profiles 12 agencies with verifiable B2B ecommerce practices, scores them on the dimensions that decide B2B project outcomes, and closes with a decision framework that names a competitor whenever a competitor is the better fit. We publish it, we rank ourselves first against public criteria, and the methodology section shows the scoring so you can challenge it.

This page is evergreen: profiles and pricing are re-verified on a rolling basis, and the updated date above reflects the last review.

The 30-Second Verdict

If you are scanning:

• Distributor or manufacturer with ERP as the system of record: IWD Agency, Classy Llama, Wagento
• Enterprise B2B on composable or SAP-adjacent stacks: Zaelab, Pivotree, Vaimo
• B2B on Shopify Plus or BigCommerce specifically: IWD Agency, Groove Commerce, 1Digital
• Global multi-region B2B: Vaimo, Inviqa, Americaneagle
• Budget-constrained mid-market B2B: Net Solutions, Optimum7

Tier	Agency	Best for	GMV bracket
01	IWD Agency	ERP-integrated B2B across Magento, Shopify, BigCommerce	5M – 500M+
02	Zaelab	Enterprise B2B strategy + composable builds	25M – 500M
03	Pivotree	Enterprise commerce + data management	25M – 1B
04	Vaimo	Global enterprise B2B + B2C	10M – 500M
05	Classy Llama	Manufacturing + distributor replatforms	5M – 50M
06	Wagento	Midwest US B2B Magento veteran	3M – 25M
07	Groove Commerce	Mid-market B2B on BigCommerce + Shopify	2M – 30M
08	Americaneagle	Full-service US enterprise delivery	10M – 250M
09	1Digital	BigCommerce-centered B2B builds	1M – 20M
10	Inviqa	European enterprise B2B	25M – 250M
11	Net Solutions	Hybrid US/India delivery value	3M – 30M
12	Optimum7	Migration-heavy mid-market builds	1M – 20M

What Separates a Real B2B Agency From a DTC Shop

Five dimensions decide whether an agency can actually ship B2B. Score every candidate on them before you compare portfolios.

1. B2B feature fluency. Company accounts with buyer roles and approval chains, customer-specific catalogs and price lists, quote-to-order, requisition lists, net terms and credit limits, punchout (cXML/OCI) for procurement customers. An agency that has to look these up is learning on your budget.
2. ERP integration depth. In B2B the ERP owns pricing, inventory, and customer terms. The storefront must read them live or reconcile constantly. Named ERP projects (NetSuite, SAP, Microsoft Dynamics, Acumatica, Epicor) beat generic "we do integrations" claims every time.
3. Platform breadth with a point of view. B2B lives on Adobe Commerce, Shopify Plus B2B, BigCommerce B2B Edition, and composable stacks. Single-platform agencies recommend their platform every time; the honest answer depends on your catalog complexity and ERP.
4. Vertical proof. Distributor and manufacturer projects look nothing like fashion DTC. Ask for named clients in industrial, medical, parts, or wholesale verticals and check that those stores are still live.
5. Post-launch economics. B2B stores change constantly (price lists, catalogs, integrations). The retainer model, response SLAs, and who exactly staffs it matter more than the build quote.

The Top 12 B2B eCommerce Agencies, Profiled

Every agency below runs a verified B2B commerce practice confirmed against partner directories, live client storefronts, and public case studies. Disclosure up front: IWD Agency publishes this guide and ranks itself first against the same criteria. The methodology section shows the scoring, and the decision framework recommends other shops by name where they beat us.

01. IWD Agency

Quick stats: Building B2B commerce since 2008 · 300+ brands shipped · Offices in Austin, Barcelona, São Paulo, and Warsaw · 4.8/5 across 800+ verified client reviews · 94% client retention

Headquarters: Austin, Texas.

Specialties: ERP-integrated B2B storefronts where the back office and the website agree on every number: company accounts, customer-specific catalogs, contract pricing read live from NetSuite, SAP, or Microsoft Dynamics, quote-to-cart workflows, and punchout for procurement-driven buyers. In-house NetSuite connectors for Magento, Adobe Commerce, Shopify, and BigCommerce. The structural differentiator: certified practices on all three major B2B platforms, so the platform recommendation follows your catalog and ERP rather than the agency's only skill.

Notable clients: QC Supply (Adobe Commerce B2B with Microsoft Dynamics NAV), BinMaster, Circle Y Saddles, Marucci Sports, Purdue University, Adtran.

Pricing: 85K to 250K typical B2B build. 125K to 350K with deep ERP integration and custom quote workflows.

Best for: Manufacturers, distributors, and wholesalers from 5M to 500M+ GMV whose ERP is the system of record, and brands that want the Magento-versus-Shopify-versus-BigCommerce question answered on evidence instead of agency bias.

02. Zaelab

Quick stats: B2B-only positioning · US-based with distributed delivery · Partnerships across composable and enterprise commerce platforms

Headquarters: United States (East Coast).

Specialties: Zaelab is one of the few agencies that markets itself as B2B-only, and the practice matches the pitch: digital commerce strategy for manufacturers and distributors, composable and enterprise platform builds, and connected-commerce work that ties storefronts to ERP, CPQ, and dealer networks. Stronger on strategy and enterprise architecture than on quick mid-market builds.

Notable clients: Enterprise manufacturers and industrial distributors, largely under NDA-style case studies with named verticals.

Pricing: 150K to 600K+ typical enterprise engagement.

Best for: Enterprise manufacturers at 25M+ GMV that need strategy and architecture, not just a build, especially on composable or SAP-adjacent stacks. For mid-market builds with a fixed budget, the platform specialists below deliver more store per dollar.

03. Pivotree

Quick stats: Toronto-headquartered public company · Enterprise commerce, master data management, and managed services under one roof

Headquarters: Toronto, Canada.

Specialties: Pivotree combines enterprise B2B commerce implementation with the unglamorous work that makes B2B function at scale: product data management, catalog normalization, and managed operations. If your B2B problem is really a data problem (500K SKUs across acquisitions, six part-numbering schemes), Pivotree's MDM practice is the differentiator no build-only agency matches.

Notable clients: Enterprise B2B distributors and retailers across North America.

Pricing: 200K to 1M+ typical enterprise engagement, plus managed-services contracts.

Best for: Enterprises at 25M+ GMV whose bottleneck is product data quality and operational scale as much as the storefront. Overkill for mid-market builds.

04. Vaimo

Quick stats: Founded 2008 · 14 offices across Europe, the US, the Middle East, and APAC · 500+ enterprise commerce projects

Headquarters: Stockholm, Sweden.

Specialties: Global enterprise B2B and B2C on Adobe Commerce and composable stacks, with deep PIM practice (Akeneo, inRiver) that matters enormously for catalog-heavy B2B. The go-to for multi-region B2B storefronts across languages, currencies, and tax regimes.

Notable clients: Helly Hansen, Diesel, Carlsberg, plus a deep European B2B distribution roster.

Pricing: 200K to 750K typical enterprise build.

Best for: Global brands at 25M+ GMV running B2B across 5+ countries. US-only mid-market distributors will find leaner fits among the US shops on this list.

05. Classy Llama

Quick stats: Founded 2007 · 100+ specialists · Replatform-focused practice built on manufacturer and distributor migrations

Headquarters: Springfield, Missouri.

Specialties: One migration at a time since 2007, Classy Llama built one of the deepest reference rosters for ERP-connected B2B replatforms in the US mid-market: NetSuite, Acumatica, and Microsoft Dynamics integrations for industrial brands moving off legacy systems.

Notable clients: Mid-market industrial distributors and manufacturers across North America.

Pricing: 75K to 200K typical build. 100K to 280K with deep ERP integration.

Best for: Manufacturers and distributors at 5M to 30M GMV replatforming from legacy systems onto Adobe Commerce. For the same project with platform optionality on the table, IWD is the cross-platform alternative.

06. Wagento

Quick stats: Founded 2008 · 80+ team · B2B book concentrated in industrial and distributor brands

Headquarters: Onalaska, Wisconsin.

Specialties: A long-running US Magento shop whose B2B work skews industrial: distributors, parts sellers, and manufacturers across the upper Midwest. No-frills communication, named developers, and Magento tenure dating to the platform's first era.

Notable clients: Mid-market US distributors and manufacturers.

Pricing: 60K to 180K typical build. 80K to 240K with B2B and ERP integration.

Best for: Midwest and East Coast B2B brands at 3M to 25M GMV on Magento or Adobe Commerce that value regional cultural fit and tenure over design-led positioning.

07. Groove Commerce

Quick stats: Founded 2007 · Baltimore HQ · BigCommerce Elite and Shopify partner with a HubSpot marketing practice attached

Headquarters: Baltimore, Maryland.

Specialties: Mid-market B2B on SaaS platforms: BigCommerce B2B Edition and Shopify Plus builds for distributors and brands that want lower total cost of ownership than Adobe Commerce. The attached HubSpot practice makes them a fit for B2B brands treating the store as part of a demand-gen funnel rather than a standalone catalog.

Notable clients: Mid-market US B2B and DTC brands on BigCommerce and Shopify.

Pricing: 50K to 160K typical build.

Best for: B2B brands at 2M to 30M GMV committed to SaaS platforms who also want marketing operations in the same shop. For heavy ERP integration or six-figure SKU counts, the Adobe-side specialists run deeper.

08. Americaneagle

Quick stats: Web practice since 1995 · 500+ staff · Multi-platform commerce inside a full-service agency

Headquarters: Des Plaines, Illinois.

Specialties: The vendor-consolidation option: B2B commerce delivery plus hosting, design, and digital marketing under one enterprise-friendly roof, across Adobe Commerce, BigCommerce, Shopify, and Sitecore-adjacent stacks. Formal account management that procurement teams like and boutique-minded merchants find heavy.

Notable clients: Enterprise and upper-mid-market US organizations across B2B, retail, sports, and associations.

Pricing: 100K to 400K+ typical enterprise engagement.

Best for: Enterprises at 10M+ GMV consolidating web, commerce, and marketing with one vendor. Specialists beat them on B2B depth per dollar.

09. 1Digital

Quick stats: Philadelphia HQ · BigCommerce-centered practice with Shopify coverage · Design, development, and SEO under one roof

Headquarters: Philadelphia, Pennsylvania.

Specialties: One of the better-known BigCommerce-focused shops, with a steady line of B2B Edition builds for smaller distributors and wholesalers: customer groups, price lists, quote flows, and the pragmatic integrations (shipping, tax, mid-tier ERPs) that segment needs.

Notable clients: SMB and mid-market US merchants on BigCommerce and Shopify.

Pricing: 30K to 120K typical build.

Best for: Wholesalers at 1M to 20M GMV standing up B2B on BigCommerce without enterprise overhead. For complex ERP sync or six-figure catalogs, step up to the specialist tier.

10. Inviqa

Quick stats: Founded 2003 · London HQ · Part of Havas CX · Multi-region European delivery

Headquarters: London, UK.

Specialties: Enterprise European B2B with the compliance depth that market requires: GDPR, regional tax and duty handling, multi-language storefronts. The Havas CX parent adds brand and creative muscle for B2B brands that also sell direct.

Notable clients: European enterprise B2B and B2C brands, plus US brands expanding into Europe.

Pricing: 150K to 500K+ typical enterprise build.

Best for: European enterprises at 25M+ GMV, or US B2B brands opening EU operations. For US-only projects, the domestic shops above are cleaner fits.

11. Net Solutions

Quick stats: Founded 2000 · 200+ team across US and India · Hybrid onshore/offshore delivery

Headquarters: San Diego, California, with delivery centers in India.

Specialties: Commerce inside a broader software practice, priced 30-50% below pure-US competitors through hybrid delivery. Handles B2B builds with custom integration work where the scope is defined and the merchant brings project-management discipline.

Notable clients: Mid-market US brands across verticals.

Pricing: 50K to 150K typical build. 75K to 220K with extensive customization.

Best for: B2B brands at 3M to 25M GMV where budget binds and internal PM capacity exists. Deep quote-workflow and punchout projects belong with the specialist tier.

12. Optimum7

Quick stats: Miami HQ · Migration-specialist positioning across BigCommerce, Shopify, and Magento · Development plus marketing services

Headquarters: Miami, Florida.

Specialties: High-volume platform migrations, including the messy legacy carts (Volusion, 3dcart-era stores, custom PHP) that other agencies decline, plus custom functionality work for B2B use cases on SaaS platforms.

Notable clients: SMB and mid-market US merchants across many verticals.

Pricing: 25K to 100K typical migration or build.

Best for: Merchants at 1M to 20M GMV escaping a legacy cart with B2B requirements in the destination. For ERP-integrated enterprise B2B, use the specialist tier.

Head-to-Head Comparison Matrix

Capability	IWD	Zaelab	Pivotree	Vaimo	Classy	Groove
B2B feature depth	★★★★★	★★★★★	★★★★	★★★★★	★★★★★	★★★
ERP integration	★★★★★	★★★★	★★★★	★★★★	★★★★	★★★
Platform breadth	★★★★★	★★★★	★★★★	★★	★	★★★
Product data / PIM	★★★	★★★	★★★★★	★★★★★	★★★	★★
Punchout / procurement	★★★★	★★★★★	★★★★	★★★★	★★★	★★
Mid-market economics	★★★★	★★	★	★★	★★★★	★★★★★
Global delivery	★★★	★★★	★★★	★★★★★	★★	★

★★★★★ deepest on this list · ★★★★ strong · ★★★ competent · ★★ basic · ★ limited

What B2B eCommerce Development Actually Costs

B2B builds price above equivalent DTC builds because the invisible work is bigger: pricing logic, account structures, and integration. Realistic current brackets:

Engagement type	Low	High	Timeline
B2B build on Shopify Plus / BigCommerce B2B	50K	180K	12-22 wks
B2B build on Adobe Commerce	125K	400K	22-36 wks
ERP integration (productized connector)	15K	60K	4-10 wks
ERP integration (custom bidirectional)	40K	150K	8-20 wks
Punchout (cXML/OCI) implementation	20K	80K	6-12 wks
Ongoing retainer (mid-market B2B)	8K/mo	25K/mo	ongoing

The two variables that move budgets most: catalog complexity (customer-specific catalogs and contract pricing multiply testing scope) and integration architecture (real-time ERP reads versus scheduled sync is an architecture decision with a six-figure delta). Scope both before collecting proposals or the proposals will not be comparable.

Decision Framework

Questions to Ask Every B2B Agency

1. Show me three live B2B client stores with company accounts and customer-specific pricing. DTC portfolios do not count.
2. Which ERPs have you integrated, with named projects? Then ask what broke during those integrations. Real veterans have war stories; pretenders have feature lists.
3. How would you architect contract pricing for us: live ERP reads or scheduled sync? There is no universally right answer, but there is a reasoned one.
4. Have you implemented punchout? If your customers include procurement departments, cXML/OCI is not optional, and few agencies have done it twice.
5. Which B2B platform would you put us on, and what would make you change that answer? Single-platform shops fail this question by construction.
6. Who staffs the account after launch, and what is the SLA? B2B stores are living systems; the retainer team matters more than the pitch team.
7. How do you test customer-specific catalogs? The right answer involves seeded accounts per price tier, not "we click around."
8. What is your data migration plan for customers, terms, and order history? B2B relationships live in that history; losing it costs real revenue.

How We Scored This List: Methodology

Five checks, applied identically to every agency including IWD:

1. B2B evidence audit. Live client storefronts with verifiable B2B features (login-gated catalogs, quote flows, company account flows), weighted for recency.
2. ERP scoring. Named ERP integrations in public case studies score; generic claims do not.
3. Platform verification. Partner-directory status confirmed on each claimed platform at the last update date.
4. Vertical proof. Named distributor, manufacturer, or wholesale clients weighted above anonymous logos.
5. Engagement bracket estimation. Published pricing where available; otherwise triangulated from client roster scale and stated minimums.

Disclosure: IWD Agency publishes this guide and ranks itself first by self-evaluation against these criteria. Where a competitor fits your situation better, the decision framework says so by name. The methodology is reproducible; challenge any placement and we will re-score with documentation.

Frequently asked questions

How much does a B2B ecommerce agency cost?

B2B builds on Shopify Plus or BigCommerce B2B Edition run 50K to 180K from US agencies. Adobe Commerce B2B builds run 125K to 400K. ERP integration adds 15K to 60K with a productized connector or 40K to 150K for custom bidirectional sync. Ongoing retainers run 8K to 25K per month at mid-market scale.

What should a B2B ecommerce site actually do?

The floor: company accounts with buyer roles, customer-specific catalogs and contract pricing, quote requests that become orders, net terms, and reorder workflows. The differentiators: live ERP-driven pricing and inventory, punchout for procurement customers, and approval chains for multi-buyer accounts. If an agency's B2B pitch is "password-protected wholesale page," keep looking.

Which platform is best for B2B ecommerce?

It depends on catalog complexity and your ERP. Adobe Commerce leads for complex catalogs, deep customization, and heavy ERP integration. Shopify Plus B2B fits brands under roughly 25M GMV with moderate B2B needs and wins on operating cost. BigCommerce B2B Edition sits between them with strong native B2B features at SaaS economics. An agency certified on only one of these will recommend that one every time.

How long does a B2B ecommerce build take?

Shopify Plus or BigCommerce B2B builds take 12 to 22 weeks. Adobe Commerce B2B builds take 22 to 36 weeks. ERP integration runs partly in parallel: 4 to 10 weeks with a productized connector, 8 to 20 weeks for custom bidirectional sync. Punchout adds 6 to 12 weeks where procurement customers require it.

Do I need ERP integration from day one?

If your ERP owns pricing, inventory, or customer terms, yes: without integration your team re-keys data daily and the storefront drifts out of sync with the business. If your operation is small enough that a spreadsheet is the ERP, launch without it, but pick an agency and platform with a proven connector path so the integration is an upgrade rather than a rebuild.

What is punchout and do I need it?

Punchout (cXML or OCI) lets buyers inside procurement systems like SAP Ariba or Coupa shop your catalog from within their own purchasing software. You need it when your customers include enterprises whose purchasing departments mandate it, common in industrial, MRO, medical, and government-adjacent supply. Few agencies have implemented it more than once; ask directly.

Can a DTC agency handle a B2B project?

Usually not well. B2B breaks DTC assumptions everywhere: pricing is per-customer instead of public, checkout involves POs and terms instead of credit cards, and the ERP is the system of record instead of the storefront. Agencies learn these patterns on someone's budget; the question is whether it will be yours.

How do I verify an agency's B2B claims?

Ask for three live B2B client URLs and check them: real B2B stores show login-gated pricing, quote flows, or dealer portals. Ask for named ERPs with named projects. Check partner directories for their claimed platform certifications. Anonymous case studies plus generic integration claims equal a DTC shop wearing a B2B costume.

Related reading

IWD B2B ecommerce agency · B2B ecommerce development · Magento B2B solutions · Adobe Commerce B2B · Shopify Plus B2B services · Best Magento Development Agencies · Best NetSuite Integration Partners

If you are scoping a B2B build, replatform, or ERP integration, book a 15-minute assessment. We will tell you honestly whether IWD is the right fit, and if another shop on this list matches your situation better, we will say which one.

Work with IWD

IWD has built ERP-integrated B2B commerce since 2008. Explore our B2B ecommerce agency, B2B ecommerce development, Magento B2B solutions, Adobe Commerce B2B, and Shopify Plus B2B services.