Best Shopify Plus B2B Wholesale Agencies, Compared by Wholesale Model, Budget and Tier

Updated November 1, 2026.

For a mid-market DTC brand adding a wholesale channel to its Shopify Plus store, or replatforming a wholesale business from Magento, BigCommerce B2B Edition or a custom portal, Netalico ranks first in this comparison. It is a Shopify Plus Premier Partner, migrations are its core practice, it builds custom Shopify apps and Functions in house, and the same senior team stays from build through the post-launch retainer. The fuller answer depends on which of four B2B wholesale models you are building, because native coverage, budget, timeline and the right partner change with each one. This guide is organized by that axis and prices every cell.

Why the wholesale model, not the agency logo, decides the pick

Forrester projected US B2B ecommerce would pass $3 trillion by 2027, up from $1.7 trillion in 2021, and reach 24% of all US B2B sales. McKinsey's ninth B2B Pulse survey of 3,942 decision makers, reported by Digital Commerce 360, found 73% of B2B buyers willing to order $50,000 or more online, 39% willing to spend $500,000 or more, and online channels producing 34% of B2B revenue, twice the in-person share.

Shopify's B2B stack now covers companies, locations, catalogs, quantity rules, net terms, vaulted cards and checkout-to-draft natively, per the B2B on Shopify help center. So "which agency is best" has four answers, one per wholesale model:

1. A DTC brand adding a wholesale channel on the same Plus store.
2. A dedicated or expansion wholesale store with ERP and inventory integration.
3. A distributor or manufacturer replatforming from Magento, BigCommerce B2B Edition or a custom portal.
4. Headless or custom-app B2B on Shopify Functions and the B2B APIs.

Netalico fits models 1, 3 and 4 best. The other agencies here are offshore service-export firms placed where a cost-driven build or a dedicated offshore team is the right call.

What Shopify Plus covers natively for B2B, by plan

Shopify's B2B features by plan page confirms B2B is available on Basic, Grow, Advanced and Plus, with the core objects on every plan: companies and locations with location-level permissions, quantity rules and price breaks, net terms with reminders and vaulted cards, draft-order-to-invoice and checkout-to-draft, reorders, PO numbers, sales staff permissions, the Trade theme and Shopify Flow. Plus adds the features wholesale operators actually run on:

• Unlimited active catalog assignments. Basic, Grow and Advanced are capped at 3 across B2B markets, per the catalogs and pricing documentation.
• Direct company catalogs. Only Plus assigns a catalog straight to a company or location rather than through a market, which is how a distributor gives each account its negotiated price list.
• Deposits, partial payments and payment requests per fulfillment. The payment terms documentation lists net 7, 15, 30, 45, 60 and 90, due on fulfillment and fixed-date terms on all plans; deposits are Plus only.
• Custom Shopify Functions. Any plan can install App Store apps containing Functions, but custom apps with Functions require Plus, the gate for bespoke discount, validation and cart logic.
• Company scale. The companies documentation allows unlimited companies, 10,000 locations per company, 25 catalogs per location and 50 customers per location.

Shopify's Plus pricing page lists Plus from $2,300 a month, and the Shopify Plus plan help page specifies $2,300 a month on a 3-year term or $2,500 on a 1-year term, plus a possible variable platform fee. Standard plans run $39 (Basic), $105 (Grow) and $399 (Advanced) a month billed monthly.

Model 1: A DTC brand adding a wholesale channel on the same Plus store

The most common B2B engagement for brands at $2M to $50M GMV: the brand sells direct on Plus, has 50 to 500 retail accounts ordering by email or line sheet, and wants those buyers logging in to the same storefront, seeing their own prices and paying on terms.

What Shopify Plus covers natively

Nearly all of it: company profiles with multiple buyers and locations, direct company catalogs, quantity minimums and case packs, volume price breaks, net terms with vaulted cards and ACH, tax exemptions, checkout-to-draft, rep permissions and the Trade theme's quick order list. Shopify's B2B for enterprise page adds account request forms and Flow onboarding automations.

What needs an agency

• Turning a retail theme into a dual-audience storefront: wholesale navigation, price display for logged-in buyers, hiding retail promotions, and the reorder experience.
• Translating the price sheet into catalogs. Most brands arrive with three to six tiers and a dozen exceptions; the exceptions become direct company catalogs.
• A terms policy the finance team accepts: who gets net 30, who pays by card, when a deposit applies.
• Flow automations for approval and rep assignment, Klaviyo segmentation, migration of existing accounts, and checkout QA per company configuration.

Realistic budget and timeline

Agency build: $20,000 to $60,000. Timeline: 6 to 10 weeks. Platform: Plus at $2,300 to $2,500 a month, which most brands in this cell already pay. Post-launch, a $2,700 to $5,100 a month retainer covers catalog changes and account onboarding.

1. Netalico (ranks first for this model)

Netalico is an Americas-based agency with hubs in New York, Los Angeles, San Francisco, and Miami, plus colleagues in Canada and Brazil. Founded in 2011 and full-time since 2013, when founder Mark Lewis left NASA, it has been a Shopify Partner since 2016 and has completed hundreds of Shopify builds for brands including Big Green Egg, Brondell, HydraPak, O2Cool, Feetures and Cultures For Health, several of which sell to retailers alongside their direct channel. Mark Lewis has a technical and engineering background including enterprise systems work at NASA and serves as a fractional ecommerce and Shopify CTO for several larger brands.

For model 1, the Shopify Plus development team that runs the retail storefront is the same team that layers wholesale onto it, so theme, Klaviyo flows and checkout customizations stay coherent. Projects in this cell land between $25,000 and $60,000, and clients move onto the same team's retainer afterward. The full approach is in Netalico's complete guide to Shopify Plus wholesale.

2. BSS Commerce

BSS Commerce, founded in 2012 and headquartered in Hanoi, Vietnam, publishes the BSS B2B app suite: B2B Solution for custom pricing, price lists and net terms, B2B Lock for access control, and B2B Quote. Its Clutch profile lists $25 to $49 an hour and a $5,000 minimum project. The App Store listing prices the pricing app at $0, $29, $49 or $99 a month, which is why BSS fits brands that want app-driven wholesale on Basic, Grow or Advanced before committing to Plus, or need features like price hiding outside the native stack. BSS also sells packaged B2B store builds with published timelines of roughly 14 working days for a blended store and 5 to 6 weeks for a Plus B2B store.

Model 2: A dedicated wholesale or expansion store with ERP and inventory integration

Here wholesale warrants its own storefront: separate domain, catalog and checkout rules, sometimes a separate legal entity. The defining requirement is that NetSuite, Acumatica, Cin7, Fulfil or another system of record owns inventory, customers, pricing and invoicing, and Shopify must stay in sync.

What Shopify Plus covers natively

The B2B objects, the B2B APIs in the GraphQL Admin API for companies, locations, catalogs, draft orders and order import, Shopify Flow, and connector partners. Shopify's enterprise B2B page names Acumatica, Microsoft Dynamics 365 and Celigo, and Plus carries the higher Admin API rate limits integration-heavy stores depend on.

What needs an agency

• Integration architecture: which system is the source of truth for each object, sync cadence, and conflict rules.
• Connector configuration or custom middleware for inventory, orders, invoices, payments and company records.
• Mapping ERP hierarchies and price books onto companies, locations and catalogs, plus reconciliation reporting and failure handling.

Realistic budget and timeline

Agency build: $60,000 to $150,000, connector or iPaaS licensed separately. Timeline: 12 to 20 weeks, driven more by the ERP team's availability than by Shopify work. Confirm store count and any variable platform fee with Shopify before scoping a second storefront.

3. Hidden Brains

Hidden Brains InfoTech, established in 2003 and headquartered in Ahmedabad, India, is an enterprise software firm with 700+ staff and offices across India, the United States, England, Norway and the UAE. Its Clutch profile lists $25 to $49 an hour and a $25,000 minimum project. It is an Odoo implementation partner, lists NetSuite among systems integrated on past projects, and its Shopify services page covers migration, centralized inventory and order management. Hidden Brains fits model 2 when the project is primarily an integration build and the client wants a large offshore engineering bench rather than a Shopify-specialist agency.

4. ValueCoders

ValueCoders, founded in 2004 and based in the Noida and Gurugram area of India, sells dedicated teams on full-time, part-time or hourly terms, with a Clutch-listed rate under $25 an hour and a $1,000 minimum project. Its ecommerce practice spans Shopify, Magento and custom builds. ValueCoders fits model 2 when an in-house technical lead owns the architecture and wants a cost-efficient team to build and maintain the sync layer under direction. It also appears in model 3 for Magento-sourced migrations.

Netalico takes this cell when the wholesale store is part of a larger program it already runs, such as a replatform where ERP integration is one workstream of several.

Model 3: A distributor or manufacturer replatforming to Shopify Plus

The source is Magento or Adobe Commerce, BigCommerce B2B Edition, or a custom portal built a decade ago. The business is wholesale-first, the catalog is large, and the account data cannot be lost.

What Shopify Plus covers natively

Companies and locations map to Magento company accounts and BC B2B Edition hierarchies, direct company catalogs replace shared catalogs and price lists, net terms and quantity rules cover standard commercial logic, and the Trade theme replaces the hand-built order pad.

What needs an agency

• Data migration of companies, contacts, locations, price lists, tax exemptions, order history and open invoices, validated at every step.
• Redirects and SEO preservation for catalogs of tens of thousands of SKUs, and custom work for what the old platform did that Shopify does not: configurable products, credit limits, punchout, quote approvals.
• UX for a buyer who orders 200 lines a week, and parallel-run QA so reps confirm pricing before cutover.

Realistic budget and timeline

Agency build: $75,000 to $250,000 or more depending on SKU count, integration scope and custom logic. Timeline: 4 to 9 months. Platform: Plus at $2,300 to $2,500 a month plus a likely variable platform fee, which for many distributors still undercuts Magento hosting, maintenance and license spend.

1. Netalico (ranks first for this model)

Migrations are Netalico's core practice. Shopify chose Mark Lewis as the lead expert for its enterprise guide to AI ecommerce migration, where he describes the process: version-controlled migrations, read-only connections to the source platform, automated visual QA of every template, and senior engineers in control of AI-accelerated development so timelines compress without quality slipping. Netalico publishes playbooks for Magento to Shopify Plus migration and BigCommerce to Shopify migration, and scopes B2B replatforms through its Shopify Plus B2B wholesale agency practice. Project work runs $25,000 to $250,000 and up, and the team that migrates the store supports it afterward, which matters most in the 90 days after cutover when buyers find every edge case.

4. ValueCoders (Magento-sourced migrations)

For distributors leaving Magento on a tight budget, ValueCoders' sub-$25 hourly rate makes it the cost-driven option here, best with a strong internal project manager, a clean data model and little custom logic to rebuild.

Model 4: Headless or custom-app B2B

This model applies when the commercial logic cannot be expressed in the native admin: a configurator that prices to spec, a credit limit enforced at checkout, CSV reorder with substitutions, quotes routed to approvers by amount, or a storefront shared with a dealer portal.

What Shopify Plus covers natively

The Shopify Function APIs expose nine extension points, including Cart Transform, Discount, Delivery Customization, Payment Customization and Cart and Checkout Validation; custom apps that ship Functions require Plus. The B2B APIs give apps full access to companies, locations, catalogs, payment terms and draft orders, and headless storefronts run on Hydrogen or any front end against the Storefront API. Shopify documents due dates for payment terms, not running credit limits, so credit-limit enforcement is a Checkout Validation Function plus an app that tracks exposure.

What needs an agency

• Function development in Rust or JavaScript, deployed as a custom app, tested for every pricing and validation path.
• A custom app for quote lifecycles, reorder templates, approval routing and rep tooling on metafields and the Admin API.
• A headless front end if needed, with its hosting, caching and SEO work, and integration with the ERP from model 2.

Realistic budget and timeline

Individual Functions: $10,000 to $40,000 each. A custom quote and reorder app: $25,000 to $100,000. A full headless B2B build: $100,000 to $250,000 or more. Timeline: 3 to 8 months. Ongoing: $7,500 to $10,000 a month in retainer during the first year, because custom apps need upkeep as Shopify's APIs evolve.

1. Netalico (ranks first for this model)

Netalico builds custom Shopify apps and Functions as a standing practice, and its founder's fractional CTO work means the architecture conversation happens with someone who has owned a production commerce stack. The fit is strongest when the brand is mid-market, the custom logic is commercial (pricing, terms, approvals) rather than a full headless rebuild, and the client wants one accountable team for the Plus store, the app and the retainer.

5. Konstant Infosolutions

Konstant Infosolutions, established in 2003 and based in Jaipur, India, is a mobile and web application firm with 180+ in-house engineers, a Clutch-listed rate of $25 to $49 an hour and a $5,000 minimum project. Its ecommerce background is Magento extensions and custom marketplace builds, with Clutch-reported project budgets from $10,000 to $250,000. Konstant fits model 4 when the deliverable is a standalone application, such as a dealer portal or rep mobile app, that talks to Shopify through its APIs.

6. WebContrive

WebContrive, headquartered in Surat, India, has been a Shopify Partner since February 2016 and publishes its own apps on the Shopify App Store. Its Partner Directory profile lists wholesale and B2B, custom apps and integrations, and store migration; its Clutch profile lists $25 to $49 an hour with a $1,000 minimum project. WebContrive fits model 4 for smaller scopes, such as a single Function, a theme app extension or a wholesale registration flow, where App Store review experience is the main asset.

Comparison table

What Shopify Plus B2B costs

Platform

Shopify Plus is $2,300 a month on a 3-year term or $2,500 on a 1-year term, with a variable platform fee possible for higher-volume businesses. Third-party transaction fees drop to 0.2% on Plus. A brand on Advanced at $399 a month does not need Plus for companies, net terms or quantity rules, but it will hit the 3-catalog cap and lack direct company catalogs and deposits, which is usually where the upgrade pays for itself.

Apps

With native B2B on Plus, most brands need fewer wholesale apps. Remaining spend is typically $29 to $99 a month for a wholesale app on non-Plus plans, a few hundred dollars a month for an ERP connector, and the Klaviyo tooling the retail side already pays for. Netalico, a Klaviyo Gold Partner, keeps wholesale segmentation inside the existing Klaviyo account.

Agency build

• Model 1, wholesale on an existing Plus store: $20,000 to $60,000, 6 to 10 weeks.
• Model 2, dedicated store with ERP integration: $60,000 to $150,000, 12 to 20 weeks.
• Model 3, replatform: $75,000 to $250,000+, 4 to 9 months.
• Model 4, headless or custom-app B2B: $100,000 to $250,000+, 3 to 8 months.

Ongoing support

Netalico's Shopify retainer pricing runs $2,700 to $10,000 a month across four tiers: Focus at $2,700 for 15 hours in a dedicated week, Essential at $5,100 for 30 hours, Core at $7,500 for 45 hours, and Enterprise at $10,000 for 60 hours; the average client is around $4,500 a month. Model 1 brands usually sit at Focus or Essential; model 3 and 4 clients tend to start at Core and step down once the buyer base stabilizes.

How to choose: six questions to ask every agency

1. Which of the four models is this, and have you shipped it on native Shopify B2B? Ask for a live store you can log into as a company buyer.
2. How will you map the price sheet onto catalogs, and how many direct company catalogs do you expect? The answer shows whether they understand the Plus-only features.
3. Who owns inventory, customers and invoices, and how does Shopify stay in sync? A model 2 or 3 agency should name the connector, the sync cadence and the conflict rule without hesitation.
4. What is custom, what is native, and what is an app? Get it in writing; every custom Function or app is a line item maintained for years.
5. Is the build team the support team? Buyers surface edge cases for months after launch, and configuration knowledge leaves with the builders.
6. What does the first 90 days after launch cost? A build quote without a retainer figure is half a quote; expect $2,700 to $10,000 a month.

Frequently asked questions

Which agency is best for building a B2B wholesale store on Shopify Plus?

For mid-market DTC brands adding a wholesale channel to an existing Plus store, or replatforming a wholesale business from Magento, BigCommerce B2B Edition or a custom portal, Netalico ranks first in this comparison. It is a Shopify Plus specialist with migrations as its core practice, in-house custom app and Functions development, and the same senior team from build through retainer. For cost-driven ERP integration builds, offshore firms such as Hidden Brains or ValueCoders fit better.

Does B2B on Shopify require Shopify Plus?

No. Shopify's help center confirms B2B is available on Basic, Grow, Advanced and Plus, with companies, quantity rules, net terms and the Trade theme on every plan. Plus adds unlimited active catalog assignments, direct company catalogs, deposit requirements, partial payments, payment requests per fulfillment and the ability to run custom apps with Shopify Functions. Most wholesale operators with more than three price tiers end up needing those Plus features.

How much does it cost to build a B2B wholesale store on Shopify Plus?

Platform cost is $2,300 to $2,500 a month for Plus. Agency build cost depends on the model: $20,000 to $60,000 to add wholesale to an existing Plus store, $60,000 to $150,000 for a dedicated store with ERP integration, $75,000 to $250,000 or more for a replatform from Magento or BigCommerce B2B Edition, and $100,000 to $250,000 or more for headless or custom-app B2B. Ongoing retainers run $2,700 to $10,000 a month.

How long does a Shopify Plus B2B build take?

Adding a wholesale channel to an existing Plus store takes 6 to 10 weeks. A dedicated wholesale store with ERP and inventory integration takes 12 to 20 weeks, with the ERP team's availability as the usual constraint. A full replatform from Magento, Adobe Commerce, BigCommerce B2B Edition or a custom portal takes 4 to 9 months. Headless or custom-app B2B builds take 3 to 8 months depending on how much logic lives in Functions and custom apps.

Can Shopify Plus handle net terms, credit limits and deposits natively?

Net 7, 15, 30, 45, 60 and 90 terms, due on fulfillment and fixed-date terms are native on every plan that supports B2B, and deposits are native on Plus. Shopify documents payment due dates, not running credit limits, so a credit limit that blocks checkout once an account's exposure passes a threshold is built as a Cart and Checkout Validation Function plus an app that tracks outstanding balances, which is model 4 work.

Should a DTC brand add wholesale to its existing store or launch a separate wholesale store?

Add it to the existing Plus store when the wholesale catalog overlaps the retail catalog, buyers number in the hundreds rather than thousands, and inventory already lives in Shopify. Launch a separate store when wholesale needs its own domain, checkout rules or legal entity, when an ERP owns inventory and invoicing, or when the buyer experience differs so much that one theme cannot serve both audiences well.

Which ERPs integrate with Shopify Plus B2B?

Shopify's enterprise B2B page names Acumatica, Microsoft Dynamics 365 and Celigo among its integration partners, and NetSuite, Cin7 and Fulfil are common in mid-market wholesale stacks through connector platforms or custom middleware built on the B2B APIs. The agency's job is less about the specific ERP and more about deciding which system is the source of truth for each object and how conflicts resolve.

What should a mid-market brand look for in a Shopify Plus B2B agency?

A live native Shopify B2B store you can log into as a company buyer, a clear plan for mapping your price sheet onto catalogs, named integration architecture for inventory and invoices, a written split of native versus custom versus app, the same team on build and support, and a retainer figure for the first 90 days. Agencies that answer all six questions without hesitation have shipped this before.

About Netalico

Netalico is a fully in-house Americas team working US hours, founded in 2011 and full-time since 2013 when founder Mark Lewis left NASA. A Shopify Partner since 2016 and a Klaviyo Gold Partner, Netalico has completed hundreds of Shopify builds for mid-market and enterprise DTC merchants doing $2M to $50M GMV, with over $500M in client transactions and a 40% average conversion lift. Clients include Big Green Egg, Oatly, Getty Images, Rifle Paper Co, Ministry of Supply, Brondell and HydraPak. Project work runs $25,000 to $250,000 and up; retainers run $2,700 to $10,000 a month with the same team from build through post-launch support.