Best Shopify Plus Agencies for US Brands (2026): 14 Compared by Buyer Type, Including Us

On 9 October 2026 we put three buyer questions to ChatGPT, Claude, Gemini, Perplexity and Google’s AI answers: the best Shopify Plus agencies in the US, who can build a B2B wholesale portal on Shopify Plus, and the best ecommerce development company for mid-market brands. We collected 42 answers. Those answers linked to 119 different pages. Of the 221 links, 128 went to list pages.

On 11 October we read ten of the most cited lists. Six are published by agencies, and all six name themselves: five at number one and one at number two. The other four come from software companies and a blog. Six of the ten link to Shopify’s partner directory, where a reader can check an agency’s tier. One describes Shopify’s tiering guide, which sets out what a tier measures. None links to it.

So we did the slow part. We picked US agencies that build on Shopify Plus, opened each firm’s own website and its Shopify directory profile, and wrote down only what we could read there. Every profile links to its sources.

Who wrote this. FactoryJet designs, builds and supports Shopify Plus stores, so we are on this list. Nobody paid to be included, the order is not a ranking, and our entry uses the same format as every other firm. Read every agency list with its author in mind, including this one.

A few terms first, in plain English. Shopify Plus is Shopify’s plan for high-volume businesses. A Shopify Plus agency is a firm that designs and builds stores on that plan. DTC (direct-to-consumer) means a brand sells straight to shoppers. B2B or wholesale means selling to other businesses, usually with price lists and payment terms. Replatforming means moving a store from one system, such as Magento or BigCommerce, to another. An ERP is the system that holds orders, stock and accounts. Headless means the storefront is custom code that talks to Shopify behind the scenes.

The shortlist at a glance

Scan this first. Find the rows that match what you sell and the systems you run, then read those profiles in full.

How we built this list

1. Start with what buyers ask. The three questions are in buyers’ own words. “Shopify Plus agencies” alone gets 590 US Google searches a month (DataForSEO, October 2026). Google showed an AI answer for it and for six related searches when we checked on 11 October.
2. Read the lists assistants cite. We read ten of the most cited lists to see who gets named and what is missing. We did not copy them.
3. Keep only US agencies. Every other firm shows a US base on its own site or in its Shopify directory profile.
4. Read two sources for each firm. The firm’s own pages say what it builds and who it suits. Shopify’s partner directory gives its tier, primary location and review count. We opened both on 11 October 2026.
5. Report claims as claims. Project counts, client names and revenue figures are each firm’s own, and we say so.
6. No scores we cannot prove. We have not hired these firms, so there are no star ratings of our own. We tell you who each one suits and one question worth asking it.
7. Prices only from the firm. Where a firm publishes a project price on its own site, we quote it and link the page. We never guess another company’s price.

What a Shopify partner tier tells you

Many agency sites still say “Shopify Plus Partner”. Shopify’s help page says the Plus Partner program ended in December 2024 and the Shopify Experts name in December 2023. Today there is one Shopify Partner Program with five tiers: Registered, Select, Plus, Premier and Platinum. Plus is the third of the five.

Shopify’s Q4 2026 tiering guide sets out how a partner moves up. Registered is the starting point. Every other tier is earned through commercial impact, which Shopify measures in three ways.

Shopify uses the stronger of the two revenue figures, and a partner must also meet the merchant count. Tiers update on the first day of January, April, July and October. The guide also says credentials are waived for 2026 and only commercial activity is evaluated.

In plain words, a tier shows how much Shopify business a partner brings in and keeps. That is a fair sign of scale. It does not show whether a firm has built a store like yours or connected the systems you run, so check the tier first and the work second.

On 11 October 2026 we counted the firms at each tier in Shopify’s partner directory, with the location filter set to the United States.

Worldwide, the directory showed 141 Platinum partners on the same day. Of the 13 other firms on this page, it listed 9 as Platinum, 2 as Premier, 1 as Plus and 1 as Select. FactoryJet is a registered Shopify Partner. Each profile below gives the tier and links to the listing we read.

The best Shopify Plus agencies for US brands, profiled

The order is not a ranking. Firms are grouped by the buyer they suit, in the words buyers used: consumer brands, mid-market brands moving platform, B2B wholesale, then us.

Shopify Plus agencies for consumer and direct-to-consumer brands

Firms whose own sites name consumer brands as their clients and lead with design. All four give New York as a base on their site or Shopify profile. Each names a different kind of brand: packaged goods, fashion and lifestyle, founder-led DTC, and brands with shops as well as a site.

1. Barrel

Based: New York, per its Shopify directory profile. Its site says the team is globally distributed. Type: Shopify builds, migrations and retention marketing for packaged goods brands. Shopify partner tier: Platinum.

Barrel says it focuses exclusively on CPG, short for consumer packaged goods: products such as food, drink and personal care that sell in shops, on Amazon and direct at the same time. It has built on Shopify since 2009 and says it became a Shopify Plus partner in 2017. Its work covers site strategy, design and development, Amazon storefronts, email and text message programs, subscriptions and conversion testing. It says its McCormick build runs 14 brands under one Shopify backend with a shared cart.

• Best for: Food, drink and personal care brands that sell through retail and Amazon as well as their own store.
• Typical client: CPG brands from founder-led startups to multi-brand portfolios; it names McCormick, Cabot Creamery and Once Upon a Farm.
• Systems it names: Shopify, Klaviyo, Recharge, Rebuy, Okendo, Gorgias.
• Worth asking them: How your Shopify store would work alongside your retail and Amazon channels, and who runs email after launch.

Source: www.barrelny.com/about | Shopify directory: shopify.com/partners/directory

2. Avex

Based: New York City (368 9th Ave). Type: Design, replatforming and retention for consumer brands. Shopify partner tier: Platinum.

Avex calls itself a Platinum Shopify Plus agency and says it works with mid-market and enterprise brands on strategy, design, engineering and retention. Its services include Shopify Plus design and build, replatforming, B2B commerce and international expansion. Its Shopify directory profile names platform migrations, internationalization and UX design as core specializations. Its about page describes a New York agency with remote talent worldwide.

• Best for: Fashion, beauty and lifestyle brands that want a design-led store from a New York agency.
• Typical client: Mid-market and enterprise brands; its homepage shows AriZona Beverages, KHAITE, quip, Equinox, FILA and TYR.
• Systems it names: Shopify and Shopify Plus; Recharge is named in a client quote.
• Worth asking them: Which of the brands on its homepage had a project like yours, and what the work covered.

Source: www.avexdesigns.com/about/ | Location: www.avexdesigns.com | Shopify directory: shopify.com/partners/directory

3. Blackbelt Commerce

Based: New York City. Type: Store builds, migrations and conversion work for growing DTC brands. Shopify partner tier: Plus.

Blackbelt Commerce describes itself as a family-run New York agency and says clients get direct access to its co-founders, Victoria and Cesar, from day one. It builds, migrates and grows Shopify and Shopify Plus stores for DTC brands doing $1M to $5M. It says it ships stores in 4 to 8 weeks and that every migration includes a plan to keep search rankings and one-to-one redirect mapping. It also sells SEO for AI search, paid ads and ongoing support. Its Shopify directory profile shows a 5.0 rating from 178 reviews.

• Best for: Founder-led DTC brands that want to deal directly with the two people who run the agency.
• Typical client: DTC brands doing $1M to $5M; its portfolio names Judith Leiber and Erica Wilson.
• Systems it names: Shopify and Shopify Plus; migrations from Magento, WooCommerce, BigCommerce and Salesforce.
• Worth asking them: What the 4 to 8 week timeline covers, and how it changes if your migration includes subscriptions or years of order history.

Source: www.blackbeltcommerce.com/ | Shopify directory: shopify.com/partners/directory

4. Solo Media Group

Based: New York, with Los Angeles and Miami addresses on its site. Type: Design-led Shopify builds, migrations, wholesale and point of sale. Shopify partner tier: Platinum.

Solo Media Group calls itself a senior design and development studio for commerce brands. It says it has worked with 500+ Shopify merchants and is strongest with brands that sell across direct-to-consumer, retail, wholesale and point of sale. One team handles strategy, design, engineering and testing, and its site says you work with the same team throughout. Its Shopify directory profile shows a 5.0 rating from 38 reviews.

• Best for: Brands that sell online, in shops and wholesale and want one studio for design and build.
• Typical client: DTC and retail-first brands in beauty, wellness, food and beverage, packaged goods and specialty retail.
• Systems it names: Shopify and Shopify Plus, point of sale, Klaviyo.
• Worth asking them: Which named people would be on your project, and for a client whose online store, shops and wholesale all run on Shopify.

Source: solomediagroup.com/ | Location: solomediagroup.com | Shopify directory: shopify.com/partners/directory

Ecommerce development companies for mid-market brands moving to Shopify Plus

Firms that lead with moving a store to Shopify Plus from another platform. They differ most in the size of brand they name, from eight-figure DTC brands at Command C to $50M to $2B at Anatta.

5. Domaine

Based: New York City, per its Shopify directory profile. Its site also lists Charleston, London, Toronto, Amsterdam and Delft and says the team is remote-first. Type: Large-scale migrations to Shopify and design-led builds. Shopify partner tier: Platinum.

Domaine says it works only on Shopify and specializes in large-scale migrations and unified commerce, meaning one system for online, retail and wholesale, with design at the center. Its site counts 750+ Shopify sites launched, 150+ migrations to Shopify and 300+ full-time team members worldwide, and lists B2B, point of sale and international selling among its services. Shopify also lists Domaine Studio, a separate Platinum profile for emerging to mid-market brands.

• Best for: Large consumer brands planning a multi-market move to Shopify that need a big team.
• Typical client: Mid-market to complex enterprise brands.
• Systems it names: Shopify only; migrations from Salesforce Commerce Cloud, Adobe Commerce, BigCommerce and commercetools; ERP, order management and product data integrations.
• Worth asking them: Whether your project would sit with the main agency or with Domaine Studio, and who leads it day to day.

Source: domaineworldwide.com/ | Shopify directory: shopify.com/partners/directory

6. Netalico Commerce

Based: Miami, per its Shopify directory profile. Its site lists team locations including New York City, Chicago, San Francisco, Los Angeles and Toronto. Type: Replatforming to Shopify Plus, design and custom development. Shopify partner tier: Premier.

Netalico was started in 2011 by Mark Lewis while he was an engineer at NASA, and he has run it full-time since 2013. It moves brands from BigCommerce and Magento to Shopify Plus with full URL mapping, SEO audits before and after the move and launch-day monitoring. It says its senior team is fully in-house with nothing subcontracted, and that about 85% of its clients work with it on a monthly retainer.

• Best for: DTC brands leaving BigCommerce or Magento that want the same senior team to stay on after launch.
• Typical client: Mid-market and enterprise DTC brands; it names Oatly and Big Green Egg.
• Systems it names: Shopify Plus; migrations from BigCommerce, Magento and WooCommerce; ERP and order management integrations.
• Worth asking them: How it maps and tests redirects before launch, and who your named lead engineer would be.

Source: netalico.com/ | Shopify directory: shopify.com/partners/directory

7. Command C

Based: New York and North Carolina, per its site. Its Shopify directory profile gives Carrboro, North Carolina. Women-owned, since 2004. Type: Enterprise migrations and long-term development partnerships. Shopify partner tier: Premier.

Command C says it was one of the first 12 Shopify Plus partners when the plan launched in 2014. It does not start building until it has written a Strategic Technical Roadmap, a diagnosis of your current setup. It offers two migration paths, a tailored pre-built theme or a custom design and theme, and connects Shopify Plus to ERP, third-party warehouse and fulfillment systems. Its enquiry form asks for a budget band (see the price section below).

• Best for: Established DTC brands whose current store is fragile and who want a diagnosis before a rebuild.
• Typical client: Eight-figure DTC brands; its site describes brands doing $10M to $75M in revenue.
• Systems it names: Shopify Plus, BigCommerce and Magento; ERP, third-party warehouse and fulfillment integrations.
• Worth asking them: What the Strategic Technical Roadmap contains, and whether you can take it to another builder.

Source: commandc.com/ecommerce-development-shopify-plus/ | Location: commandc.com | Shopify directory: shopify.com/partners/directory

8. Anatta

Based: Austin, Texas, where its Shopify directory profile says it was founded in 2008. Type: Enterprise replatforms, systems integration and headless builds. Shopify partner tier: Platinum.

Anatta says it works with omnichannel brands doing $50M to $2B in revenue. It specializes in complex replatforms, systems integration and retention engineering, and says storefront theming is outside its focus. It says it has moved $3.14B+ in GMV, meaning total sales value, to Shopify since 2008. Its delivery runs on what it calls agentic delivery: AI agents plan, build and test, and its architects approve every step that has a business consequence. It publishes prices for two short diagnostics (see the price section below).

• Best for: Large omnichannel brands that want a written answer on whether to migrate before they commit.
• Typical client: Omnichannel brands doing $50M to $2B in revenue.
• Systems it names: Shopify Plus; ERP, order management and CRM integrations; composable, headless architecture.
• Worth asking them: Which parts of your build its AI agents would carry out, and which named architect approves each step.

Source: anatta.io/shopify-plus-agency/ | Shopify directory: shopify.com/partners/directory

Agencies that build B2B wholesale portals on Shopify Plus

Firms that name B2B or wholesale as a core practice. Uncap puts B2B at the center of everything it sells. The other four build wholesale alongside retail. Four of the five name at least one ERP system they have connected.

9. Uncap

Based: Chicago, Illinois (8770 West Bryn Mawr Ave). Type: B2B-focused Shopify builds for manufacturers, distributors and wholesalers. Shopify partner tier: Platinum.

Uncap says it plans, builds and runs B2B commerce for manufacturers, distributors and wholesalers: company pricing, net terms, quoting, quick reordering and the ERP connection. Denis Dyli founded it in 2013 and still leads solutions work. It reports 380+ storefronts launched and a team of 22, and it has its own apps for quotes, parts diagrams and vehicle fitment. Most projects start with a fixed-price plan called Uncap Blueprint (see the price section below). It says a full B2B replatform with ERP integration typically runs 14 to 18 weeks.

• Best for: Manufacturers and distributors whose main online problem is B2B ordering tied to an ERP.
• Typical client: Manufacturers, distributors and wholesalers; it names Kooks Headers, ULE Group and Canon Medical Systems.
• Systems it names: Shopify B2B and Shopify Plus; its directory profile names NetSuite, Dynamics, Acumatica, Epicor, Infor and Sage.
• Worth asking them: Whether you need Shopify Plus at all. Its own page says Plus is not always the answer for B2B.

Source: www.uncap.com/shopify-agency | Shopify directory: shopify.com/partners/directory

10. Shero Commerce

Based: Red Hook, New York (headquarters), with offices in the UK, Helsinki and Tirana. Type: B2B and DTC in one Shopify store, migrations and ERP integration. Shopify partner tier: Platinum.

Shero Commerce was founded in 2010 by Beth and Gentian Shero. It says it helps mid-market and enterprise brands migrate to, optimize and scale on Shopify, and its site is organized around hard cases: B2B and DTC in one store, ERP, order and warehouse system integrations, and multi-brand or international operations. It reports 65+ team members, 500+ projects delivered and 98% client retention, and offers a B2B readiness audit.

• Best for: Brands that sell wholesale and retail from one store and have an ERP that must stay in sync.
• Typical client: Mid-market and enterprise brands; its client stories include Regal Cinemas and Sarris Candies.
• Systems it names: Shopify Plus, Hydrogen, NetSuite; its site lists 170+ integrations and 44 platforms it migrates from.
• Worth asking them: How it would model your price lists and customer accounts in Shopify before any build starts.

Source: sherocommerce.com/pages/about-us | Location: sherocommerce.com | Shopify directory: shopify.com/partners/directory

11. SDG (Spiegel Design Group)

Based: Los Angeles, per its Shopify directory profile. Type: Enterprise B2B and wholesale builds tied to the ERP. Shopify partner tier: Platinum.

SDG says it has been a Shopify partner since 2006. Its B2B practice builds company accounts with several buyers and locations, customer-specific catalogs, price tiers, volume price breaks and payment terms, with wholesale and retail run from one Shopify admin. It connects B2B to NetSuite, Acumatica and Microsoft Dynamics 365, and says the senior team that designs the retail store also builds the wholesale side.

• Best for: Enterprise brands that want wholesale and retail on one Shopify store, connected to a large ERP.
• Typical client: Enterprise brands; for wholesale work it names Mattel, Revlon, Columbia and prAna.
• Systems it names: Shopify Plus, Shopify Functions, Shopify Markets, NetSuite, Acumatica, Microsoft Dynamics 365.
• Worth asking them: Which senior engineer would design your account and pricing model, and how ERP orders are tested before launch.

Source: www.sdg.la/shopify-b2b/ | Shopify directory: shopify.com/partners/directory

12. BlueSwitch

Based: New York City (29 Broadway). Its site says the team works remotely across North America. Type: Complex Shopify builds and replatforming for B2B and D2C. Shopify partner tier: Platinum.

BlueSwitch says it has more than 25 years in ecommerce and over a decade on Shopify, with a 100% in-house team. It specializes in complex builds and replatforming for B2B and D2C brands. It has built a Unified Commerce Suite, a set of B2B add-ons for checkout, onboarding, ordering and inventory, so a wholesale build does not start from scratch. Its Shopify directory profile shows a 4.9 rating from 54 reviews.

• Best for: B2B brands that want ready-made wholesale modules on top of Shopify.
• Typical client: Enterprise and challenger brands in fashion, technology, health and beauty, industrial and manufacturing.
• Systems it names: Shopify Plus; its own Unified Commerce Suite; Magento to Shopify Plus migrations.
• Worth asking them: Which Unified Commerce Suite modules your build would use, and what happens to them if you change agency.

Source: www.blueswitch.com/about | Location: www.blueswitch.com | Shopify directory: shopify.com/partners/directory

13. ECommerce Partners

Based: Tenafly, New Jersey. Type: Shopify Plus development, B2B portals and replatforming for mid-sized brands. Shopify partner tier: Select.

ECommerce Partners was founded in 1998 in downtown Manhattan and now has its headquarters in Tenafly, New Jersey, with a remote team across the US and Europe. It builds wholesale portals, company accounts, customer-specific pricing and ERP-connected ordering on Shopify Plus, and it also builds on BigCommerce. Its service pages say who it suits: brands doing roughly $3M or more online that sell wholesale alongside retail or need an ERP connected to the store. It publishes typical build costs (see the price section below).

• Best for: Mid-sized wholesalers that are still choosing between Shopify Plus and BigCommerce.
• Typical client: Manufacturers, distributors and brands selling wholesale alongside retail, typically $3M or more a year.
• Systems it names: Shopify Plus and BigCommerce; ERP integrations including AS400; its own B2B app on the Shopify App Store.
• Worth asking them: Why it would put your business on Shopify Plus or on BigCommerce, since it builds on both.

Source: ecommercepartners.com/about-us/ | Shopify directory: shopify.com/partners/directory

What these agencies publish about price

Most firms on this list quote after a call. On the pages we read on 11 October 2026, three of the 13 other firms publish project figures and two more show budget bands on their enquiry forms. We copied them exactly. They are each firm’s own figures. They are not FactoryJet prices or a market survey. Check the source before you rely on them, because firms change prices.

How to read this. Uncap and Anatta price a plan or an audit, and quote the build afterwards. ECommerce Partners gives ranges by complexity. Netalico and Solo Media Group publish rates for ongoing work on their sites; this page compares build projects, so those are left out. The other six firms show no project price on the pages we read.

For a wider view, CartCoders, a Shopify agency, puts a typical Shopify Plus store build at $40,000 to $120,000 or more in its 2026 cost guide, and a full custom store on a standard plan at $8,000 to $35,000. The platform fee is separate. Shopify’s help page lists Plus at $2,300 a month on a three-year term or $2,500 a month on a one-year term for standard setups.

FactoryJet does not publish a rate card. We quote the build and the ongoing support as fixed prices in writing after a short scoping call. For the platform costs line by line, read the true cost of Shopify Plus.

Which Shopify Plus agency fits your brand

Find the line that sounds most like you. It points to a kind of firm first and a name second.

Which agency can build a B2B wholesale portal on Shopify Plus?

That is how one buyer put it. A wholesale portal is a private part of your store where business customers log in, see their own prices, order on payment terms and reorder quickly. Before you pick an agency, check whether you need Plus for it. Shopify’s own pages draw the line like this, as we read them on 11 October 2026:

• On every plan. Shopify’s help page says Shopify B2B is available on all plans. The pricing page shows up to 3 catalogs on the plans below Plus. A catalog is a price list you assign to a group of buyers.
• Added on Plus. Unlimited catalogs, catalogs assigned directly to companies and locations, deposits, partial payments and payment requests per fulfillment.
• Also on Plus. 9 expansion stores, plus checkout customization with separate flows for B2B and consumer buyers in the same store.

A business with a few price lists and standard terms may not need Plus. A business with many customer-specific price lists, deposits on large orders or a separate wholesale storefront usually does. Uncap makes the same point on its own page.

Domaine, Barrel and Avex also list B2B among their services. FactoryJet builds B2B companies, catalogs, payment terms and wholesale ordering on Shopify Plus and connects them to the system that holds your prices and stock. See Shopify Plus B2B development and our wider page on B2B ecommerce.

What Shopify Plus includes, according to Shopify

An agency builds on the plan. It helps to know what the plan itself gives you. These rows come from Shopify’s help page for the Plus plan, read on 11 October 2026. Shopify notes that pricing can change.

Two agencies on this list give a view on when Plus pays. Command C says it is where brands doing $10M to $75M in revenue tend to land when they hit the limits of their current platform. Uncap says Plus is not always the answer for B2B. Write down the Plus-only rows you would use. If the list is short, ask each agency whether a lower plan would do.

How to choose a Shopify Plus agency: 7 steps

Open each step for the detail.

Six questions to ask before you sign

1. Which named systems have you connected Shopify to? Uncap and SDG name theirs on their sites. A firm that cannot name any has probably not done many.
2. How do you map and test redirects? Netalico and Blackbelt Commerce both describe URL or redirect mapping as part of their migrations. Ask to see the mapping sheet from a past project.
3. Who writes the code? Netalico says nothing is subcontracted and BlueSwitch says its team is 100% in-house. Ask every firm the same question.
4. What is your tier in Shopify’s directory today? Then look it up yourself.
5. Can we see something working on our own data before we sign? A demo on your own products and prices tells you more than a slide deck. FactoryJet shows working software on the buyer’s own data before a contract.
6. Who owns the theme code, the custom apps and the accounts at the end? The answer should be you, in writing.

What FactoryJet builds on Shopify Plus

We are FactoryJet. We have served 500+ businesses since 2014, most of that time in commerce: online stores, B2B ordering and the operations behind them. Our founder, Bhavesh Barot, is involved in every project. We are a registered Shopify Partner, and we work remotely with US clients and schedule calls in US business hours.

• Stores. Custom themes, checkout extensions, Shopify Functions and expansion stores. See Shopify Plus development and checkout customization.
• B2B. Companies, catalogs, payment terms and wholesale ordering. See Shopify Plus B2B.
• Migrations. From Adobe Commerce, Salesforce Commerce Cloud, BigCommerce and WooCommerce. See Shopify migration and our Magento to Shopify Plus checklist.
• Integrations. QuickBooks, NetSuite, Odoo, SAP Business One, ERPNext and custom ERPs, plus EDI, punchout catalogs, Xero and HubSpot. See Shopify and QuickBooks integration, ecommerce ERP integration and Shopify EDI integration.
• AI agents. Agents that work on store operations, such as order exceptions, emailed wholesale purchase orders and returns, with approval steps. See Shopify AI agents and ERP AI agents.

A focused Plus build, such as checkout, Functions, B2B or a migration, usually runs 5 to 8 weeks. A full replatform or headless build takes 8 to 14 weeks. We quote the build and the ongoing support as fixed prices in writing after a short scoping call, and we can show working software on your own data before you sign a contract. After launch we keep managing the servers, AI, APIs and maintenance so your team does not have to. You own everything we build.

If you are still working out what you need, these pages explain the options in plain English: ecommerce development agencies in the USA for builds beyond Shopify, the matching list of BigCommerce agencies, how to choose an ecommerce development agency, and B2B ecommerce development agencies for portals.