Best Ecommerce Agencies in Australia (2026): Shopify Plus, B2B and Agentic Commerce

The best ecommerce agency in Australia, for a first Shopify store or a Shopify Plus, B2B or agentic commerce build, is the one that builds GST, Afterpay, Australia Post rates and Australian Consumer Law wording into the first version of your store, shows you live stores in your category, and is still answering your messages six months after launch. Australian price guides put a store build at roughly $5,000 to $25,000 in 2026. Below we compare eight agencies, including FactoryJet, and give you the questions that separate them.

Why Australian Stores Need AI-Native and Agentic Commerce in 2026

More of your customers now start with a question to ChatGPT, Perplexity or Google's AI Overviews rather than a list of blue links. Those tools read product data, not banner images. A store with clean product schema, specs written in plain English, real reviews and fast pages gets named in the answer; a store that hides everything in images and apps does not. That is the practical meaning of AI-native: the store is built so machines can read it, and AI is used where it saves real time, such as drafting product copy from supplier data that a person then edits, or answering common support questions from your own policies. Agentic commerce goes one step further: an AI assistant compares products and, more and more, starts the purchase for the shopper. It can only pick your product if price, stock, shipping times and return terms are readable as data, so those belong in the build from day one. The second shift is trade and retail in one place. Many Australian brands sell to the public and to trade buyers at the same time, and running a separate wholesale portal means two sets of prices, stock and customer records. A single store that shows each trade account its own pricing, turns quotes into orders and keeps retail checkout simple removes that double handling. Belle Maison, a home decor and lighting wholesaler, runs retail shoppers and trade accounts from one storefront we built on Commerceflo, with account-based pricing and quote-to-order workflows. Speed still matters too. Google measures real-user Core Web Vitals, and mobile shoppers leave slow pages. Every app, tracking script and oversized image you add costs speed, so the build should start fast and be kept fast after launch.

What an Ecommerce Build Costs in Australia (Sourced AUD Ranges)

Most cost articles quote one number with no source. The ranges below come from Australian price guides we opened and read on 26 September 2026, plus Shopify's own Australian pricing page. They are typical Australian market ranges, not FactoryJet prices. We scope and quote each project after a call, because product count, integrations and B2B needs change the number more than anything else. The two build ranges disagree at the bottom end because they count different things: a well set-up store on a platform such as Shopify costs less than custom design and development with integrations. When a quote comes in, ask what it assumes is included, who writes product copy, and whether data migration, apps and training are in scope.

➡ Learn more: Ecommerce development in Australia

For the full breakdown, including apps, themes and developer rates, read our Shopify cost in Australia guide and our website cost in Australia guide.

Essential Features for an Australian E-Commerce Store

An Australian store needs a short list of things in the first build, not a later phase. Refund, warranty and returns wording that matches the consumer guarantees under Australian Consumer Law, visible before someone pays. GST handled correctly: prices shown GST-inclusive to consumers, tax invoices that meet ATO rules once you are registered, and clean data flowing to Xero or MYOB. Shipping rates from Australia Post or Sendle at checkout, with honest delivery estimates for regional customers in Queensland, Western Australia, Tasmania and the Northern Territory. Payments through Shopify Payments, Stripe or PayPal, with Afterpay and Zip for buy now, pay later. A privacy policy and consent set-up written for the Australian Privacy Principles, not pasted from an overseas template. And a mobile-first build that stays fast: compressed images, few scripts, and no app installed without a reason. If you sell to trade customers as well, add account-based pricing, quote requests that turn into orders, payment terms and quick reorder lists. Ask an agency to show each of these on a live store rather than tick it on a proposal.

Case Study: Trade and Retail Storefronts We Built on Commerceflo

GPSUK supplies promotional products to business customers in the UK. Their buyers reorder branded stock and often need a quote before they order. We built their B2B storefront on Commerceflo, our own commerce platform, so trade accounts log in to a catalogue priced for their account, and a quote carries through to the order instead of being retyped. We also look after their SEO and AI search work. Belle Maison is a home decor and lighting wholesaler that sells to both retail shoppers and trade buyers. Their storefront, also built on Commerceflo, lets retail shoppers browse the catalogue while trade accounts see their own pricing and move from quote to order in the same place. Before that, trade orders came in by message and phone. Neither client is Australian. What carries over to an Australian wholesaler or distributor is the pattern: one store, per-account pricing, quote-to-order, and no double handling between a retail site and a wholesale portal. Read both on our case studies page.

How to Evaluate E-Commerce Agencies for Australian Consumer Law Compliance

Ask each agency to show you, on a live Australian store they built, where the refund and warranty wording sits and how it handles change-of-mind returns versus faulty goods. The ACCC's guidance on consumer guarantees is the reference point, and an agency that cannot talk about it plainly will not build it well. Ask how GST works in their builds: GST-inclusive display for consumers, correct tax invoices, and how B2B orders and exports are treated. Exports of goods are generally GST-free, but the settings and records still need to be right. Ask how they handle the Australian Privacy Principles: what the privacy policy covers, how marketing consent is recorded, and which third-party tools send data overseas. Remember that the unfair contract terms regime was strengthened in November 2023, with penalties now applying, so your own store terms deserve a proper review rather than a template. Finally, ask who keeps all of this current after launch. Rules change, apps change, and a store that was compliant at launch can drift. We review these points with each Australian client as part of support after launch.

Next.js vs Shopify vs WooCommerce for Australian Stores

Shopify is the fastest route for most Australian retailers. Hosting, security, checkout, AUD payouts, Afterpay and Zip all work out of the box, and the Australian plans cost A$56, A$149 or A$575 a month on monthly billing. The costs to watch are apps, which stack up quickly, and the extra 2% Shopify charges on Basic if you use an outside payment gateway. WooCommerce suits businesses already running a content-heavy WordPress site. The plugin is free, but someone has to keep WordPress, the theme and every plugin updated, and speed suffers when plugins pile up. A headless or custom build, often using Next.js in front of a commerce back end, gives you full control of design, speed and unusual workflows such as complex B2B pricing. It costs more to build and needs a team to support it, so it makes sense when you will use that control, not as a default. For most stores the honest answer is Shopify now, with a clear path to Shopify Plus or headless later if a specific feature requires it.

Still choosing a platform? See the best ecommerce platform in Australia for 2026, which compares Shopify, BigCommerce, WooCommerce and Maropost on AUD list prices, GST, Afterpay and Zip, and shipping.

Best Shopify Plus Agencies in Australia

Shopify is the platform most Australian direct-to-consumer brands end up on, so most searches for an ecommerce agency are in fact searches for a Shopify agency. Shopify Plus is the enterprise plan, and the agencies that work on it say so in their partner tier. We opened each agency's own website on 21 October 2026 and wrote down the tier and services it states about itself. Partner tiers are the agencies' own descriptions, so confirm them in Shopify's Partner Directory before you sign. One more thing to know when you compare lists: Flux publishes its own ranking of Australian Shopify Plus agencies and puts itself first. We include FactoryJet in ours and say so.

• Convert Digital (Melbourne, Sydney and Brisbane): Shopify and commercetools builds, systems integration, UX and conversion work. Describes itself as a Shopify Platinum Partner.
• Alinga (Gold Coast, Brisbane and Byron Bay): wholesale B2B, Shopify migrations and Klaviyo email. Describes itself as a Shopify Platinum and Klaviyo Platinum partner.
• The Hope Factory (Melbourne): design, Shopify Plus builds and growth work, an ecommerce agency since 2008 and a Shopify Partner since 2013. Describes itself as a Shopify Premier Partner, which it explains is one tier below Platinum.
• Prosper Digital (Melbourne and Sydney): Shopify Plus strategy, UX, development and optimisation since 2017. Describes itself as a certified Shopify Plus Partner.
• Flux (Melbourne, with team in Los Angeles and London): Shopify Plus migrations and headless builds, with "210+ Shopify stores built since 2012" on its home page. Describes itself as a Shopify Plus Partner.
• Seventyfour Design (Melbourne): theme work, custom apps, migrations and ERP integrations. Describes itself as a Certified Shopify Plus Partner.

Which one fits depends on the job more than the badge. A Platinum or Premier tier tells you the agency does a lot of Shopify work. It does not tell you whether it has built trade pricing, an ERP connection or a headless storefront like the one you need. Ask for two live Plus stores in your category, and ask who will be on your account after launch.

Shopify Plus Agencies in Melbourne

Five of the six Shopify Plus agencies above have a Melbourne office or team; only Alinga does not. We read each agency's own site again on 29 October 2026 and kept only what it says about itself. Partner tiers are self-described, so check them in Shopify's Partner Directory.

1. The Hope Factory: Shopify Premier Partner, "one tier below Platinum" in its own words, with its team based in Melbourne and on Shopify since 2013. Suits brands that want design, build and growth work from one team.
2. Convert Digital: Shopify Platinum Partner with an office on Hoddle Street, Abbotsford. Builds on Shopify Plus and commercetools, and its site describes moving a client from Magento 1 to Shopify Plus. Suits brands that need systems integration.
3. Prosper Digital: certified Shopify Plus Partner with a studio on Wilson Street, South Yarra. Covers Plus strategy, UX, development and optimisation.
4. Seventyfour Design: Certified Shopify Plus Partner. Lists ERP integrations, custom app development and replatforming from Magento, WooCommerce and BigCommerce.
5. Flux: Shopify Plus Partner with team in Melbourne, Los Angeles and London, and "210+ Shopify stores built since 2012". Suits brands selling into the US or UK, and headless builds.

For a Melbourne brand weighing a rebuild, our Melbourne page covers Shopify and Shopify Plus builds, Magento and WooCommerce migrations, B2B ordering and Xero sync for Melbourne businesses.

Shopify Plus Agencies in Sydney

Fewer Shopify Plus agencies keep a Sydney office. Two agencies on this list, Convert Digital and Prosper Digital, run Sydney and Melbourne offices. Checked on each agency's own site on 29 October 2026.

1. Convert Digital: Shopify Platinum Partner, Sydney office at 285A Crown Street, Surry Hills, alongside Melbourne and Brisbane.
2. Prosper Digital: certified Shopify Plus Partner, Sydney studio on Crown Street, Surry Hills, the same team as its South Yarra office.
3. Moustache Republic: 320 Pitt Street office and an Auckland one, building on Shopify and BigCommerce since 2013. Its home page does not state a Shopify Plus tier, so ask.
4. The Hope Factory: based in Melbourne, with a Shopify experts page for Sydney brands.

For Sydney brands, our Sydney page covers ecommerce web development, Shopify Plus, migrations and B2B ordering.

FactoryJet (that is us): our senior engineers work remotely in Australian business hours, so we fit buyers in Melbourne, Sydney or anywhere else in Australia. A registered Shopify Partner, strongest on Xero, MYOB and ERP integrations, migrations and B2B. We stay on to support the store after launch, and you own the code and every account. A Shopify build does not need anyone on site. What matters is live stores in your category and who answers when an app update breaks the cart.

For how we build Shopify stores for Australian brands, see our Shopify development service in Australia. If your store already exists and the problem is rankings, our ecommerce and Shopify SEO service covers collection pages, product data and migrations.

Maintenance and Security Requirements for Australian E-Commerce Sites

A store is never finished. Platform and app updates, payment gateway changes and new browser rules all land after launch, and each one can break checkout without warning. On WooCommerce that means regular core, theme and plugin updates, daily backups and uptime monitoring. On Shopify the platform handles hosting and security, but apps, theme changes and checkout customisations still need someone watching them. IBM's 2025 Cost of a Data Breach Report is a useful reminder that recovery costs far more than prevention, even if a small retailer's numbers look nothing like its global averages. Beyond security, keep your refund, warranty and privacy wording in line with current Australian rules, and keep an eye on speed as the catalogue and the app list grow, because Core Web Vitals slip quietly. Keen to Design puts website maintenance at $500 to $3,000 a year (April 2026), and busy stores often sit higher. Whoever builds your store should be able to tell you exactly who handles each of these jobs after launch, and how quickly they respond. That is the question most agencies avoid, and the one we answer first. See our website maintenance service in Australia.

➡ Ready to plan your store? See ecommerce development for Australian businesses or our Shopify development service in Australia.