Fashion is the category where a Shopify store is tested hardest. Sizes have to fit or the parcel comes back, a drop can bring a month of traffic in an hour, and a brand that sells in two countries sells in two size systems. Plenty of agencies show fashion logos. Fewer publish what they changed for a named fashion brand. This list is the Shopify Plus agencies that name fashion and apparel clients on their own sites, checked on 7 October 2026, with the results they publish and when those results date from.
Key takeaways
- Six agencies below name fashion clients on their own sites. Four publish a number tied to a named fashion brand; read each one for what it measured, because some are store builds and some are email, SEO or paid media.
- The fashion-specific questions are size and fit, drop-day traffic and selling abroad. Ask for a brand where each one was solved, not a description of the method.
- Our own agency leads the list, labelled as ours, and its best figure is a 27% rise in repeat purchases for a hair brand; that figure comes from beauty because we have not yet published a fashion case study. What we say about every other agency comes from its own website.
The agencies
Aqsa Shahzad Official: USA (our agency)
Best for: clothing and accessories labels that want a custom Shopify Plus theme coded from their own designs, a migration that keeps their search rankings, or wholesale on the same store, with the same senior engineers from scoping to support and the price agreed in writing first.
Three figures from our own clients:
- Repeat purchase rate 27% higher at True Glory Hair, an online wig and hair brand: we built the store on Shopify Plus, have kept it on retainer for three years and run its retention on Attentive. Read the write-up
- Revenue growth of 22% for OuchieCap, a children’s comfort brand run by its inventor, for which we built a custom theme and a sub-brand, OuchieSnuggles. Read the write-up
- LCP of 1.3 seconds, as Shopify’s speed report measures it, for KIF Smart Refill, whose custom theme we coded from the brand’s Figma files. Read the write-up
What it means for a fashion label: none of the three is a fashion brand, and we have not published a fashion case study; our nearest work is DTC beauty, such as the CocoLash store. The fashion work this page asks about is what we build: size and fit content kept in the theme, a storefront that stays quick when a drop brings a month of traffic in an hour, migrations with a redirect map so rankings carry over, wholesale on Shopify Plus B2B, and themes built from your designs through Figma to Shopify.
What a build costs: one number, in writing, before any payment. A new store or a migration comes to $40,000–$100,000; once integrations are involved, a Plus build comes to $100,000–$200,000; headless gets one quote for the whole build. See the packages page for what each covers and our Shopify Plus development services for the scope. Book a call to get a figure for your label.
Charle: New York, London and Manchester
Best for: fashion labels with regional stores that need shoppers routed to the right one, and brands that want a published monthly support price.
Founded in 2018 and describing itself as “an accredited Shopify Plus Partner”, Charle has a dedicated fashion and apparel service page and names Billionaire Boys Club, Cambridge Satchel, Au Départ, Vollebak and Unndr among its clients. For Billionaire Boys Club it built geolocation routing so shoppers land on the right regional store. It does not publish fashion results, but it is the only agency here that prints a price: a support membership from £709 a month plus VAT for eight hours of technical work. charleagency.com
Swanky: UK, France and Australia
Best for: luxury labels leaving Magento for Shopify Plus, and swimwear or clothing brands that need a fit guide for each style.
A self-described “Shopify Platinum Partner” since 2010, with a luxury-fashion page and the deepest set of fashion migration case studies on this list. Its Magento to Shopify Plus migrations report +35% year-over-year revenue for Olivia von Halle, +66% for Needle & Thread and +72% for Cefinn. Those results compare 2019 and early 2020 with the year before, so ask what the team has shipped for fashion since. It also built a style-by-style fit guide for bond-eye swim. swankyagency.com
Avex Designs: New York
Best for: streetwear and luxury fashion brands that want UX and conversion work from a New York team.
A New York agency that calls itself “a Platinum Shopify Plus agency” in its homepage title, with a portfolio running from streetwear to luxury: KITH, O’Neill, Vitality, Marchesa, Brandon Blackwood, Spiritual Gangster, Kit and Ace and KHAITE. Its KITH page reports a “235% Conversion Rate Increase” from a UX design and strategy engagement, O’Neill a 25% lift in conversions and Vitality a 168% increase in conversion rate. The pages give no dates, so ask for the period behind each figure. Its Hugo Boss work is email, not a store build. avexdesigns.com
Eastside Co: London and New York
Best for: UK fashion and footwear brands that want search and marketing support alongside the store.
Founded in 2012, a stated “Shopify Platinum Partner Agency” and one of the first UK agencies accredited for Shopify Plus, with a broad UK fashion and footwear portfolio: Lazy Oaf, Holland Cooper, Trunk Clothiers, Oliver Sweeney, Raging Bull, Motel Rocks and Cutler and Gross. Its published fashion numbers come from its search and marketing teams rather than from builds: Raging Bull reached position two for “polo shirts” within three months of the new store launching, and Cutler and Gross grew its ranking keywords 29% after a Magento 2 migration. Its homepage and About page list different office cities, so confirm where your team would sit. eastsideco.com
MM Shopy Devs: Barcelona and London
Best for: fashion-first brands that want a migration, UX and CRO from an agency whose core focus is fashion, with starting prices on its site.
Founded in 2017, a stated “Certified Shopify Plus Partner” whose core focus is fashion: Nude Project, Hunza G, Marfa Stance, Anglo Italian, Sabyasachi and Private White VC. It publishes the largest fashion results here: “+389% Revenue performance after the migration” and +113% conversion rate for Hunza G, and +65.2% yearly revenue growth for Nude Project from an ongoing UX, development and CRO partnership. Neither page gives a date range. It also publishes prices: store setups from £2,000, projects from £5,000 and custom themes from £30,000. mmshopydevs.com
Solo Media Group: New York, Los Angeles and Miami
Best for: US apparel brands that want a team in New York, Los Angeles or Miami and a migration record that kept SEO intact.
A self-described “Shopify Platinum Agency” with offices in three US cities and apparel clients including Woods by Jordyn, Alp N Rock, Huk Gear and Sockwell. Woods by Jordyn reports an 85% increase in website traffic month over month after launch; Alp N Rock reports a roughly 40% faster page load with no SEO loss through its migration. Fashion is one vertical among several for Solo, alongside beauty, wellness and food. solomediagroup.com
What to ask a fashion agency
- Show me a size-and-fit feature you built, and what it changed. Fit guides, size charts by style and shoe-size converters exist on several of these agencies’ sites. Ask for the brand, the feature and what happened to returns or conversion afterwards.
- What happens on drop day? Ask which launch they handled, what the traffic did, and what they changed beforehand: countdown pages, queueing, inventory reservation, a theme that stays fast under load.
- How do you sell abroad? Currencies, duties, size systems and routing shoppers to the right store. Ask for a brand where Shopify Markets or a cross-border partner is live, and who maintains it.
- Is the number from a build, or from marketing? Half the fashion results published by these agencies come from email, SEO or paid media. Both matter, but they tell you different things about who you are hiring.
Side by side
| Agency | Where (per its site) | Named fashion clients | Published fashion result | Prints prices |
|---|---|---|---|---|
| Aqsa Shahzad Official (ours) | USA | None published yet (beauty and hair DTC instead) | None in fashion; True Glory Hair (hair) repeat purchases +27% | Yes ($40k–$200k) |
| Charle | New York, London, Manchester | Billionaire Boys Club, Cambridge Satchel, Au Départ, Vollebak | — | Support from £709/month |
| Swanky | UK, France, Australia | Olivia von Halle, Needle & Thread, Cefinn, bond-eye | +35% to +72% YoY revenue after migration (2019–20) | No |
| Avex Designs | New York | KITH, O’Neill, Vitality, Marchesa, KHAITE | KITH +235% conversion rate (undated) | No |
| Eastside Co | London, New York | Lazy Oaf, Holland Cooper, Raging Bull, Cutler and Gross | SEO and marketing results; Raging Bull #2 for “polo shirts” | No |
| MM Shopy Devs | Barcelona, London | Nude Project, Hunza G, Marfa Stance, Anglo Italian | Hunza G +389% revenue after migration (undated) | Yes (from £2,000) |
| Solo Media Group | New York, Los Angeles, Miami | Woods by Jordyn, Alp N Rock, Huk Gear, Sockwell | Woods by Jordyn +85% traffic after launch | No |
Next step
Shortlist two agencies with a fashion result you can trace to a build, ask the four questions above, and run the answers past our 14-question hiring guide and the nine red flags. If you run a beauty brand rather than a clothing one, the beauty agency comparison applies the same rule to that category.
Every fact about the agencies above comes from the agency’s own website, read on 7 October 2026; follow the links to check them. We left out agencies whose sites we could not read or that do not claim Shopify Plus work.
