At a glance: seven marketplaces side by side
Each row draws on the retailer’s own pages first, then Mirakl and trade press. “Not published” means the retailer’s seller pages do not state it.
| Marketplace | What it sells | Who can sell | How to join | Fees |
|---|---|---|---|---|
| B&Q (diy.com) | DIY and outdoor products, now widening into tech and home office23 | UK sellers, plus sellers based in Ireland, Italy, Poland, the Netherlands, Spain and Germany (reported November 2025)24 | Application form on Kingfisher’s Merchant Hub2 | Small subscription plus commission on sales; amounts not published2 |
| Debenhams | Fashion, beauty and home; “almost all products”, with exceptions56 | Applicants reviewed by its Sales Team, with a UK bank account and KYC checks at onboarding6 | Online registration, answered within one working day6 | Monthly subscription on a 6-month rolling agreement, plus commission; amounts not published6 |
| Tesco Marketplace | Baby, toys, beauty, homeware, garden, DIY and pet care, plus dishwashers, fridges and freezers (reported January 2025)7 | Not published; Tesco works with sellers who share its values89 | Apply-to-sell page at toolkit.tesco.com, linked from Tesco’s seller FAQ89 | Not published89 |
| Argos Trusted Sellers | Launched with furniture, home and toys; now also health and beauty, gifting and electricals1 | Brands and retailers Argos selects; criteria not published1011 | Register to sell page; Argos assesses applicants and contacts those that match1213 | Not published13 |
| Superdrug Marketplace | Health and beauty, plus fashion since May 20251415 | “Verified” sellers; no criteria published14 | Email [email protected]; no online form on the seller page14 | Commission plus a monthly fixed fee; rates not published14 |
| The Range | Furniture, home décor, garden, DIY, toys and pets (2024)16 | In 2024, sellers needed a UK company registration number16 | Application at marketplace.therange.co.uk17 | Reported in 2024, before the Mirakl move: no monthly fee, 11–15% commission16 |
| Mountain Warehouse | Outdoor clothing, footwear and kit, such as tents and sleeping bags18 | UK-registered companies with UK VAT and stock held in the UK18 | “Apply now” email link on its sellers site18 | Not published18 |
What each marketplace sells, and to whom
B&Q recruits sellers of “DIY and outdoor products” for diy.com through Kingfisher’s Merchant Hub2. By June 2026 it was pushing to be “the marketplace for everything in the home”, ChannelX reported, and had opened a Cameras and Wearable Tech category19. The marketplace also brings B&Q new shoppers: about half its marketplace customers in the six months to 31 July 2025 were new to diy.com20.
Debenhams Group bills Debenhams as “Britain’s Online Department Store”, an online-only business built on fashion, beauty and home5. Its seller page says it supports “almost all products, but there are exceptions”6. The exceptions include grey goods, products without CE, UKCA or UKNI marking, knives, fireworks, real fur, tobacco and e-cigarettes6. The same page cites 19 million customers and 60% returning customers, without dates6.
Tesco pitches Tesco Marketplace to sellers as a way to reach “tens of millions of customers” on what it calls “the UK’s largest grocery platform”9. In January 2025, Grocery Gazette listed baby, toys, beauty, homeware, garden, DIY and pet care7. Newer lines then included dishwashers, fridges, freezers and art and craft supplies7. Shoppers receive marketplace items separately from their groceries21.
Products from Argos Trusted Sellers appear on the Argos website and in its app, alongside Argos’s own range11. Furniture, home and toys came first, then health and beauty, gifting and electricals; ChannelX named Clarins, Dermalogica and Medicube among the beauty brands1.
Superdrug Marketplace offers “a broad range of health and beauty products”14. In May 2025 it added 60 fashion brands, among them Nike and Regatta, “handpicked due to their popularity”, Retail Gazette reported15. Its marketplace terms, last updated in August 2022, let shoppers earn Health & Beautycard points on marketplace purchases but not pay with them22.
The Range sells home, leisure and lifestyle products, Mirakl said in April 202617. Its owner, CDS Superstores, also owns wilko, Homebase and Bathstore17.
Mountain Warehouse lists outdoor apparel, tents, sleeping bags, hiking boots, jackets, ski goggles and GPS units on its seller page18. It looks for sellers who fit its aim of “Getting Everyone Into the Outdoors”18.
How big each marketplace is
Retailers report different measures, from sales to sellers, products or visits, and for different periods. Read the figures as a guide to scale, not a ranking.
| Marketplace | Published figures |
|---|---|
| B&Q | Marketplace gross merchandise value (GMV) of £306m in the six months to 31 July 2026, up 34%23. Over 1.2 million products from more than 1,100 verified sellers, and over 320m visits a year (ChannelX, February 2026)24. |
| Debenhams | GMV of £730m in its 2026 financial year25. More than 15,000 brands and 300 million annual visitors (Mirakl, November 2025)26. |
| Tesco Marketplace | Over 1,000 sellers, up more than 80% in a year (October 2026)27. Over 450,000 SKUs, and average weekly traffic more than doubled during 2025/2628. |
| Argos Trusted Sellers | More than 100 sellers and 100,000 SKUs (2 November 2026)11. Argos cited “over one billion visits” a year to its website (February 2026)12. |
| Superdrug Marketplace | More than 300 partner brands at its November 2022 launch29; 60 fashion brands added in May 202515. |
| The Range | Over 200 million visits in 2025, almost one million products, and 45% of online sales from marketplace partners (April 2026)17. |
| Mountain Warehouse | 1.7 million active online customers at its May 2022 launch30. Its seller page cites “over 27 million outdoors enthusiasts”, undated18. |
The marketplace already carries real weight at some of these retailers. At B&Q it made up 46.8% of e-commerce sales in the six months to 31 July 202520. At Debenhams, third-party GMV is “now surpassing first-party sales”, Mirakl said in April 202631.
Who can sell: UK company, VAT and sellers based abroad
Mountain Warehouse is the most explicit. Its seller page asks you to be a registered company in the UK and VAT registered in the UK, and to hold stock in the UK and deliver directly to customers18. The others say less:
- B&Q: sellers apply through Kingfisher’s UK Merchant Hub, which sets out no rule on where they must be based2; sellers based in six EU countries also sell to B&Q’s UK customers4.
- Debenhams: you connect a UK bank account and complete KYC (know your customer) checks during onboarding6.
- The Range: in 2024 it asked for “your UK company registration number and details about your company and products”16. Check that this still applies since its 2026 move to Mirakl17.
- Superdrug: sellers are “verified”, but no eligibility criteria are published14. Its terms, last updated in August 2022, require delivery to a UK address22.
- Argos: each Trusted Seller is approved against Argos’s standards, and the selection criteria are not published1011.
- Tesco: its seller FAQ says “Quality, trust and reliable customer service matter to us”, but sets no company, VAT or location rule8.
If you are based outside the UK:
- B&Q has the clearest route for sellers based in the EU. German sellers joined those from Ireland, Italy, Poland, the Netherlands and Spain in November 20254.
- Kingfisher put B&Q’s cross-border merchants at 69 on 31 July 202520 and at more than 80 in its September 2026 results23.
- Neither Kingfisher’s Merchant Hub nor the November 2025 ChannelX report says which VAT registration or returns address B&Q expects from these sellers24. Ask B&Q, and check the UK VAT position with your adviser.
- In 2024, B&Q’s head of marketplace called international sellers complex “because we need to look at cross border shipping and the tax implications”32.
- Argos’s July 2026 terms limit delivery to UK addresses but say nothing about where the seller must be based33.
- Superdrug publishes no rule on seller location14; in March 2023, diginomica reported that it planned to onboard more sellers from outside the UK34.
How you apply: forms, reviews and email
Online applications. Signing up for B&Q on Kingfisher’s Merchant Hub takes “only 30 seconds”, and set-up “typically takes less than five working days”2. A Business Development Representative guides your onboarding, then the Account Growth team supports you2. Tesco’s seller FAQ links to its apply-to-sell page8. The Range takes applications at marketplace.therange.co.uk17.
Reviewed registration. Debenhams asks you to “Register now” on its Register to sell page6. Its Sales Team reviews each application and will get back to you “within one working day”, before a KYC check6.
Curated, or by email. Mirakl says Argos Trusted Sellers is “not an open marketplace”11. You apply through Argos’s Register to sell page13. In February 2026, Argos asked interested sellers to complete a “short questionnaire” and said a team member would be in touch if there was a match, ChannelX reported12. Superdrug takes applications by email, at [email protected], and its seller page shows no online form14. On Mountain Warehouse’s sellers site, “Apply now” also opens an email, and its Marketplace Onboarding and Category Management teams support new sellers18.
Several retailers stress that sellers are checked or chosen. ChannelX describes B&Q’s sellers as “verified”24. In 2024, The Range told applicants that “application decisions are quick”16.
What is published about fees and payouts
Commission rates are the hardest facts to find. B&Q, Debenhams and Superdrug describe their fees without giving amounts2614. Tesco, Argos and Mountain Warehouse publish no fees on their seller pages891318.
- B&Q: a “small subscription fee”, plus commission charged only on sales2. The mix of selling fees can differ by product, the Merchant Hub adds2. ChannelX listed “Zero listing fees and transparent commission” among the seller benefits4.
- Debenhams: a monthly subscription on “a simple 6 month rolling agreement”6. You receive “the net sales value less the commission and VAT on commission”6. Payments go out on the 14th and 28th of each month, once an order is 21 days old, shipped and not refunded6.
- Debenhams Daily Advance: since October 2026, eligible sellers can take up to 80% of shipped sales revenue daily, with the rest paid at the standard payment, minus fees35. It has no subscription, set-up cost or minimum term, and its fee rate was not reported35.
- Superdrug: “sellers pay a commission on sale and a monthly fixed fee”14. In 2023, ChannelX reported that the shopper’s payment is held until shipping is confirmed, then released to the brand36.
- The Range: in July 2024, before the move to Mirakl, ChannelX reported free sign-up, no monthly fee and commission of 11–15% depending on category16. A cost-based option let The Range set the retail price and keep the difference above your price16.
- Argos: Argos takes the shopper’s payment for you; its terms describe it as providing “payment collection facilities”, not as the seller33.
Debenhams and The Range also sell advertising to their sellers through Mirakl Ads3117. Mirakl’s announcement for The Range gives no price for it17.
Delivery, returns and customer service compared
| Marketplace | Delivery | Returns |
|---|---|---|
| B&Q | From your own stock, with your own courier; currently free to the customer2 | Ask B&Q for the rules when you apply |
| Debenhams | Options include “Delivered by Debenhams” and a hosted fulfilment solution6 | Ask Debenhams for the rules when you apply |
| Tesco Marketplace | Sellers send by post or courier, separately from grocery orders; tracking in the Tesco account or app21 | Change of mind: contact the seller within 30 days; faults: report within 12 months37 |
| Argos Trusted Sellers | Seller-arranged courier, to UK addresses only33 | 30 days from delivery to request a return; refund within 14 days of getting it back33 |
| Superdrug Marketplace | Sellers ship direct, usually in 3 to 5 working days, in a separate parcel38 | Up to 28 days under terms dated August 2022; sent to the seller, at the shopper’s cost unless the seller says otherwise2239 |
| The Range | Partners were expected to “offer fast delivery options” in 202416 | Items “sold and dispatched by our Range Plus Partners” cannot be returned at its stores; the help article does not name the marketplace40 |
| Mountain Warehouse | From stock you hold in the UK, direct to the customer18 | Sellers handled customer returns at the May 2022 launch41 |
Store services often stop short of marketplace items. Argos Trusted Seller items cannot use Click & Collect or go back to an Argos store10, and Superdrug’s stores and warehouse cannot process marketplace returns39. B&Q is going the other way. It piloted marketplace click & collect in 2025, aiming for 300 stores20, and in 2026 credited store click & collect for part of its marketplace growth23.
Who deals with the shopper varies too. Debenhams’ after-sales team takes customer contact and raises issues with you through Mirakl6. Argos tells shoppers not to contact its support teams about Trusted Seller items10. When its marketplace opened in May 2022, Mountain Warehouse handled first-line customer care, leaving the second line to sellers41.
Tesco backs shoppers with “a full refund, repair or replacement within the first 6 months” on faulty items37. If a seller refuses a return, the shopper can go to Tesco, then to an alternative dispute resolution (ADR) provider such as Consumer Arbitration37.
Recent changes: 2025 and 2026
2025
- May: Superdrug moved into fashion with 60 brands15.
- 31 July: B&Q had 69 cross-border merchants, Kingfisher later reported, after opening its marketplace to sellers based abroad20.
- October: Tesco moved its marketplace, relaunched in June 2024, onto Mirakl2842.
- November: B&Q added Germany to the EU countries its sellers can be based in4.
- 25 November: Debenhams Group renewed its Mirakl partnership and launched retail media on Mirakl Ads26.
2026
- February: Argos opened early-access applications for a Mirakl-powered marketplace due within 12 months12.
- March: The Range completed its phased move from its in-house platform to Mirakl, announced on 13 April17.
- April and June: B&Q opened a Tech & Home Office category, then a Cameras and Wearable Tech category319.
- May: B&Q launched a Buy Box for third-party merchants, which Kingfisher says drives competition between them4323.
- July: Argos’s owner, Sainsbury’s, agreed to sell it to Swift Partners; the deal is expected to complete in February 202744.
- 7 October: Tesco said its marketplace had passed 1,000 sellers, helped by an “improved AI-enabled onboarding process”27.
- 8 October: ChannelX reported the official launch of Argos Trusted Sellers, after a July trial with 40 selected partners1.
Why Boots and John Lewis are not in the table
Boots announced an invitation-only marketplace, “Powered by Mirakl”, in September 2022 and planned to launch it in spring 202345. In September 2023, Retail Gazette reported that Boots had shelved the plan to focus on its existing dropship programme46.
John Lewis chose a different model in October 2025: a “curated supplier model” on Mirakl for hand-picked premium brands47. The brands ship direct and John Lewis does not buy or store their stock; footwear brand Russell & Bromley was one of the first47.
Questions to ask before you apply
Fill these gaps before you spend time on an application:
- B&Q: the subscription and commission amounts and, if you are based in the EU, the VAT and returns-address rules24.
- Debenhams: the subscription and commission amounts6.
- Tesco: who can sell, the fees and the payout terms, none of which its seller pages state89.
- Argos: the fees and the selection criteria1311.
- Superdrug: the commission and monthly fee, and any changes to its marketplace terms since August 20221422.
- The Range: whether the 2024 terms, including no monthly fee and the UK company number, still apply on Mirakl1617.
- Mountain Warehouse: the fees, which its seller page does not show18.
Running several of these marketplaces together
Five of the seven were reported on Mirakl in 2025 or 2026: B&Q4, Debenhams26, Tesco28, Argos11 and The Range17. Superdrug and Mountain Warehouse launched on Mirakl in 20222941. Each is still a separate shop, with its own approval, fees and shop API key.
invtri’s Mirakl channel covers every Mirakl storefront where you are approved. For each one, you paste its API address and the shop API key from that marketplace’s seller back office, and set its fee percentage. invtri lists your offers against that marketplace’s catalogue by EAN and imports offers already live. Orders then arrive for you to accept or refuse. Auto-accept is optional per storefront and applies only when your stock covers the whole order.
How Mirakl marketplaces work: Mirakl marketplaces. Step by step: Connect a Mirakl marketplace.
Questions sellers ask
Which UK retailer marketplaces take sellers based in the EU?
B&Q does: sellers based in Ireland, Italy, Poland, the Netherlands and Spain, and since November 2025 Germany, can sell to its UK customers4. Mountain Warehouse, by contrast, asks for a UK company, UK VAT and UK stock18.
Which of these marketplaces require a UK company?
Mountain Warehouse requires one18, and The Range asked for a UK company registration number in 202416. Debenhams’ seller page says you connect a UK bank account for payouts6. Tesco, Argos and Superdrug publish no rule on where your business must be registered83314.
Which of these marketplaces publish commission rates?
B&Q, Debenhams, Superdrug, Tesco, Argos and Mountain Warehouse give no amounts on their seller pages261491318. The newest reported figures for The Range, from 2024, are 11–15% commission and no monthly fee16.
Is the Argos marketplace open to new sellers?
It is curated rather than open: Mirakl calls it “not an open marketplace”11. You can still apply through Argos’s Register to sell page; Argos assesses applicants and contacts those that match1312.
When did Tesco Marketplace move to Mirakl?
In October 2025. Tesco’s 2025/26 results say it migrated the marketplace to Mirakl “to improve seller onboarding process and enhance the customer proposition”28.
Can shoppers return marketplace items to the retailer’s stores?
Not at Argos or Superdrug1039; Superdrug says marketplace returns “must always be sent directly to the marketplace seller”39. The Range’s help centre says items sold by its “Range Plus Partners” cannot be returned at its stores, though the article does not name the marketplace40.
Who delivers marketplace orders?
Usually you do. B&Q, Tesco, Argos, Superdrug and Mountain Warehouse all have sellers deliver their own orders221333818. Debenhams also offers “Delivered by Debenhams” and a hosted fulfilment solution6.
How fast can I get started?
B&Q says set-up typically takes less than five working days2, and Debenhams replies to applications within one working day6. Argos, Superdrug, Tesco and Mountain Warehouse publish no approval time1314918.
Can I manage several of these marketplaces in one place?
Yes, once each retailer has approved you. invtri’s Mirakl channel covers every Mirakl storefront where you are an approved seller, each connected with its own shop API key, while each retailer keeps its own rules and fees.
Sources
By the invtri team. Facts checked on 8 November 2026 from the sources below. Marketplaces change their rules and fees, so check each marketplace’s own pages before you act.
- Argos Trusted Sellers platform officially launchedChannelX, 8 October 2026
- Kingfisher Merchant Hub (UK)Kingfisher, accessed 8 November 2026
- B&Q Marketplace opens Tech & Home Office categoryChannelX, 27 April 2026
- B&Q Marketplace welcomes European sellersChannelX, 21 November 2025
- Debenhams (brand page)Debenhams Group, accessed 8 November 2026
- Register to sellDebenhams, accessed 8 November 2026
- Tesco Marketplace expands to over 300k SKUs just eight months after launchGrocery Gazette, 16 January 2025
- Becoming a seller on Tesco MarketplaceTesco, updated 17 September 2026
- Apply to sell on Tesco MarketplaceTesco, accessed 8 November 2026
- Trusted Sellers (Argos Help)Argos, accessed 8 November 2026
- How Argos is expanding customer choice without compromising trustMirakl, 2 November 2026
- Prepare to sell on Argos marketplace powered by MiraklChannelX, 10 February 2026
- Register to sell on ArgosArgos, accessed 8 November 2026
- Superdrug Marketplace sellers pageSuperdrug, accessed 8 November 2026
- Superdrug adds 60 fashion brands to online marketplaceRetail Gazette, 14 May 2025
- Meet the Marketplace – The RangeChannelX, 29 July 2024
- The Range advances its online marketplace with strategic Mirakl partnershipMirakl, 13 April 2026
- Mountain Warehouse Marketplace sellers pageMountain Warehouse, accessed 8 November 2026
- B&Q Marketplace continues to grow at paceChannelX, 12 June 2026
- Kingfisher half-year results, six months to 31 July 2025 (RNS)Kingfisher plc via London South East, 23 September 2025
- How Marketplace delivery worksTesco, updated 18 June 2025
- Terms & Conditions for Superdrug MarketplaceSuperdrug, last updated August 2022; accessed 8 November 2026
- Kingfisher half-year results, six months to 31 July 2026 (PDF)Kingfisher plc, hosted by DirectorsTalk, September 2026
- 2026 Leaders Interview – Aimé Matondo Fundani – B&Q MarketplaceChannelX, 5 February 2026
- Debenhams Group home pageDebenhams Group, accessed 8 November 2026
- Debenhams Group launches retail media with Mirakl Ads and accelerates marketplace growthMirakl, 25 November 2025
- Tesco PLC Interim Results 2026/27 (PDF)Tesco plc, hosted by DirectorsTalk, 7 October 2026
- Tesco PLC Preliminary Results 2025/26 (RNS)Tesco plc via London South East, 16 April 2026
- Superdrug launches first high street health and beauty retailer marketplaceMirakl, 21 November 2022
- Mountain Warehouse launches its own online marketplaceRetail Gazette, 24 May 2022
- Customer story: DebenhamsMirakl, 14 April 2026
- Interview: How B&Q is building its marketplace into the home of DIYRetail Gazette, 26 March 2024
- Trusted Sellers T&CsArgos, last updated 7 July 2026
- Superdrug sees healthy future with launch of digital marketplacediginomica, 13 March 2023
- Debenhams Group launches faster payment scheme for 30,000 marketplace partnersRetail Gazette, 20 October 2026
- Superdrug on opening a marketplaceChannelX, 11 April 2023
- Our Marketplace return promiseTesco, updated 26 October 2026
- Delivery informationSuperdrug, accessed 8 November 2026
- Returns & RefundsSuperdrug, accessed 8 November 2026
- Can I return my item in-store?The Range Help Centre, accessed 8 November 2026
- Mountain Warehouse launches outdoor marketplaceFashionUnited, 24 May 2022
- Tesco Marketplace to replatform to MiraklChannelX, 2 October 2025
- B&Q Buy Box launched for 3rd party merchantsChannelX, 5 May 2026
- Sainsbury’s agrees sale of Argos to Swift PartnersJ Sainsbury plc, 31 July 2026
- Boots launches brand new online marketplaceBoots UK, 6 September 2022
- Boots delays marketplace launch to focus on dropshippingRetail Gazette, 17 September 2023
- John Lewis accelerates ambition to be the home of premium brands with launch of curated supplier modelMirakl, 15 October 2025