At a glance
| Where it sells | mountainwarehouse.com, Mountain Warehouse’s GB website5 |
|---|---|
| Currency | Pounds sterling (GBP), the currency of mountainwarehouse.com5 |
| Main categories | Outdoor clothing and equipment, such as jackets, hiking boots, tents, sleeping bags, ski goggles and GPS units4 |
| Who can sell | Companies registered in the UK and for UK VAT that hold stock in the UK and deliver directly to customers4 |
| Fees | Not listed on the seller site; commission and any monthly fee are set by Mountain Warehouse, so ask when you apply4 |
| How to join | Click “Apply now” on sellers.mountainwarehouse.com, which is an email link rather than a form4 |
What Mountain Warehouse Marketplace is
Mountain Warehouse is a British outdoor clothing retailer, founded in 19976. On 24 May 2022 it launched its own online marketplace, opening mountainwarehouse.com to products from other sellers1.
Two launch reports named Mirakl as the platform: ChannelX called it “an online marketplace powered by Mirakl”2, and FashionUnited said it was created with Mirakl’s software platform3.
As of November 2026 the marketplace is still recruiting: the footer of mountainwarehouse.com links “Sell On our Marketplace” to the seller site, sellers.mountainwarehouse.com5.
The seller site cites “over 27 million outdoors enthusiasts”, without a date4. At the 2022 launch, Retail Gazette reported 1.7 million active online customers and 600,000 weekly visitors1, and Apparel Resources counted more than 330 stores across the UK, Europe, New Zealand and North America6.
Who can sell on Mountain Warehouse Marketplace
Mountain Warehouse’s seller site lists four things you need in place4:
- You are a registered company in the UK.
- You are registered for UK VAT.
- You hold stock in the UK and deliver directly to customers.
- You “love adventure”.
Under “What we are looking for”, it describes brands whose products fit its motto, “Getting Everyone Into the Outdoors”4. At the 2022 launch, FashionUnited reported that Mountain Warehouse was “actively” recruiting outdoor brands that align with its values3.
If you are based outside the UK. The UK company, UK VAT and UK stock requirements apply to every seller, so a business based in another country needs all three before it applies4.
How to apply
Check the requirements
You need a UK-registered company, UK VAT registration and UK stock that you can ship to customers yourself4.
Click “Apply now”
On sellers.mountainwarehouse.com the button is an email link, so your application goes by email rather than through a form4.
Ask about fees and payouts
The seller site gives no commission, monthly fee or payout terms, so ask Mountain Warehouse for them before you sign4.
Mountain Warehouse has a Marketplace Onboarding team and a Category Management team to support sellers4.
Delivery, returns and customer care
You send each order from your own UK stock, as the seller conditions require4. At the 2022 launch, trade press described this split of work13:
| Task | Handled by |
|---|---|
| First-line customer care | Mountain Warehouse13 |
| Order processing and marketing | Mountain Warehouse1 |
| Shipping, delivery and tracking | The seller3 |
| Customer returns | The seller13 |
| Pricing and second-line customer care | The seller13 |
These descriptions date from the 2022 launch13, so ask Mountain Warehouse how returns and customer care work now before you join.
Connect Mountain Warehouse to invtri
Get approved by Mountain Warehouse
Apply through the seller route described above. Mountain Warehouse decides on approval and sets its own fees.
Create your shop API key
Once approved, open your seller back office and generate your shop API key. invtri works with your own key, so your account and your sales stay yours.
Add the storefront in invtri
Pick Mountain Warehouse from invtri’s Mirakl list if it’s listed, or choose Other Mirakl marketplace. Paste the marketplace’s API address and your shop API key, set your fee percentage for Mountain Warehouse and test the connection.
List, import and sync
invtri lists your offers by EAN against the Mountain Warehouse catalogue and imports the offers you already have live. Orders arrive every 15 minutes to accept or refuse, with optional auto-accept when your stock covers the whole order; stock and prices update on your schedule, and tracking goes back to Mountain Warehouse.
Mirakl marketplaces is a premium channel: one add-on covers every approved Mirakl storefront, with nothing counted per storefront. invtri is a pay-once licence plus monthly hosting, with no per-order fees. All Mirakl marketplaces · Find your shop API key · Pricing
Questions sellers ask
Can I sell on Mountain Warehouse Marketplace from outside the UK?
Only through a UK business: the seller site requires a UK-registered company, UK VAT registration and stock held in the UK4.
How do I apply?
Use “Apply now” on sellers.mountainwarehouse.com, which opens an email rather than a form4.
What does Mountain Warehouse charge sellers?
It does not list fees on its seller site4. Ask for its commission, any monthly fee and the payout dates before signing.
Does Mountain Warehouse hold or ship my stock?
Its conditions ask you to hold stock in the UK and deliver directly to customers4.
What can I sell there?
Outdoor products such as jackets, hiking boots, tents, sleeping bags, ski goggles and GPS units4. At the 2022 launch, Mountain Warehouse also planned kidswear, cycling, outdoor living and garden, and pet products1.
Sources
Facts checked on 8 November 2026 from the sources below. Marketplaces change their rules and fees, so check the marketplace’s own seller pages before you apply.
- Mountain Warehouse launches its own online marketplaceRetail Gazette, 24 May 2022
- Mountain Warehouse launches online marketplaceChannelX, 24 May 2022
- Mountain Warehouse launches outdoor marketplaceFashionUnited, 24 May 2022
- Mountain Warehouse Marketplace sellers pageMountain Warehouse, accessed 8 November 2026
- Mountain Warehouse home pageMountain Warehouse, accessed 8 November 2026
- British outdoor clothing retailer Mountain Warehouse launches marketplaceApparel Resources, 27 May 2022