Keepa shows you the product. Helium 10 shows you the keywords. Neither shows you who holds the sales. FBA Pulse maps 23,000+ UK sellers earning £10k+ a month, matched to Companies House. See how crowded a category is before you commit stock to it.
One of 5,000+ UK subcategories measured. Revenue figures are estimates.
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Every tool tells you about products: sales rank, price history, review counts. None of them tell you about the market. How many UK sellers are in a category, who holds the revenue, and whether you're walking into an open field or one that's already taken.
I kept buying stock without knowing that, and it cost me. So I built the answer. UK Amazon storefronts earning an estimated £10k+ a month, matched against the Companies House register and measured against the category they sell in.
Some categories have three sellers holding nearly all of it. Some have a hundred sellers and no clear leader. You can't tell which from the outside, and the stock cost is the same either way.
Three categories, three different fights
SIM-Free Phones: 148 sellers, top three hold 24.1%.
Plenty of sellers and no one running away with it. A new seller has room to take a share.
Garden Sheds: 22 sellers, top three hold 85.4%.
Few sellers and most of the revenue sits with three of them. You'd be fighting for what's left.
Noise Cancelling Headphones: 11 sellers, top three hold 98.5%.
Close to closed. Worth knowing before you buy the stock, not after.
Where the data comes from. UK company records are matched from the Companies House public register. Category and seller figures are derived from public storefront signals, so revenue is an estimate rather than reported accounts. Use it to compare sellers and size a category, not as filed financials. Refreshed monthly. Take 100 rows free and check any of it yourself.
100 UK Amazon sellers, free, no card. Same columns as the paid packs. Open it, sort by category, and see for yourself who is selling in the space you're looking at.
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Check the data for free, size up one category, or take the full UK file.