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About SellerSyd

Built by people who've run marketplace accounts

SellerSyd started inside an agency managing Amazon accounts for brands. We kept finding the same thing: money owed to sellers that nobody had time to chase, and profit numbers nobody fully trusted. So we built the tool we wanted.

Our mission

Help every seller keep what they earn

Selling on marketplaces means thousands of fees, returns, reimbursements and inventory movements every month. Errors are inevitable, and they rarely favor the seller. Most businesses either hire people to reconcile it all by hand, or accept the losses without knowing their size.

SellerSyd does that work continuously and automatically, for sellers running their own brands and for the agencies that run stores for them. We started with Amazon and are bringing Shopify, Walmart and more into the same place, because modern brands sell everywhere.

What we believe

Our principles

Accuracy first

A wrong number is worse than no number. We reconcile before we report.

Show the evidence

Every finding links back to the orders and transactions behind it.

Earn trust

We protect your data like it's our own, and only ask for the access we need.

Sellers first

We build what saves sellers time and money, not what looks good in a demo.

Start finding the money you're owed

Free to start. Connect your first store in minutes.