SellerAmp and ArbiSource partner to streamline Amazon seller sourcing
SellerAmp and ArbiSource have announced a partnership designed to reduce the manual workload facing independent Amazon sellers, combining ArbiSource's automated retail-scanning capabilities with SellerAmp's product analysis platform, SellerAmp SAS. The integration targets the sourcing stage of Amazon reselling, where sellers must rapidly assess whether a product is sellable, in demand, and profitable before committing capital.
SellerAmp SAS is used by more than 100,000 Amazon sellers worldwide and surfaces data on profitability, return on investment, Buy Box competition, selling eligibility and deal-breaking alerts. ArbiSource takes a separate approach, scanning retailer websites automatically to surface potential arbitrage opportunities before a seller ever opens a browser tab manually. Under the partnership, the two platforms operate as a sequential workflow: ArbiSource identifies candidate products, and SellerAmp SAS analyses them.
"Sourcing is where sellers lose the most time and the most money," said Al Carlton, founder of SellerAmp. "This partnership takes the slog out of finding products and gives sellers the confidence to act fast on the ones that are actually worth it."
Market context
The scale of the UK independent seller ecosystem gives the partnership genuine commercial backdrop. Amazon's own figures put its total UK revenue at more than £30 billion in 2025, with more than 100,000 UK-based sellers contributing over £4 billion in export sales during the same period. Independent sellers now account for more than 60% of all units sold on Amazon globally, a figure the company has cited consistently in recent years.
That growth has also attracted a competitive field of tooling vendors. The Amazon seller software market includes established players such as Helium 10, Jungle Scout and Keepa, which collectively serve millions of sellers across product research, keyword tracking and price history. The SellerAmp and ArbiSource proposition targets a more specific workflow: online arbitrage, where sellers buy discounted retail stock and resell it on Amazon at a margin, rather than private-label or wholesale models. This niche is large but underserved by the dominant platforms, which tend to optimise for private-label brand builders.
Competitive positioning
Callum Boyd, founder of ArbiSource, framed the partnership as a levelling mechanism for smaller operators. "UK sellers are up against a global marketplace, often on their own," he said. "This gives them the speed and edge that used to belong only to the big players."
The claim has some substance. Large retail buyers use automated purchasing and replenishment systems that most independent sellers cannot replicate. Automation of the discovery and triage stages of sourcing does compress that gap, though the extent of the advantage depends on how many sellers adopt equivalent tools simultaneously, since arbitrage margins narrow as more participants identify the same opportunities.
Neither company disclosed commercial terms of the partnership, integration pricing, or whether the combined offering carries a bundled subscription cost. SellerAmp SAS is sold on a subscription basis; ArbiSource's pricing structure was not detailed in the announcement. The partnership does not appear to involve equity or a formal merger.
For sellers operating in the UK, the regulatory environment is stable but not frictionless. Amazon's own policies around gating, brand restrictions and Buy Box eligibility shift frequently and can invalidate sourcing decisions that appeared sound at the point of purchase. SellerAmp SAS already surfaces eligibility alerts, which suggests the integration has been designed with that risk in mind. Sellers scaling into six- or seven-figure revenues may also face VAT registration and import compliance obligations that software tools do not address directly.