Finding brand wholesale suppliers is one of the biggest challenges Amazon sellers face. You can spend hours searching Google, only to end up with retail stores, marketplaces, and dead ends – not the authorized distributors and wholesalers you actually need.
Seller Assistant solves this with a connected two-tool workflow. Seller Spy monitors competitor storefronts and surfaces the brands worth pursuing. AI Supplier Finder then identifies verified manufacturers, authorized distributors, and wholesalers for any brand in seconds.
Together, they take you from spotting a competitor’s brand to having real supplier contacts – without leaving your sourcing workflow. Here’s exactly how it works.
Why Competitor Research and AI Supplier Search Belong in the Same Workflow
Competitor research tells you what successful Amazon sellers are sourcing, while supplier search shows you where to buy it. Separating these tasks often leads to wasted time, missed opportunities, and disconnected research. By turning competitor insights into supplier searches immediately, you can validate opportunities faster, build a stronger sourcing pipeline, and move from market intelligence to supplier outreach without interrupting your workflow.
Discover brands with proven demand
Brands that appear in competitor catalogs have already been validated by other Amazon sellers. Instead of searching for opportunities at random, you start with brands that are actively being sold in the marketplace.
Shorten the path from discovery to sourcing
When you find a promising brand during competitor research, searching for suppliers immediately helps you capitalize on the opportunity while it’s still relevant. This eliminates unnecessary steps and keeps your sourcing process moving.
Prioritize supplier outreach
Not every brand deserves the same level of attention. Competitor research helps you identify brands that multiple sellers carry, allowing you to focus your outreach on opportunities with stronger market validation.
Reduce manual research
Without an integrated workflow, sellers often copy brand names between tools, perform repeated searches, and organize findings manually. Connecting competitor research with supplier search streamlines the process and reduces repetitive work.
Build a stronger sourcing pipeline
Every promising brand you discover can become a potential supplier relationship. By combining competitor intelligence with supplier discovery, you create a steady pipeline of brands to research, suppliers to contact, and products to evaluate.
Validate opportunities before investing
Finding a supplier is only one step in the sourcing process. Starting with competitor research helps ensure you’re looking for suppliers of brands that already show signs of marketplace demand, reducing the risk of pursuing weak opportunities.
Respond to market changes faster
Competitor catalogs change constantly as sellers add new brands and products. Integrating supplier search into your competitor research workflow allows you to react quickly to emerging opportunities instead of discovering them after the market has become more competitive.
Create a connected sourcing workflow
The most efficient sourcing process doesn’t stop at discovering competitor brands. It continues with supplier discovery, brand validation, product analysis, and purchasing, allowing you to move from insight to action with fewer delays and better-informed decisions.
What Seller Assistant Tools Find Suppliers for Brands Competitors Already Sell
Discovering a promising brand through competitor research is only the first step. The real opportunity comes when you identify where to source that brand. Many Amazon sellers switch from competitor research to manual Google searches, spreadsheets, and scattered notes, slowing down the sourcing process and making it harder to manage supplier leads. Seller Assistant’s Seller Spy and AI Supplier Finder solve this by connecting competitor intelligence directly with supplier discovery.
Instead of treating competitor research and supplier search as separate tasks, you can move from discovering a brand in a competitor’s catalog to finding manufacturers, distributors, and wholesalers in just a few clicks. This creates a faster, more structured sourcing workflow and helps you act on new opportunities before they become widely known.
This workflow is powered by two Seller Assistant tools – Seller Spy and AI Supplier Finder.
Seller Spy
Seller Spy helps Amazon wholesale sellers, online arbitrage sellers, and dropshippers monitor competitors and discover new sourcing opportunities. It tracks competitor catalogs, brands, products, and marketplace activity, highlighting brands competitors recently added and brands that represent opportunities for expanding your own catalog.
AI Supplier Finder
AI Supplier Finder helps sellers locate manufacturers, authorized distributors, and wholesalers connected to a brand. It automatically filters out marketplaces and retail stores, prioritizes B2B suppliers, and organizes results by supplier type and match confidence, making it easier to identify legitimate wholesale sources.
How the tools work together
When you identify a promising brand in the Opportunities section on Seller Spy’s Overview dashboard, simply click the Find supplier icon next to the brand. Seller Spy automatically launches AI Supplier Finder with the brand prefilled, allowing you to start searching for suppliers immediately without manually entering the brand name.
How supplier discovery from Seller Spy fits into your workflow
Supplier discovery is most effective when it’s integrated with competitor research. After identifying promising brands in Seller Spy, you can immediately search for suppliers, validate the brand in Brand Analyzer, evaluate products in Price List Analyzer, and continue through the rest of your sourcing workflow. Keeping these stages connected reduces manual work, speeds up supplier outreach, and helps you turn competitor insights into profitable sourcing opportunities more efficiently.
What Is Seller Spy?
Seller Assistant’s Seller Spy is a competitor monitoring tool that helps Amazon sellers discover sourcing opportunities by tracking the brands, products, and catalog activity of other sellers. Instead of manually reviewing Amazon storefronts, the tool continuously monitors competitor catalogs and highlights changes that can reveal new products to source, emerging brands, and market trends.
Seller Spy helps Amazon wholesale sellers, online arbitrage sellers, and dropshippers turn competitor intelligence into sourcing opportunities. By identifying brands your competitors sell but you don’t, it creates a direct path from competitor research to supplier discovery, helping you build a more efficient sourcing workflow.
What you can do with Seller Spy
Seller Spy helps sellers organize competitor research, identify sourcing opportunities, and prioritize the brands worth pursuing.
- Monitor competitor catalogs
Track the products and brands competitors currently sell, along with additions, removals, pricing changes, and other catalog updates over time.
- Discover sourcing opportunities
Identify brands your competitors carry that aren’t yet in your catalog, making it easier to uncover new wholesale opportunities.
- Analyze competitor activity
Review competitor growth, marketplace activity, catalog size, seller ratings, and recent changes to understand how successful sellers expand their businesses.
- Identify product and brand gaps
Compare competitor assortments with your own catalog to see which brands and products you’re missing and where you can expand your inventory.
- Spot market trends
Monitor the most active sellers, trending brands, and recent catalog changes across multiple competitors to identify emerging sourcing opportunities.
- Continue your sourcing workflow
Launch Brand Analyzer to evaluate promising brands or click Find supplier to open AI Supplier Finder and begin searching for manufacturers, distributors, and wholesalers connected to those brands.
How Seller Spy supports connected sourcing
Seller Spy makes competitor research part of a connected sourcing workflow. Instead of manually reviewing storefronts, copying brand names, and performing separate supplier searches, sellers can discover opportunities and continue researching them within the same platform.
After identifying a promising brand in the Opportunities widget on the Overview dashboard, click the Find supplier icon to launch AI Supplier Finder with the brand prefilled. You can also open Brand Analyzer to evaluate demand, competition, and resale potential before contacting suppliers. From there, promising products can be analyzed further with Price List Analyzer, creating a seamless workflow from competitor intelligence to supplier discovery, product validation, and purchasing decisions.
What Is AI Supplier Finder?
AI Supplier Finder is Seller Assistant’s supplier discovery tool that helps Amazon sellers find manufacturers, authorized distributors, wholesalers, and other B2B suppliers for brands they want to source. Instead of manually searching Google and sorting through retailers, marketplaces, and unrelated websites, sellers receive structured supplier results focused on wholesale sourcing opportunities.
When used with Seller Assistant’s Seller Spy, AI Supplier Finder transforms competitor research into supplier discovery. After identifying a promising brand in Seller Spy, sellers can launch AI Supplier Finder in one click to search for legitimate supply sources without leaving their sourcing workflow.
What you can do with AI Supplier Finder
AI Supplier Finder helps Amazon wholesale sellers, online arbitrage sellers, and dropshippers move from discovering competitor brands to finding companies that supply them.
- Find suppliers for competitor brands
Launch AI Supplier Finder directly from the Opportunities widget in Seller Spy to search for manufacturers, distributors, wholesalers, and alternative suppliers connected to the selected brand.
- Understand supplier relationships
See whether a company is a manufacturer, authorized distributor, wholesaler, or alternative supplier to determine the most appropriate sourcing strategy.
- Prioritize outreach
Supplier results include match confidence levels, helping you identify which companies are most closely associated with the brand and should be contacted first.
- Eliminate irrelevant search results
AI Supplier Finder automatically excludes Amazon, eBay, Shopify stores, and other consumer-facing marketplaces, allowing you to focus on businesses that support wholesale purchasing.
- Review supplier information
Access supplier websites and available business details to evaluate potential partners before reaching out or opening a wholesale account.
- Build a qualified supplier list
Save supplier opportunities discovered through competitor research and use them as the basis for future outreach and supplier relationship management.
How AI Supplier Finder fits into the Seller Spy workflow
AI Supplier Finder turns competitor intelligence into actionable sourcing opportunities. Instead of copying brand names from Amazon storefronts and starting a new search from scratch, you can launch supplier discovery directly from the Opportunities widget in Seller Spy.
Clicking the Find supplier icon automatically opens AI Supplier Finder with the selected brand prefilled. From there, you can review supplier matches, identify manufacturers, distributors, and wholesalers, and begin supplier outreach immediately.
AI Supplier Finder also integrates with other Seller Assistant tools, including Brand Analyzer, Price List Analyzer, Product Database, Suppliers Database, and Purchase Orders Module. This creates a connected sourcing workflow where competitor research, brand validation, supplier discovery, product analysis, and purchasing remain organized within a single platform.
How to Find Brand Suppliers from Seller Spy
The workflow starts in Seller Spy, where you monitor competitors and discover brands they recently added to their catalogs. Instead of manually reviewing Amazon storefronts and copying brand names into search engines, Seller Spy highlights sourcing opportunities in one centralized workspace, making it easy to identify brands worth researching.
When you spot a promising brand in the Opportunities widget on the Overview dashboard, simply click the Find supplier icon next to it. This automatically launches AI Supplier Finder with the selected brand prefilled, eliminating the need to manually enter the brand name or switch between tools.
AI Supplier Finder then generates a structured list of manufacturers, authorized distributors, wholesalers, and alternative suppliers associated with the brand. Sellers can review supplier types, match confidence levels, business websites, and available contact information to identify the best suppliers for wholesale outreach.
This connected workflow removes the need to alternate between competitor research, Google searches, and spreadsheets. Instead, Amazon wholesale sellers, online arbitrage sellers, and dropshippers can move directly from discovering a competitor’s brand to finding legitimate supply sources, making supplier research faster, more organized, and easier to scale.
How to Find Brand Suppliers from Seller Spy – Step By Step
Step 1. Open Seller Spy
Log in to Seller Assistant and open Seller Spy from the Tools section.
This is where you monitor competitors, review market activity, and find brands your competitors sell but you don’t.
Step 2. Go to the Overview dashboard
Open the Overview tab in Seller Spy.
This dashboard shows market-level competitor activity, including tracked sellers, active sellers, new brands, products added, Activity, Most Active, Hot Brands, and Opportunities.
Step 3. Find the Opportunities widget
Look for the Opportunities widget on the Overview dashboard.
This widget shows brands your competitors carry that are not yet in your catalog, making it a strong starting point for supplier discovery.
Step 4. Choose a promising brand
Review the brands listed in Opportunities and check how many competitors carry the brand and how many products are available.
Brands carried by several competitors may be worth researching because they already show reseller activity on Amazon.
Step 5. Click the Find supplier icon
Click the Find supplier icon next to the selected brand.
Seller Spy launches AI Supplier Finder with the brand prefilled, so you don’t need to copy the brand name or start a manual search.
Step 6. Review supplier results
Check the supplier list in AI Supplier Finder, including manufacturers, authorized distributors, wholesalers, and alternative suppliers.
Use supplier type and match confidence to prioritize which companies to contact first.
Step 7. Save suppliers for outreach
Click Add supplier to save a new supplier profile in Suppliers Database or Open supplier if the supplier already exists in your account.
FAQ
How many competitors should I track in Seller Spy?
There’s no single ideal number because it depends on your sourcing strategy and subscription plan. A smaller group of carefully selected competitors often provides more actionable insights than tracking dozens of unrelated sellers.
Should I contact the first supplier AI Supplier Finder recommends?
Not necessarily. It’s a good practice to compare multiple suppliers, review their product range, minimum order requirements, shipping terms, and account requirements before deciding which one best fits your business.
Can I use competitor brands to discover additional sourcing opportunities?
Yes. Once you identify a promising brand, explore the supplier’s catalog to see what other brands they distribute. Many wholesale suppliers carry dozens or even hundreds of brands, allowing you to uncover opportunities beyond the one that led you to them.
What should I do after finding a supplier?
Before placing an order, verify that the products meet your sourcing criteria by checking profitability, competition, selling eligibility, and Amazon restrictions. You should also confirm the supplier can provide invoices that satisfy Amazon’s requirements for wholesale sourcing.
Can I use this workflow if I already have wholesale suppliers?
Absolutely. Competitor research can help you discover brands your existing suppliers already carry but that you haven’t sourced yet. This allows you to expand your catalog without necessarily opening new wholesale accounts.
Final Thoughts
Finding a promising brand is only valuable if you can turn it into a real sourcing opportunity. By combining Seller Assistant’s Seller Spy with AI Supplier Finder, you can move directly from competitor research to supplier discovery without wasting time on manual searches or disconnected workflows.
Instead of guessing which brands to source or where to find them, you start with brands already selling in competitor catalogs, identify legitimate manufacturers, distributors, and wholesalers in a few clicks, and continue your sourcing workflow with Brand Analyzer and Price List Analyzer. Whether you’re an Amazon wholesale seller, online arbitrage seller, or dropshipper, this connected approach helps you discover opportunities faster, build stronger supplier relationships, and grow your catalog with greater confidence.
Seller Assistant automates and connects every stage of your Amazon wholesale and arbitrage workflow. It brings together in one platform: workflow management tools – Purchase Orders Module, Suppliers Database, Product Database, Warehouses Database, FBA Shipments, bulk research & sourcing tools – Price List Analyzer, Bulk Restriction Checker, AI Supplier Finder, Brand Analyzer, Seller Spy, Chrome extensions – Seller Assistant Browser Extension, IP-Alert Extension, and built-in VPN by Seller Assistant, and integrations & team access features – seamless API connectivity, integrations with Zapier, Airtable, and Make, and Virtual Assistant Accounts.
