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Notes for owners · Sales management

Getting on a company's approved vendor list: the documents to keep ready

The documents a supplier should keep ready to get on a company's approved vendor list, numbered and named, plus the maker's authorisation letters a distributor needs and how to get a brand onto the approved makes list.

The GullySales team · Updated 17 Oct 2026 · 5 min read

Editorial illustration for RFP and tender management
On this page
  1. Why files come back
  2. The core folder, numbered and named
  3. Distributors need the maker's letter too
  4. A vendor code is not an approved make
  5. Imagine a distributor in Visakhapatnam
  6. Portals, and buyers who need far less
  7. Start with the dates

A plant's purchase executive emails you a vendor registration form listing fourteen attachments. While you gather them, the requirement that started it all goes to a vendor already on the list. Getting on a company's approved vendor list is mostly a paperwork race. A ready folder wins it. Keep your identity, tax, bank, capability and declaration papers numbered and named. If you distribute other makers' products, add their authorisation letters. Then prepare for the two steps no folder covers: the buyer's list of approved makes, and the sample.

Why files come back

Inside the buyer, several desks read your file in turn: procurement, a vendor master team, finance and quality. Our note on getting on a vendor list without the file stalling follows it desk by desk. What sends a file back is often not a missing paper. It is a mismatch. The name on the cancelled cheque differs from the GST certificate. The works address on the form is not the one on the registration. A certificate lapsed last quarter. Each one returns the file to the end of the queue.

The core folder, numbered and named

Keep one PDF per document, each named the same way (YourCompany_02_GST.pdf), plus one combined PDF with an index on top. Write each certificate's validity date on the index.

  • 01 Company identity. Certificate of incorporation, partnership deed or proprietorship proof, the entity's PAN, and address proof for the registered office and the works if they differ.
  • 02 Tax. GST registration for every state you invoice from, with every place of business on it, and the Udyam certificate if you hold one.
  • 03 Bank proof. A cancelled cheque printed with the entity's name, or a recent letter from the bank on its letterhead.
  • 04 Capability. A short capability presentation, catalogue and datasheets, a machine or stock list, photographs of the works or godown, and any quality certificate with its validity date in view.
  • 05 Proof of supply. Two or three past purchase orders with prices blacked out, and references who have agreed to take a call.
  • 06 Financials. The last two or three years' statements or return acknowledgements. Large buyers ask; small ones rarely do.
  • 07 Declarations. Drafts of the code of conduct, non-disclosure and conflict of interest forms buyers ask you to sign. Read them once now, so signing does not stall at your end.

Put a vendor fact sheet above the index: legal name, GSTIN, PAN, bank account and IFSC, every address, and one named contact each for orders, accounts and quality. Fill every form from that sheet, never from memory.

Distributors need the maker's letter too

If you sell other makers' products, the buyer wants to know you are an authorised channel and not selling grey or duplicate stock. Keep a current authorisation letter from each brand you carry, on the maker's letterhead. It names your firm, the products and the territory. It carries a validity date. File each one as 08, put its date on the index, and ask the maker for the renewal before it lapses. Keep the maker's current datasheets and test certificates beside it, because quality asks for those, not your brochure.

A vendor code is not an approved make

This is where distributors of industrial and safety supplies lose the most time. A plant keeps a list of approved makes for many items: which brands of bearings, cutting discs, gloves or valves it will accept. A vendor code lets you quote. It does not let you quote a brand the list leaves out.

So ask purchase two questions early. Which items do you buy that our brands are already approved for? And which items are open to a new make? For the second kind, the maintenance or quality engineer decides, usually after a trial. Offer the datasheet, the test certificate, a short list of other plants using the product (named only with their permission) and a trial quantity. Then accept their pace. On safety items, the trial is the whole point.

For parts made to the buyer's own drawing, the sample stage is a first-article approval instead. Our note on presenting a first batch covers that pack.

Imagine a distributor in Visakhapatnam

Imagine a distributor of hand tools, abrasives and safety items in Visakhapatnam registering with a pharmaceutical plant at Parawada. The details are illustrative.

The papers went through, and the firm got its vendor code. Then the first enquiry came, for cutting and grinding discs, and its quotation was set aside. The plant's approved makes for abrasives did not include the brand it carried. When that brand was added after a trial, the next quotation stalled again. The authorisation letter in the folder had lapsed two months earlier. By the time it was renewed, the plant had given that quarter's abrasives order, worth roughly ₹4 lakh (an illustrative figure), to a vendor whose papers were current.

The owner made two changes. Every authorisation letter now sits on the index with its validity date, and the renewal request goes to the maker a month ahead. And at each new registration, the salesperson asks purchase for the approved makes on the items the firm hopes to supply, before quoting anything. Where a brand is missing, the trial is offered at the first meeting.

Portals, and buyers who need far less

Large companies and public sector units register vendors through their own portals, and many government buyers use GeM. Each portal has its own fields, formats and validity rules, so check its current rules before you start. With tender-led buyers, register before the tender is out.

At the other end, a small company buying once against a proforma invoice needs your GST certificate and bank details, nothing more. Fourteen attachments sent to a buyer who asked for two looks like you did not read the email.

Start with the dates

Write the validity date of every certificate and authorisation letter you hold on one page. Mark the ones that lapse before your next registration is likely, and renew those first. Industrial and equipment suppliers are among the trades on our e-commerce sales and marketing pages. To have the folder, the capability deck and the approved-make requests prepared with you, tell us what you need; capability presentations and RFP and tender management are the related services.

Questions

Questions owners ask.

Do I need ISO certification to get on an approved vendor list?
It depends on the buyer and the category. Some ask for it on critical parts and accept a quality plan for routine supplies. Ask procurement whether it is a must or a preference before you pay for a certification to satisfy one buyer.
Is it worth registering with a company that has no current requirement?
Only if someone in purchase has asked you to, or a requirement is expected soon. Registration on its own brings no orders, and an approved vendor who is never called is still a stranger. Spend the effort where a named buyer is waiting for your papers.
How do I list references without annoying my customers?
Ask each customer first, and give the contact who handles your orders day to day, not the owner. Tell them which company may call and roughly what will be asked. Two references who answer warmly beat six who are surprised by the call.

From the blog

More notes for owners.

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