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GST B2B Company Lookup Across Every Business Registry
GST B2B company lookup across registries: check a business’s GSTIN together with its CIN, Udyam, import-export code and food licence for a fuller picture.
GST Identification Number
27ABCDE1234F1Z0
- Legal nameSample Traders Pvt Ltd
- StateMaharashtra (27)
- RegistrationActive
- Phone+91 98XXX XXXXX
- Emailc****@example.com
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Reading time 4 min
Last reviewed October 2026
GST B2B company lookup gives you one view of a business: its tax registration. For an important supplier, customer or partner, that view is worth widening. Indian businesses typically hold several registrations, each kept by a different authority and each revealing something different: corporate identity and directors, small-enterprise status, import and export activity, food safety licensing. Checking them together, linked through the PAN, shows whether the business is consistent across records and gives you more trustworthy routes to its people.
This guide covers the main registries, what each contributes, how to link them, and what inconsistencies to watch for.
Quick answer
- The GSTIN confirms tax registration, status and places of business.
- The corporate identity number leads to directors, filings and the registered office.
- Udyam registration shows small-enterprise status and its payment protections.
- The import-export code confirms cross-border trading.
- A food licence is mandatory for food businesses and shows the licensed premises.
The PAN as the Common Thread
Most business registrations link back to the holder’s PAN. It sits inside the GSTIN, it is recorded in the company’s corporate filings, Udyam registration is tied to it, and the import-export code for most entities now matches it. Using the PAN, you can confirm that registrations under different names belong to the same business.
GSTIN: Tax Registration
The public GST search gives the legal and trade names, constitution, status, registration date, places of business, activities and filing history. It is the most frequently updated record and shows whether the business is actively trading.
CIN or LLPIN: Corporate Identity
For companies and LLPs, the corporate registry shows the identification number, incorporation date, status, registered office, filed email, and directors or designated partners. Annual filings add financial statements. A company marked as struck off or under closure should not be trading, whatever its GST status shows.
Need the contact behind a GSTIN?Get the sample format with verified business contact fields.
Udyam: Small-Enterprise Status
Micro, small and medium enterprises register on the Udyam portal and receive a Udyam number. It shows the enterprise’s classification and activity. For buyers, it matters because micro and small suppliers are protected by statutory payment limits and interest on delayed payments; for sellers, it supports access to schemes and credit.
IEC: Import and Export
An importer-exporter code from the directorate of foreign trade is needed for most import and export activity. A supplier claiming to export, or a buyer importing your goods, should hold one. The code’s details show the entity’s name and address as registered for foreign trade.
Food Licence: Food Businesses
Manufacturers, traders, distributors and caterers of food need registration or a licence from the food safety authority. The licence number appears on packaging and invoices and can be verified, along with the licensed premises and validity. For a food supplier, an expired licence is a serious warning.
Want to see real match quality?See the sample format for your own GST numbers.
Reading Inconsistencies
Small differences are normal: a trade name in one record and a legal name in another, or an older address in a registry that changes less often. Larger ones deserve questions: different PANs, a company struck off but GST active, an IEC in a different name, or a food licence for different premises. Ask the business to explain before relying on it.
Contacts Across Registries
Each registry gives you something useful for reaching people: directors’ names and a filed email from the corporate registry, the enterprise’s address from Udyam, licensed premises from the food authority. Combined with the GST places of business, these point to the right person and the right site, without needing anyone’s private number.
When to Do a Full Lookup
A full cross-registry check is worth doing for new suppliers above a spend threshold, distributors and franchisees, customers seeking credit, partners in joint bids, and any food or export supply chain. For small one-off purchases, the GST lookup alone is usually enough.
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Related guides
GST B2B Business Lookup for Platforms Onboarding Sellers: a related guide.
Find GST Company Mobile Number for Small Private Limited Companies: a related guide.
Find Supplier Contact by GSTIN While Sourcing New Manufacturers: a related guide.
Find GST Company Phone Number for Government Bodies and PSUs: a related guide.
Company Contact by GSTIN When a Company Is Registered in Many States: a related guide.
Frequently Asked Questions
What does a GST B2B company lookup show?
The business’s tax registration: legal and trade names, constitution, status, places of business and filing history.
Which other registries should I check?
The corporate registry for companies and LLPs, Udyam for enterprise status, the IEC for foreign trade, and the food licence for food businesses.
How do I link the records?
Through the PAN, which sits inside the GSTIN and is tied to most other business registrations.
Why does Udyam status matter?
Micro and small suppliers have statutory payment protections, so buyers should know a supplier’s status.
What inconsistencies are serious?
Different PANs, a struck-off company that is still GST active, or licences in another entity’s name.
When is a full cross-registry check worthwhile?
For significant suppliers, distributors, credit customers, bid partners and food or export supply chains.
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Disclaimer: GST To Phone Number is an independent data service. We are not affiliated with, endorsed by or connected to the Goods and Services Tax Network, the Central Board of Indirect Taxes and Customs, or any government department. GSTIN verification should always be confirmed against the official GST portal. Contact data is provided for legitimate business use and must be used in line with applicable telecom, privacy and data-protection rules.