To answer the supplier questionnaire sent to you by your client, you will need to fill in your company's identification number to create your Supplier account.
Please find the list of all available identification numbers on Greenly.
CANADA, INDIA, NEW ZEALAND, AUSTRALIA, MALDIVES,
GST (Goods and Services Tax): Made of different formats for each country, and can include letters and numbers
CHINA
LIC CN (Business license in China also called Unified Social Credit Code): Made of 18 digits
More info here: How to find a Chinese company registration number
EUROPEAN UNION
VAT (Value-Added Tax identification number): Every country in Europe has its own format but it always contains the prefix of the country in 2 letters (FR for France) and then 7 to 11 digits.
FRANCE
SIREN: 9 digits(can be the same for multiple companies that are part of the same structure).
More info here: https://www.economie.gouv.fr
SIRET: 14 digits (made of 9-digit SIREN + 5-digit NIC)
More info here: insee.fr
INTERNATIONAL
DUNS (Data Universal Numbering System): standard business identifier made of 9 digits
QUEBEC
QST ( Québec Sales Tax): Made of 16 characters long and consists of the following format:
Characters 1 - 10 are numeric,
Characters 11 and 12 are the letters ‘TQ’,
Characters 13 - 16 are numeric and are commonly ‘0001’.
SINGAPORE
UEN (Unique Entity Number for specific types of entities): the format depends on the year, you can check in the links
More info here: What is an UEN and here Everything you need to know about UEN
UK
CRN (Company Registration Number): Made of an 8-character code with either 8 digits or 2 letters + 6 digits.
USA
EIN: (Employer Identification Number): Made of 9 digits with the following format "XX-XXXXXXX"
More info here: https://en.wikipedia.org/wiki/Employer_Identification_Number