Answer from a secure link
Open the link, answer, submit. No account needed.
Your customer sends the questionnaire by email. Answer the questions, save as you go and submit when you are ready.
For suppliers and value-chain partners
Answer your customer’s ESG questionnaire without creating an account.
When a listed customer asks for value-chain data through Sustano, you get a secure link. Answer, attach your evidence and submit. Suppliers never pay.
Why the requests are arriving
More customers are asking for your ESG data
Under SEBI’s BRSR Core rules, the top 250 listed companies may disclose ESG data for the partners that each make up 2% or more of their purchases or sales, on a voluntary basis from FY2025-26 (SEBI circular 2025/42; the rules in full). If you are a large supplier or customer of one, expect:
- Each customer asks for ESG data in its own format, on its own timeline.
- They want the bill or certificate behind a figure, not only the figure.
- Nobody wants another account and password for a once-a-year request.
Attach evidence once
Your evidence travels with your answer.
Attach the bill, certificate or log to the answer it supports. Your customer sees the proof next to the figure, so they have fewer questions to come back with.
Your own partner workspace
For customers you work with all year.
A customer can invite you to your own partner workspace. When they request specific data, you send it with its evidence, and they approve or reject what you send.
- Your customer can record emission factors specific to your company.
- A product carbon footprint you share can be used directly in their product footprint.
FAQ
Frequently asked questions
I submitted a wrong figure. What can I do?
Contact your customer. They can reopen the questionnaire so you can correct it, and their reviewer accepts or rejects each answer.
Can we use Sustano for our own reporting?
Yes. The software your customer uses can also handle your own BRSR and ESG reporting. Talk to us about your situation.
Received a questionnaire, or need to send one?
Tell us whether you are answering a customer or collecting from your own suppliers, and we will point you to the right place.