Automation

8 min

Enrich Company Data Using the SIREN Number

Explainer video

Step	Tool	Action
1	Webflow	Create the form with a SIREN field
2	Webflow	Add the Wized custom attributes
3	Wized	Connect the Webflow project
4	SIREN API	Fetch the data via /v3/unites_legales/
5	Wized	Create the On Change action + enrich the fields

In this tutorial, Sandro — co-founder of Gemeos Webflow agency — shows you how to enrich company data using a SIREN number

1. Build your page template in Webflow

Make sure you add a "Text Field" that lets you enter a SIREN number. I recommend collecting all the info in a form so you can easily send it to your CRM or another database when the prospect submits their details.

Of course, you can — and I recommend this — set fields to “display: none” so prospects don’t see them. Especially the enriched fields.

2. Add “custom attributes” to the elements you want to use in Wized

Make sure you use “wized” in Name, and feel free to choose whatever Value you want.

For example, I used:

sireninput
accountname
naf
address

3. Connect your Webflow account to Wized

Go to Wized and create a new project. Add your Webflow site URL (the "webflow.io" link) and add the custom code in your project footer.

4. Connect to the Siren API

Go to “App”
New App
Give it a name and select Rest API as the app type
Enter the base URL: “https://data.siren-api.fr/”

5. Fetch the data

Go to “Data in”
Select the app you just created
Enter the URL endpoint (/v3/unites_legales/) and add the input field corresponding to the SIREN number as a variable

Add your API key as a URL parameter

6. Create the action that retrieves the SIREN

Go to Action
Select the attribute of your SIREN input field in “Apply to”
Select “On change” in the “Configuration” tab settings and “Perform request” for the Action, then choose the Data in you configured just before for “Request”

7. Enrich your form fields based on the SIREN you entered

Go to Action
Select the attribute of the input field you want to fill in
Select “Set input value” in the “Configuration” tab settings and choose the value you want from the results
Repeat the same process for the other fields you want to enrich

Good to know

The SIREN API (data.siren-api.fr) is free, with a limited daily volume. For larger volumes, the official alternative is INSEE’s Sirene V3 API (api.insee.fr). It requires an account and an API key.

8. Conclusion

As you can see, it’s pretty simple to enrich company data using a SIREN number with the SIREN API + Wized.

Useful use cases?

Score your prospects based on different criteria like the NAF code, business area, or company founding year, and adjust your sales pressure accordingly
Increase the conversion rate of your qualification forms by using one field to enrich a whole set of data

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