SIRET-Enriched B2B Prospecting Files (2026)

In B2B prospecting in France, a SIRET-enriched prospecting file makes all the difference. With the SIRET number, you're no longer contacting a "restaurant in Lyon" — you're contacting "Mr. Martin, manager of La Belle Époque, SARL founded in 2018, APE code 56.10A". This level of personalization radically changes your response rates.

The problem: Google Maps is the best source of local businesses, but contains no SIRET data. And the INSEE SIRET database has no phone numbers, reviews, or websites. Until now, cross-referencing these two sources required massive manual effort. IBLead does it automatically.

What does SIRET add to your prospecting?

The SIRET number is far more than an administrative identifier. It's the key to a set of data points that transform a basic contact file into a surgical prospecting tool.

Data accessible through SIRET

Data point	Source	Prospecting use
Manager name	Sirene / INPI	Personalization ("Dear Mr. Dupont")
SIRET / SIREN	INSEE	Unique ID, legal verification
APE code (NAF)	INSEE	Precise industry targeting
Legal form	INSEE	Filter by SAS, SARL, sole proprietor, etc.
Date of creation	INSEE	Target new businesses (or established ones)
Registered address	INSEE	Verify actual location
Status (active/closed)	INSEE	Avoid contacting closed businesses

Concrete impact on your campaigns

An email starting with "Dear Mr. Dupont, manager of La Belle Époque" gets an open rate 2 to 3 times higher than a generic "Hello". SIRET isn't just for administration — it's a sales personalization lever.

The APE code also enables ultra-precise targeting. Instead of prospecting "restaurants", you can specifically target 56.10A (traditional dining) vs 56.10B (cafeterias) vs 56.10C (fast food). Three different businesses, three different messages.

And the creation date lets you segment: a 6-month-old business doesn't have the same needs as a 20-year-old one. A POS system supplier targets young businesses; an accountant targets growing ones.

The problem: Google Maps doesn't have SIRET data

Google Maps is the most comprehensive source of local businesses in France. Every shop, tradesperson, restaurant, practice — nearly all of them are listed, with phone numbers, addresses, websites, hours, and customer reviews.

But Google Maps contains zero French administrative data. No SIRET, no APE code, no manager name, no legal form. Google is an American company that doesn't deal with the French business registry.

On the other side, the INSEE Sirene database contains every SIRET in France — but no commercial phone numbers, no customer reviews, no websites, and addresses that don't always match reality (registered office vs. operating address).

The manual matching nightmare

In theory, you just cross-reference the two databases. In practice, it's a nightmare:

Names don't match: "Le Petit Bistrot" on Google Maps vs "SAS DUPONT RESTAURATION" in Sirene
Addresses differ: "12 rue de la Paix" on Google vs "12 r. de la Paix, 75002 PARIS" in Sirene
Duplicates: a company can have multiple establishments with different SIRET numbers
Closed businesses: present in Sirene but not on Google Maps, or vice versa

An experienced data analyst needs several days to manually cross-reference a few thousand businesses, with a 10-20% error rate. At the scale of all of France, it's simply impossible to do manually.

How IBLead matches Google Maps and the Sirene database automatically

IBLead has developed an automatic matching algorithm that cross-references every Google Maps listing with the INSEE Sirene database. Here's how it works.

Step 1: Fuzzy matching on name and address

The algorithm compares the Google Maps business name with Sirene registered names using fuzzy matching (approximate matching). "Le Petit Bistrot" will be correctly matched to "SAS LE PETIT BISTROT" despite the different wording.

In parallel, addresses are normalized and compared. The final score combines both: 65% on name, 35% on address. This ratio reflects the fact that the name is more discriminating, while the address resolves homonyms.

Step 2: APE code bonus

When the Sirene company's APE code matches the Google Maps category (thanks to a mapping of 2,438 Google categories to 548 NAF codes), the score gets a significant bonus. A "restaurant" on Google Maps matching a 56.10A company is much more likely to be the right result.

Step 3: AI verification

When two Sirene candidates get close scores (gap under 5 points), an AI model analyzes the context to decide. If a SIRET is also found on the company's website, the AI compares it with the Sirene candidate and determines which is correct.

The result

This process runs continuously across all French Google Maps listings. The correct matching rate exceeds 95% for high-score matches. Ambiguous cases are flagged rather than forced, to guarantee data quality.

To learn more about finding a SIRET from Google Maps, check our dedicated SIRET guide.

Real-world use case: targeting restaurants in Lyon without a website

Let's take a real example. You're a web agency in Lyon and want to prospect restaurants that don't have a website yet.

Without IBLead (traditional method)

Search "restaurant Lyon" on Google Maps — 120 results maximum out of 4,000+
Check one by one which ones don't have a website
Look up each SIRET on societe.com or pappers.fr
Find the manager's name to personalize the email
Result: 3 to 5 hours of work for 50-80 contacts, many incomplete

With IBLead

Filter: category = "Restaurant", city = "Lyon", website = empty
Export the SIRET-enriched file
Result: 2 minutes for 800+ contacts with manager name, SIRET, APE code, phone, address

The personalized sales approach

Thanks to the enriched file, your email becomes:

"Dear Mr. Martin,
I noticed your restaurant La Belle Époque at 15 rue Mercière in Lyon doesn't have a website yet. With your 4.3 stars and 230 Google Maps reviews, you have an excellent online reputation.
We help Lyon restaurants convert this Google visibility into direct bookings..."

This level of personalization is impossible without the Google Maps + Sirene cross-reference. You know the manager's name, exact address, reviews, and that the business is active (thanks to the SIRET status).

To understand why Google Maps outperforms LinkedIn for this type of local prospecting, read our Google Maps vs LinkedIn comparison.

IBLead: the only tool offering this automatic matching

No competitor offers SIRET enrichment on Google Maps data. Here's why:

Tool	Google Maps data	SIRET	Manager name	APE code
IBLead	Yes (exhaustive)	Yes	Yes	Yes
Scrap.io	Yes	No	No	No
PhantomBuster	Yes (120 max)	No	No	No
Outscraper	Yes	No	No	No
Bright Data	Yes (120 max)	No	No	No
Societe.com	No	Yes	Yes	Yes
Pappers.fr	No	Yes	Yes	Yes

Google Maps scraping tools only do scraping — they don't have a Sirene database. French business databases (Societe.com, Pappers) don't have Google Maps data (reviews, commercial phone, website, hours). Only IBLead combines both.

What this means for you

With other tools, you get a raw file that needs manual enrichment. With IBLead, you export a ready-to-use file with:

Google Maps data: business name, address, phone, website, reviews, rating, hours
Sirene data: SIRET, SIREN, manager name, APE code, legal form, creation date
Web enrichment: emails, contact pages, social media, technologies used

All with subscription plans from $35/month — cheaper than Scrap.io ($49/month minimum).

How to build your SIRET-enriched prospecting file

Here's the step-by-step process:

1. Define your target

Before creating your file, specify your criteria:

Industry: which Google Maps category? (restaurant, plumber, accounting firm...)
Geographic area: city, department, region?
Qualification filters: with or without website? Minimum rating? Number of reviews?
Legal form: are you targeting SARLs? Sole proprietors?

2. Search in IBLead

Enter your category and area. Unlike Google Maps which is limited to 120 results, IBLead uses a geographic grid system (quadtree) to index every single listing in an area.

3. Filter and qualify

Use filters to refine:

Businesses without a website — prospects for web agencies
Rating below 4 stars — prospects for reputation management agencies
Businesses created less than 2 years ago — prospects for accountants, insurers
Specific APE code — fine-grained industry targeting

4. Export your enriched file

The export contains all columns: Google Maps data + SIRET + web enrichment. Import directly into your CRM or email tool.

Conclusion: SIRET, the secret weapon of local B2B prospecting

A SIRET-enriched prospecting file isn't a luxury — it's what separates an ignored email campaign from one that generates meetings. The manager's name, APE code, legal form, creation date: each data point is a personalization lever that increases your chances of getting a response.

Google Maps provides the most comprehensive directory of local businesses in France. The INSEE Sirene database provides the administrative data that makes personalization possible. But neither source is complete on its own. IBLead is the only tool that automatically cross-references both through an intelligent matching algorithm — combining commercial data with legal identification in a single, export-ready file.

For sales teams, agencies, and freelancers prospecting local businesses in France, this is a major competitive advantage. While your competitors send generic "Dear Sir/Madam" emails, you address business owners by name, reference their company details, and demonstrate that you've done your research. And with plans starting at $35/month, it's also the most affordable solution on the market.

Build your SIRET-enriched prospecting file now