Turn Google Maps Listings Into a Verified B2B Contact List
Mailvantis searches Google Maps by industry and location, extracts the contact email from each business's own website, verifies it, and saves it ready for personalized outreach. The whole process runs automatically — no manual copying required.
Google Maps is where Nigerian businesses list themselves
Unlike LinkedIn or business directories that require paid access or have limited African coverage, Google Maps is where Nigerian businesses proactively list their company information — including their website, phone, address, and category. It is a live, self-updated database of businesses in every Nigerian city.
High coverage of local markets
Most established Nigerian businesses with a physical location are listed on Google Maps. Coverage is especially strong in Lagos, Abuja, Port Harcourt, and other urban centres.
Businesses list themselves
Unlike scraped databases, Maps listings are created and maintained by the business owners themselves. The information is intentionally public and kept up to date.
Search by industry and location
You can search for a specific industry category in a specific area — "accountants in Lekki" or "hotels in Abuja" — and get results for exactly that segment and location.
No paid database access needed
Google Maps is free to search. Mailvantis builds on top of this open data source so you don't need to subscribe to an expensive contact database that may not cover your target market anyway.
Exactly what Mailvantis pulls from each Maps listing
Here is what a completed lead record looks like after Mailvantis processes a Google Maps result.
Lead detail view — business name, extracted email, website, phone, address, and fit score
From Maps search to verified lead — step by step
- You enter a search query. Example: "printing companies in Ikeja, Lagos".
- Mailvantis queries Google Maps. It retrieves the top listings matching your query and location.
- For each listing with a website, Mailvantis visits it. It looks for the contact email on the homepage, contact page, or footer.
- The email is extracted and verified. A deliverability check confirms whether the address is likely to exist and accept mail. Addresses that fail are flagged or excluded.
- The lead is saved with a fit score. Mailvantis compares the business's profile to your service description and assigns HOT, WARM, or COLD.
- Your lead list is ready for outreach. Click on any lead to generate a personalized email and send it from your own Gmail or SMTP account.
Google Maps lead generation questions
How does Mailvantis get the email if it's not on Maps?
Google Maps listings usually include a website URL. Mailvantis visits that website and finds the contact email that the business has publicly listed — typically on a "Contact Us" page or in the footer. This is publicly available information that the business itself published.
What happens if a listing has no website?
If a Maps listing has no website URL, there is no website to visit for an email. Those leads are skipped for the email extraction step. You can still see the business name, phone, and address if the listing is otherwise complete.
How fresh is the data?
Mailvantis searches Maps live when you run a query — it doesn't pull from a pre-cached database. The results reflect what is currently listed on Google Maps at the time of your search. The extracted emails are from the business's current website at the time of extraction.
Does this work for cities outside Nigeria?
Yes. Mailvantis searches Google Maps globally. You type the location yourself, so you can target any city in any country where businesses are listed on Maps.
Is extracting public business emails legal?
Yes. Mailvantis only collects business contact information that the business itself has publicly published on their website. This is a standard B2B outreach practice. It does not access private data or personal consumer information.
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