What is the best business list finder tool?

ContactEra combines Google Maps extraction with automatic email enrichment and legal data (company registration, director, headcount). It's the only tool that extracts in real time — no static database with unknown update dates.

Is it legal to use business lists for cold email prospecting?

Yes, under GDPR's legitimate interest (Article 6.1.f) for B2B prospecting to professional email addresses. You must include an unsubscribe option and ensure the message is relevant to the recipient's business activity.

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Guide12 min read

Business List Finder: Get B2B Contacts at Scale in 2026

Q: Where can I get a free list of businesses?

Google Maps is the best free source for business contact data (phone, website). For company registration data, the French INSEE Sirene database is free. Neither source provides email addresses directly — for emails you need an enrichment tool like ContactEra.

Q: How do I get business emails in bulk?

The most efficient method: use ContactEra to extract businesses from Google Maps by industry and city, then automatically enrich with emails by visiting each company website. Average detection rate: 82%. No subscription required.

Finding a list of businesses isn't the problem — there are dozens of sources. The real challenge is getting a list that's actually useful: with emails, phone numbers, filtered by industry and location, and most importantly up to date.

This guide covers every available source in 2026, their strengths and limitations, so you can pick the right one for your needs.

4.2M

businesses on Google Maps (US alone)

82%

average email detection rate

6,500+

results per city with ContactEra

50+

data columns exported

Google Maps: the best real-time business source

Google Maps is the world's largest business database, updated continuously by the businesses themselves. Every Google Business Profile contains rich, verified data: name, address, phone, website, hours, photos, reviews.

The key advantage: coverage. Whether you want restaurants in New York, plumbers in London, or dental practices in Berlin — Google Maps covers every market with the same level of detail.

What Google Maps doesn't give you directly: email addresses. For those, you need to visit each company's website. That's exactly what ContactEra automates.

Best sources for business lists in 2026

1. Google Maps Free

Fresh contact data (phone, website, rating). Limited to ~100 results per search without a scraping tool. Best source for local businesses.

2. LinkedIn Sales Navigator Paid

Excellent for enterprise accounts and individual decision-makers. Poor coverage for local SMBs (restaurants, tradespeople, retailers) without a LinkedIn presence.

3. Apollo.io / ZoomInfo Paid

Large pre-indexed databases. Strong for tech companies and enterprises. Data can be 6–18 months old. Expensive subscriptions ($400–$1,200/month).

4. Yellow Pages / Local Directories Free / Paid

Good for basic contact info. Rarely include email. Data is often outdated. Bulk export requires paid plans.

5. Real-time Google Maps extraction 200 free credits

The most flexible method. You define the industry, city and area — ContactEra extracts and enriches in real time. Fresh data, no static database with an unknown update date.

How to filter a business list by industry

Google Maps uses its own categories ("Real estate agency", "Restaurant", "Plumber"...). The advantage: contact data is included. The limitation: the 100-result cap per search without GPS grid scraping. ContactEra solves this by dividing the search area into sub-zones, reaching 6,500+ results per city.

What to check before buying a business list

Extraction date — a 2-year-old list has 30%+ email bounce rate
Collection method — real-time extracted data (Google Maps) or a static database being resold?
Email coverage rate — how many contacts actually have an email?
Deduplication — are emails unique or are there duplicates?
GDPR compliance — was the data collected legally?

💡 Simple rule: always prefer a list extracted recently from Google Maps over a "ready-to-use" file with no visible extraction date. Data freshness directly impacts your email deliverability rate.

Ready-to-use B2B files from ContactEra

If you don't want to configure an extraction tool, ContactEra offers pre-built B2B prospecting files by industry:

Real estate agencies (France) — 48,912 businesses, 12,220 unique emails
Bakeries / Patisseries (France) — 35,516 businesses, 3,518 unique emails
More sectors coming (restaurants, hair salons, plumbers, garages...)

Available per region or for the full country, one-time purchase with no subscription. CSV or Excel format, compatible with all CRMs.

FAQ

Where can I get a free list of businesses?

Google Maps is the best free source for fresh contact data. ContactEra offers 200 free credits to extract and enrich businesses from Google Maps with emails and phone numbers.

How do I get business emails in bulk?

Use ContactEra: search by industry and city, extract all matching businesses from Google Maps, then enrich the entire list with emails in one click. Average rate: 82% of businesses with a website have a detectable email.

Is it legal to use business lists for cold emailing?

Yes, under GDPR's legitimate interest for B2B prospecting. You must target professional emails, include an unsubscribe link and ensure the message is relevant to the recipient's business.

Build your business list with emails

200 free credits. Fresh Google Maps data. No subscription.

Try ContactEra for free