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How do you build a sourced lead list without buying one?

Write down exactly which businesses qualify, pull them from a public listing such as Google Maps, then visit each business's own website for the details you need. Record where every value came from, mark what you could not find, and remove duplicates before anyone uses the list. The result is smaller than a bought list, but every row can be checked.

Local businesses are often thin in the big contact databases, while their own listings and websites are current. The work is in the checking, not in the collecting.

Updated Sep 28, 2026

How it works

  1. Define who qualifies

    Type of business, area, size signals (reviews, locations, a booking page) and the fields you need. Anything you cannot check from a public source should not be a requirement.

  2. Pull the listings

    Search a public directory, such as Google Maps through the Places API, by business type and neighborhood. Keep the listing ID with each row.

  3. Visit each business's own website

    Collect only what the business publishes about itself: its contact page, services, booking link. Record the page each value came from.

  4. Give every field a state

    Found (with its source), checked and not there, unknown (with the reason), or in conflict (two sources disagree, both kept). A blank with no state is a guess waiting to happen.

  5. Remove duplicates and past contacts

    The same business can answer two searches. Match on the listing ID or website, and check the list against everyone you have already contacted.

What it costs to run

Collecting from public listings costs API calls; buying from a data tool costs credits. The list below is list prices read today from Google and Apollo; tax and higher tiers are extra.

ItemList priceSource
Google Places API, Text Search ProFirst 5,000 calls a month free; then US$32 per 1,000 callsGoogle Maps Platform, core services pricing list (last updated 24 Sep 2026)Read on Sep 28, 2026
Google Places API, Place Details ProFirst 5,000 calls a month free; then US$17 per 1,000 callsGoogle Maps Platform, core services pricing list (last updated 24 Sep 2026)Read on Sep 28, 2026
Google Places API, Place Details EnterpriseFirst 1,000 calls a month free; then US$20 per 1,000 calls. The fields you request decide which tier is billedGoogle Maps Platform, core services pricing list (last updated 24 Sep 2026)Read on Sep 28, 2026
Apollo Free, for comparisonUS$0, 900 credits per seat per year granted monthly; records can be selected 25 at a timeApollo.io, Pricing PlansRead on Sep 28, 2026
Apollo Basic, for comparisonUS$49 per seat per month billed annually, 30,000 credits per seat per year; an email uses 1 credit, a phone number 8Apollo.io, Pricing PlansRead on Sep 28, 2026

Third-party list prices, read on the date shown. They are not Betterlane prices.

What we learned building it

From how Betterlane builds its own outreach lists from public sources, September 2026. Not client work; no contact data is shown here.

Start from the listing, then read the business's own site
Our lists come from Google Places by search and neighborhood, then each business's website. It gives the business's own published contact and listing details, which keeps any observation we make about them checkable.
Four states, not blanks
Every field in our research sample is found, checked, unknown or in conflict, each with where and when it was looked up. A site that did not load is marked unknown, with that reason.
One business, two searches
Med spas answered both our clinic search and our salon search. We now check that no business sits in two lists before anything goes out.
A published contact is not always a decision-maker
For spas inside hotels, the published contact reached a concierge or reservations desk, not the owner. We flagged them for review instead of treating them like any other row.
Check who has already heard from you
Before our own reply-speed test, every pick was checked against the people we had already messaged, and those were replaced before anything was sent.

When it is not worth it

  • If you sell to large companies with many decision-makers, a contact database will usually cover them better than public listings.
  • If you need thousands of rows this week, a sourced list will be slower than buying one.
  • If nobody will contact the list within a few weeks, it will go stale before it is used.

Questions

Is it allowed to contact businesses found this way?

Finding a public contact is not permission. Rules differ by country and channel, such as the LGPD in Brazil and CAN-SPAM for commercial email in the US. Check them before any outreach and always honor a request to stop.

Why not just buy a list?

You can. A sourced list is smaller but every value says where it came from, so you can check it and explain it.

What if the website has no contact?

The field is marked as checked and not found. It is not filled from a guess or a pattern.

Can it go straight into my CRM?

Yes, once the fields are mapped and the list is matched against records you already have, so nobody is created twice.

Want a sourced list of the businesses you actually sell to?

See the service: Prospect research and CRM enrichmentLet’s talk

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