Google Maps B2B prospecting: from a search to a reviewed lead list

1. Define your segment before searching

Start with three decisions: the service you sell, the type of business that could use it and where that business operates. ‘Dental clinics in Medellín’ is easier to assess than ‘companies in Colombia’. Add a condition you can check, such as having a business website or advertising appointments by phone.

If you sell appointment automation, look for evidence about the booking process. A high review count does not prove that a business needs your service or has the budget for it. Use signals to prioritize research, not to invent a need.

• Segment: business category, city and service area.
• Fit criterion: a process your offer can help improve.
• Exclusions: existing customers, duplicates and do-not-contact records.
• Initial limit: a small sample you can review before expanding the search.

2. Collect the listing and check the business website

Connect your Apify account in Prospectario to search Google Maps. Listings may include a name, category, address, phone, website and other published details. Some fields will be missing, and published information can be out of date.

Next, research the business website. Check that the domain belongs to the right company, identify its services and review its published contact details. Prospectario gathers website contacts with their source page. Keep that source so you can check a record before using it. Do not invent an email address when the website does not publish one.

3. Qualify with criteria you can check

Use AI columns with your OpenRouter account to summarize services or classify a business from its website. Give the model a narrow instruction: ‘State whether the website mentions online booking and quote the supporting text; if there is no evidence, answer not found’. Review the output against the original page.

Keep observations separate from a sales hypothesis. ‘The website lists a phone number for appointments’ is verifiable; ‘they lose ten sales a day’ would be an assumption. AI can help organize information, but you still need to review accuracy and decide whether the company fits your offer.

4. Verify contacts and prepare the handoff

Use Reoon to check the emails you found. Separate valid, risky, invalid and unknown results before exporting. A valid email does not prove interest, permission to receive a message or guaranteed delivery. Also check your do-not-contact records.

After reviewing the list, export a CSV or push leads and their variables to Instantly. Prospectario prepares and hands off the data; sending happens in your email tool. Review sample rows, column mapping and the destination campaign before processing the whole list.

5. Measure list quality, not just list size

For each segment, record how many businesses you found, how many have enough information, how many fit your offer and how many have a usable contact. Then track relevant replies, conversations and sales in your sales tools. Keep those outcomes separate from search counts: more businesses found does not mean more customers won.

Compare provider costs with the prospects that actually pass your review. Start with a sample and expand when your selection criteria are useful. The Prospectario plan costs USD 29 per month and includes USD 15 in monthly credits that do not roll over. External subscriptions, such as Instantly, are purchased separately.