A Google Maps business-data project needs three separate decisions: which businesses to research, which fields are useful, and how the chosen source permits those fields to be used. Listing discovery, company-website enrichment, and a reusable delivery are related tasks, but they are not interchangeable.
Begin with the business question. A territory review might need individual locations. A supplier's prospect list might need one row per company and evidence of a particular service. Those requests should not produce the same dataset.
Separate listing details from website research
Google's Places field reference describes available API fields, including business identity, location, website, and phone fields. Availability depends on the selected request and source. It does not imply that every field exists for every business or may be stored indefinitely.
For planning, distinguish these groups:
| Information | Research question | What to establish before delivery |
|---|---|---|
| Business identity | Which business or location is this? | Source reference and duplicate rule |
| Category and location | Does it fit the requested territory and type? | Search boundaries and category interpretation |
| Website and public phone | Is the detail available and associated with this business? | Provenance and missing-value handling |
| Required service | Does the company actually offer what we need? | Supporting company-website page |
| Public business email | Does the company's own site publish one? | Separate research and its source page |
| Freshness | When was each finding checked? | Observation timestamps and refresh policy |
A company website may describe a service more precisely than a broad listing category. Preserve that supporting URL rather than turning the category alone into a qualification result. A listing is also not a guaranteed source of business email addresses.
Define coverage as a method, not a promise of completeness
“Every business in a city” sounds precise but leaves several questions unanswered. Which categories count? Are service-area businesses included? Does a business just outside the city boundary qualify if it serves that city? Should a company with several branches appear once or several times?
Write those rules down. Overlapping category and location searches can discover the same business several times, so define how records are matched. Google's Place ID guidance explains that place identifiers can change and that a location can have multiple IDs. Do not treat an identifier as a permanent guarantee of one-company-one-record.
For example, a hypothetical agency researching independent plumbers could define a set of counties, exclude franchises, and keep one company record with separate location records. Website review would then establish whether each candidate offers the service the agency needs. This is an example scope, not a claim of measured coverage.
Review access, storage, and attribution before choosing the output
Google's Places API policies include caching, storage, display, and attribution requirements, with specified exceptions. Being able to request a field through an API does not establish permission to export it into an unrestricted CRM file.
Agree the intended use and delivery route before building. Depending on the project, a permitted API workflow, licensed business-data source, or separately researched company website may be appropriate. Record which source supports each delivered field. If a requested export is incompatible with the source requirements, revise the source or output rather than assuming the sample format grants permission.
Our Maps business-data service starts with that scope review. We agree the output structure and supported fields around your project’s intended use.
Keep discovery and qualification as distinct stages
A useful handoff can show candidate status, qualification, evidence, and review notes separately. A business appearing in a result does not demonstrate purchase intent, fit with your offer, or permission to contact it.
Consider a hypothetical contractor list. A candidate may match the area and category, but its website may show only equipment sales when your brief requires installation services. That candidate belongs in an excluded or review group, with the reason retained. If the website is unavailable, the appropriate result is unknown rather than an unsupported yes or no.
For a step-by-step process, see building a business prospect list from directories. If the qualification rules are the main challenge, consider custom lead research rather than treating the project as a simple listing export.
Send a brief with the intended use
Include your business categories, geography, exclusions, company-versus-location preference, desired fields, approximate volume, refresh needs, and where the records will be used. Add examples of businesses that should and should not qualify.
Contact Us to discuss collection, enrichment, and delivery requirements.
