Local.ch, search.ch, Google Maps or Zefix: which source should you use for Swiss leads?

There is no single public source that provides everything needed for reliable Swiss B2B prospecting. Local.ch and search.ch are useful for discovering businesses and public contact details. Google Maps is strongest for location-based searches. Zefix verifies the legal entity, registered office and business identification number.

Your starting point should follow your target. Google Maps and directories make sense for dental practices in Lausanne or restaurants in Lugano. Zefix matters more when you need registered corporations in Zug. A usable lead list will usually combine several sources and reconcile their records.

Four sources built for different jobs

These platforms are not interchangeable company databases. Each was created for a different purpose, so the available fields and reliability signals differ.

| Source | Best used for | Typical information | Main limitation | |---|---|---|---| | local.ch | Local businesses and contact details | Name, address, phone, website, category | Does not establish legal status by itself | | search.ch | Industry and location searches | Address, phone, category, website | Coverage and detail can vary | | Google Maps | Businesses serving a physical area | Location, hours, website, phone, reviews | Listings may include user-managed data | | Zefix | Official company verification | Legal name, seat, form, UID, status | Limited sales and contact information |

A Google Maps profile may tell you where a clinic operates and when it opens. It may not make the operator’s full legal name obvious. Zefix can identify that entity, but it will not normally tell you which public email address is best for a business enquiry.

When local.ch is the right starting point

Local.ch works well when you have an industry and location in mind: trustees in Lucerne, electricians in Winterthur or architecture firms in Fribourg. Listings commonly include phone numbers, addresses, websites and business categories.

Consider an agency in Lugano selling website services to restaurants. It could use local.ch to identify venues, then segment them according to whether they publish a functioning website. That creates a more relevant list than collecting every restaurant indiscriminately.

The results still need checks. One operator may appear in several categories, while a branch may look like an independent company. Details may also be incomplete or outdated. Switzerland’s telephone directory star is relevant to sales calls: it indicates that the subscriber does not want advertising calls and should be respected.

Local.ch is therefore a discovery source, not definitive proof of a company’s legal identity. Matching the name and address against a UID reduces ambiguity.

When search.ch adds useful coverage

Search.ch performs a similar role but may produce different categories and results. Use it when local.ch returns too few records, or when you want to compare websites, phone numbers and addresses across sources.

Industry terminology is a practical challenge in Switzerland. A contractor might be listed under building technology, heating systems or installations. Multilingual regions add another layer: searches in German, French and Italian do not always reveal the same set of businesses.

Check whether a result represents the registered office, a branch or merely an operating location. A company name alone is a weak deduplication key. Website domain, full address and UID are better signals for deciding whether two records represent the same entity.

Google Maps for local lead generation

Google Maps is particularly useful for companies serving a defined geographic area: hotels, garages, restaurants, medical practices, gyms, tradespeople and shops. A profile may show the location, opening hours, telephone number, website and stated category.

Reviews and photos add context, but do not justify unsupported sales assumptions. A low review count does not prove that a company needs marketing. A missing website, however, is an observable criterion for an agency offering web development.

Language affects coverage. To research the Swiss fiduciary sector, for example, try “Treuhand”, “fiduciaire” and “fiduciaria” in the relevant regions. Search municipalities around major cities as well; many firms operate outside the central postcode while serving the whole urban area.

Maps data has limitations. Profiles can be duplicated, marked closed incorrectly or edited by owners and users. Any collection or reuse must also comply with the platform’s terms. Copying large volumes without validation tends to produce a noisy list, even before compliance questions arise.

Zefix for official company and UID checks

Zefix is Switzerland’s central business name index, drawing on cantonal commercial register information. It helps verify the official legal name, registered seat, legal form, registration status and enterprise identification number, commonly called the UID.

This matters when a Maps profile uses a trading name. A business shown as “Alpine Build” might legally be operated by a GmbH or AG with a different registered name. Zefix also helps separate similarly named entities across cantons. See our guide to the Swiss commercial register for a closer look at this verification step.

Zefix is not a ready-made sales directory. It does not normally supply a verified marketing email, the most suitable contact person or meaningful indicators about a company’s digital presence. Official records need to be connected to operational sources.

A practical workflow: discover, verify and enrich

A dependable process separates discovery from legal verification and contact enrichment. This makes the origin and status of each field easier to understand.

1. Define the industry, canton or city and desired company type.
2. Discover businesses through local.ch, search.ch and Google Maps.
3. Standardise names, addresses, phone numbers and domains.
4. Verify the legal name, registered office and UID in Zefix.
5. Retrieve a publicly listed business email from the company website.
6. Remove duplicates using the UID, domain and full address.
7. Export only the fields needed for your CRM or campaign.

A construction business in Zug looking for subcontractors will prioritise trade and distance. An international agency targeting hotels in Valais may need location, website and language data. The same source is not equally valuable in both situations.

Swiss privacy and outreach considerations

Public availability is not a blanket permission to use data without limits. Switzerland’s revised Federal Act on Data Protection requires transparent, proportionate and secure handling of personal data. Pure company details and information linked to an identifiable employee should not be treated as identical categories.

Telephone outreach must account for Swiss unfair competition rules and the directory star indicating that advertising calls are not wanted. Email outreach should not be indiscriminate either. Use a relevant business reason, identify the sender clearly and provide an easy way to decline further messages. Seek tailored legal advice for campaigns involving sensitive data or uncertain consent requirements.

Which source should you choose?

Use local.ch or search.ch to discover businesses by category and municipality. Start with Google Maps when physical location and operating presence are central to your targeting. Use Zefix when you need to identify the legal entity and verify its UID. Combine them when accuracy matters.

The slow part is rarely the first search. It is comparing profiles, finding public emails, checking UIDs and removing duplicates. Swiss Lead Pro brings together data from these public sources, extracts available email addresses and supports CSV export. Explore Swiss B2B leads, check the FAQ, or start with three free searches per month on Swiss Lead Pro.