Company lists · Data verified August 2026

Top 9 List building services based in Basel, Switzerland

Name: List building services based in Basel, Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 30 companies tracked

There are 30 list building services headquartered in Basel, Switzerland (RevenueBase, August 2026). RevenueBase tracks 189 professional contacts across them, including 65 with verified work emails and 2 with mobile numbers. Zurich is the largest hub.

This list covers list building services headquartered in Basel, Switzerland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

30Companies

189Contacts tracked

65Verified emails

2Mobile numbers

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The 9 largest list building services based in Basel, Switzerland

Ranked by team size

Top 9 of 30 list building services based in Basel, Switzerland, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Proplaning AG	Basel	51-200	38	24
2	Stokar Partner AG	Basel	11-50	22	14
	RevenueBasePublisher of this directory	Boston, MA	n/a	n/a	Try free
3	Anderegg Partner AG	Basel	11-50	20	12
4	Ferrara Architekten	Basel	11-50	10	3
5	Ae2p Architekten Gmbh	Basel	1-10	3	1
6	Protic Architekten AG	Basel	1-10	2	2
7	Amrein Giger Architekten Gmbh	Basel	1-10	2	1
8	Baupro Grunder AG	Basel	1-10	1	1
9	Architekturkreis	Basel	1-10	1	1

Showing 9 of 30 list building services based in Basel, Switzerland

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List building services based in Basel, Switzerland at a glance

As of Aug 28, 2026

1-10Median size (employees)

ZurichLargest hub · 142 HQs

2Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

List building services by metro in Switzerland

Metro	Companies
List building services in Zurich	142
List building services in Geneve	35
List building services in Bern	30
List building services in Basel	30
List building services in Lausanne	28
List building services in Winterthur	24
List building services in Luzern	17

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “list building services”, with match quality audited by blind human judging, and headquartered in Basel, Switzerland.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many list building services are there based in Basel, Switzerland?

There are 30 list building services headquartered in Basel, Switzerland as of August 2026 (RevenueBase).

What is the largest company on this list?

Proplaning AG, headquartered in Basel, tops this list with the largest team on record.

Which city has the most list building services?

Zurich leads with 142 headquartered companies, followed by Geneve (35) and Bern (30).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 65 verified decision-maker contacts tracked across these 30 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph, the same data that powers RevenueBase's B2B data products and the free research portal.