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company directory

Erich Heggendorn AG 

Therwil · Since 1974

Erich Heggendorn AG is a fiduciary firm providing accounting and tax services, including bookkeeping, preparation of quarterly and annual financial statements, tax declarations, payroll administration and business advisory services.

Hagmann Gartenbau AG Therwil 

Therwil · Since 1996

Hagmann Gartenbau AG Therwil carries out landscaping and garden construction projects, provides garden maintenance services and sells garden products such as planters and garden sculptures. Maintenance offerings include annual upkeep, lawn and water-area care, hedge trimming and pruning of trees and shrubs.

Heggendorn AG 

Therwil · Since 2017

Heggendorn AG is a fiduciary firm offering services in accounting, bookkeeping, tax and business consulting. The firm serves both private clients and companies, providing services such as financial accounting, preparation of annual financial statements, tax declarations and advisory support on corporate matters.

Kiefer Projekt AG 

Therwil · Since 2009

The core activity of Kiefer Projekt AG is the planning, execution and consulting of construction projects, particularly in the field of timber construction and timber architecture. The company offers services such as new construction, renovation, building appraisal and construction management, and has specialized in the development and realization of sustainable and forward-looking houses, such as the KIMANI house.

Langenhag GmbH 

Therwil · Since 2012

The core activity of Langenhag Werkstatt GmbH is the repair, maintenance and upkeep of commercial vehicles, construction and industrial machinery, as well as industrial plants and construction equipment. This also includes specific services such as locksmith work on steel structures, painting, hydraulic work, exhaust checks and welding work.

Leimapharm AG 

Therwil · Since 1996

The core activity of Leimapharm AG is the supply of medical practices in the Basel-Land region with its own in-house pharmacy, providing pharmaceutical and practice articles, with a focus on services that complement the delivery service, particularly through personal and individualized service, to maximize customer benefits.

Zaugg Hauswartung GmbH 

Therwil · Since 2019

Zaugg Hauswartung GmbH provides property caretaking and maintenance services, including cleaning of stairwells and lifts, laundry and cellar areas, garden maintenance, waste disposal, minor repairs and winter services. The company performs routine inspections, offers a 24-hour on-call service for emergencies and prepares individual quotes after inspecting the property.

Verein Phari 

Therwil · Since 2025

The core activity of the Phari association is the distribution of food and hygiene products to people in need, as well as individual case assistance and the provision of support through a bistro where people can be heard and advised. The association also provides financial support and refers to other organizations where specialized professionals can help.

GWS Grütter Wohnungs- Sanierungen 

Therwil · Since 2023

The core activity of GWS Grütter Wohnungs-Sanierungen is the execution of renovation and restoration work on floors and walls, including the planning, implementation and supervision of projects in the areas of flooring, wall design and bathroom renovations.

Hasler Fenster AG 

Therwil · Since 2014

Hasler Fenster AG is a manufacturer of windows and doors, producing and supplying timber, timber‑aluminium and plastic windows and doors and offering installation and repair services. Its offerings include renovation windows, lift‑and‑slide doors, customer service and production practices focused on product lifecycle and sustainability.