Technical Consulting & Engineering in
Appenzell

HD-Plan GmbH

Since 1999 · 1–10 empl.

The company's core activity is the planning and consulting of construction projects, particularly in the field of timber construction, as well as the promotion and use of wood as an ecological building material.

Quadient CXM AG

Since 2002 · 1–10 empl.

Quadient CXM AG provides Customer Communications Management (CCM) software and related services, including the Inspire and Impress platforms for document automation, orchestration and delivery. The company’s offerings also include accounts receivable solutions as well as mail and post‑processing products and services, including parcel locker solutions.

Perpetuum AG

Since 2003 · 1–10 empl.

The core activity of perpetuum AG is the conception and implementation of environmental solutions for companies, particularly in the development of sustainability concepts and the creation of project outlines to achieve these goals.

Oekoplan AG

Since 2006 · 1–10 empl.

Oekoplan AG is an engineering firm for building services that provides planning and engineering for heating, ventilation, air conditioning, refrigeration and sanitary systems. Its services include specialist coordination (HLKKSE), energy reports, Minergie standard consulting, expert assessments and BIM engineering.

SIMEXcomposites GmbH

Since 2006 · 1–10 empl.

The core activity of SIMEXcomposites GmbH is the development, manufacture and implementation of innovative composite solutions, particularly made of glass fiber reinforced materials, for various industrial sectors such as telecommunications, energy and construction. The company offers customized solutions for specific customer requirements, including planning, design, manufacturing and assembly of components and structures.

SIMEXtelecom GmbH

Since 2012 · 1–10 empl.

The company's core activity encompasses the development, design, implementation, and integration of solutions for the telecommunications and energy sectors. This includes, in particular: * The planning, development, and implementation of energy systems, especially solar energy systems, for use in residential and commercial spaces, as well as for autonomous or supporting operation of telecommunications systems. * The development and design of (glass) fiber-reinforced composite materials as an alternative to conventional materials such as steel or aluminum. * The integration of mobile communication systems, including lightweight cladding and optical adaptation to the built environment. * The execution of surveys and drone surveys for the planning and implementation of telecommunications and energy systems. * The provision of consulting and planning services for the telecommunications and energy sectors. The company thus offers comprehensive system solutions for the telecommunications and energy sectors, from planning and development to implementation and integration.

Artusa International AG

Since 2017 · 1–10 empl.

Artusa International AG provides protection solutions for rockfalls, unstable ground, landslides, debris flows and avalanches, and offers consultancy, design, production, installation and maintenance services.

LIEMONT Schweiz GmbH

Since 2019 · 21–50 empl.

The company LIEMONT offers customized industrial services, particularly in the areas of assembly, service, maintenance and repair of machines and systems, as well as project management and supervision. The core activity of the company includes the planning, coordination and implementation of industrial assemblies, machine and system relocations, as well as the takeover of service activities for manufacturers and operators in various industries, such as mechanical engineering, energy and environmental technology, food and food technology, logistics, metal construction, wood and wood products, stone, earth and cement.

signer medizintechnikplanung (s-mtp) gmbh

Since 2023 · 1–10 empl.

signer medizintechnikplanung (s-mtp) gmbh is a planning and consulting firm for medical technology in the healthcare sector, providing consulting, planning, procurement and project realisation services for medical-technology projects. The company also offers digital modelling (3D/VR/AR), project coordination and technical construction management.

Signer Planung & Engineering GmbH

Since 2025 · 1–10 empl.

Signer Planung & Engineering GmbH is an engineering firm focused on timber construction, providing structural design, static calculations and engineering consultancy for new builds and renovations. Services include feasibility studies, BIM coordination, execution statics, detailing, site supervision and fire-safety calculations.

Sencon Energy GmbH

Since 2008 · 1–10 empl.

Sencon Energy GmbH is an engineering consultancy focused on sustainability and energy in the built environment. The company prepares energy performance proofs and GEAK assessments, supports Minergie certifications and provides building-physics analyses, simulations and technical building-services consulting for renovations and new construction.

BI3 Consult GmbH

Since 2026 · 1–10 empl.

BI3 Consult GmbH is a Swiss boutique consultancy for data and AI serving industrial mid-sized companies. The company combines ERP expertise, data architecture, analytics, and applied AI, and offers services including assessments, analytics modernisation, AI solutions, Fractional Head of Data & AI, and workshops and academy formats.