Energy consulting in
Neuchâtel

BA énergies bureau technique ARNAUD

Since 2019 · 1–10 empl.·5.0(8)

BA énergies bureau technique ARNAUD is an independent technical consultancy focused on the energy performance of buildings. It provides thermal assessments and energy certificates, designs and sizes heating systems, and supports clients from initial diagnosis through to construction supervision.

BETELEC S.A. ingénieurs-conseils en électricité, succursale de Neuchâtel

Since 2002 · 1–10 empl.

BETELEC S.A. ingénieurs-conseils en électricité, succursale de Neuchâtel is an engineering and consulting firm specialising in electrical installations. Its services include project design and management in electrical engineering, energy and building security, as well as BIM and energy consulting.

PPLUS Sàrl

Since 2010 · 11–20 empl.

PPLUS Sàrl is an engineering consultancy in environmental engineering, building physics and energy. It provides studies and advice on topics including noise, air pollution, contaminated sites, sound insulation and building energy efficiency across the planning, implementation and operation phases of projects.

LMNT consultancy Sàrl

Since 2018 · 1–10 empl.

LMNT consultancy Sàrl advises architects, construction companies and public authorities on building energy efficiency and photovoltaics. Its services include strategic and technical consulting, building assessments, feasibility studies and planning support for integrating solar energy into new buildings and renovation projects.

CSD Ingénieurs SA, succursale de Neuchâtel

Since 2022 · 101–500 empl.

CSD Ingénieurs SA, succursale de Neuchâtel provides multidisciplinary engineering services in areas including the environment, nature, water and energy, as well as buildings, transport infrastructure, gravel pits and quarries. Its work includes geology, contaminated-site remediation, energy consulting and spatial planning.

KEZIA - Architecture & Energies Sàrl

Since 2021 · 11–20 empl.

KEZIA - Architecture & Energies Sàrl is a multidisciplinary architecture and engineering practice. It plans and manages building and renovation projects from feasibility studies through construction supervision, and provides energy assessments, advice on improving building performance, interior design and sustainable construction expertise.

Weinmann Energies S.A.

Since 2013 · 21–50 empl.·5.0(1)

Weinmann Energies S.A. is an independent consulting engineering firm specialising in building services, energy and sustainability. Its work includes planning and optimising technical building systems, as well as energy-efficiency consulting, building physics and sustainable construction.

Consomd Sàrl

Since 2020 · 1–10 empl.

Consomd Sàrl provides energy advice and workshops to help people understand and reduce their energy and water consumption. It supports households, businesses and public authorities with consumption assessments, practical saving measures and communication activities on energy and renewable sources.

Sydeen & Associés Sàrl

Since 2026 · 1–10 empl.

Sydeen & Associés Sàrl is an engineering firm specialising in building climate and energy systems for industrial and commercial buildings. It designs and optimises heating, ventilation, air-conditioning and plumbing installations, provides energy assessments and 3D/BIM modelling, and supports projects from planning through implementation.

a21 sàrl

Since 2010 · 1–10 empl.

a21 sàrl is an engineering consultancy providing advice and expert assessments in energy, construction and the environment. Its work includes developing concepts and managing projects in line with sustainable development principles.

Perrin Technique SA

Since 1984 · 1–10 empl.

RAXE Sàrl

Since 2024 · 1–10 empl.