Technical Consulting & Engineering

Rhyba Engineering GmbH 

Basel · Since 2023

The core activity of Rhyba Engineering is the planning and realization of projects in chemical, pharmaceutical and thermal plant construction, covering all disciplines in a digital project environment and using the latest technologies such as BIM (Building Information Modeling).

Rhyner Lichtplanung GmbH 

Winterthur · Since 2014

The core activity of Rhyner Lichtplanung GmbH is the planning, consulting and implementation of lighting concepts for various fields of application, particularly for private and commercial spaces. This includes the conception, planning and execution of lighting systems as well as advising customers on the optimal lighting solutions for their needs.

Ribuna AG 

Interlaken · Since 2018

The core activity of Ribuna AG is the provision of engineering services in the field of infrastructure planning and development, particularly in the areas of rail infrastructure, district heating, structural engineering, road construction, supply and disposal, as well as water engineering. The company offers planning and consulting services to develop sustainable and ecological solutions for the renewal and further development of infrastructure.

Richard Conseils & Associés SA 

Givisiez · Since 1983

Richard Conseils & Associés SA is a fire-safety consultancy providing fire protection concepts, evacuation plans, audits and project or event support.

Richard Conseils Sàrl 

Givisiez · Since 2011

Richard Conseils Sàrl provides fire safety consultancy, delivering fire protection concepts, evacuation plans, audits and event safety services. The firm’s team includes AEAI-certified specialists and offers planning, compliance checks and project follow-up support, including assistance during construction phases.

Richoz Ingénieurs Conseils Sàrl 

Salvan · Since 2022

Richoz Ingénieurs Conseils Sàrl is an engineering firm specializing in the planning and implementation of projects in the field of water management and environmental protection. In particular, the company offers services in the field of water supply, such as the planning and realization of water treatment plants, as well as the implementation of studies and projects in the field of environmental and water management.

RI Consulting GmbH 

Ennetbürgen · Since 2003

Riegel Engineering GmbH 

Schocherswil · Since 2021

The core activity of Riegel Engineering is product development and engineering services in the field of mechanical engineering, particularly the development and implementation of individual and application-specific solutions for customers.

RIESERVICE-DMAIC P. & R. Riesen, Multimedia, Systeme, Projekte und Prozesse 

Hettlingen · Since 2012

Riess Ingenieur-GmbH 

Zurich · Since 2019

The core activity of Riess Ingenieur GmbH is the provision of engineering services, particularly in the areas of: plant engineering, building services engineering, safety engineering, and aerodynamics. With a special focus on tunnel ventilation, fire protection and risk analysis, the company offers consulting and planning services for tunnel projects and operators.

RIGI Technik AG 

Zug · Since 2021

RIGI Technik AG specializes in complete solutions for crude oil and natural gas, and for the chemical and mining industries, supplying equipment, spare parts and related services. The company arranges consolidated spare parts deliveries from a European warehouse and provides engineering consulting and logistics services.

Risk&Safety AG 

Aarau · Since 2001

Risk&Safety AG is a consulting company specializing in risk management in the fields of construction, technology, and organization. The core activities include: Hazard and risk analyses, Fire protection and explosion protection, Earthquake safety and structural safety, Natural hazards and infrastructure safety, Emergency organization and crisis management, Safety management and emergency preparedness, Occupational safety and training, Research and development in the field of safety and risk management. The company provides independent consulting and supports customers in developing solutions for complex safety and risk problems.

Risse Engineering SA 

Villars-Sur-Glâne · Since 2019

Risse Engineering SA is an electrical engineering firm that provides engineering services for electrical systems.

Heetec AG 

Murten · Since 2025

The core activity of Rittmeyer aqotec AG is the development, manufacture and provision of comprehensive solutions in the field of district and local heating technology, including the planning, implementation and maintenance of district heating transfer stations, special systems, buffer storage tanks, hot water treatment plants, district heating regulators, control systems, district heating analysis, optimization software and ICT security solutions.

Riverexpertise Zufferey 

Les Agettes · Since 2021

Riverexpertise is an office specializing in the investigation of flowing waters and their environment. The core activities include: Inspections of flowing waters and their environment; Safety services for work in and around flowing waters; Environmental inspections, including water sample analysis and identification of sources of water pollution; Special work in flowing waters, such as the removal of wood, debris and other obstacles; Mapping and assessment of flowing waters in terms of navigability and natural hazards; Project management and consulting related to flowing waters and their environment. The company thus offers a wide range of services focused on the investigation, safety and protection of flowing waters and their environment.

River Nautical GmbH 

Rotkreuz · Since 2007

The core activity of River Nautical is the comprehensive takeover of nautical management for river cruise ships, including the provision of nautical expertise, crew administration, organization and procurement of nautical services and products, safety concepts, fleet insurance packages, recruitment and training of qualified crews, budgeting and monitoring of nautical costs, as well as the organization of shipbuilding and upgrades.

RK NOWA GmbH 

Buochs · Since 2023

The core activity of RK NOWA GmbH is consulting and optimizing processes in various industries, particularly in material processing and handling. The specific activities include: Consulting and planning of projects in the fields of mining, cement production, energy generation, chemistry and petrochemistry, ports and terminals, as well as waste management and recycling; Conducting feasibility studies and project support; Supporting the commissioning and start-up of plants; Developing solutions for material handling, including size reduction, dry and wet processes, as well as design, operation and maintenance of plants; Optimizing processes and troubleshooting in the fields of mining, material handling and transport, as well as containment and dust control.

RLM - HANSA Industrieanlagen GmbH 

Weinfelden · Since 2002

The core activity of RLM-Hansa Switzerland is general contracting for various industries, particularly in the construction of hospitals, industrial facilities, HVAC systems (heating, ventilation, air conditioning) and oil drilling field equipment.

RMB Engineering AG 

Lucerne · Since 2017

RMB Engineering AG is an engineering firm for building services and energy systems that provides customer-specific solutions for planning, integrative engineering and operation. Core competencies include HVAC and related building services, building automation, industrial cooling and heat pumps, energy solutions, facility management and general contracting.

RMB Engineering AG - Niederlassung Basel 

Basel · Since 2024

RMB Engineering AG - Niederlassung Basel provides engineering and specialist planning services for building services and energy systems, including HVAC (HLKKSE), building automation, industrial refrigeration and energy solutions. The branch supports projects across the full lifecycle from analysis and design to operation and facility management, with an emphasis on energy efficiency and decarbonization.