elfero AG

What elfero AG does

elfero AG is an independent Swiss family-owned building automation integrator founded in 1969 and headquartered in Meisterschwanden, Canton Aargau. The company delivers Measurement, Control, and Regulation (MSR/HVAC) project services, freely programmable automation systems (centered on the ELESTA Controlesta RCO platform with modular I/O), and conventional regulation products (the DOMOTESTA RDO series and the pre-assembled Kompakt-Schaltschrank UST) for heating, cooling, ventilation, sanitation, and electrical subsystems. All work is built on open, manufacturer-independent protocols — BACnet/IP, Modbus RTU, KNX, M-Bus, and DALI — which allows integration across heterogeneous building systems.

The company monetizes through four streams: (1) project-based MSR professional services from planning through commissioning, (2) hardware sales of valves, actuators, sensors, and controllers stocked at Meisterschwanden (~500 SKUs, ~1,000 deliveries/year), (3) recurring subscription revenue via the elferoline™ suite (monthly VPN, annual SMS/SIM, annual Fernwartung remote-maintenance packages), and (4) service and maintenance contracts priced at CHF 178/h for service technicians and CHF 212/h for MSR experts/project managers, with a 20% discount for contract customers. Distribution is direct-sales-led through experienced project managers across four Swiss offices (Meisterschwanden HQ, Wattenwil/Berner Oberland, Stäfa technical competence center, Lucerne).

elfero AG primarily serves German-speaking Switzerland, with selective French-language site support, and targets commercial buildings, residential developments, district heating substations, hospitality venues, educational facilities, and public-sector buildings. Reference customers include Schullandschaft Stalden (Kaleidoskop Konolfingen, 1,700 data points), Hardau I in Zurich (122 apartments), PERRY-CENTER Aarburg-Oftringen, Gasthaus Albisgütli, Dampfschiff Thun, and the Bundeshaus. In April 2026, owner Louis von Mandach personally participated in acquiring a majority stake in key controller supplier ELESTA building automation GmbH (Konstanz), with elfero AG itself remaining independent.

Name

elfero AG

Legal name

elfero AG

Website

https://elfero.ch

Company type

Private

Founded year

1969

Operating status

Operating

Headcount range

11–50 employees

Short description

elfero AG is an independent Swiss family-owned building automation integrator, founded 1969, delivering MSR/HVAC project services, programmable control systems, conventional regulators, and the elferoline™ remote-management subscription suite across German-speaking Switzerland using open protocols (BACnet, Modbus, KNX, M-Bus, DALI).

Ownership category

akta.pro rank

Product category

Building Automation Services

NAICS

Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Relay and Industrial Control Manufacturing (335314)

SIC

Auto Controls For Regulating Residential & Comml Environments (3822), Switchgear & Switchboard Apparatus (3613)

akta.pro primary industry

Building Automation & Controls (BAS/BMS, HVAC Controls) (IMAIABAD)

akta.pro secondary industry

Smart Generator/Backup Power & Transfer Switch Integration with Home Automation (HSAOANAL)

Keywords

• Building automation systems
• HVAC control technology
• MSR engineering services
• Field device distribution
• Remote monitoring solutions

Headquarters

HQ city

Meisterschwanden

HQ country

Switzerland

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Supply Chain, Marketing or Sales, Infrastructure

Revenue model

1. MSR Project Services: Complete MSR (Measurement, Control, Regulation) project services including planning, schematic design, programming/parameterization, commissioning, and documentation. Each building has unique characteristics requiring customized approaches.
2. elferoline Subscriptions: Monthly VPN subscription for encrypted remote access (CHF-based), annual SMS connectivity subscription for mobile network access, and annual remote maintenance support packages with defined hours of hotline and remote access support.
3. Service and Maintenance: Maintenance contracts offering 20% discount on hourly rates. Service technicians available for commissioning support, maintenance visits, and emergency call-outs. On-call hotline available 365 days/year for customers.
4. Product Sales: Sales of field devices including valves, actuators, sensors, and controllers. Large warehouse stock in Meisterschwanden enables quick response times for commercial products and field equipment.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

elfero AG delivers MSR (Measurement, Control, Regulation) building automation projects for HVAC and energy systems, including planning, schematic design, programming, commissioning and documentation. It sells its own controllers (DOMOTESTA RDO series) and pre-assembled switchgear cabinets (Kompakt-Schaltschrank UST), partners with ELESTA for freely programmable Controlesta RCO systems, and operates the elferoline™ remote management suite (BOX hardware, VPN/SMS subscriptions, Fernwartung maintenance). The company also resells field devices such as valves, dampers, actuators and sensors from Belimo, Siemens and others, and provides ongoing maintenance, service and 365-day on-call support.

Product overview

elfero AG is an independent Swiss building automation company that offers a portfolio of proprietary and partner-sourced products organized around three main pillars: (1) freely programmable systems — centered on the ELESTA/Controlesta RCO platform with modular I/O for complex HVAC installations; (2) conventional regulation — anchored by the Domotesta RDO series (RDO353/383 and legacy RDO111/131) and the pre-assembled Kompakt-Schaltschrank UST for simpler heating and district heating substations; and (3) the elferoline™ remote management suite — comprising the elferoline.BOX hardware gateway, elferoline.VPN (monthly subscription), elferoline.SMS (annual SIM subscription), and Fernwartung (annual remote maintenance subscription). All three pillars share the same ecosystem of field devices (valves, actuators, sensors from Belimo and Siemens) and are designed for integration via open protocols (BACnet/IP, Modbus RTU, KNX, M-Bus, DALI). elfero AG also resells a broad range of commercial field devices and provides project execution, commissioning, maintenance, and on-call services.

Differentiator

Problem solved

Functional benefit

Brands

• elferoline: Remote management and monitoring solution for building automation systems, including elferoline.BOX (hardware), elferoline.VPN (remote access subscription), and elferoline.SMS (mobile connectivity).

Products and services

• MSR-Projekte (Measurement, Control & Regulation Project Services) End-to-end MSR project execution for heating, cooling, ventilation, sanitation and electrical building systems, delivered by dedicated project managers from assignment through commissioning. For commercial, residential, hospitality, educational, public-sector and district-heating building owners in Switzerland.
• Freely Programmable Systems (Controlesta RCO) Freely programmable building automation and control systems based on ELESTA's Controlesta RCO controller with modular I/O and integrated web server, enabling graphical control via web browser including over the internet. Deployed by elfero AG in complex HVAC projects requiring vendor-independent integration.
• Conventional Regulation (Domotesta RDO353 / RDO383) Pre-programmed conventional heating regulators controlling heating circuits based on outdoor or room temperature, with boiler control (1/2 stage) and DHW regulation. The RDO353/RDO383 support up to 7 separately controlled heating circuits via extension modules. Used in heating substations and smaller HVAC installations.
• Kompakt-Schaltschrank UST Pre-assembled halogen-free electrical cabinet for simple heating substation installations with DOMOTESTA RDO3xx controllers and up to 3 heating circuits. Standardized, competitively priced, immediately available from stock; suitable for new construction and renovation of heating substations, particularly district heating.
• elferoline.BOX Remote Access Hardware Compact technical device that connects building automation installations to the internet for remote operation via smartphone and tablet. Includes 3-port switch + 1 WAN port (10/100 Mbps), LTE modem with dual SIM and remote antennas, WLAN router (IEEE 802.11b/g/n), firewall and 128-bit Blowfish VPN for encrypted remote access.
• elferoline.VPN Remote Access Subscription Monthly subscription providing simple remote access to building automation systems via web browser, with high security through certificate/password user authentication and 128-bit encrypted data traffic. Priced in CHF.
• elferoline.SMS Mobile Connectivity Subscription Annual subscription providing internet connectivity via the mobile network (SIM card) for elferoline.BOX installations at locations without fixed-line internet access.
• Fernwartung (Remote Maintenance) Subscription Annual subscription providing a defined number of hotline support and remote access hours for operator advice, fault diagnosis, troubleshooting and small technical interventions such as configuring a new mobile number for SMS alerts.
• Wartung / Service / Pikett (Maintenance, Service & On-Call) Maintenance contracts (with 20% discount on hourly rates), service technician dispatch for commissioning support and maintenance visits, and emergency call-out service. On-call hotline available 365 days/year for contract customers.
• Produkte / Feldgeräte (Field Devices) Resale of commercially available field devices including valves, dampers, actuators and sensors sourced from partner manufacturers (Belimo, Siemens, THERMOKON, TEM). Stocked at the Meisterschwanden warehouse for rapid delivery. Approximately 1,000 product deliveries per year.
• Sollwertkorrekturgeber 0..10V Setpoint correction device (24V) for installation in control panel fronts, used in plants with heating and/or cooling functions to adjust the base setpoint. Has no engraved absolute values, allowing flexible baseload setpoint adjustment. Price CHF 100 per unit excluding VAT and delivery.

Quantifiable outcome

• Intelligent buildings that reliably ensure user well-being, save money, and protect the environment

Named customers6 records

Segments6 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration10 records

Feature5 records

Partnerships

Four partnerships are on record, tiered core and minor.

• ELESTA building automation GmbHcoreTechnology or Integration · 24 April 2024ELESTA is a manufacturer of building automation controllers (Controlesta RCO, DOMOTESTA RDO). elfero AG is a long-term customer and the largest customer of ELESTA. In April 2026, Louis von Mandach (elfero AG owner) participated in acquiring a majority stake in ELESTA building automation GmbH in Konstanz, Germany, along with other system house owners. The elfero AG company itself is not part of this investment and remains independent. ELESTA products are characterized by very reliable systems, high quality, and long-term availability.
• ELESTA building automation GmbHcoreStrategic or Co-development PartnerFollowing the acquisition of ELESTA by its customers including Louis von Mandach, the goal is to develop ELESTA further with market proximity. New products and functionalities based on real project experience are planned, with focus on stable products and complementary manufacturer-side services.
• aeesuisseminorOthersSwiss industry association membership for building automation and energy sector.
• energie cluster schweizminorOthersSwiss energy cluster membership for networking and industry collaboration.

Scale indicators5 records

Recent moves5 records

Expansion highlights6 records

Broad incumbents

• Honeywell Building Technologies: Major global BAS vendor with Niagara-based open-protocol BMS offerings. Competes with elfero AG for commercial and institutional building automation projects in Switzerland via partner integrators and direct sales.
• WAGO Kontakttechnik: Larger automation vendor offering freely programmable controllers (WAGO-I/O-SYSTEM) used for building automation and HVAC. Competes with ELESTA/Controlesta RCO platforms that elfero AG specifies, particularly on larger Swiss commercial projects.
• Siemens Smart Infrastructure: Global incumbent providing Desigo building automation, HVAC field devices, and full MSR project services. elfero AG specifies Siemens field devices in its installations but competes with Siemens' direct integrator channel for larger Swiss projects.
• Landis+Gyr: Swiss-listed energy management and metering company with adjacent smart-building offerings. Comparable in Swiss market presence and energy-management scope but operates at much larger scale across metering rather than HVAC-focused MSR.

Direct peers

• Sauter AG: Swiss-headquartered building automation specialist offering MSR/HVAC controllers, BMS software, and service across commercial buildings. Directly comparable to elfero AG in target customers (Swiss commercial/residential buildings) and core offering (HVAC automation with service contracts).
• DEOS AG: German provider of open-protocol building automation (BACnet, Modbus, KNX) with system-house delivery model. Direct peer for elfero AG on DACH HVAC projects requiring manufacturer-independent integration.
• Kieback&Peter: German building automation system house offering controllers, BMS software, and MSR service — closely matching elfero's business model of design, commissioning, and maintenance for HVAC automation in DACH-region buildings.
• Belimo Automation AG: Swiss manufacturer of field-level HVAC actuators, valves, and sensors that elfero AG resells and integrates. While Belimo is upstream of elfero as a supplier, its offering to system integrators and direct OEM channel overlaps elfero's product-plus-service play in the Swiss BAS market.
• THERMOKON Sensortechnik AG: Swiss-rooted manufacturer of BACnet/Modbus/KNX sensors and room operating panels used in building automation. Listed as an elfero AG product partner and competing for the same open-protocol sensor/controller scope in Swiss installations.
• LOYTEC (Delta Electronics): Manufacturer of freely programmable building automation controllers using BACnet, LonWorks, Modbus, and KNX. Explicitly cited as a product partner by elfero AG for highly flexible installations — competing for the same 'open, programmable' integrator slot in Swiss projects.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCfYcSMg25SgA7fQJ3DmVHNg
• Xx.com/elfero_ag
• LinkedInlinkedin.com/company/elfero-ag

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about elfero AG