What Sinergy does

Sinergy Infrastructure et Commerce SA is a Swiss multi-utility company headquartered in Martigny, Valais, operating as the municipal utility of the commune. The business is structured across two sister entities — Sinergy Commerce SA and Sinergy Infrastructure SA — and delivers an integrated portfolio of energy and infrastructure services: electricity distribution (128 GWh annually), district heating and cooling (140 GWh thermal output serving 7,500+ residents), natural gas, water supply (2.3M m³), wastewater treatment (5.7M m³), and multimedia services (internet, TV, mobile) via a partnership with net+. The company targets expansion of district heating connections to 14,000 residents by 2035.

The underlying technology is a physical multi-utility infrastructure network anchored by a CAD (chauffage à distance) central heating plant, water/wastewater treatment facilities, electrical distribution grid, and gas distribution assets. Recent additions include thermal accumulators, a 1,013 kWh battery storage system for industrial customers, smart EV charging stations, and a solar-as-a-service offering (Contracting solaire) with a public-facing solar calculator. Digital services are delivered through the Sweez multimedia brand and IP Centrex telephony. Geothermal prospecting with Geo2X is underway to diversify future thermal supply.

Sinergy's business model is a regulated municipal utility model supplemented by commercial services. Revenue is generated through regulated tariffs for electricity, gas, water, and thermal services, plus competitive-market revenue from multimedia subscriptions, solar contracting, battery storage, and EV charging. FY2025 revenue was CHF 56.8M for Sinergy Commerce SA and CHF 37.2M for Sinergy Infrastructure SA (combined ~CHF 94M / ~$104M USD). The company employs 83 people and is wholly owned by the commune of Martigny — there is no external PE/VC funding, and growth is funded through retained earnings and municipal backing. Customer segments span residential, SME, and a growing industrial book, with 10,000+ multimedia subscribers and ~400 business customers.

Name

Sinergy

Legal name

Sinergy Infrastructure et Commerce SA

Website

https://sinergy.ch

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

11–50 employees

Short description

Sinergy is a Swiss municipal multi-utility company owned by the commune of Martigny, delivering electricity, district heating/cooling, gas, water, wastewater, and multimedia services to residential, SME, and industrial customers across its concession territory.

Ownership category

akta.pro rank

Headquarters

HQ city

Martigny

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Electricity Distribution and Sales: Distribution of 100% renewable electricity to residential and business customers. Revenue from energy tariffs, grid usage fees, and measurement charges. 128 GWh distributed in 2025.
2. Thermal Networks: District heating (CAD) and district cooling (FAD) services. 140 GWh of heat produced and distributed. Revenue from connection fees and consumption-based heating charges.
3. Water Services: Potable water distribution (2.3 million m3) and wastewater treatment (5.7 million m3). Revenue from water tariffs and connection fees.
4. Multimedia Services: Internet, TV, mobile, and fixed telephony services provided through net+ partnership. 10,000+ multimedia customers. Revenue from monthly subscriptions.
5. Photovoltaic Solutions: Solar installation services, contracting solar (roof rental model), and battery storage. Revenue from installation fees and ongoing energy management services.
6. Natural Gas: Natural gas heating distribution with connection and consumption-based tariffs.

Pricing tiers

Go-to-market motion2 records

Distribution channels6 records

Marketing channels10 records

Core offering

Sinergy is a municipal multi-utility provider serving the Martigny region of Switzerland, delivering integrated thermal energy (district heating CAD, district cooling FAD, natural gas, geothermal), 100% renewable electricity, drinking water, wastewater treatment, and fiber-based multimedia (internet, TV, mobile, business telephony). The company operates as Sinergy Commerce SA and Sinergy Infrastructure SA, distributing energy and connectivity services to residential, SME, enterprise, and public-sector customers under a municipal concession.

Product overview

Sinergy Infrastructure et Commerce SA is a regional multi-utility company serving Martigny, Switzerland, offering an integrated portfolio of energy and telecommunications services. The core offering comprises five interconnected service areas: (1) Thermal energy through district heating (CAD), district cooling (FAD), natural gas, and geothermal exploration; (2) Electricity including 100% renewable supply, photovoltaic installations, battery storage, and electric vehicle charging; (3) Multimedia services distributed through the net+ partnership including residential internet (up to 10 Gbit/s), TV, mobile, and business solutions (IP Centrex, SIP Trunk, SOHO, Business PME); (4) Water services covering drinking water distribution and wastewater treatment; and (5) Sustainability programs including carbon coaching, building renovation support, and renewable heating incentives. Products and services are coordinated through online portals and physical infrastructure networks across the Martigny region.

Differentiator

Problem solved

Functional benefit

Products and services

• Internet (Residential) High-speed residential internet service delivered via fiber optic (up to 10 Gbit/s) or coaxial cable (500 Mbit/s) through the net+ network, including email accounts.
• Television Television broadcasting service with channel guide and TV programming distributed via the net+ network for residential customers.
• Mobile (Residential) Mobile telephony service for residential customers including voice, data, and messaging plans distributed via the net+ network.
• Business PME Internet Enterprise internet package for companies with 5+ employees, featuring symmetric fiber speeds up to 1 Gbit/s, fixed IP address ranges, and bridge mode support for customer equipment.
• SOHO Internet and Telephony Flexible internet and telephony bundle for small offices and home offices with speeds up to 1 Gbit/s, fixed IP, remote server access, spam protection, and business-first support.
• IP Centrex Virtual cloud-based PBX phone system hosted in Western Switzerland, offering scalable, cost-effective enterprise communications with dynamic sizing, nomadic worker integration, and web-based configuration.
• SIP Trunk Voice over IP trunking service enabling businesses to retain existing PBX systems while routing calls over internet, with Microsoft Teams compatibility and competitive rates.
• Mobile Business Business mobile telephony service with fleet management portal for subscription control, per-line configuration, cost transparency, and preferential SOHO/Business PME pricing.
• Photovoltaic Installation Full-service solar panel installation for residential and commercial rooftops, including administrative management, federal subsidy processing, and grid connection to Sinergy's network.
• Contracting Solaire Solar roof leasing service for property owners with surfaces over 300 m2, where Sinergy finances, installs, and operates the solar installation in exchange for rental income to the owner.
• Plug and Play Solar Portable solar panel systems that can be plugged in to produce and consume energy immediately without permanent installation.
• Battery Storage Energy storage systems paired with solar installations to increase energy autonomy, including residential, commercial, and large-scale industrial battery solutions.
• Energy Sharing / Local Electric Community (CEL) Local solar energy sharing programs including autocommunity (CA), virtual regroupment (RCP/RCPv), and Local Electric Community (CEL), enabling neighbors to share photovoltaic electricity within a district or municipality.
• District Heating (CAD) Centralized heating network distributing thermal energy from wood and geothermal sources, currently serving 7,500+ residents with a 2035 target of 14,000.
• District Cooling (FAD) Centralized cooling network using water from local mill races (meunières) to provide ecological building air conditioning, the first of its kind in Valais.
• Natural Gas Heating Natural gas distribution network for connected buildings with connection requests and consumption-based gas tariffs.
• Geothermal Energy Deep geothermal energy exploration and development for heating, with 3D subsurface imaging of the Rhône bend conducted in partnership with Geo2X to identify optimal drilling locations.
• EV Charging Stations Public, collective, and private electric vehicle charging stations with management portal for business fleet charging; includes smart charging for multi-tenant buildings that optimizes based on number of users and building consumption.
• Drinking Water Potable water distribution service sourcing from mountain springs, recognized as among Switzerland's best water quality, distributing 2.3 million m3 in 2025.
• Wastewater Treatment Wastewater treatment services for Martigny and neighboring municipalities, processing 5.7 million m3 in 2025, with regionalization project approved by multiple communes.

Quantifiable outcome

• Electricity prices reduced by ~5% (-1.46 ct/kWh) in 2026 to 25.64 ct/kWh average
• +5 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

Feature9 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• iELLOcoreImplementation/ SI/ Consulting PartnerRegional solar installation partner for photovoltaic projects. iELLO handles installation, technical execution, and offers solar calculators. Sinergy manages grid connection and energy buyback. Partner certified 'Les pros du solaire' by Swissolar. Located in Orsières, Valais.
• Jenni Energietechnik AGcoreTechnology or IntegrationThermal energy technology specialist. Provided large-scale hot water accumulators (15 meters tall) for Sinergy's new district heating central station. Enables heat storage during low-demand periods for peak shaving.
• Friderici Spécial SAcoreImplementation/ SI/ Consulting PartnerSpecialized logistics and transport company. Handled delivery and precise installation of large thermal accumulators for district heating central station.
• Geo2XcoreStrategic or Co-development PartnerSwiss geophysics company specializing in underground prospection. Conducted 3D seismic mapping of Martigny subsoil (July 2024) to identify geothermal potential for future district heating development. Has completed similar campaigns in Geneva, Yverdon, Sierre, Sion, and Besançon.
• DransEnergieminorChannel Partner/ Reseller/ DistributorEnergy company from the Drans valley region. Technical partner for photovoltaic installations. Recommended by Sinergy alongside iELLO and certified by Swissolar.
• net+coreChannel Partner/ Reseller/ DistributorSwiss Romandie multimedia service provider. Sinergy distributes net+ internet, TV, mobile, and telephony services (net+ brand). Partnership includes joint marketing, shared infrastructure, and customer service. Net+ also provides Sweez digital-only brand for tech-savvy customers.
• Service cantonal de l'énergie et des forces hydrauliquesminorStrategic or Co-development PartnerCantonal energy and hydraulic power service. Collaborated with Sinergy on public information sessions about energy savings during the 2022 energy crisis.
• Ville de MartignycoreStrategic or Co-development PartnerMunicipal government shareholder and primary stakeholder. Joint programs include building renovation support (Martigny Rénove), renewable heating initiatives (Chauffez Renouvelable), and carbon coaching. Sinergy holds municipal concession for utility services.
• SweezminorChannel Partner/ Reseller/ DistributorDigital-only multimedia brand launched by net+ in 2023. Targets tech-savvy customers with online-only service model. Part of net+ ecosystem distributed by Sinergy.

Scale indicators12 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• EBL (Elektra Baselland): Basel-area utility combining electricity distribution, internet/telecom, and renewable services. Comparable in bundling energy with broadband through a regional/municipal structure.
• Groupe E: Multi-utility serving the canton of Fribourg with electricity distribution, heating networks, and energy services. Comparable in being a regional multi-energy provider with grid operations and customer-facing energy products.
• IWB Industrielle Werke Basel: Municipal multi-utility of Basel providing electricity, district heating, water, and telecom/television services. Highly comparable integrated utility model with municipal ownership similar to Sinergy's Martigny concession structure.
• AEW Energie AG: Regional energy utility in Aargau offering electricity, heating, and telecommunications. Comparable mid-sized Swiss regional utility with a renewable focus and bundled service offering.
• Repower AG: Swiss utility with generation, distribution, and energy services concentrated in Graubünden and Ticino. Comparable in renewable generation, grid operations, and B2B energy services including photovoltaic and grid flexibility.
• Romande Energie: Electricity producer and distributor in French-speaking Switzerland (canton of Vaud), with growing services in solar, heating networks, and e-mobility. Directly comparable in regional distribution, renewable focus, and customer offerings.
• Services Industriels de Genève (SIG): Multi-utility for the Geneva region offering electricity, gas, district heating/cooling, water, and telecom services. Closest direct analogue to Sinergy's integrated municipal-utility model across the same five infrastructure layers.

Broad incumbents

• BKW AG: One of Switzerland's largest energy groups, with electricity generation, distribution, networks, and services across multiple cantons. Overlaps with Sinergy on grid operations and renewable services but at much greater scale.
• Swisscom AG: Switzerland's incumbent telecom operator. Competes with Sinergy's net+-resold multimedia services across internet, TV, mobile, and business telephony; not a direct municipal peer but the dominant competitive force in Sinergy's telecom segment.
• EKZ (Elektrizitätswerke des Kantons Zürich): Cantonal electricity utility for Zürich offering distribution, natural gas, and digital services (including telecom and solar). Comparable service mix but operates at a significantly larger scale.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@Sinergy.Martigny
• Facebookfacebook.com/Sinergy.Martigny
• LinkedInch.linkedin.com/company/sinergy-infrastructure-sa
• Instagraminstagram.com/sinergy.martigny
• Xx.com/sinergytweet

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Subsidiaries2 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 Sinergy