What IONTEC does

IONTEC GmbH is a Swiss solar energy installation company headquartered in Benken, with a branch office in Richterswil, serving residential and commercial property owners in the Zurich region. Founded in 2006, the company designs, sells, and installs photovoltaic systems across four primary configurations: glass-glass modules, flat roof east-west installations, roof-integrated systems, and tile roof/surface-mounted systems. Complementing the installation work, IONTEC sells individual components including modules, inverters, mounting systems, and PV storage systems, sourced from certified partners such as Tesla, Fronius, Sonnen, Varta, and Swissolar.

The business operates on a direct-to-customer model, generating revenue through one-time hardware sales and professional installation services with custom quotations based on system size, component selection, and property characteristics. Customers reach IONTEC through its website, reference project galleries, phone, and email, with the company's 500+ documented reference installations and 18+ years of regional presence functioning as the primary trust signals. The company is privately held as a GmbH under Swiss law, with no external investors, parent company, or disclosed funding rounds, and operates with a micro headcount of 1-10 employees.

Name

IONTEC

Legal name

Iontec GmbH

Website

http://www.iontec.ch

Company type

Private

Founded year

2007

Operating status

Operating

Headcount range

1–10 employees

Short description

IONTEC GmbH is a Swiss solar photovoltaic installation company serving residential and commercial property owners in the Zurich region, designing and installing rooftop, flat roof, and integrated PV systems with battery storage options.

Ownership category

akta.pro rank

Product category

Solar Energy Installation Services

NAICS

Roofing Contractors (23816), Solar Electric Power Generation (221114)

akta.pro primary industry

Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System) (EUAMABAB)

akta.pro secondary industries

Roof-Mounted Systems Integration (PV, Green Roofs, Roof Gardens, Snow Guards) (IMAFAMAI), Solar Plant Components Supply & Manufacturing (Modules, Cells, Wafers, Mirrors, Heliostats) (EUACAGAK)

Keywords

• Photovoltaic installation
• Solar energy systems
• Rooftop solar mounting
• PV battery storage
• Solar inverter systems

Headquarters

HQ city

Richterswil

HQ country

Switzerland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Photovoltaic System Sales and Installation: One-time sales and installation of complete photovoltaic systems including solar modules, inverters, mounting systems, and battery storage. Customers purchase systems that are custom-designed and installed on their properties. The company generates revenue from both equipment sales and professional installation services.
2. Component Sales: Sales of individual components including modules, inverters, mounting systems, and PV storage systems to customers who may self-install or already have partial systems.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

IONTEC sells and installs complete photovoltaic (PV) systems for residential and commercial rooftops in Switzerland, offering four main installation types — Glas-Glas modules, flat-roof east-west arrays, roof-integrated systems, and tile-roof/surface-mounted systems — bundled with components such as PV modules, inverters, mounting hardware, and battery storage. The company delivers end-to-end service from consultation and planning through installation and grid connection. Revenue is generated from one-time equipment sales combined with professional installation services.

Product overview

IONTEC is a Swiss solar energy installation company offering comprehensive photovoltaic systems. Their portfolio includes four main installation system types: Glass-Glass Modules, Flat Roof East-West Systems, Roof Integration Systems, and Tile Roof/Surface-Mounted Systems. These are complemented by key component products including Modules, Inverters (Wechselrichter), Mounting Systems (Montagesysteme), and PV Storage Systems (PV-Speichersysteme). The company positions itself as a full-service provider offering both installation systems and the necessary technical components, with a focus on quality materials, longevity, and aesthetic design spanning over 18 years of regional experience.

Differentiator

Problem solved

Functional benefit

Products and services

• Glas-Glas Module (Glass-Glass PV Modules) A glass-glass photovoltaic module product line using dual-glass construction for durability and longevity, offered as a standalone PV system option for Swiss residential and commercial rooftops.
• Flachdach-Anlage ost/west (Flat Roof East-West PV System) A photovoltaic installation configured for flat rooftops using east-west oriented module arrays to maximize generation across the day; targeted at residential and commercial flat-roof buildings.
• Dachintegration (Roof-Integrated PV System) An aesthetically integrated photovoltaic system that replaces conventional roofing material, providing weather protection and electricity generation in a single architectural layer; targeted at property owners prioritising visual integration.
• Ziegeldach/Aufdach-Anlage (Tile Roof / Surface-Mounted PV System) A surface-mounted photovoltaic installation designed for conventional tiled pitched roofs, attached above the existing roof covering; suitable for the majority of Swiss residential buildings.
• PV Module (Photovoltaic Modules) Standalone PV modules supplied as individual components for system construction or replacement.
• Wechselrichter (Inverters) Grid-tie inverters (including Fronius) sold as standalone components to convert PV DC output to grid-compatible AC power.
• Montagesysteme (Mounting Systems) Mechanical mounting hardware for fixing PV modules to roofs or flat surfaces, sold as standalone structural components.
• PV-Speichersysteme (PV Battery Storage Systems) Lithium-ion battery storage systems (including Tesla Powerwall and Sonnen) sold standalone or as part of complete PV systems to enable self-consumption and backup power.

Quantifiable outcome

• Over 500 completed reference installations demonstrate extensive experience across various system sizes and configurations

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core.

• SwissolarcoreStrategic or Co-development PartnerIONTEC is an official and certified partner of Swissolar, the Swiss solar energy association. This certification provides credibility and ensures the company meets Swiss industry standards for solar installations.
• FroniuscoreTechnology or IntegrationFronius is a leading manufacturer of solar inverters and a certified partner of IONTEC. The partnership ensures access to high-quality inverter technology for photovoltaic installations.
• TeslacoreTechnology or IntegrationTesla provides solar and energy storage products including Powerwall batteries. IONTEC offers Tesla integration as part of their comprehensive solar solutions for customers seeking battery storage.
• Sonnen (Sonnen GmbH)coreTechnology or IntegrationSonnen is a manufacturer of home battery storage systems. IONTEC partners with Sonnen to provide integrated solar-plus-storage solutions for customers looking to maximize self-consumption.

Scale indicators3 records

Recent moves4 records

Expansion highlights3 records

Direct peers

• TRITEC International AG: Swiss solar PV wholesaler and installer serving residential and commercial customers. Closest comparable to IONTEC: same Swiss-domiciled EPC business model, same customer segments, same technology stack, but at meaningfully larger scale.
• Helion Energy AG: Swiss solar EPC specializing in residential and commercial PV installations across Switzerland. Direct peer to IONTEC with identical rooftop installation model, similar geographic focus, and similar reference-project-led go-to-market.
• 3S Solar Plus AG: Swiss manufacturer and installer of building-integrated photovoltaic (BIPV) solutions. Highly comparable to IONTEC's 'Dachintegration' product line and overlapping aesthetic-integration differentiator, but combines module manufacturing with installation.
• Megasol Energie AG: Swiss manufacturer and installer of high-power PV modules for residential and commercial roofs. Comparable to IONTEC as a Swiss-domiciled solar installer with vertical-integration flavor and similar end-customer focus.
• Sunrun Inc. US residential solar installer with direct-to-consumer sales-led go-to-market. Closest international analog to IONTEC's sales-led residential model, though at vastly larger scale and with a financing/leasing overlay.
• SunPower Corporation: Residential and commercial solar installer with premium aesthetics positioning. Comparable to IONTEC's premium/aesthetic offering (Glas-Glas, roof integration) and similar customer target, but with broader geographic reach and direct module manufacturing.

Broad incumbents

• Tesla Energy: Tesla's energy business spanning Solar Roof and Powerwall batteries. Listed as a core technology/integration partner of IONTEC for storage, but operates at vastly larger scale as a broad incumbent rather than a regional installer.

Others

• Fronius International GmbH: Austrian inverter manufacturer and core technology partner of IONTEC. Comparable as an ecosystem participant - supplies the string inverters IONTEC installs, but does not itself deliver rooftop EPC services.
• sonnen GmbH: German home battery storage manufacturer and core technology partner of IONTEC. Related as a battery supplier that IONTEC integrates into its PV-plus-storage offering, but does not compete in residential installation directly.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks7 records

Key highlights6 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

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 IONTEC