What Dome Solar does

Dome Solar is a French manufacturer of photovoltaic panel mounting and fixation systems, founded in 2008 and headquartered in Rezé (Loire-Atlantique). The company designs and produces steel and aluminum mounting solutions for three core configurations: pitched roofs (trapezoidal steel decks, sandwich panels, fiber cement), flat roofs with waterproofing membranes (bitumen, PVC, TPO, EPDM, EVALON), and solar canopies / parking shades, with a recently added ground-mount range. Its proprietary thermo-welded technology allows ballast-free installation on flat roofs without membrane perforation, an approach certified across 18 ATec/ETN technical evaluations, ATEx de cas a, Broof (t3) fire ratings, and FDES environmental declarations — collectively described as the broadest certified mounting portfolio on the French market. Since 2023 the company has operated an on-demand steel rail production line at its Rezé facility, and in May 2026 it acquired the Mounting Systems brand to accelerate international expansion.

Dome Solar is a privately held SAS, subsidiary of the Kingspan Bacacier Group, with 11–50 employees and €500,000 of registered capital. Revenue is generated through B2B hardware sales of proprietary mounting systems to certified installers, building owners, and distribution partners, priced on a quote basis project-by-project. The go-to-market is enterprise field sales with technical sales support, an in-house engineering bureau for project planning, an online quote request system (devis en ligne), and a certified installer partner network delivering final installations. The company is part of the Kingspan Group's broader building envelope portfolio, and publicly lists 33 export countries with localized websites in up to seven languages including dedicated Morocco/Tunisia subdomains.

The customer base is diversified across commercial and industrial buildings, agricultural structures, parking canopies, public buildings, and territorial collectivities, with named enterprise customers spanning construction (Dicoma, AWAS, Groupe Fauché, Legendre Energie), renewable energy developers (VSB Energies Nouvelles, Gamco Energy, Enerdeal by EDP), and engineering/consulting (SOLENGIE). Strategic co-certification partnerships with Firestone-Elevate (Holcim) for TPO and IKO for PVC membranes embed Dome Solar systems into the technical specifications of major European waterproofing membrane manufacturers, supporting distribution leverage and specification lock-in across the C&I PV market.

Name

Dome Solar

Legal name

Dome Solar

Website

https://dome-solar.com

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

11–50 employees

Short description

Dome Solar is a French manufacturer of photovoltaic mounting and fixation systems for commercial, industrial, and agricultural rooftops, canopies, and ground-mount installations, holding 18 ATec/ETN certifications and exporting to 33 countries as a subsidiary of the Kingspan Bacacier Group.

Ownership category

akta.pro rank

Product category

Photovoltaic Mounting Systems / Solar Racking Hardware

NAICS

Sheet Metal Work Manufacturing (332322)

SIC

Prefabricated Metal Buildings & Components (3448)

akta.pro primary industry

Solar Mounting, Racking, Trackers & Structural BOS Manufacturing (EUAMAHAC)

akta.pro secondary industries

Solar Roofing & Roof-Mounted PV Systems (IMADAFAO), Roof-Mounted Systems Integration (PV, Green Roofs, Roof Gardens, Snow Guards) (IMAFAMAI)

Keywords

• Photovoltaic mounting systems
• Solar panel fixings
• Flat roof racking
• Solar carport canopies
• Industrial solar mounting

Headquarters

HQ city

Rezé

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Photovoltaic mounting system sales: Sale of proprietary mounting and fixation systems for photovoltaic panels. Products are sold directly to installers, building owners, and through distribution partners. The company manufactures fixation systems for pitched roofs, flat roofs, and canopies, as well as accessories and compatible components.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Dome Solar designs, manufactures, and sells photovoltaic panel mounting and fixation systems for large rooftops and canopies, serving industrial, commercial, and agricultural building projects. Its portfolio covers pitched-roof, flat-roof (thermo-welded, ballast-free), and parking canopy/carport mounting solutions, with 18 ATec/ETN technical evaluations and in-house steel rail production since 2023. The company also provides engineering bureau support, a Progressive Web App, and an online quote-request service for B2B customers.

Product overview

Dome Solar is a French manufacturer of premium photovoltaic panel mounting and fixation systems, operating since 2008 from Rezé, Loire-Atlantique. The company produces the broadest mounting systems portfolio on the market, organized into three main product ranges: (1) the Gamme Toitures Inclinées (Pitched Roof Range) covering trapezoidal steel decks, sandwich panels, and fiber cement roofs with products including HELIOS B², KOGYSUN+, KOGYSUN i+, ITAL-SOLAR, ITAL-SOLAR-DROM, FIBRO-SOLAR, S360M, EB-SOLAR, NPA, NPA 3.45, NPO 3.45, NPO-NPA, NPA+ Side, NPA+ Top, D160 BIFACIAL, RB-SOLAR, and NPO-NPA PE; (2) the Gamme Toitures Terrasses (Flat Roof Range) using thermowelded technology across multiple membrane types with products including ROOF-SOLAR BITUME, ROOF-SOLAR BITUME INCLINE, ROOF-SOLAR PVC, ROOF-SOLAR PVC INCLINE, ROOF-SOLAR EPDM, ROOF-SOLAR TPO, ROOF-SOLAR TPO INCLINE, ROOF-SOLAR EVALON, and ROOF-SOLAR EVALON INCLINE; and (3) the Gamme Ombrières (Canopy Range) featuring the HÉLIOS RC3 PV carport system. Dome Solar also offers a Progressive Web App (PWA) as a digital service tool. Since 2023, the company has operated its own on-demand steel rail production line at its Rezé headquarters, and in May 2026 it acquired the Mounting Systems brand to accelerate international expansion.

Differentiator

Problem solved

Functional benefit

Products and services

• HELIOS B² Fixation system for photovoltaic panels on trapezoidal steel decks (bacs secs) and sandwich panels, fixed into the building's structural purlin. Targets commercial and industrial buildings.
• KOGYSUN i+ Fixation system for photovoltaic panels on sandwich panel roofs.
• KOGYSUN + Fixation system for photovoltaic panels on dry steel deck roofs (bacs secs).
• ITAL-SOLAR Fixation system for photovoltaic panels on dry steel decks and sandwich panels.
• ITAL-SOLAR-DROM Fixation system for photovoltaic panels on dry steel decks and sandwich panels, designed for overseas territories (DROM).
• FIBRO-SOLAR Fixation system for photovoltaic panels on fiber cement roof tiles, primarily for agricultural buildings.
• S360M Fixation system for photovoltaic panels on dry steel deck roofs.
• EB-SOLAR Fixation system for photovoltaic panels on dry steel decks, fixed into the pan of trapezoidal sheets.
• NPA Fixation system for photovoltaic panels on dry steel decks and sandwich panels, fixed into the pan of trapezoidal sheets.
• NPA 3.45 Fixation system for photovoltaic panels on dry steel decks, fixed into the pan of trapezoidal sheets.
• NPO 3.45 Fixation system for photovoltaic panels on dry steel decks, fixed into the pan of trapezoidal sheets.
• NPO-NPA Fixation system for photovoltaic panels on dry steel decks, fixed into the pan of trapezoidal sheets.
• NPA+ Side Side-mounted fixation system for photovoltaic panels on dry steel decks and sandwich panels.
• NPA+ Top Top-mounted fixation system for photovoltaic panels on dry steel decks.
• D160 BIFACIAL Fixation system designed for bifacial photovoltaic panels on dry steel decks.
• RB-SOLAR Fixation system for photovoltaic panels on dry steel decks, fixed into the pan of trapezoidal sheets.
• NPO-NPA PE Fixation system for photovoltaic panels on residential roof tiles.
• ROOF-SOLAR BITUME Thermowelded flat roof fixation system for photovoltaic panels on bitumen membrane roofs, ATec-certified, using flame welding without ballast.
• ROOF-SOLAR BITUME INCLINE Thermowelded inclined flat roof fixation system for photovoltaic panels on bitumen membrane roofs, ATec-certified.
• ROOF-SOLAR PVC Thermowelded flat roof fixation system for photovoltaic panels on PVC membrane roofs, ETN-certified with IKO PVC Armourplan SM 150 membrane. Broof (t3) fire rated.
• ROOF-SOLAR PVC INCLINE Thermowelded inclined flat roof fixation system for photovoltaic panels on PVC membrane roofs, ETN-certified with IKO PVC Armourplan SM 150 membrane. Broof (t3) fire rated.
• ROOF-SOLAR EPDM Flat roof fixation system for photovoltaic panels on EPDM membrane roofs, ETN-certified.
• ROOF-SOLAR TPO Thermowelded flat roof fixation system for photovoltaic panels on TPO membrane roofs, certified with UltraPly TPO membrane from Firestone-Elevate. Broof (t3) fire rated.
• ROOF-SOLAR TPO INCLINE Thermowelded inclined flat roof fixation system for photovoltaic panels on TPO membrane roofs, certified with UltraPly TPO membrane from Firestone-Elevate. Broof (t3) fire rated.
• ROOF-SOLAR EVALON Flat roof fixation system for photovoltaic panels on EVALON membrane roofs, ATEx de cas a certified.
• ROOF-SOLAR EVALON INCLINE Inclined flat roof fixation system for photovoltaic panels on EVALON membrane roofs, ATec-certified.
• HÉLIOS RC3 Photovoltaic carport (canopy) mounting system available in Double Monorampant en T, Simple Poteau Déporté, and Double Y configurations. ETN certified. Steel rails produced on-demand at the Rezé facility since 2023.
• IKO EXCEL SOLAR Partner product photovoltaic mounting solution offered through collaboration with IKO, a waterproofing membrane manufacturer.
• Dome Solar Progressive Web App (PWA) Proprietary Progressive Web App (PWA) providing mobile-first offline access to all product sheets, installation videos, compatible covering materials, project references, and technical evaluation information for installers and partners.

Quantifiable outcome

• Delivered to 33 countries worldwide
• +2 more outcomes

Named customers9 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Five partnerships are on record, tiered core, minor and flagship.

• FIRESTONE – ELEVATE (Holcim)coreTechnology or IntegrationPartnership for TPO membrane compatibility. Dome Solar's Roof-Solar TPO and Roof-Solar TPO Incliné systems are certified with the UltraPly TPO membrane from Firestone Building Products (now Holcim Elevate). The thermo-welded fixation system is specifically designed for hot air welding to this membrane type.
• IKOcoreTechnology or IntegrationPartnership for PVC membrane compatibility. Dome Solar's Roof-Solar PVC and Roof-Solar PVC Incliné systems are certified with the IKO PVC ARMOURPLAN SM 150 membrane from IKO. Products are specifically engineered for hot air welding to this waterproofing membrane.
• BlueMarketingminorGTM or Marketing PartnerDigital transformation agency responsible for website development and SEO services. Created and maintains the dome-solar.com website and search engine optimization activities.
• Soleol SAminorOthersSwiss solar energy company providing video content for the Dome Solar website. Welcome video images on the homepage feature the Onnens, Switzerland project.
• Kingspan Bacacier GroupflagshipStrategic or Co-development PartnerParent company belonging to the Kingspan Bacacier Group, a major European manufacturer of building envelope solutions. The group association provides industrial expertise and manufacturing capabilities supporting Dome Solar's production operations in Rezé.

Scale indicators5 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Aerocompact: Austrian PV flat-roof mounting specialist. Direct competitor in ballast-free and aerodynamically optimized flat-roof PV racking, sharing Dome Solar's engineering-led go-to-market.
• K2 Systems: German manufacturer of pitched-roof and flat-roof PV mounting systems with broad European presence. Closely comparable product portfolio, target customers (commercial installers), and channel model.
• Mounting Systems: European PV mounting systems manufacturer recently acquired by Dome Solar (May 2026). Direct overlap in roof-mounted and ground-mounted racking with international installer channel.
• Renusol: European PV mounting systems manufacturer specializing in flat-roof and pitched-roof racking. Direct competitor in the same flat-roof ballast/ballast-free product category where Dome Solar competes.
• Solar Steel (Gonvarri Solar Steel): Spanish manufacturer of fixed-tilt and single-axis tracker solar mounting structures. Comparable in serving utility-scale and commercial PV developers with metal racking products across European and Latin American markets.
• Sun Ballast: Italian manufacturer of ballasted flat-roof PV mounting systems. Directly competes with Dome Solar's flat-roof range and shares the Mediterranean-European commercial PV installer channel.
• Ciel & Terre: French specialist in solar canopies (parking and agricultural), directly comparable to Dome Solar's HÉLIOS RC3 ombrière range and France-based footprint.
• Esdec: Dutch manufacturer of professional PV mounting systems for pitched and flat roofs with strong European distribution. Comparable B2B specialist model serving commercial installers across multiple roof types.
• Schletter Group: German manufacturer of solar mounting systems for pitched, flat and ground-mounted PV. Directly comparable to Dome Solar as a competing specialist in roof-integrated PV racking across Europe.

Broad incumbents

• Kingspan Group: Ultimate parent group of Dome Solar (via Kingspan Bacacier). Broad building envelope manufacturer offering insulated panels, roofing, and increasingly renewable-energy-adjacent products across global markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@domesolar9781
• Facebookfacebook.com/pages/DOME-SOLAR/1421989344689417
• LinkedInlinkedin.com/company/dome-solar
• Instagraminstagram.com/dome_solar
• Xx.com/DOMESOLAR

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

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 Dome Solar