Company lists · Data refreshed September 2026
Top 25 Solar inspectors and engineers based in Switzerland
RevenueBase identified 106 solar inspectors and engineers headquartered in Switzerland as of September 2026 and tracks 574 professional contacts across them, including 222 with verified work emails. Bern is the largest hub.
This list covers solar inspectors and engineers headquartered in Switzerland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 18, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest solar inspectors and engineers based in Switzerland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 69 contacts → | ||||
Indirect evidence “Nous sommes une entreprise qui a pour but l'ingénierie, le conseil, la conception, l'établissement de projets, la direction des travaux et l'exploitation dans le domaine des…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 2 | 50 contacts → | ||||
Indirect evidence “Willkommen bei Planeco GmbH – deiner wegweisenden Partnerin für innovative Energielösungen!” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 3 | 28 contacts → | ||||
Indirect evidence “Emmar SA est un bureau d’ingénieurs spécialisés dans le domaine de l’électricité, des énergies renouvelables ainsi que des nouvelles technologies.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 4 | 24 contacts → | ||||
Indirect evidence “RESiQ setzt sich für den erfolgreichen Einsatz von erneuerbaren Ressourcen (RES) ein und ermöglicht durch intelligente technische Lösungen (iQ) deren effiziente und nachhaltige…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 5 | 20 contacts → | ||||
Indirect evidence “Sonnenlicht in Strom umzuwandeln, ist eine geniale Technik!” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 6 | 14 contacts → | ||||
Indirect evidence “Wir finden für Sie die optimale Anlage.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 7 | 12 contacts → | ||||
Indirect evidence “Die Energiespezialisten der convoltas AG sind auf die Entwicklung, den Bau und den Unterhalt von Photovoltaik-Grossanlagen spezialisiert.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 8 | 11 contacts → | ||||
Partial evidence “Syntegra Solar International AG is a specialized Consulting & Advisory Services and Solar Project Development firm recognized for its expertise and experience in Renewable…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 9 | 10 contacts → | ||||
Indirect evidence “Das Team-Tresolar ist Ihr technischer und ästhetischer Lösungsfinder im Bereich Solarenergie.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 10 | 10 contacts → | ||||
Indirect evidence “Strom vom Dach, e gueti Sach!” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 11 | 9 contacts → | ||||
Indirect evidence “Stichsolar – Ihr Partner für Photovoltaik, Batteriespeicher und intelligente Energielösungen in der Nordwestschweiz Im Winter 2007 wurde unser Firmengebäude durch einen Brand…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 12 | 9 contacts → | ||||
Indirect evidence “Aiutiamo architetti e progettisti a sviluppare e realizzare progetti fotovoltaici dal residenziale al aziendale, anche verticale.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 13 | 9 contacts → | ||||
Indirect evidence “Nous offrons une gamme complète de produits et services pour répondre à vos besoins en matière d'énergie solaire et d'efficacité énergétique.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 14 | 7 contacts → | ||||
Indirect evidence “Eco-Building Concept est un bureau d'ingénieurs spécialisé en énergétique du bâtiment et dans l'étude d'installations de chauffage, de ventilation et de climatisation- Études…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 15 | 7 contacts → | ||||
Indirect evidence “Mon partenaire photovoltaïque valaisan” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 16 | 7 contacts → | ||||
Partial evidence “ch-Solar beschäftigt sich seit 1980 mit Photovoltaik.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 17 | 7 contacts → | ||||
Indirect evidence “SoloSolar GmbH realisiert hochwertige, schlüsselfertige Solaranlagen im Privat- und Gewerbebereich.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 18 | 7 contacts → | ||||
Strong evidence “Photovoltaic Product Engineering // Solar Power Plant Engineering and Project Development // Electromobility Solutions Solar Professionals with in-depth Up and Downstream…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 19 | 6 contacts → | ||||
Partial evidence “Die Solar Alliance AG, welche Teil der TSG-Gruppe ist, europäischen Marktführer für technische Dienstleistungen im Bereich nachhaltiger Mobilitätslösungen, steht für…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 20 | 5 contacts → | ||||
Indirect evidence “ALSOL AG ALTERNATIVE ENERGIESYSTEME is a company based out of Frauenfeld, Thurgau, Switzerland.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 21 | 5 contacts → | ||||
Indirect evidence “Swiss Electro Service GmbH ist ein spezialisiertes Unternehmen für Elektrofachbauleitung, Elektrokontrollen und technische Dienstleistungen in der Gebäudetechnik.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 22 | 5 contacts → | ||||
Indirect evidence “esfera - Ihr zuverlässiger Anbieter für Solarenergie.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Indirect evidence “Elektroinstallationen Elektroplanung Elektrokontrollen Photovoltaikanlagen LED Beleuchtungen Sanierungen Umbau Neubau” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 contacts → | ||||
Indirect evidence “Unabhängiges Planungsbüro für Photovoltaikanlage und deren baulichen Integration” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 contacts → | ||||
Indirect evidence “KATEQ est un bureau de conseils en ingénierie spécialisé dans la conception de systèmes énergétiques, thermiques, de ventilation, de MCR (Maîtrise de la Consommation des…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: solar inspectors and engineers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names solar inspectors and engineers.
- Partial evidence
- Its own public description names part of solar inspectors and engineers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name solar inspectors and engineers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 106 solar inspectors and engineers based in Switzerland
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Solar inspectors and engineers based in Switzerland at a glance
As of Sep 18, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Switzerland, so it is reported there. Company counts and contact totals on this page are exact for Switzerland, over 106 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among solar inspectors and engineers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Switzerland whose own description of what they do matches “solar inspectors and engineers”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names solar inspectors and engineers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among solar inspectors and engineers, and records with no verified work email. Companies headquartered outside Switzerland are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 222 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 18, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names solar inspectors and engineers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many solar inspectors and engineers are there based in Switzerland?
RevenueBase identified 106 solar inspectors and engineers headquartered in Switzerland as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Betelec SA, headquartered in Villars-Ste-Croix, tops this list with the largest team on record.
Which city has the most solar inspectors and engineers?
Bern leads with 3 headquartered companies, followed by Lausanne (3) and Zurich (3).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 222 verified decision-maker contacts tracked across these 106 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 18, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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