Company lists · Data refreshed November 2026
Top 25 Energy efficiency engineering companies based in Switzerland
RevenueBase identified 234 company matches for energy efficiency engineering companies associated with Switzerland as of November 2026 and tracks 2,058 professional contacts across them, including 1,037 with verified work emails. Geneva is the largest hub.
This list covers company matches for energy efficiency engineering companies associated with Switzerland, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 energy efficiency engineering companies based in Switzerland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 571 contacts → | ||||
Exact match “Ü Ingenieurskunst bedeutet, mit Ressourcen richtig umzugehen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 64 contacts → | ||||
Exact match “Als führendes Ingenieurunternehmen sind wir in allen Gebäudetechnikgebieten zu Hause.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 52 contacts → | ||||
Exact match “Weinmann-Energies est un bureau d’ingénieurs-conseils EPFL-SIA-SuisseIng.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 41 contacts → | ||||
Exact match “Die ista swiss ag ist seit 1973 eine führende Immobiliendienstleisterin in der Schweiz und spezialisiert auf intelligente Lösungen im Energie- und Ressourcenmanagement.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 38 contacts → | ||||
Exact match “Lemon Consult is a specialized engineering and consulting office for energy efficiency, sustainability and renewable energies in the area of building and technical systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 32 contacts → | ||||
Exact match “Seit 2001 bieten wir unseren Teilnehmern unter der Einhaltung von Energieträger- und Produkteneutralität einen Rund-um-Service im Energie-Management mit bewährten und von Behörden…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 31 contacts → | ||||
Exact match “TECNOSERVICE ENGINEERING SA est un bureau d’études et d’ingénieurs conseils pour les installations techniques et études énergétiques liées au bâtiment et à l’industrie.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 29 contacts → | ||||
Exact match “Unserem Ingenieurunternehmen ist es ein grosses Anliegen, individuell und persönlich auf Ihre Wünsche einzugehen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 29 contacts → | ||||
Exact match “Situé à Yverdon-les-Bains et à Lausanne, ENERGA SA est un bureau d’ingénieurs-conseils EPFL-SIA actif sur l’ensemble de la Suisse romande.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 27 contacts → | ||||
Exact match “Die Steigerung von Energieeffizienz und den Einsatz von erneuerbaren Energien verfolgen wir mit Herzblut.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 25 contacts → | ||||
Exact match “Das Vernetzen der Fachgebiete Strategie & Konzept, Bauherrentreuhand, Energiecontrolling und Nebenkosten ist das Fundament unserer Kernkompetenz.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 25 contacts → | ||||
Exact match “La marque az ingénieurs regroupe des sociétés privées réunissant des ingénieurs-conseils dans les domaines de l'énergie, de la sécurité et des installations techniques pour le…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 21 contacts → | ||||
Exact match “ID GO Management SA est une société de services, alliant des compétences uniques à la croisée de l’énergie, la physique du bâtiment et l’architecture pour mettre en œuvre la…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 20 contacts → | ||||
Exact match “Intelligente Gebäudeoptimierung Willkommen bei Alfacel - einem der schweizweit führenden Ingenieurbüros auf dem Gebiet der Gebäudeautomation und Energieoptimierung.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 19 contacts → | ||||
Exact match “Wir sind ein national tätiges, anerkanntes Ingenieurbüro für Energie- und Gebäudetechnikplanungen, führend in unseren Kompetenzen und Dienstleistungen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 19 contacts → | ||||
Exact match “Aber ebenso viel mit harten Kalkulationen, Energiemanagement, mit Wissen, was zu tun ist.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 18 contacts → | ||||
Exact match “Le bureau est actif dans les domaines de l’énergétique des bâtiments, du chauffage, de la ventilation, de la climatisation et du sanitaire.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 18 contacts → | ||||
Exact match “PPLUS est un bureau d’ingénieurs qui propose des prestations spécialisées dans le génie de l’environnement, la physique du bâtiment et l’énergie.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 18 contacts → | ||||
Exact match “SORANE SA est une société spécialisée dans la conception énergétique des bâtiments et des systèmes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 17 contacts → | ||||
Exact match “SB technique est un bureau d'Ingénieur Conseil en chauffage, ventilation, climatisation et sécurité du bâtiment développant des concepts énergétiques ambitieux pour des…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 17 contacts → | ||||
Exact match “Firma: Seit 1982 ist NBG Ingenieure AG eine unabhängige Aktiengesellschaft, die ihre Kunden zu allen Energie- und Technikfragen beim Bau und der Sanierung grosser Gebäude berät.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 16 contacts → | ||||
Exact match “Actemium Romandie réalise des prestations d'ingénierie en Automation, Industrial IT, efficience energétique, génie électrique, Instrumentation pour l'industrie du process des…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 16 contacts → | ||||
Exact match “Wir sind ein erfolgreiches Ingenieur, Planungs- und Beratungsunternehmen im Bereich der Energie- und Gebäudetechnik.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 15 contacts → | ||||
Exact match “DM Energieberatung AG is a renewables & environment company based out of Paradiesstrasse 5, Brugg, Aargau, Switzerland.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 15 contacts → | ||||
Exact match “Wir sind ein Ingenieurbüro für Haus- Energie- und Gebäudetechnik und sind seit 1981 in Bern, Solothurn, Olten und Zürich tätig.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “energy efficiency engineering companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 234 energy efficiency engineering companies based in Switzerland
See the full list, filter by size, metro and specialty, and access 1,037 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Energy efficiency engineering companies based in Switzerland at a glance
As of Nov 6, 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 234 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with Switzerland whose business descriptions match “energy efficiency engineering companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 1,037 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “energy efficiency engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many energy efficiency engineering companies are there based in Switzerland?
RevenueBase identified 234 company matches for energy efficiency engineering companies associated with Switzerland as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Amstein Walthert tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most energy efficiency engineering companies?
Geneva leads with 13 company records, followed by Zurich (13) and Lausanne (8).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,037 professional contacts with verified work emails tracked across these 234 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 234 energy efficiency engineering companies based in Switzerland. Start with a free account, no credit card.
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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 SmartSearch, 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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Company intelligence · public preview
Top 25 energy efficiency engineering companies based in Switzerland
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 234 matching company records for energy efficiency engineering companies based in Switzerland, with 2,058 tracked contacts and 1,037 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 energy efficiency engineering companies based in Switzerland
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Amstein Walthertamstein-walthert.chHQ: Zurich, SwitzerlandReported employees: 1,001-5,000 | Zurich, Switzerland | 1,001-5,000 | Exact match | 571 contacts → |
“Ü Ingenieurskunst bedeutet, mit Ressourcen richtig umzugehen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  R B Engineering AGrbeag.comHQ: Brugg, SwitzerlandReported employees: 51-200 | Brugg, Switzerland | 51-200 | Exact match | 64 contacts → |
“Als führendes Ingenieurunternehmen sind wir in allen Gebäudetechnikgebieten zu Hause.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Weinmann-Energies SAweinmann-energies.chHQ: Echallens, SwitzerlandReported employees: 51-200 | Echallens, Switzerland | 51-200 | Exact match | 52 contacts → |
“Weinmann-Energies est un bureau d’ingénieurs-conseils EPFL-SIA-SuisseIng.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Ista Swiss AGista-swiss.chHQ: Oftringen, SwitzerlandReported employees: 51-200 | Oftringen, Switzerland | 51-200 | Exact match | 41 contacts → |
“Die ista swiss ag ist seit 1973 eine führende Immobiliendienstleisterin in der Schweiz und spezialisiert auf intelligente Lösungen im Energie- und Ressourcenmanagement.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Lemon Consult AGlemonconsult.chHQ: Zürich, SwitzerlandReported employees: 11-50 | Zürich, Switzerland | 11-50 | Exact match | 38 contacts → |
“Lemon Consult is a specialized engineering and consulting office for energy efficiency, sustainability and renewable energies in the area of building and technical systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | HQ: Zürich, SwitzerlandReported employees: 51-200 | Zürich, Switzerland | 51-200 | Exact match | 32 contacts → |
“Seit 2001 bieten wir unseren Teilnehmern unter der Einhaltung von Energieträger- und Produkteneutralität einen Rund-um-Service im Energie-Management mit bewährten und von Behörden…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Tecnoservice Engineering SAtecnoservice.chHQ: Fribourg, SwitzerlandReported employees: 51-200 | Fribourg, Switzerland | 51-200 | Exact match | 31 contacts → |
“TECNOSERVICE ENGINEERING SA est un bureau d’études et d’ingénieurs conseils pour les installations techniques et études énergétiques liées au bâtiment et à l’industrie.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Durena AGdurena.chHQ: Lenzburg, SwitzerlandReported employees: 11-50 | Lenzburg, Switzerland | 11-50 | Exact match | 29 contacts → |
“Unserem Ingenieurunternehmen ist es ein grosses Anliegen, individuell und persönlich auf Ihre Wünsche einzugehen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Energa SAenerga.chHQ: Lausanne, SwitzerlandReported employees: 11-50 | Lausanne, Switzerland | 11-50 | Exact match | 29 contacts → |
“Situé à Yverdon-les-Bains et à Lausanne, ENERGA SA est un bureau d’ingénieurs-conseils EPFL-SIA actif sur l’ensemble de la Suisse romande.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Weisskopf Partner Gmbhweisskopf-partner.chHQ: Zürich, SwitzerlandReported employees: 11-50 | Zürich, Switzerland | 11-50 | Exact match | 27 contacts → |
“Die Steigerung von Energieeffizienz und den Einsatz von erneuerbaren Energien verfolgen wir mit Herzblut.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Enastra AGenastra.chHQ: Zurich, SwitzerlandReported employees: 11-50 | Zurich, Switzerland | 11-50 | Exact match | 25 contacts → |
“Das Vernetzen der Fachgebiete Strategie & Konzept, Bauherrentreuhand, Energiecontrolling und Nebenkosten ist das Fundament unserer Kernkompetenz.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  AZ Ingénieurs SAazingenieurs.chHQ: Lausanne 10, SwitzerlandReported employees: 11-50 | Lausanne 10, Switzerland | 11-50 | Exact match | 25 contacts → |
“La marque az ingénieurs regroupe des sociétés privées réunissant des ingénieurs-conseils dans les domaines de l'énergie, de la sécurité et des installations techniques pour le…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  ID GO Management SAidgo.chHQ: Morges, SwitzerlandReported employees: 11-50 | Morges, Switzerland | 11-50 | Exact match | 21 contacts → |
“ID GO Management SA est une société de services, alliant des compétences uniques à la croisée de l’énergie, la physique du bâtiment et l’architecture pour mettre en œuvre la…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Alfacel AGalfacel.chHQ: Cham, SwitzerlandReported employees: 11-50 | Cham, Switzerland | 11-50 | Exact match | 20 contacts → |
“Intelligente Gebäudeoptimierung Willkommen bei Alfacel - einem der schweizweit führenden Ingenieurbüros auf dem Gebiet der Gebäudeautomation und Energieoptimierung.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Ingenieurbüro IEM AGiem.chHQ: Thun, SwitzerlandReported employees: 11-50 | Thun, Switzerland | 11-50 | Exact match | 19 contacts → |
“Wir sind ein national tätiges, anerkanntes Ingenieurbüro für Energie- und Gebäudetechnikplanungen, führend in unseren Kompetenzen und Dienstleistungen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Adolf Krebs AGadolfkrebs.chHQ: Thun, SwitzerlandReported employees: 51-200 | Thun, Switzerland | 51-200 | Exact match | 19 contacts → |
“Aber ebenso viel mit harten Kalkulationen, Energiemanagement, mit Wissen, was zu tun ist.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  PIC Energies SApic-energies.chHQ: Geneva, SwitzerlandReported employees: 11-50 | Geneva, Switzerland | 11-50 | Exact match | 18 contacts → |
“Le bureau est actif dans les domaines de l’énergétique des bâtiments, du chauffage, de la ventilation, de la climatisation et du sanitaire.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  PPLUSpplus.chHQ: Neuchâtel, SwitzerlandReported employees: 11-50 | Neuchâtel, Switzerland | 11-50 | Exact match | 18 contacts → |
“PPLUS est un bureau d’ingénieurs qui propose des prestations spécialisées dans le génie de l’environnement, la physique du bâtiment et l’énergie.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Sorane SAsorane.chHQ: Lausanne, SwitzerlandReported employees: 11-50 | Lausanne, Switzerland | 11-50 | Exact match | 18 contacts → |
“SORANE SA est une société spécialisée dans la conception énergétique des bâtiments et des systèmes.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  SB Technique SAsbtechnique.chHQ: Geneva, SwitzerlandReported employees: 11-50 | Geneva, Switzerland | 11-50 | Exact match | 17 contacts → |
“SB technique est un bureau d'Ingénieur Conseil en chauffage, ventilation, climatisation et sécurité du bâtiment développant des concepts énergétiques ambitieux pour des…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  NBG Ingenieure AGnbg.chHQ: Bern, SwitzerlandReported employees: 11-50 | Bern, Switzerland | 11-50 | Exact match | 17 contacts → |
“Firma: Seit 1982 ist NBG Ingenieure AG eine unabhängige Aktiengesellschaft, die ihre Kunden zu allen Energie- und Technikfragen beim Bau und der Sanierung grosser Gebäude berät.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Actemium Romandieactemium.chHQ: Porrentruy, SwitzerlandReported employees: 11-50 | Porrentruy, Switzerland | 11-50 | Exact match | 16 contacts → |
“Actemium Romandie réalise des prestations d'ingénierie en Automation, Industrial IT, efficience energétique, génie électrique, Instrumentation pour l'industrie du process des…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Kalt Halbeisen Ingenieurbüro AGkalthalbeisen.chHQ: Zürich, SwitzerlandReported employees: 51-200 | Zürich, Switzerland | 51-200 | Exact match | 16 contacts → |
“Wir sind ein erfolgreiches Ingenieur, Planungs- und Beratungsunternehmen im Bereich der Energie- und Gebäudetechnik.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  DM Energieberatung AGdmeag.chHQ: Brugg, SwitzerlandReported employees: 11-50 | Brugg, Switzerland | 11-50 | Exact match | 15 contacts → |
“DM Energieberatung AG is a renewables & environment company based out of Paradiesstrasse 5, Brugg, Aargau, Switzerland.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Enerplan AGenerplan-ag.chHQ: Ostermundigen, SwitzerlandReported employees: 11-50 | Ostermundigen, Switzerland | 11-50 | Exact match | 15 contacts → |
“Wir sind ein Ingenieurbüro für Haus- Energie- und Gebäudetechnik und sind seit 1981 in Bern, Solothurn, Olten und Zürich tätig.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 234 company matches
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Energy efficiency engineering companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
226 records in the displayed employee bands.
8 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 234 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for energy efficiency engineering companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many energy efficiency engineering companies did RevenueBase find based in Switzerland?
The saved snapshot records 234 matching company records, 2,058 tracked contacts and 1,037 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Energy efficiency engineering companies by geography
- Energy efficiency engineering companies based in Sydney, Australia
- Energy efficiency engineering companies based in Sao Paulo, Brazil
- Energy efficiency engineering companies based in Calgary, Canada
- Energy efficiency engineering companies based in Montreal, Canada
- Energy efficiency engineering companies based in Toronto, Canada
- Energy efficiency engineering companies based in Lyon, France
- Energy efficiency engineering companies based in Paris, France
- Energy efficiency engineering companies based in Toulouse, France
- Energy efficiency engineering companies based in Berlin, Germany
- Energy efficiency engineering companies based in Hamburg, Germany
- Energy efficiency engineering companies based in Munich, Germany
- Energy efficiency engineering companies based in Milan, Italy
Cite this list
RevenueBase Data Team. Top 25 energy efficiency engineering companies based in Switzerland. Snapshot: November 6, 2026. https://revenuebase.ai/companies/energy-efficiency-engineering-companies/switzerland.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Energy efficiency engineering companies based in Sydney, Australia
- Energy efficiency engineering companies based in Sao Paulo, Brazil
- Energy efficiency engineering companies based in Calgary, Canada
- Energy efficiency engineering companies based in Montreal, Canada
- Energy efficiency engineering companies based in Toronto, Canada
- Energy efficiency engineering companies based in Lyon, France
Company intelligence · public preview
Top 25 energy efficiency engineering companies based in Switzerland
RevenueBase records 234 matching company records for energy efficiency engineering companies based in Switzerland, with 2,058 tracked contacts and 1,037 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 energy efficiency engineering companies based in Switzerland
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Amstein Walthertamstein-walthert.ch HQ: Zurich, SwitzerlandReported employees: 1,001-5,000 | Zurich, Switzerland | 1,001-5,000 | Exact match | 571 contacts → |
“Ü Ingenieurskunst bedeutet, mit Ressourcen richtig umzugehen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | R B Engineering AGrbeag.com HQ: Brugg, SwitzerlandReported employees: 51-200 | Brugg, Switzerland | 51-200 | Exact match | 64 contacts → |
“Als führendes Ingenieurunternehmen sind wir in allen Gebäudetechnikgebieten zu Hause.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Weinmann-Energies SAweinmann-energies.ch HQ: Echallens, SwitzerlandReported employees: 51-200 | Echallens, Switzerland | 51-200 | Exact match | 52 contacts → |
“Weinmann-Energies est un bureau d’ingénieurs-conseils EPFL-SIA-SuisseIng.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Ista Swiss AGista-swiss.ch HQ: Oftringen, SwitzerlandReported employees: 51-200 | Oftringen, Switzerland | 51-200 | Exact match | 41 contacts → |
“Die ista swiss ag ist seit 1973 eine führende Immobiliendienstleisterin in der Schweiz und spezialisiert auf intelligente Lösungen im Energie- und Ressourcenmanagement.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Lemon Consult AGlemonconsult.ch HQ: Zürich, SwitzerlandReported employees: 11-50 | Zürich, Switzerland | 11-50 | Exact match | 38 contacts → |
“Lemon Consult is a specialized engineering and consulting office for energy efficiency, sustainability and renewable energies in the area of building and technical systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | HQ: Zürich, SwitzerlandReported employees: 51-200 | Zürich, Switzerland | 51-200 | Exact match | 32 contacts → |
“Seit 2001 bieten wir unseren Teilnehmern unter der Einhaltung von Energieträger- und Produkteneutralität einen Rund-um-Service im Energie-Management mit bewährten und von Behörden…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Tecnoservice Engineering SAtecnoservice.ch HQ: Fribourg, SwitzerlandReported employees: 51-200 | Fribourg, Switzerland | 51-200 | Exact match | 31 contacts → |
“TECNOSERVICE ENGINEERING SA est un bureau d’études et d’ingénieurs conseils pour les installations techniques et études énergétiques liées au bâtiment et à l’industrie.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Durena AGdurena.ch HQ: Lenzburg, SwitzerlandReported employees: 11-50 | Lenzburg, Switzerland | 11-50 | Exact match | 29 contacts → |
“Unserem Ingenieurunternehmen ist es ein grosses Anliegen, individuell und persönlich auf Ihre Wünsche einzugehen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Energa SAenerga.ch HQ: Lausanne, SwitzerlandReported employees: 11-50 | Lausanne, Switzerland | 11-50 | Exact match | 29 contacts → |
“Situé à Yverdon-les-Bains et à Lausanne, ENERGA SA est un bureau d’ingénieurs-conseils EPFL-SIA actif sur l’ensemble de la Suisse romande.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Weisskopf Partner Gmbhweisskopf-partner.ch HQ: Zürich, SwitzerlandReported employees: 11-50 | Zürich, Switzerland | 11-50 | Exact match | 27 contacts → |
“Die Steigerung von Energieeffizienz und den Einsatz von erneuerbaren Energien verfolgen wir mit Herzblut.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Enastra AGenastra.ch HQ: Zurich, SwitzerlandReported employees: 11-50 | Zurich, Switzerland | 11-50 | Exact match | 25 contacts → |
“Das Vernetzen der Fachgebiete Strategie & Konzept, Bauherrentreuhand, Energiecontrolling und Nebenkosten ist das Fundament unserer Kernkompetenz.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | AZ Ingénieurs SAazingenieurs.ch HQ: Lausanne 10, SwitzerlandReported employees: 11-50 | Lausanne 10, Switzerland | 11-50 | Exact match | 25 contacts → |
“La marque az ingénieurs regroupe des sociétés privées réunissant des ingénieurs-conseils dans les domaines de l'énergie, de la sécurité et des installations techniques pour le…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | ID GO Management SAidgo.ch HQ: Morges, SwitzerlandReported employees: 11-50 | Morges, Switzerland | 11-50 | Exact match | 21 contacts → |
“ID GO Management SA est une société de services, alliant des compétences uniques à la croisée de l’énergie, la physique du bâtiment et l’architecture pour mettre en œuvre la…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Alfacel AGalfacel.ch HQ: Cham, SwitzerlandReported employees: 11-50 | Cham, Switzerland | 11-50 | Exact match | 20 contacts → |
“Intelligente Gebäudeoptimierung Willkommen bei Alfacel - einem der schweizweit führenden Ingenieurbüros auf dem Gebiet der Gebäudeautomation und Energieoptimierung.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ingenieurbüro IEM AGiem.ch HQ: Thun, SwitzerlandReported employees: 11-50 | Thun, Switzerland | 11-50 | Exact match | 19 contacts → |
“Wir sind ein national tätiges, anerkanntes Ingenieurbüro für Energie- und Gebäudetechnikplanungen, führend in unseren Kompetenzen und Dienstleistungen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Adolf Krebs AGadolfkrebs.ch HQ: Thun, SwitzerlandReported employees: 51-200 | Thun, Switzerland | 51-200 | Exact match | 19 contacts → |
“Aber ebenso viel mit harten Kalkulationen, Energiemanagement, mit Wissen, was zu tun ist.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | PIC Energies SApic-energies.ch HQ: Geneva, SwitzerlandReported employees: 11-50 | Geneva, Switzerland | 11-50 | Exact match | 18 contacts → |
“Le bureau est actif dans les domaines de l’énergétique des bâtiments, du chauffage, de la ventilation, de la climatisation et du sanitaire.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | PPLUSpplus.ch HQ: Neuchâtel, SwitzerlandReported employees: 11-50 | Neuchâtel, Switzerland | 11-50 | Exact match | 18 contacts → |
“PPLUS est un bureau d’ingénieurs qui propose des prestations spécialisées dans le génie de l’environnement, la physique du bâtiment et l’énergie.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Sorane SAsorane.ch HQ: Lausanne, SwitzerlandReported employees: 11-50 | Lausanne, Switzerland | 11-50 | Exact match | 18 contacts → |
“SORANE SA est une société spécialisée dans la conception énergétique des bâtiments et des systèmes.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | SB Technique SAsbtechnique.ch HQ: Geneva, SwitzerlandReported employees: 11-50 | Geneva, Switzerland | 11-50 | Exact match | 17 contacts → |
“SB technique est un bureau d'Ingénieur Conseil en chauffage, ventilation, climatisation et sécurité du bâtiment développant des concepts énergétiques ambitieux pour des…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | NBG Ingenieure AGnbg.ch HQ: Bern, SwitzerlandReported employees: 11-50 | Bern, Switzerland | 11-50 | Exact match | 17 contacts → |
“Firma: Seit 1982 ist NBG Ingenieure AG eine unabhängige Aktiengesellschaft, die ihre Kunden zu allen Energie- und Technikfragen beim Bau und der Sanierung grosser Gebäude berät.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Actemium Romandieactemium.ch HQ: Porrentruy, SwitzerlandReported employees: 11-50 | Porrentruy, Switzerland | 11-50 | Exact match | 16 contacts → |
“Actemium Romandie réalise des prestations d'ingénierie en Automation, Industrial IT, efficience energétique, génie électrique, Instrumentation pour l'industrie du process des…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Kalt Halbeisen Ingenieurbüro AGkalthalbeisen.ch HQ: Zürich, SwitzerlandReported employees: 51-200 | Zürich, Switzerland | 51-200 | Exact match | 16 contacts → |
“Wir sind ein erfolgreiches Ingenieur, Planungs- und Beratungsunternehmen im Bereich der Energie- und Gebäudetechnik.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | DM Energieberatung AGdmeag.ch HQ: Brugg, SwitzerlandReported employees: 11-50 | Brugg, Switzerland | 11-50 | Exact match | 15 contacts → |
“DM Energieberatung AG is a renewables & environment company based out of Paradiesstrasse 5, Brugg, Aargau, Switzerland.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Enerplan AGenerplan-ag.ch HQ: Ostermundigen, SwitzerlandReported employees: 11-50 | Ostermundigen, Switzerland | 11-50 | Exact match | 15 contacts → |
“Wir sind ein Ingenieurbüro für Haus- Energie- und Gebäudetechnik und sind seit 1981 in Bern, Solothurn, Olten und Zürich tätig.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 234 company matches
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Energy efficiency engineering companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
226 records in the displayed employee bands.
8 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 234 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for energy efficiency engineering companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many energy efficiency engineering companies did RevenueBase find based in Switzerland?
The saved snapshot records 234 matching company records, 2,058 tracked contacts and 1,037 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Energy efficiency engineering companies by geography
- Energy efficiency engineering companies based in Sydney, Australia
- Energy efficiency engineering companies based in Sao Paulo, Brazil
- Energy efficiency engineering companies based in Calgary, Canada
- Energy efficiency engineering companies based in Montreal, Canada
- Energy efficiency engineering companies based in Toronto, Canada
- Energy efficiency engineering companies based in Lyon, France
- Energy efficiency engineering companies based in Paris, France
- Energy efficiency engineering companies based in Toulouse, France
- Energy efficiency engineering companies based in Berlin, Germany
- Energy efficiency engineering companies based in Hamburg, Germany
- Energy efficiency engineering companies based in Munich, Germany
- Energy efficiency engineering companies based in Milan, Italy
Cite this list
RevenueBase Data Team. Top 25 energy efficiency engineering companies based in Switzerland. Snapshot: November 6, 2026. https://revenuebase.ai/companies/energy-efficiency-engineering-companies/switzerland.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Energy efficiency engineering companies based in Sydney, Australia
- Energy efficiency engineering companies based in Sao Paulo, Brazil
- Energy efficiency engineering companies based in Calgary, Canada
- Energy efficiency engineering companies based in Montreal, Canada
- Energy efficiency engineering companies based in Toronto, Canada
- Energy efficiency engineering companies based in Lyon, France