Company lists · Data refreshed October 2026
Top 9 Energy efficiency engineering consultants based in Cologne, Germany
RevenueBase identified 26 company matches for energy efficiency engineering consultants associated with Cologne, Germany as of October 2026 and tracks 143 professional contacts across them, including 34 with verified work emails. Across Germany, Berlin is the largest hub for this category (97 companies); Cologne has 26.
This list covers company matches for energy efficiency engineering consultants associated with Cologne, Germany, 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 October 12, 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 9 largest energy efficiency engineering consultants based in Cologne, Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 16 contacts → | ||||
Exact match “We are a consulting firm for energy utilities, energy-intensive industries and energy policy.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 2 | 12 contacts → | ||||
Exact match “MorgenGrün – Innovationen von ZWP Wir wollen vor allem eines: mit der Kraft von Innovationen Gebäude und Liegenschaften so gestalten, dass sie langfristig unserer ökologischen und…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 3 | 8 contacts → | ||||
Exact match “Bauphysik, Innovative Haustechnik, Regenerative Energien, Energiecontrolling energiebüro vom Stein verbindet Kompetenzen der Bauphysik, Haustechnik und Energietechnologie zu…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 4 | 5 contacts → | ||||
Exact match “Die M-TEQ GmbH ist ein unabhängiges Planungsbüro für die Technische Gebäudeausrüstung.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 5 | 4 contacts → | ||||
Exact match “Wir sind ein Planungsbüro für die techn.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 6 | 3 contacts → | ||||
Exact match “Viele Organisationen sprechen über Nachhaltigkeit.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 7 | 2 contacts → | ||||
Exact match “teo sorgt als Berater und Fachingenieur für optimal funktionierende und sparsame Gebäudetechnik und begleitet gewerbliche Kund*innen auf dem Weg in die Energiewende.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 8 | 2 contacts → | ||||
Exact match “Wir bieten maßgeschneiderte Lösungen zur Senkung Ihrer Energiekosten.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 9 | 1 contacts → | ||||
Exact match “Mit uns planen.” Recorded in the RevenueBase company graph · Oct 12, 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 consultants”. 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 9 of 26 energy efficiency engineering consultants based in Cologne, Germany
See the full list, filter by size, metro and specialty, and access 34 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Energy efficiency engineering consultants based in Cologne, Germany at a glance
As of Oct 12, 2026Companies by employee count
Email recency for this list is measured across the whole Germany list rather than for Cologne, so it is reported there. Company counts and contact totals on this page are exact for Cologne, over 26 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 Cologne, Germany whose business descriptions match “energy efficiency engineering consultants” 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 34 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 October 12, 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.
Energy efficiency engineering consultants by metro in Germany
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 consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many energy efficiency engineering consultants are there based in Cologne, Germany?
RevenueBase identified 26 company matches for energy efficiency engineering consultants associated with Cologne, Germany as of October 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?
R2b Energy Consulting Gmbh tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in Germany has the most energy efficiency engineering consultants?
Berlin leads Germany with 97 company records, followed by Hamburg (49) and Munich (45). Cologne has 26.
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 34 professional contacts with verified work emails tracked across these 26 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 October 12, 2026.
Ready to reach these companies? Verified emails and direct dials for all 26 energy efficiency engineering consultants based in Cologne, Germany. 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 9 energy efficiency engineering consultants based in Cologne, Germany
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 26 matching company records for energy efficiency engineering consultants based in Cologne, Germany, with 143 tracked contacts and 34 verified work emails.
This public preview shows 9 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 12, 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 9 energy efficiency engineering consultants based in Cologne, Germany
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 |  R2b Energy Consulting Gmbhr2b-energy.comHQ: Cologne, GermanyReported employees: 11-50 | Cologne, Germany | 11-50 | Exact match | 16 contacts → |
“We are a consulting firm for energy utilities, energy-intensive industries and energy policy.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Morgengrünmorgengruen.ingHQ: Cologne, GermanyReported employees: 11-50 | Cologne, Germany | 11-50 | Exact match | 12 contacts → |
“MorgenGrün – Innovationen von ZWP Wir wollen vor allem eines: mit der Kraft von Innovationen Gebäude und Liegenschaften so gestalten, dass sie langfristig unserer ökologischen und…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Energiebüro VOM Stein Gmbhenergiebuero-vomstein.deHQ: Cologne, GermanyReported employees: 11-50 | Cologne, Germany | 11-50 | Exact match | 8 contacts → |
“Bauphysik, Innovative Haustechnik, Regenerative Energien, Energiecontrolling energiebüro vom Stein verbindet Kompetenzen der Bauphysik, Haustechnik und Energietechnologie zu…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  M-Teq Gmbhm-teq.deHQ: Cologne, GermanyReported employees: 11-50 | Cologne, Germany | 11-50 | Exact match | 5 contacts → |
“Die M-TEQ GmbH ist ein unabhängiges Planungsbüro für die Technische Gebäudeausrüstung.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Diaelectricumdiaelectricum.deHQ: Cologne, GermanyReported employees: 1-10 | Cologne, Germany | 1-10 | Exact match | 4 contacts → |
“Wir sind ein Planungsbüro für die techn.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Grünkern Consultinggruenkern-consulting.de HQ: Cologne, GermanyReported employees: 1-10 | Cologne, Germany | 1-10 | Exact match | 3 contacts → |
“Viele Organisationen sprechen über Nachhaltigkeit.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  TEOteo-services.deHQ: Cologne, GermanyReported employees: 1-10 | Cologne, Germany | 1-10 | Exact match | 2 contacts → |
“teo sorgt als Berater und Fachingenieur für optimal funktionierende und sparsame Gebäudetechnik und begleitet gewerbliche Kund*innen auf dem Weg in die Energiewende.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Energieberatung Gromollenergieberatung-gromoll.comHQ: Cologne, GermanyReported employees: 1-10 | Cologne, Germany | 1-10 | Exact match | 2 contacts → |
“Wir bieten maßgeschneiderte Lösungen zur Senkung Ihrer Energiekosten.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Ifes Gmbh Kölnifes-koeln.deHQ: Cologne, GermanyReported employees: 11-50 | Cologne, Germany | 11-50 | Exact match | 1 contacts → |
“Mit uns planen.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 9 of 26 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
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Energy efficiency engineering consultants: dataset insights
October 12, 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
26 records in the displayed employee bands.
0 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 across the whole Germany list rather than for Cologne, so it is reported there. Company counts and contact totals on this page are exact for Cologne, over 26 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: October 12, 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 ↗
Energy efficiency engineering consultants by metro in Germany
Questions about this company list
What does Exact match mean for energy efficiency engineering consultants?
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 consultants did RevenueBase find based in Cologne, Germany?
The saved snapshot records 26 matching company records, 143 tracked contacts and 34 verified emails. The public preview displays 9 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: October 12, 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 consultants by geography
- Energy efficiency engineering consultants based in Melbourne, Australia
- Energy efficiency engineering consultants based in Sydney, Australia
- Energy efficiency engineering consultants based in Vienna, Austria
- Energy efficiency engineering consultants based in Rio De Janeiro, Brazil
- Energy efficiency engineering consultants based in Sao Paulo, Brazil
- Energy efficiency engineering consultants based in Calgary, Canada
- Energy efficiency engineering consultants based in Montreal, Canada
- Energy efficiency engineering consultants based in Toronto, Canada
- Energy efficiency engineering consultants based in Vancouver, Canada
- Energy efficiency engineering consultants based in Santiago, Chile
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Cite this list
RevenueBase Data Team. Top 9 energy efficiency engineering consultants based in Cologne, Germany. Snapshot: October 12, 2026. https://revenuebase.ai/companies/energy-efficiency-engineering-consultants/germany/cologne.
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 consultants based in Melbourne, Australia
- Energy efficiency engineering consultants based in Sydney, Australia
- Energy efficiency engineering consultants based in Vienna, Austria
- Energy efficiency engineering consultants based in Rio De Janeiro, Brazil
- Energy efficiency engineering consultants based in Sao Paulo, Brazil
- Energy efficiency engineering consultants based in Calgary, Canada
Company intelligence · public preview
Top 9 energy efficiency engineering consultants based in Cologne, Germany
RevenueBase records 26 matching company records for energy efficiency engineering consultants based in Cologne, Germany, with 143 tracked contacts and 34 verified work emails.
This public preview shows 9 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 12, 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 9 energy efficiency engineering consultants based in Cologne, Germany
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 | R2b Energy Consulting Gmbhr2b-energy.com HQ: Cologne, GermanyReported employees: 11-50 | Cologne, Germany | 11-50 | Exact match | 16 contacts → |
“We are a consulting firm for energy utilities, energy-intensive industries and energy policy.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Morgengrünmorgengruen.ing HQ: Cologne, GermanyReported employees: 11-50 | Cologne, Germany | 11-50 | Exact match | 12 contacts → |
“MorgenGrün – Innovationen von ZWP Wir wollen vor allem eines: mit der Kraft von Innovationen Gebäude und Liegenschaften so gestalten, dass sie langfristig unserer ökologischen und…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Energiebüro VOM Stein Gmbhenergiebuero-vomstein.de HQ: Cologne, GermanyReported employees: 11-50 | Cologne, Germany | 11-50 | Exact match | 8 contacts → |
“Bauphysik, Innovative Haustechnik, Regenerative Energien, Energiecontrolling energiebüro vom Stein verbindet Kompetenzen der Bauphysik, Haustechnik und Energietechnologie zu…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | M-Teq Gmbhm-teq.de HQ: Cologne, GermanyReported employees: 11-50 | Cologne, Germany | 11-50 | Exact match | 5 contacts → |
“Die M-TEQ GmbH ist ein unabhängiges Planungsbüro für die Technische Gebäudeausrüstung.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Diaelectricumdiaelectricum.de HQ: Cologne, GermanyReported employees: 1-10 | Cologne, Germany | 1-10 | Exact match | 4 contacts → |
“Wir sind ein Planungsbüro für die techn.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Grünkern Consultinggruenkern-consulting.de HQ: Cologne, GermanyReported employees: 1-10 | Cologne, Germany | 1-10 | Exact match | 3 contacts → |
“Viele Organisationen sprechen über Nachhaltigkeit.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | TEOteo-services.de HQ: Cologne, GermanyReported employees: 1-10 | Cologne, Germany | 1-10 | Exact match | 2 contacts → |
“teo sorgt als Berater und Fachingenieur für optimal funktionierende und sparsame Gebäudetechnik und begleitet gewerbliche Kund*innen auf dem Weg in die Energiewende.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Energieberatung Gromollenergieberatung-gromoll.com HQ: Cologne, GermanyReported employees: 1-10 | Cologne, Germany | 1-10 | Exact match | 2 contacts → |
“Wir bieten maßgeschneiderte Lösungen zur Senkung Ihrer Energiekosten.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Ifes Gmbh Kölnifes-koeln.de HQ: Cologne, GermanyReported employees: 11-50 | Cologne, Germany | 11-50 | Exact match | 1 contacts → |
“Mit uns planen.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 9 of 26 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Energy efficiency engineering consultants: dataset insights
October 12, 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
26 records in the displayed employee bands.
0 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 across the whole Germany list rather than for Cologne, so it is reported there. Company counts and contact totals on this page are exact for Cologne, over 26 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: October 12, 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 ↗
Energy efficiency engineering consultants by metro in Germany
Questions about this company list
What does Exact match mean for energy efficiency engineering consultants?
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 consultants did RevenueBase find based in Cologne, Germany?
The saved snapshot records 26 matching company records, 143 tracked contacts and 34 verified emails. The public preview displays 9 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: October 12, 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 consultants by geography
- Energy efficiency engineering consultants based in Melbourne, Australia
- Energy efficiency engineering consultants based in Sydney, Australia
- Energy efficiency engineering consultants based in Vienna, Austria
- Energy efficiency engineering consultants based in Rio De Janeiro, Brazil
- Energy efficiency engineering consultants based in Sao Paulo, Brazil
- Energy efficiency engineering consultants based in Calgary, Canada
- Energy efficiency engineering consultants based in Montreal, Canada
- Energy efficiency engineering consultants based in Toronto, Canada
- Energy efficiency engineering consultants based in Vancouver, Canada
- Energy efficiency engineering consultants based in Santiago, Chile
- Energy efficiency engineering consultants based in Lyon, France
- Energy efficiency engineering consultants based in Paris, France
Cite this list
RevenueBase Data Team. Top 9 energy efficiency engineering consultants based in Cologne, Germany. Snapshot: October 12, 2026. https://revenuebase.ai/companies/energy-efficiency-engineering-consultants/germany/cologne.
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 consultants based in Melbourne, Australia
- Energy efficiency engineering consultants based in Sydney, Australia
- Energy efficiency engineering consultants based in Vienna, Austria
- Energy efficiency engineering consultants based in Rio De Janeiro, Brazil
- Energy efficiency engineering consultants based in Sao Paulo, Brazil
- Energy efficiency engineering consultants based in Calgary, Canada