Company lists · Data refreshed September 2026
Top 25 Passive house builders worldwide
RevenueBase identified 1,445 passive house builders worldwide as of September 2026 and tracks 6,324 professional contacts across them, including 1,789 with verified work emails. The United States is the largest market and London the largest hub.
This list covers passive house builders worldwide, 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 20, 2026. Country and city lists for passive house builders follow the table.
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 passive house builders worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 267 contacts → | ||||
Indirect evidence “Créé en 1972 par Marcel Tréguer, le Groupe Trécobat est le leader la maison BBC (Bâtiment Basse Consommation).” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 235 contacts → | ||||
Indirect evidence “Barratt London is a leading London residential developer and part of Barratt Redrow plc, the UK’s largest housebuilder and a FTSE 100 company.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 96 contacts → | ||||
Partial evidence “We are LOBE Group, a company spearheading the real estate sector that is at the forefront of energy efficiency thanks to Passivhaus certified construction.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 83 contacts → | ||||
Indirect evidence “IdeaStructura suunnittelee pitkäikäisiä, laadukkaita ja energiatehokkaita rakennuksia.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 72 contacts → | ||||
Indirect evidence “Solares Bauen est un bureau d’étude fluides, thermique et environnement dans le bâtiment créée en 2005 à Strasbourg.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 69 contacts → | ||||
Indirect evidence “Missie Bostoen Group wil op een no nonsense manier haar maatschappelijke verantwoordelijkheid nemen voor een betere wereld voor onze kinderen en kleinkinderen, door het wonen CO²…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 65 contacts → | ||||
Indirect evidence “At 21 Degrees, we believe buildings should be designed for lower energy use, healthier spaces and better comfort.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 64 contacts → | ||||
Indirect evidence “We design and project the most modern energy-efficient buildings in 3D and BIM with minimal operating costs.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 51 contacts → | ||||
Indirect evidence “Ultra-efficient.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 48 contacts → | ||||
Indirect evidence “A2M is an international practice driven by an ardent belief in the possibilities of modern architecture and a keen curiosity about building physics, our interdisciplinary team…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 45 contacts → | ||||
Indirect evidence “Wir entwickeln energieeffiziente Gebäude und klimaneutrale Quartiere für die Zukunft.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 44 contacts → | ||||
Indirect evidence “Beracah Homes, Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 43 contacts → | ||||
Indirect evidence “Budujemy energooszczędne domy jednorodzinne, które minimalizują Twoje rachunki i maksymalizują komfort życia.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 42 contacts → | ||||
Indirect evidence “Der Generalplaner für nachhaltiges Bauen & Sanieren Wir sind Ihr unabhängiger Partner für Energieberatung, Fördermittelmanagement und die energieeffiziente Planung und Umsetzung…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 37 contacts → | ||||
Partial evidence “House Habitat construye casas saludables y eficientes energéticamente, con estructura de madera, basadas en la arquitectura bioclimática, siguiendo los criterios del estándar…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 35 contacts → | ||||
Indirect evidence “Bureau d'Etudes en Design Energétique du Bâtiment, MK Engineering s'est forgé une solide expérience en conception très basse énergie avec ses services de Conseil aux Architecte et…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 35 contacts → | ||||
Strong evidence “475’s mission is to lead a transformation of the North American construction industry toward making durable high-performance, Passive House and zero-energy buildings.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 33 contacts → | ||||
Indirect evidence “As a trusted, family-run timber frame company based in the South East, we proudly serve clients across the UK.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 31 contacts → | ||||
Indirect evidence “Hygge is an architectural engineering consulting company founded in Curitiba, Brazil that aims to deliver healthy, sustainable and energy efficient buildings.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 30 contacts → | ||||
Indirect evidence “Ecotope has provided sustainable building design consulting and engineering services in the Pacific Northwest for over 40 years.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 27 contacts → | ||||
Indirect evidence “HAYCON is design | build company located in Boston.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 27 contacts → | ||||
Indirect evidence “Energiezuinige kwaliteitswoningen in houtskeletbouw.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 27 contacts → | ||||
Indirect evidence “PEP es una asociación sin ánimo de lucro que engloba a más de 950 profesionales, empresas y personas con inquietudes y conocimientos en el campo de la edificación energéticamente…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 25 contacts → | ||||
Indirect evidence “gcp is an employee-owned chartered architectural practice and energy consultancy based in Bristol.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 24 contacts → | ||||
Partial evidence “EUROMAC2 est un leader européen des matériaux de gros œuvre pour la construction passive depuis 1976 avec plus de projets.” Source: RevenueBase Database · checked Sep 20, 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: passive house builders. 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 passive house builders.
- Partial evidence
- Its own public description names part of passive house builders, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name passive house builders. 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 1,445 passive house builders worldwide
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Passive house builders worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 passive house builders, 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.
- Coverage
- Every country. Country and city lists for passive house builders are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “passive house builders”. 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 passive house builders), 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 passive house builders, and records with no verified work email.
- 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, 1,789 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 20, 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.
Passive house builders by location
10 lists · largest firstEvery Passive house builders list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Passive house builders based in the United States153
- Passive house builders based in Germany151
- Passive house builders based in Spain151
- Passive house builders based in the United Kingdom145
- Passive house builders based in France114
- Passive house builders based in Australia84
- Passive house builders based in Canada59
- Passive house builders based in Belgium53
- Passive house builders based in the Netherlands31
- Passive house builders based in New Zealand29
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 passive house builders, 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 passive house builders are there worldwide?
RevenueBase identified 1,445 passive house builders worldwide 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?
Trecobat Groupe, headquartered in Lannilis, tops this list with the largest team on record.
Which country has the most passive house builders?
The United States leads with 153 companies, followed by Germany (151) and Spain (151). Every passive house builders list by country and city is linked on this page.
Which city has the most passive house builders?
London leads with 25 headquartered companies, followed by Barcelona (18) and Madrid (16).
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 1,789 verified decision-maker contacts tracked across these 1,445 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 20, 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.