Company lists · Data refreshed September 2026
Top 25 Passive house designers based in the United Kingdom
RevenueBase identified 172 company matches for passive house designers associated with the United Kingdom as of September 2026 and tracks 950 professional contacts across them, including 402 with verified work emails. London is the largest hub.
This list covers company matches for passive house designers associated with the United Kingdom, 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 September 20, 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 passive house designers based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 65 contacts → | ||||
Exact match “At 21 Degrees, we believe buildings should be designed for lower energy use, healthier spaces and better comfort.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 60 contacts → | ||||
Exact match “RSP Consulting Engineers LLP are leaders in sustainable and low energy building services design.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 42 contacts → | ||||
Exact match “Avonside Energy: Your Partner in Sustainable Building Solutions At Avonside Energy, we are dedicated to delivering best-in-class services across: New Build Insulation…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 34 contacts → | ||||
Exact match “FBM Architects believe that fantastic architecture makes a positive difference to people’s lives.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 25 contacts → | ||||
Exact match “gcp is an employee-owned chartered architectural practice and energy consultancy based in Bristol.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 23 contacts → | ||||
Exact match “MBC Timber Frame UK Ltd was established in 2002 in Tipperary, Ireland and in 2011 we sold our first passive house in the UK, since then we have concentrated our efforts in the…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 19 contacts → | ||||
Exact match “We're certified Passivhaus architects and conservation specialists.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 18 contacts → | ||||
Exact match “Eco Systems Group has been delivering high-quality insulation, retrofit, solar solutions & air source heat pumps across the commercial and residential sectors for over 13 years.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 18 contacts → | ||||
Exact match “Vector Design has achieved a reputation for high quality and value in an ever competitive and technically challenging market place.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 18 contacts → | ||||
Exact match “We're Beattie, a design and technology company that delivers Passivhaus and net zero solutions for the built environment.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 18 contacts → | ||||
Exact match “Design Me have a holistic, pro-active and innovative approach to low energy building services design, our expert understanding of building physics allows us to help design teams…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 15 contacts → | ||||
Exact match “Eco Design Consultants is an award-winning chartered architecture practice, specialise in Passivhaus both new build and retrofit.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 15 contacts → | ||||
Exact match “True North Group have a passion for sustainable living - we specialize in building eco-friendly and energy efficient passive housing with an unwavering commitment to environmental…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 14 contacts → | ||||
Exact match “Ecospheric, an award winning Passive House consultancy that supports planners, architects and developers in designing and delivering pioneering eco developments that save carbon…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 14 contacts → | ||||
Exact match “The Passivhaus Trust is an independent, non-profit organisation that provides leadership in the UK for the adoption of the Passivhaus standard and methodology.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 14 contacts → | ||||
Exact match “Eco-homes are healthier and more comfortable to live in, more economical to own, and have a far lower environmental impact.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 14 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 13 contacts → | ||||
Exact match “Total Home Environment can plan, select and install heat recovery ventilation, heat pump ventilation, compact service units and central vacuum systems to achieve the healthiest…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 13 contacts → | ||||
Exact match “The homes we live in as well as the new homes currently being built can be more efficient, more sustainable and we can get more value from them.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 12 contacts → | ||||
Exact match “Beyond Carbon Associates is a design and engineering consultancy founded in 2022 by Dr.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 12 contacts → | ||||
Exact match “Welcome to Leeds Environmental Design Associates (LEDA), a worker-owned cooperative of designers dedicated to creating great sustainable buildings that respect the environment and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 11 contacts → | ||||
Exact match “Traditional architects focus purely on design.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 11 contacts → | ||||
Exact match “We are Energy Consultants specialising in comfort and low energy buildings.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 10 contacts → | ||||
Exact match “PAUL Heat Recovery is a Scottish based company, which has become a specialist centre for highly efficient domestic ventilation solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 10 contacts → | ||||
Exact match “At Henriksen Studio, our mission is to enhance the performance of both new and existing buildings.” Recorded in the RevenueBase company graph · Sep 20, 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 “passive house designers”. 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 172 passive house designers based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 402 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Passive house designers based in the United Kingdom at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 172 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 the United Kingdom whose business descriptions match “passive house designers” 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 402 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 September 20, 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 “passive house designers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many passive house designers are there based in the United Kingdom?
RevenueBase identified 172 company matches for passive house designers associated with the United Kingdom as of September 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?
21 Degrees tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most passive house designers?
London leads with 25 company records, followed by Bristol (7) and Manchester (6).
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 402 professional contacts with verified work emails tracked across these 172 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 September 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 172 passive house designers based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Passive house designers by geography
- Passive house designers based in Australia
- Passive house designers based in Belgium
- Passive house designers based in Canada
- Passive house designers based in France
- Passive house designers based in Germany
- Passive house designers based in Italy
- Passive house designers based in the Netherlands
- Passive house designers based in New Zealand
- Passive house designers based in Spain
- Passive house designers based in Switzerland
- Passive house designers based in the United States
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.
More company lists
Company intelligence · public preview
Top 25 passive house designers based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 172 matching company records for passive house designers based in the United Kingdom, with 950 tracked contacts and 402 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: September 20, 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 passive house designers based in the United Kingdom
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 |  21 Degrees21degrees.comHQ: Nationwide, United KingdomReported employees: 201-500 | Nationwide, United Kingdom | 201-500 | Exact match | 65 contacts → |
“At 21 Degrees, we believe buildings should be designed for lower energy use, healthier spaces and better comfort.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  RSP Consulting Engineersrsp.netHQ: Edinburgh, United KingdomReported employees: 51-200 | Edinburgh, United Kingdom | 51-200 | Exact match | 60 contacts → |
“RSP Consulting Engineers LLP are leaders in sustainable and low energy building services design.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Avonside Energyavonsideenergy.co.ukHQ: Rearsby, United KingdomReported employees: 201-500 | Rearsby, United Kingdom | 201-500 | Exact match | 42 contacts → |
“Avonside Energy: Your Partner in Sustainable Building Solutions At Avonside Energy, we are dedicated to delivering best-in-class services across: New Build Insulation…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | FBM Architectsfbmarchitects.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 34 contacts → |
“FBM Architects believe that fantastic architecture makes a positive difference to people’s lives.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | GCP Chartered Architectsgcparch.co.uk HQ: Bristol, United KingdomReported employees: 11-50 | Bristol, United Kingdom | 11-50 | Exact match | 25 contacts → |
“gcp is an employee-owned chartered architectural practice and energy consultancy based in Bristol.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | MBC Timber Frame UK LTDmbctimberframe.co.uk HQ: Gloucester, United KingdomReported employees: 11-50 | Gloucester, United Kingdom | 11-50 | Exact match | 23 contacts → |
“MBC Timber Frame UK Ltd was established in 2002 in Tipperary, Ireland and in 2011 we sold our first passive house in the UK, since then we have concentrated our efforts in the…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Anotherkind Architectsakind-a.comHQ: Bingham, United KingdomReported employees: 11-50 | Bingham, United Kingdom | 11-50 | Exact match | 19 contacts → |
“We're certified Passivhaus architects and conservation specialists.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | ECO Systems Group LTDecosystemsgroup.co.uk HQ: Harold Wood, United KingdomReported employees: 51-200 | Harold Wood, United Kingdom | 51-200 | Exact match | 18 contacts → |
“Eco Systems Group has been delivering high-quality insulation, retrofit, solar solutions & air source heat pumps across the commercial and residential sectors for over 13 years.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Vector Designvectordesign.co.uk HQ: Stadhampton, United KingdomReported employees: 11-50 | Stadhampton, United Kingdom | 11-50 | Exact match | 18 contacts → |
“Vector Design has achieved a reputation for high quality and value in an ever competitive and technically challenging market place.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Beattiebeattiepassive.com HQ: Norwich, United KingdomReported employees: 1-10 | Norwich, United Kingdom | 1-10 | Exact match | 18 contacts → |
“We're Beattie, a design and technology company that delivers Passivhaus and net zero solutions for the built environment.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Design MEdesignmeconsultants.com HQ: Glasgow, United KingdomReported employees: 1-10 | Glasgow, United Kingdom | 1-10 | Exact match | 18 contacts → |
“Design Me have a holistic, pro-active and innovative approach to low energy building services design, our expert understanding of building physics allows us to help design teams…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | ECO Design Consultantsecodesignconsultants.co.uk HQ: Milton Keynes, United KingdomReported employees: 11-50 | Milton Keynes, United Kingdom | 11-50 | Exact match | 15 contacts → |
“Eco Design Consultants is an award-winning chartered architecture practice, specialise in Passivhaus both new build and retrofit.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | True North Constructiontruenorthconstruction.co.uk HQ: Newcastle Upon Tyne, United KingdomReported employees: 11-50 | Newcastle Upon Tyne, United Kingdom | 11-50 | Exact match | 15 contacts → |
“True North Group have a passion for sustainable living - we specialize in building eco-friendly and energy efficient passive housing with an unwavering commitment to environmental…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Ecospheric LTDecospheric.co.uk HQ: Lymm, United KingdomReported employees: 11-50 | Lymm, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Ecospheric, an award winning Passive House consultancy that supports planners, architects and developers in designing and delivering pioneering eco developments that save carbon…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Passivhaus Trustpassivhaustrust.org.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 14 contacts → |
“The Passivhaus Trust is an independent, non-profit organisation that provides leadership in the UK for the adoption of the Passivhaus standard and methodology.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Solarcrestsolarcrest.co.uk HQ: Macclesfield, United KingdomReported employees: 11-50 | Macclesfield, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Eco-homes are healthier and more comfortable to live in, more economical to own, and have a far lower environmental impact.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Bayview Contracts LTDbayviewcontracts.com HQ: Newry, United KingdomReported employees: 11-50 | Newry, United Kingdom | 11-50 | Exact match | 14 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 | Total Home Environment LTDtotalhome.co.uk HQ: Moreton In Marsh, United KingdomReported employees: 11-50 | Moreton In Marsh, United Kingdom | 11-50 | Exact match | 13 contacts → |
“Total Home Environment can plan, select and install heat recovery ventilation, heat pump ventilation, compact service units and central vacuum systems to achieve the healthiest…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Mantis LTDmantisenergy.co.uk HQ: Wilmslow, United KingdomReported employees: 11-50 | Wilmslow, United Kingdom | 11-50 | Exact match | 13 contacts → |
“The homes we live in as well as the new homes currently being built can be more efficient, more sustainable and we can get more value from them.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Beyond Carbonbeyondcarbon.uk HQ: Oxfordshire, United KingdomReported employees: 11-50 | Oxfordshire, United Kingdom | 11-50 | Exact match | 12 contacts → |
“Beyond Carbon Associates is a design and engineering consultancy founded in 2022 by Dr.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Leda LTDleda.coopHQ: Leeds, United KingdomReported employees: 1-10 | Leeds, United Kingdom | 1-10 | Exact match | 12 contacts → |
“Welcome to Leeds Environmental Design Associates (LEDA), a worker-owned cooperative of designers dedicated to creating great sustainable buildings that respect the environment and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  HEM Architectshemarchitects.co.ukHQ: Sheffield, United KingdomReported employees: 1-10 | Sheffield, United Kingdom | 1-10 | Exact match | 11 contacts → |
“Traditional architects focus purely on design.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Warm LOW Energy Building Practicepeterwarm.co.uk HQ: Plymouth, United KingdomReported employees: 1-10 | Plymouth, United Kingdom | 1-10 | Exact match | 11 contacts → |
“We are Energy Consultants specialising in comfort and low energy buildings.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Paul Heat Recoverypaulheatrecovery.co.uk HQ: Dunfermline, United KingdomReported employees: 11-50 | Dunfermline, United Kingdom | 11-50 | Exact match | 10 contacts → |
“PAUL Heat Recovery is a Scottish based company, which has become a specialist centre for highly efficient domestic ventilation solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Henriksen Studiohenriksenstudio.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 10 contacts → |
“At Henriksen Studio, our mission is to enhance the performance of both new and existing buildings.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 172 company matches
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Passive house designers: dataset insights
September 20, 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
172 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 worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 172 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: September 20, 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 passive house designers?
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 passive house designers did RevenueBase find based in the United Kingdom?
The saved snapshot records 172 matching company records, 950 tracked contacts and 402 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: September 20, 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
Passive house designers by geography
- Passive house designers based in Australia
- Passive house designers based in Belgium
- Passive house designers based in Canada
- Passive house designers based in France
- Passive house designers based in Germany
- Passive house designers based in Italy
- Passive house designers based in the Netherlands
- Passive house designers based in New Zealand
- Passive house designers based in Spain
- Passive house designers based in Switzerland
- Passive house designers based in the United States
Cite this list
RevenueBase Data Team. Top 25 passive house designers based in the United Kingdom. Snapshot: September 20, 2026. https://revenuebase.ai/companies/passive-house-designers/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 passive house designers based in the United Kingdom
RevenueBase records 172 matching company records for passive house designers based in the United Kingdom, with 950 tracked contacts and 402 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: September 20, 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 passive house designers based in the United Kingdom
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 | 21 Degrees21degrees.com HQ: Nationwide, United KingdomReported employees: 201-500 | Nationwide, United Kingdom | 201-500 | Exact match | 65 contacts → |
“At 21 Degrees, we believe buildings should be designed for lower energy use, healthier spaces and better comfort.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | RSP Consulting Engineersrsp.net HQ: Edinburgh, United KingdomReported employees: 51-200 | Edinburgh, United Kingdom | 51-200 | Exact match | 60 contacts → |
“RSP Consulting Engineers LLP are leaders in sustainable and low energy building services design.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Avonside Energyavonsideenergy.co.uk HQ: Rearsby, United KingdomReported employees: 201-500 | Rearsby, United Kingdom | 201-500 | Exact match | 42 contacts → |
“Avonside Energy: Your Partner in Sustainable Building Solutions At Avonside Energy, we are dedicated to delivering best-in-class services across: New Build Insulation…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | FBM Architectsfbmarchitects.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 34 contacts → |
“FBM Architects believe that fantastic architecture makes a positive difference to people’s lives.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | GCP Chartered Architectsgcparch.co.uk HQ: Bristol, United KingdomReported employees: 11-50 | Bristol, United Kingdom | 11-50 | Exact match | 25 contacts → |
“gcp is an employee-owned chartered architectural practice and energy consultancy based in Bristol.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | MBC Timber Frame UK LTDmbctimberframe.co.uk HQ: Gloucester, United KingdomReported employees: 11-50 | Gloucester, United Kingdom | 11-50 | Exact match | 23 contacts → |
“MBC Timber Frame UK Ltd was established in 2002 in Tipperary, Ireland and in 2011 we sold our first passive house in the UK, since then we have concentrated our efforts in the…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Anotherkind Architectsakind-a.com HQ: Bingham, United KingdomReported employees: 11-50 | Bingham, United Kingdom | 11-50 | Exact match | 19 contacts → |
“We're certified Passivhaus architects and conservation specialists.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | ECO Systems Group LTDecosystemsgroup.co.uk HQ: Harold Wood, United KingdomReported employees: 51-200 | Harold Wood, United Kingdom | 51-200 | Exact match | 18 contacts → |
“Eco Systems Group has been delivering high-quality insulation, retrofit, solar solutions & air source heat pumps across the commercial and residential sectors for over 13 years.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Vector Designvectordesign.co.uk HQ: Stadhampton, United KingdomReported employees: 11-50 | Stadhampton, United Kingdom | 11-50 | Exact match | 18 contacts → |
“Vector Design has achieved a reputation for high quality and value in an ever competitive and technically challenging market place.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Beattiebeattiepassive.com HQ: Norwich, United KingdomReported employees: 1-10 | Norwich, United Kingdom | 1-10 | Exact match | 18 contacts → |
“We're Beattie, a design and technology company that delivers Passivhaus and net zero solutions for the built environment.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Design MEdesignmeconsultants.com HQ: Glasgow, United KingdomReported employees: 1-10 | Glasgow, United Kingdom | 1-10 | Exact match | 18 contacts → |
“Design Me have a holistic, pro-active and innovative approach to low energy building services design, our expert understanding of building physics allows us to help design teams…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | ECO Design Consultantsecodesignconsultants.co.uk HQ: Milton Keynes, United KingdomReported employees: 11-50 | Milton Keynes, United Kingdom | 11-50 | Exact match | 15 contacts → |
“Eco Design Consultants is an award-winning chartered architecture practice, specialise in Passivhaus both new build and retrofit.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | True North Constructiontruenorthconstruction.co.uk HQ: Newcastle Upon Tyne, United KingdomReported employees: 11-50 | Newcastle Upon Tyne, United Kingdom | 11-50 | Exact match | 15 contacts → |
“True North Group have a passion for sustainable living - we specialize in building eco-friendly and energy efficient passive housing with an unwavering commitment to environmental…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Ecospheric LTDecospheric.co.uk HQ: Lymm, United KingdomReported employees: 11-50 | Lymm, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Ecospheric, an award winning Passive House consultancy that supports planners, architects and developers in designing and delivering pioneering eco developments that save carbon…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Passivhaus Trustpassivhaustrust.org.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 14 contacts → |
“The Passivhaus Trust is an independent, non-profit organisation that provides leadership in the UK for the adoption of the Passivhaus standard and methodology.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Solarcrestsolarcrest.co.uk HQ: Macclesfield, United KingdomReported employees: 11-50 | Macclesfield, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Eco-homes are healthier and more comfortable to live in, more economical to own, and have a far lower environmental impact.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Bayview Contracts LTDbayviewcontracts.com HQ: Newry, United KingdomReported employees: 11-50 | Newry, United Kingdom | 11-50 | Exact match | 14 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 | Total Home Environment LTDtotalhome.co.uk HQ: Moreton In Marsh, United KingdomReported employees: 11-50 | Moreton In Marsh, United Kingdom | 11-50 | Exact match | 13 contacts → |
“Total Home Environment can plan, select and install heat recovery ventilation, heat pump ventilation, compact service units and central vacuum systems to achieve the healthiest…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Mantis LTDmantisenergy.co.uk HQ: Wilmslow, United KingdomReported employees: 11-50 | Wilmslow, United Kingdom | 11-50 | Exact match | 13 contacts → |
“The homes we live in as well as the new homes currently being built can be more efficient, more sustainable and we can get more value from them.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Beyond Carbonbeyondcarbon.uk HQ: Oxfordshire, United KingdomReported employees: 11-50 | Oxfordshire, United Kingdom | 11-50 | Exact match | 12 contacts → |
“Beyond Carbon Associates is a design and engineering consultancy founded in 2022 by Dr.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Leda LTDleda.coop HQ: Leeds, United KingdomReported employees: 1-10 | Leeds, United Kingdom | 1-10 | Exact match | 12 contacts → |
“Welcome to Leeds Environmental Design Associates (LEDA), a worker-owned cooperative of designers dedicated to creating great sustainable buildings that respect the environment and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HEM Architectshemarchitects.co.uk HQ: Sheffield, United KingdomReported employees: 1-10 | Sheffield, United Kingdom | 1-10 | Exact match | 11 contacts → |
“Traditional architects focus purely on design.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Warm LOW Energy Building Practicepeterwarm.co.uk HQ: Plymouth, United KingdomReported employees: 1-10 | Plymouth, United Kingdom | 1-10 | Exact match | 11 contacts → |
“We are Energy Consultants specialising in comfort and low energy buildings.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Paul Heat Recoverypaulheatrecovery.co.uk HQ: Dunfermline, United KingdomReported employees: 11-50 | Dunfermline, United Kingdom | 11-50 | Exact match | 10 contacts → |
“PAUL Heat Recovery is a Scottish based company, which has become a specialist centre for highly efficient domestic ventilation solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Henriksen Studiohenriksenstudio.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 10 contacts → |
“At Henriksen Studio, our mission is to enhance the performance of both new and existing buildings.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 172 company matches
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Passive house designers: dataset insights
September 20, 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
172 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 worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 172 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: September 20, 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 passive house designers?
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 passive house designers did RevenueBase find based in the United Kingdom?
The saved snapshot records 172 matching company records, 950 tracked contacts and 402 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: September 20, 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
Passive house designers by geography
- Passive house designers based in Australia
- Passive house designers based in Belgium
- Passive house designers based in Canada
- Passive house designers based in France
- Passive house designers based in Germany
- Passive house designers based in Italy
- Passive house designers based in the Netherlands
- Passive house designers based in New Zealand
- Passive house designers based in Spain
- Passive house designers based in Switzerland
- Passive house designers based in the United States
Cite this list
RevenueBase Data Team. Top 25 passive house designers based in the United Kingdom. Snapshot: September 20, 2026. https://revenuebase.ai/companies/passive-house-designers/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗