mosart
Mosart is a privately held Passivhaus architecture and building physics practice in Ireland that designs, certifies, trains, and monitors high-performance buildings for developers, contractors, housing bodies, and public authorities across Ireland, the UK, and the US, with 25 staff including seven PHI-accredited certifiers.
- Company typePrivate
- Founded1993
- HeadquartersRathnew, Co. Wicklow, Ireland
- Headcount11–50
- GTM typeB2B
- OfferingServices
What mosart does
Mosart is a privately held Passivhaus architecture and building physics practice founded in 1993 in Rathnew, Co. Wicklow, Ireland. It delivers four interconnected service lines — Architecture, Consulting, Learning, and Pulse — that together form a closed proof loop from design through to in-use performance measurement. The Architecture line provides full service from feasibility through handover, with projects ranging from single houses to a 5,500-home new town (Seven Mills, with the Land Development Agency). The Consulting line offers PHI-accredited Passivhaus certification, PHPP energy modelling, thermal bridge analysis, airtightness strategy, dynamic simulation, hygrothermal analysis, and whole-life carbon assessment; thermal bridge work is sold against a published rate card (€500 per 2D detail, €1,500 per 3D detail, €975 per site visit). The Learning line runs Certified Passivhaus Designer (€1,795 on-demand) and Tradesperson courses plus bespoke CPD, having trained 4,500+ professionals across four continents, and operates the ZEB Summit conference. Pulse is the firm's post-occupancy monitoring platform, streaming temperature, CO2, humidity, and energy data from occupied buildings — over 1,100 sensors across a single Whitehaven scheme — and feeding measured performance back into design assumptions. The practice employs 25 staff including seven PHI-accredited certifiers (the largest independent certification bench in Ireland), holds RIAI and ISO 9001:2015 accreditations, and has certified more than 4 million ft² of Passivhaus floor area across Ireland, the UK, and the United States.
mosart firmographics
Firmographics- Name
- mosart
- Legal name
- Mosart Group
- Website
- https://mosartgroup.com
- Company type
- Private
- Founded year
- 1993
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Mosart is a privately held Passivhaus architecture and building physics practice in Ireland that designs, certifies, trains, and monitors high-performance buildings for developers, contractors, housing bodies, and public authorities across Ireland, the UK, and the US, with 25 staff including seven PHI-accredited certifiers.
- Ownership category
- akta.pro rank
mosart industry classification
Industry- Product category
- Architectural and Building Physics Services
- NAICS
- Architectural Services (54131)
- SIC
- Auto Controls For Regulating Residential & Comml Environments (3822)
- akta.pro primary industry
- HVAC Service, Maintenance & Repair (BPABACAA)
- akta.pro secondary industries
- Commercial HVAC Maintenance Agreements & PM Programs (HSAOAHAJ), Testing, Adjusting & Balancing (TAB) & Performance Verification (BPABACAJ)
Keywords
Where mosart is headquartered
LocationHeadquarters
- HQ city
- Rathnew, Co. Wicklow
- HQ country
- Ireland
- HQ region
- Europe
Offices1 record
Markets served
mosart business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Others
Revenue model
- Architectural services: Full architectural service from feasibility through to handover, with building physics embedded from day one. Revenue is project-based, scoped against defined project briefs with fixed fees. Projects range from single houses to 5,500-home new towns.
- Passivhaus consulting and certification: Independent Passivhaus certification, PHPP energy modelling, thermal bridge analysis, airtightness strategy, dynamic simulation, hygrothermal analysis, and whole-life carbon assessment. Revenue is project-based with fixed fees; thermal bridge work uses a published rate card (€500 per 2D detail, €1,500 per 3D detail, €975 per site visit).
- Learning and training: Certified Passivhaus Designer course at €1,795 per participant (on-demand, self-paced), Certified Passivhaus Tradesperson course (in person, online, or in-house; enquire for pricing), bespoke CPD training, and the ZEB Summit conference. Trained 4,500+ professionals across four continents.
- Pulse post-occupancy monitoring: Sensor deployment, live monitoring, compliance reporting, and performance evaluation for Passivhaus buildings post-occupancy. Delivered as part of project engagement or as a standalone monitoring service. Generates evidence for Awaab's Law, TM52/TM59, and Passivhaus in-use compliance.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Pay-as-you-go | Certified Passivhaus Designer course: €1,795 per participant |
| Unit Pricing | Pay-as-you-go | Thermal bridge modelling: published rate card starting at €500 per 2D detail |
| Other | Pay-as-you-go | Certified Passivhaus Tradesperson: enquire for pricing |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels7 records
mosart product offering
Product offeringCore offering
Mosart is a Passivhaus architecture, consulting and certification practice that designs high-performance buildings, provides PHI-accredited certification, PHPP energy modelling and thermal bridge analysis, and operates the Pulse post-occupancy monitoring platform. Services span full architectural commissions from feasibility to handover, independent Passivhaus certification at scale, accredited training (Certified Passivhaus Designer, Tradesperson, CPD), and live in-use performance monitoring — all anchored to the Passivhaus standard (≤15 kWh/m²a space-heating demand, ≤0.6 ACH airtightness at 50 Pa).
Product overview
Mosart is a Passivhaus architecture and consulting practice offering four interconnected service lines: Architecture (full architectural service with building physics embedded from design), Consulting (PHI-accredited certification, PHPP energy modelling, thermal bridge analysis, airtightness strategy), Learning (Certified Passivhaus Designer/Tradesperson courses and CPD), and Pulse (post-occupancy monitoring platform). The practice also provides free building physics tools including U-value calculators, airtightness converters, fabric heat-loss calculators, treated floor area calculators, condensation checkers, and overheating screening tools. These tools and services are designed to work together within the Mosart ecosystem, from feasibility through certification to in-use monitoring.
Differentiator
Problem solved
Functional benefit
Brands
- Pulse: Post-occupancy monitoring platform for Passivhaus buildings, measuring energy, comfort and air quality in use.
- Pulse BPM
Products and services
- Architecture Services Full architectural service and masterplanning covering feasibility, planning, detailed design, ZEB/NZEB/Passivhaus design, deep retrofit and Passivhaus-at-scale delivery, designed to perform from the first sketch to handover. Built for developers, contractors, housing bodies and public authorities, with projects ranging from single houses to a 5,500-home new town.
- Passivhaus Consulting and Certification Services PHI-accredited building physics consulting covering Passivhaus designer role, independent Passivhaus certification by seven PHI-accredited certifiers, PHPP energy modelling, thermal bridge analysis (2D and 3D psi-values to ISO 10211), airtightness strategy and on-site testing, dynamic simulation for TM52/TM59/Part O, WUFI hygrothermal analysis, daylight/sunlight to EN 17037, whole-life carbon to EN 15978, EnerPHit retrofit and portfolio decarbonisation. Sold as fixed-fee professional engagements with published rate cards for thermal bridge modelling.
- Certified Passivhaus Designer Course On-demand, self-paced Certified Passivhaus Designer qualification with PHI exam, priced at €1,795 per participant, taught by Mosart's practising certifiers. Delivered online to architects, building physicists, engineers and design professionals across four continents; over 4,500 professionals have been trained to date.
- Certified Passivhaus Tradesperson Course Practical Passivhaus qualification for site teams and tradespeople, available in person, online or delivered in-house at a practice or contractor. Targets the construction supply chain with hands-on Passivhaus detailing, airtightness and quality assurance skills; pricing on enquiry.
- Bespoke CPD Training Bespoke continuing professional development delivered in-house to architectural practices, developer teams and local authorities, tailored to Passivhaus design, certification, PHPP modelling, thermal bridging, airtightness and regulatory readiness. Pricing on enquiry.
- ZEB Summit Conference Annual Passivhaus and zero-emissions building conference founded and run by Mosart, bringing together practitioners, developers and policy makers for training, networking and industry positioning. Registration available online.
- Pulse Post-Occupancy Monitoring Service Post-occupancy monitoring service delivered through the Pulse platform: sensor deployment in occupied buildings, live streaming of temperature, CO₂, humidity and energy, performance evaluation comparing designed versus measured outcomes for every dwelling, and compliance reporting for CIBSE TM52/TM59 overheating, Awaab's Law mould risk, Passivhaus in-use performance and Part O. Sold as part of a project engagement or as a standalone managed service; evidence feeds back into design assumptions for the next project.
Quantifiable outcome
- Space-heating demand ≤15 kWh/m²a, the certified Passivhaus limit
- +6 more outcomes
Companies that use mosart
Customer profileNamed customers8 records
Segments5 records
Ideal customer profiles5 records
mosart technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
mosart partnerships and signals
Strategic signalScale indicators7 records
Recent moves3 records
Expansion highlights6 records
mosart competitors and assessment
Company assessmentBroad incumbents
- BDP (Building Design Partnership): Major UK multi-disciplinary architecture and engineering firm with a substantial sustainability practice delivering Passivhaus, retrofit, and decarbonisation projects for universities, housing associations, and public bodies. Overlaps with Mosart's architecture and consulting lines at much larger scale and across more geographies.
- Arup: Global engineering, design, and sustainability consultancy with established Passivhaus and net-zero delivery capabilities. Competes for the same developer, contractor, and public-body briefs as Mosart across Ireland and the UK, but as part of a much broader portfolio.
Others
- AECB (Association for Environment Conscious Building): UK membership body for sustainable building professionals. Not a commercial peer but operates adjacent training, certification, and CPD programmes that overlap with Mosart's Certified Passivhaus Designer/Tradesperson and CPD offerings.
- Passivhaus Trust: UK non-profit industry body promoting Passivhaus adoption. Sets context for Mosart's UK market, runs complementary training and events (alongside Mosart's ZEB Summit), and influences regulatory engagement that drives demand for Mosart's services.
- Passive House Institute (PHI): Germany-based originator of the Passivhaus standard and the body accrediting Mosart's seven certifiers. Not a competitor but the central standards-setter and accreditor whose evolving criteria directly shape Mosart's certification, consulting, and Pulse in-use offerings.
Direct peers
- Max Fordham: UK-based building services and building physics engineering consultancy with deep Passivhaus and low-energy design credentials. Comparable to Mosart in offering independent certification-adjacent building physics consulting, PHPP-style energy modelling, and overheating analysis, though operating as engineers rather than architects and at considerably larger scale.
- Hoare Lea: UK MEP and sustainability consultancy delivering Passivhaus, overheating, dynamic simulation, and whole-life carbon services. Overlaps directly with Mosart's consulting arm (PHPP, thermal bridge, airtightness, dynamic simulation to TM52/TM59 and Part O, WUFI, EN 15978 carbon) and competes for the same developer and public-sector briefs.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
mosart social profiles
Digital presencemosart compliance and trust
Trust signalCompliance2 records
mosart financial estimates
Financial estimateRevenue estimate
Valuation estimate
mosart leadership team
Management profileNumber of profiles
Profiles8 records
mosart funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
mosart M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about mosart
What does mosart do?
Mosart is a Passivhaus architecture, consulting and certification practice that designs high-performance buildings, provides PHI-accredited certification, PHPP energy modelling and thermal bridge analysis, and operates the Pulse post-occupancy monitoring platform. Services span full architectural commissions from feasibility to handover, independent Passivhaus certification at scale, accredited training (Certified Passivhaus Designer, Tradesperson, CPD), and live in-use performance monitoring — all anchored to the Passivhaus standard (≤15 kWh/m²a space-heating demand, ≤0.6 ACH airtightness at 50 Pa).
Is mosart a public or private company?
mosart is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was mosart founded?
mosart was founded in 1993. It employs 11 to 50 people.
Where is mosart based?
mosart is headquartered in Rathnew, Co. Wicklow, Ireland, in the Europe region.
How does mosart make money?
Four revenue lines are on record. Architectural services are the primary driver. The others are passivhaus consulting and certification, learning and training and pulse post-occupancy monitoring.
Who are mosart's main competitors?
Broad incumbents on record are BDP (Building Design Partnership) and Arup. Others are AECB (Association for Environment Conscious Building), Passivhaus Trust and Passive House Institute (PHI). Direct peers are Max Fordham and Hoare Lea.
Does mosart have an API?
No public API is recorded for mosart.
What industry is mosart in?
mosart's product category is Architectural and Building Physics Services. Its primary akta.pro industry code is BPABACAA, HVAC Service, Maintenance & Repair, with a secondary code of HSAOAHAJ, Commercial HVAC Maintenance Agreements & PM Programs. Its NAICS code is 54131 and its SIC code is 3822.