What ArchiPHYSIK does

A-NULL Development GmbH operates ArchiPHYSIK, a Vienna-based Windows desktop software suite for Austrian building physics calculations and energy certification, founded in 2008. The software implements all iterations of OIB Guideline 6 (2007, 2015, 2019, 2023, 2025) and provides validated calculations across energy certificates (one-zone and multi-zone), summer heat protection, acoustic protection, vapor diffusion (moisture), and ecological assessment (OI3-Index, ÖGNI material balancing). Native Add-ons integrate with ArchiCAD (Graphisoft) for new construction and SketchUp (Trimble) for existing-building capture, while direct upload integrations with ZEUS, WUKSEA, and EAWZ enable state-level regulatory submission across all nine Austrian federal states. The company has shipped 23+ major versions, with version 26.0.019 being current.

The product line includes three paid tiers (ArchiPHYSIK Standard, Wohngebäude, Elements), a free ArchiEDUCATION version for universities and vocational schools, a free RenoPass WebApp for OIB RL 6:2025 renovation passports, and the Devinare monthly webinar series (€59/person). Revenue is generated primarily through initial software licenses combined with the ServicePAKET annual subscription that bundles free updates and helpdesk support; distribution occurs via direct website downloads, an online shop, and a network of regional Vertriebspartner across Austria. The company serves a horizontal base of approximately 4,450 professional customers (architects, energy consultants, building physicists, building authorities, and students), with no external funding, no M&A activity, and no disclosed geographic expansion beyond Austria.

Name

ArchiPHYSIK

Legal name

A-NULL Development GmbH

Website

https://archiphysik.at

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

11–50 employees

Short description

ArchiPHYSIK is a Vienna-based Windows desktop software suite, operated by A-NULL Development GmbH, that provides validated building physics calculations and energy certificate generation compliant with Austrian OIB guidelines for approximately 4,450 architects, energy consultants, and building authorities across Austria.

Ownership category

akta.pro rank

Headquarters

HQ city

Vienna

HQ country

Austria

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Software Licenses and ServicePAKET Subscriptions: ArchiPHYSIK sells software licenses with an annual ServicePAKET subscription that provides free updates to the latest version and technical support through a helpdesk. The ServicePAKET contract can be terminated with one month notice at the main due date.
2. Paid Webinars (Devinare): Monthly online webinars (Devinare) on current topics in building physics and energy certificates, with some free recordings and some paid sessions at 59€/person
3. License Transfer Fees: When transferring software licenses to another user, the receiving party must update to the current version at their own cost

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

ArchiPHYSIK is a Windows desktop software suite developed by A-NULL Development GmbH for norm-compliant building physics calculations and Austrian energy certificate (Energieausweis) generation. It provides integrated tools for heat transfer, vapor diffusion (moisture protection), sound insulation (acoustic protection), summer heat protection assessment, and ecological calculations (OI3-Index) under OIB Guideline 6, with direct upload to Austrian state energy certificate platforms (ZEUS, WUKSEA, EAWZ) and CAD integrations for ArchiCAD and SketchUp.

Product overview

ArchiPHYSIK is a building physics and energy certificate software suite for Austria, available in multiple editions (Standard, Wohngebäude, Elements) and a free ArchiEDUCATION version. The software provides integrated building physics calculations including heat transfer, vapor diffusion, sound insulation, and summer heat protection, along with energy certificate generation per OIB guidelines. CAD integration add-ons for ArchiCAD and SketchUp enable efficient geometry import, while the free RenoPass WebApp addresses renovation passport requirements. The product ecosystem includes the ServicePAKET maintenance contract and Devinare webinar series for continuous education.

Differentiator

Problem solved

Functional benefit

Brands

• ArchiPHYSIK Standard: Full building physics solution with heat, vapor diffusion, and sound calculations.
• ArchiPHYSIK Wohngebäude
• ArchiPHYSIK Elements
• ArchiEDUCATION
• Renovierungspass WebApp
• Devinare
• ServicePAKET

Products and services

• ArchiPHYSIK Standard Full-featured building physics and energy certificate software covering all calculation types including heat, vapor diffusion, and sound. The complete program tier for professional building physics assessments in Austria.
• ArchiPHYSIK Wohngebäude Entry-level edition focused on residential building energy certificates. Covers the specific requirements for housing construction subsidies and residential building physics calculations in Austria.
• ArchiPHYSIK Elements Component-focused building physics module for structural element analysis. Allows detailed assessment of individual building components for physics calculations and material properties.
• ArchiEDUCATION Free version of ArchiPHYSIK provided at no cost for educational purposes. Supports youth development and continuing education in building physics and energy certification for vocational schools, universities, and continuing education programs.
• RenoPass WebApp (Renovierungspass WebApp) Free web-based application for creating renovation passports according to OIB-Richtlinie 6:2025. Enables documentation of building renovation measures and compliance with updated Austrian renovation standards.
• ArchiPHYSIK SketchUp Add-on Plugin for SketchUp enabling efficient 3D building geometry capture and transfer to ArchiPHYSIK. Version 3 includes improved shading calculations and user control for energy certificate workflows on existing buildings.
• ArchiCAD Add-on CAD data exchange module enabling import of ArchiCAD building geometry and geographic data into ArchiPHYSIK. Designed for new construction planning workflows and seamless data transfer between ArchiCAD and ArchiPHYSIK.
• Devinare (Webinars) Monthly online webinar series covering ArchiPHYSIK features, building physics topics, and energy certificate regulations. Includes both free and paid sessions (59 EUR/person excluding VAT), with recordings available in the library.

Quantifiable outcome

• 4450 customers in Austria rely on ArchiPHYSIK for energy certificates

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

Feature12 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Graphisoft (ArchiCAD)coreTechnology or IntegrationNative Add-on integration enabling direct data exchange between ArchiCAD and ArchiPHYSIK for new building planning. Allows importing building geometry and geographic data directly into energy certificate calculations.
• Trimble (SketchUp)coreTechnology or IntegrationSketchUp Add-on for capturing existing building geometry and exporting to ArchiPHYSIK. Version 3.3.2 enables export workflow for existing buildings.
• OIB (Austrian Institute of Construction Engineering)coreStrategic or Co-development PartnerArchiPHYSIK implements OIB Guideline 6 calculations and guidelines. All software updates align with new OIB guidelines (2011, 2015, 2019, 2023).
• Austrian State Energy Certificate Platforms (ZEUS, WUKSEA, EAWZ)coreTechnology or IntegrationDirect integration with Austrian regional energy certificate platforms: ZEUS (multiple states), WUKSEA (Vienna), EAWZ (Vorarlberg). Enables automated data upload and validation.
• buildingSMART AustriaminorStrategic or Co-development PartnerParticipation in BIM Globe conference organized by buildingSMART Austria, focusing on BIM topics and building information modeling.
• Holzforschung AustriaminorStrategic or Co-development PartnerCollaboration on dataholz workflow for sound protection in timber construction. Joint webinar presented with Bettina Plößnig from Holzforschung Austria.
• ÖGNI (Austrian Sustainable Building Council)minorStrategic or Co-development PartnerSupport for ÖGNI certification through material balancing (Stoffbilanzierung) for ecological building assessment.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• LiNear: Dutch-German vendor of building physics and energy calculation software (LiNear Building, LiNear Energieausweis) for residential and non-residential buildings. Directly competes with ArchiPHYSIK in the same vertical SaaS category.
• Hottgenroth Software: German vendor of building physics, energy certificate, and CAD-based calculation software (ETU, EnEV-Tool). Direct competitor offering overlapping workflows for architects and energy consultants in German-speaking markets.
• Solar-Computer: German supplier of building physics and energy performance software used to generate energy certificates and building assessments under German regulations. Closely comparable product category and customer base.

Broad incumbents

• NEVARIS Bausoftware: German construction software vendor (formerly Nemetschek Bausoftware) offering estimating, billing, and increasingly BIM-driven workflows. Could expand downward into energy certificate workflows for the DACH market.
• Bentley Systems: Global infrastructure engineering software vendor with OpenBuildings Designer and energy analysis capabilities. Adjacent incumbent in building performance software for architects and engineers.
• Graphisoft: Hungarian-headquartered vendor of ArchiCAD — ArchiPHYSIK's existing integration partner. Operates broadly in AEC software and could expand into energy certification workflows, threatening ArchiPHYSIK's wedge.
• Autodesk: Global AEC software incumbent with Revit, Forma, and Insight energy analysis tools. The dominant threat in moving energy certification workflows upstream into integrated BIM platforms.
• Trimble: Global AEC software vendor (SketchUp, Tekla, Trimble Connect). ArchiPHYSIK's SketchUp Add-on is built on Trimble's platform — making Trimble both a partner and a potential integrator competitor.

Regional players

• Dietrich's: German vendor of timber construction CAD and building physics software widely used by carpenters and architects in DACH. Competes in adjacent workflows including energy performance and CAD-integrated design.
• AEC-Services (mb WorkSuite): Austrian vendor of engineering and structural calculation software (mb WorkSuite) serving the same Austrian AEC market. Regional peer with overlapping customer base of architects and structural engineers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UC4qE1Gq1VHN3fJCEcHmE_5w
• Xx.com/archiphysik
• LinkedInlinkedin.com/company/a-null-development-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about ArchiPHYSIK