batisim

What batisim does

Batisim is the official French distributor and support partner for DesignBuilder, a building performance simulation platform. Operating from Saint-Maur-des-Fossés (France), the firm sells DesignBuilder software licenses, delivers paid training ("Formations DesignBuilder"), performs site-license installation, and provides ongoing technical assistance and expertise to engineering and architectural design firms and energy consultants across France.

The product portfolio centers on the DesignBuilder platform, which packages a dynamic 3D modeler around three underlying physics engines: EnergyPlus (thermal/energy simulation), Radiance (daylighting), and an in-house CFD module using the SIMPLER algorithm with k-epsilon turbulence modeling. The platform is modular — add-on modules cover HVAC systems (CVC), optimization/sensitivity via genetic algorithms, LEED certification (ASHRAE 90.1 Appendix G), lifecycle cost analysis (NRM1, UNIFORMAT II), scripting (EMS, C#, Python), and a new Climate Analytics platform providing historical and IPCC-scenario weather data. Licensing is tiered (Architectural Plus, Engineering, Engineering Plus/Pro), and the software is delivered with parallelized simulation to compress runtime.

Batisim's business model is software distribution plus value-added services: license sales (with optional site licenses), paid training programs, and recurring technical assistance. Pricing is not publicly disclosed. The firm localizes go-to-market for a niche engineering audience via a French-language website, a user forum, video tutorials, an experience base, and a self-declared user registry, leveraging its exclusive France partnership as the primary commercial moat. No funding events, headcount, or financial disclosures are available.

Name

batisim

Legal name

Batisim

Website

https://batisim.net

Company type

Private

Operating status

Operating

Short description

Batisim is the official French distributor and support partner for DesignBuilder, selling building performance simulation software — covering energy, daylighting, CFD, and certification workflows — and providing training and technical assistance to engineering, architectural, and energy-consulting firms in France.

Ownership category

akta.pro rank

Product category

Building Performance Simulation Software

NAICS

Architectural, Engineering, and Related Services (5413), Drafting Services (541340)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Building Information Modeling (BIM) & Digital Design Services (BPAHAKAK)

Keywords

• Building simulation software
• Energy modeling software
• HVAC design tools
• Daylighting analysis
• CFD simulation software

Headquarters

HQ city

Saint-maur-des-fossés

HQ country

France

HQ region

Europe

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Distribution channels1 record

Marketing channels4 records

Core offering

Batisim is the official DesignBuilder partner in France, distributing DesignBuilder building performance simulation software licenses. The company sells modular software for building energy modeling, HVAC design, daylighting, CFD analysis, LEED/BREEAM/HQE certification, cost analysis, and parametric optimization. Batisim also provides installation services, training programs, and technical support to French engineering and design professionals.

Product overview

Batisim is the official DesignBuilder partner in France, distributing and supporting DesignBuilder building performance simulation software. DesignBuilder is a modular platform offering a unified 3D modeler as its core component, supplemented by specialized analysis modules including Simulation (energy analysis powered by EnergyPlus), HVAC Systems, Lighting (using Radiance), CFD (Computational Fluid Dynamics), LEED certification support, Cost/Life Cycle Analysis, Optimization/Sensitivity analysis, and Scripting (EMS/C#/Python). The platform is available in multiple licensing tiers: Architectural Plus and Engineering (with Engineering Plus and Engineering Pro variants) to serve different user needs from basic energy modeling to advanced research applications.

Differentiator

Problem solved

Functional benefit

Products and services

• DesignBuilder Software License Building performance simulation software providing dynamic 3D modeling, energy analysis, HVAC design, daylighting, CFD, and environmental certification support (LEED, BREEAM, HQE) using EnergyPlus and Radiance calculation engines. Available in multiple licensing tiers (Architectural Plus, Engineering, Engineering Plus, Engineering Pro). Designed for engineering firms, architectural design firms, and energy consultants.
• DesignBuilder 3D Modeler Core 3D modeling module for building geometry creation, allowing users to work through all project phases from concept to execution with progressive parameter refinement. Included as the foundational component of DesignBuilder.
• DesignBuilder Simulation Module Energy simulation engine using EnergyPlus for quantifying energy strategies and thermal comfort. Enables parallelized simulations for improved computational performance.
• DesignBuilder HVAC Systems Module HVAC (CVC in French) systems modeling module for designing and simulating heating, ventilation, and air conditioning systems within buildings.
• DesignBuilder Lighting Module Daylighting (Eclairement in French) analysis module using Radiance for natural lighting studies and daylight factor calculations.
• DesignBuilder CFD Module Computational Fluid Dynamics module for detailed 3D analysis of air flow, temperature distribution, thermal comfort, and pedestrian wind comfort. Uses SIMPLER algorithm with k-epsilon turbulence model. Independently validated against Phoenics CFD software by Northumbria University.
• DesignBuilder LEED Module Evaluates buildings against ASHRAE 90.1 Appendix G for LEED certification credits EAp2 and EAc1. Automatically generates baseline building models and performs parallel simulations for the four baseline rotations. Supports ASHRAE 90.1 2007, 2010, 2013, 2016.
• DesignBuilder Cost Module Economic impact calculation module covering construction costs, utility tariffs, and life cycle analysis. Supports NRM1 (RICS, UK) and UNIFORMAT II (ASTM, US and Canada) standards with cost/benefit optimization capabilities.
• DesignBuilder Scripting Module Provides scripting capabilities using EMS (Energy Management System), C#, and Python for customizing HVAC controls, façade systems, creating custom outputs, and advanced system modeling beyond standard interface features. Unlocks EnergyPlus simulations with practically unlimited flexibility.
• DesignBuilder Optimization Module Optimization, sensitivity, and uncertainty analysis module using genetic algorithms to identify building variants meeting performance objectives, with parametric study capabilities. Supports combinatorial variants and statistical sampling for uncertainty analysis.
• DesignBuilder Visualization Module Visualization tools for displaying simulation results in graphical formats including 3D renderings, contour plots, and visual representations of building performance data.
• DesignBuilder Climate Analytics Weather file management platform providing historical climate data, IPCC scenario projections, and urban heat island adjustments for building simulation inputs. Supports statistical typical years and real years via worldwide map navigation.
• DesignBuilder Training Programs Professional training programs for DesignBuilder software. Training is included with license purchase and available for additional purchase as a separate service. Delivered in French for the French market.
• Technical Assistance and Expertise Technical assistance and expertise services for DesignBuilder users. Support included with license and available for additional purchase as separate advisory services.
• Site License Installation Services Professional installation services for DesignBuilder site licenses, including deployment and configuration for enterprise customers.

Quantifiable outcome

• Parallelized simulations for optimized computation time
• +1 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature9 records

Partnerships

One partnership is on record.

• DesignBuildercoreChannel Partner/ Reseller/ DistributorBatisim is the official DesignBuilder partner in France (Partenaire officiel), distributing DesignBuilder building simulation software, providing installation services, site licenses, training, and technical support to French customers.

Recent moves5 records

Expansion highlights4 records

Direct peers

• IES (Integrated Environmental Solutions): Provides the IES Virtual Environment, a leading building performance simulation suite covering energy, daylight, HVAC, and CFD. Directly comparable as a competing simulation platform used by engineering and sustainability consultants.
• EQUA Simulation AB: Developer of IDA Indoor Climate and Energy, used for detailed HVAC and multi-zone building energy simulation. Comparable niche simulation vendor serving engineering consultants across Europe.
• DesignBuilder Software Ltd: The UK-based developer of the DesignBuilder platform. While Batisim is its French distribution partner, DesignBuilder itself sells direct in most other markets, making it the closest direct comparable for the same building performance simulation product.
• Trimble (Sefaira): Provides Sefaira, a building energy and daylighting analysis tool used by architects and engineers in early-stage design. Directly competes in the energy/daylight simulation space served by Batisim.

Broad incumbents

• Bentley Systems (OpenBuildings): Offers OpenBuildings and related energy/simulation capabilities as part of its infrastructure and AEC software portfolio. A broader incumbent with overlapping but not specialized building performance functionality.
• Carrier (HVAC Load & Energy Analysis tools): Provides HVAC-focused load calculation and energy analysis software (e.g., HAP) used by mechanical engineers. Overlaps with Batisim's HVAC module positioning within a much broader HVAC equipment business.
• Autodesk (Insight + Revit): Provides building performance analysis (Insight) integrated with Revit as part of its broader BIM/AEC platform. Overlaps with Batisim's simulation use cases but is bundled into a much wider design software portfolio.
• Graphisoft (ArchiCAD EcoDesigner): Provides EcoDesigner integrated with ArchiCAD for building energy evaluation. Competes in the same architectural-firm workflow but as part of a full BIM platform rather than a specialized simulation suite.

Emerging players

• Carmel Software (DesignPH / HTUS): Provides passive house and HVAC sizing tools (DesignPH, HTUS) for sustainable building designers. Comparable as a niche simulation tool serving the same energy consultant segment.
• Ladybug Tools (Honeybee/Ladybug): Open-source Rhino/Grasshopper plugins that wrap EnergyPlus, Radiance, and OpenStudio for parametric building simulation. Comparable as an alternative path to the same calculation engines Batisim distributes.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights5 records

Customer concentration

• LinkedInlinkedin.com/company/batisim

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 batisim