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Open Collective
Open Collective

IfcOpenShell

We build free software IfcOpenShell, Bonsai (previously known as the BlenderBIM Add-on), and more for the Architecture, Engineering, and Construction industry

Today's Balance
$16,097.73
Estimated Annual Budget
$49,886
2nd sponsored developer
$50,000
per year

Contribute

Become a financial contributor.

Financial Contributions

Recurring contribution
Just chippin' in

Has IfcOpenShell software helped you or your company? Want to help us grow but lack deep pockets? Help chip in $5 every month and together it adds up!

Starts at
$5USD / month

Latest activity by

+ 56
Recurring contribution
An individual making a difference

Imagine the world without IfcOpenShell. How different would it be? Be the person to make change happen with only $10 per month.

Starts at
$10USD / month

Latest activity by

+ 43
Recurring contribution
Basic Corporate

If IfcOpenShell is a key part of your company's software library, help budget a little our way and help change the industry!

Starts at
$50USD / month

Latest activity by

+ 4
Recurring contribution
Corporate Sponsor

Believe in what we do? Become an official corporate sponsor and make us grow from a spare-time gig into a sustainable foundation.

Starts at
$100USD / month

Latest activity by

+ 6
Custom contribution
Donation
Make a custom one-time or recurring contribution.

Latest activity by

+ 260

Projects

Support the following initiatives from IfcOpenShell.

Top financial contributors

Individuals

1
FOSS-is-the-future

$7,800USD since Feb 2024

2
BAUPUNKTNULL AG

$3,250USD since Dec 2022

3
Randolph

$2,700USD since Aug 2023

4
Gortemaker Algra Feenstra

$2,024USD since Dec 2024

5
Matthew Fuller

$2,000USD since Apr 2021

6
1ncognito

$1,850USD since Oct 2023

7
Dion Moult

$1,550USD since Dec 2020

8
Tomasz

$1,500USD since Nov 2023

9
carlopav

$1,455USD since Nov 2022

10
Lawrence Giroux

$1,300USD since Apr 2024

Organizations

1
Cyril Waechter BIM Insight

$9,600USD since Nov 2022

2
BIMvoice

$6,110USD since Jul 2023

3
PlaniBIM SA

$3,400USD since Feb 2023

4
OpeningDesign

$2,122.1USD since Apr 2023

5
Spectar

$950USD since Jan 2021

6
Aether Engineering

$530USD since Sep 2022

7
Tietoa Finland Oy

$500USD since Feb 2022

8
Vyer Technologies

$150USD since Aug 2025

9
Agents of Architecture

$50USD since Nov 2023

IfcOpenShell is all of us

Our contributors264

Thank you for supporting IfcOpenShell.

Dion Moult

Admin

$1,550USD

Thomas Krijnen

Admin

$150USD

Cyril Waechte...

Corporate Sponsor

$9,600USD

FOSS-is-the-f...

Corporate Sponsor

$7,800USD

BIMvoice

Corporate Sponsor

$6,110USD

PlaniBIM SA

Corporate Sponsor

$3,400USD

Randolph

Corporate Sponsor

$2,700USD

OpeningDesign

Basic Corporate

$2,122USD

Matthew Fuller

Basic Corporate

$2,000USD

Budget

Transparent and open finances.

+$30.00USD
Completed
Contribution #561547

Credit from Losepacific toIfcOpenShell •

+$20.00USD
Completed
Contribution #600488

Credit from Guest toIfcOpenShell •

+$5.00USD
Completed
Contribution #900499
$
Today’s balance

$16,097.73USD

Total raised

$75,168.15USD

Total disbursed

$59,070.42USD

Estimated annual budget

$49,885.78USD

About

OpenSourceBIM helps finance the development and promotion of Open Source software for BIM. Software we are helping develop include:
  • IfcOpenShell, a C++ and Python IFC developer library for developing cross-platform OpenBIM apps
  • Bonsai (previously known as theBlenderBIM Add-on), a Blender extension to natively author IFC models
  • IfcConvert, a CLI utility to convert from IFC to glTF, XML, SVG, OBJ, DAE, and more.
  • IfcCSV, a CLI utility and library to manage IFC data using spreadsheets
  • IfcDiff, a CLI utility and library to do deep semantic comparisons of IFC models
  • IfcClash, a CLI utility and library for IFC clash detection
  • BCF, a Python developer library for the BIM Collaboration Format
  • bSDD, a Python developer library for the buildingSMART Data Dictionary API
  • ... and more than 10 other developer libraries and CLI apps
Our work has also contributed to a number of academic publications and research projects for OpenBIM analysis, including voxel analysis, drawing generation, and BMS data. Our software is also being taught at a number of academic institutions including the University of Applied Sciences and Arts Northwestern Switzerland, MSc-education of Architecture, Civil Engineering and Construction & Robotics tracks at RWTH Aachen University and TU Eindhoven, and the Zigurat Global Institute for Technology.

Our software also helps power others in the industry, and other free software, such as FreeCAD's BIM Workbench.

Our team

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