Since 2008, several French and international institutional donors have contributed to the development of the software:
- 2008-2010: the initial needs assessment was made possible thanks to the support of the French Ministry of Foreign Affairs and International Development and the French Development Agency.
- 2010-2011: DG ECHO, the Catalan Agency for Cooperation and Development, Ile-de-France Regional Council, Rhône-Alpes Regional Council and the Charles Léopold Mayer Foundation for the Progress of Humankind provided the funding needed to launch the project operationally.
- 2011-2012: Rhône-Alpes Regional Council financed the needs assessment for Phase 2 of the project and the development of version 1.2 released in 2013.
- 2013-2016: the French Development Agency, Rhône-Alpes Regional Council and the Humanitarian Innovation Fund contributed to the development of the 2nd version of the software.
IDEIA was the technical partner involved in creating the 1st version of the software, from 2010 to 2014.
At the end of 2014, it was replaced by Netapsys, who took over the IT duties, and developed version 2 of Sigmah. At the end of 2015, two new companies joined the network of IT service providers: Code Lutin, and Atol Conseils & Développements.
In addition to these companies, a large number of software developers have contributed individually on a voluntary basis.
A computer ergonomics company (Adergo), software graphics specialists (société Home-made & Philippe Rouanet) and a software development company (société Rizom) have also actively taken part in the design of the software, the graphic charter and the website.
The Google Summer Of Code has also contributed to the development of Sigmah. In 2012, 2013, 2014 and 2016, it funded the work of computer engineers who corrected bugs and made improvements to the software over summer.
A partnership has been established with Coordination SUD (French NGO coordination platform) in connection with training and communication. As such, the training courses in Paris are co-organised with Coordination SUD, and are held in their premises.