The original discussion was here: http://support.iatistandard.org/hc/en-us/articles/214388446-Additions-to-Organisation-Type-codelist
Based on my experience of working with a wide range of organisations using IATI, and two new upcoming cohorts of organisations (Belgium government partners and DFID Tier 2 partners in 2018), I would like to propose for the following codes to be included in the organisation-type list:
Trade Union: Use for: trade union bodies and networks. Trade unions will be publishing to IATI for the Belgian government from 2018.
Social enterprise: Use for: organisations that are not NGOs and that are led by an economic, social, cultural, or environmental mission consistent with a public or community benefit (https://en.wikipedia.org/wiki/Social_enterprise). This is distinct from the private sector organisation type, which is applied to organisations that create and retain profit for their shareholders. This includes a growing number of UK and Tier 2 in-country organisations partnering with DFID from 2018.
Religious organisation: Use-case: faith-based organisations such as churches, that implement projects but are not registered NGOs or public bodies. Examples are partners receiving aid funds through faith-based organisations such as Tearfund http://www.tearfund.org/en/about_us/how_we_work/our_current_partners/ or the Caritas network.
Civil Society Organisation: There's a growing use/preference by donors and non-profit organisations for the term 'Civil Society Organisation' (CSO) over NGO. For example both DFID and the EU refer to CSOs eg. http://ec.europa.eu/europeaid/civil-society_en in a way that includes NGOs but extends it beyond just NGOs. Given the inclusion of new cohorts and the move towards funding Southern CSOs directly, my proposal is to replace the organisation types 'international NGO', 'national NGO', 'regional NGO' with one organisation type - civil society organisation.
Institute: Use for: organisations which are not government departments, public sector or universities (ie academic). Again, this particularly applies to think tanks and the new Belgian organisations that are between government and civil society. I think this one might need a clear definition.
I also support the following proposal:
Individual: See above. Use for: for individual supporters, or individual researchers implementing a research project - this scenario is typically found with the think tanks I work with. As Yohanna mentioned, the role can be clarifed as either 'funding' or 'implementing'.