[needusername]

> Geronimo - IBM - Websphere

I think you mean WebSphere Application Server Community Edition which has nothing to do with WebSphere Application Server (what is commonly known as Websphere). Quite frankly I don't understand why Apache didn't kill off Geronimo over half a decade ago (other than IBM $$$): it is essentially dead, has no users and only IBM committers. But at least it will end soon, IBM as already announced that they will kill WASCE in favor of Liberty Profile.

> Apache CXF, Apache Camel - Red hat - Fuse

CXF is also the basis for the EAP SOAP stack. I don't know how "big" Fuse is compared to EAP.

> Felix - Adobe - Adobe AEM

Not so sure here. It goes back to Oscar from ObjectWeb. While it is certainly used by Adobe AEM it's also used by several other products even Eclipse Equinox these days.