Subscriptions portfolio? Even when I was into lots of stuff, that would have been rather a grand description. More like a subscriptions portaloo.
I once used to belong to a cycling club to which I used to give a handful of used notes annually. With this I was affiliated to the CTC and BCF (though did no racing). Also was a youth leader with the YHA. A member of Audax UK for a very short time (not for me, I soon learned).
I kept up CTC membership for a few years after that.
A long gap then, after I moved to another part of the country for work, though I kept up YHA membership out of what in retrospect seems to have been misguided loyalty as the organisation went off in a different direction.
Even though I kept up a certain amount of casual cycling in the interim, all those memberships fell by the wayside for many years until I went part time, then retired. I learned that I wasn't really a club type of person.
Currently, just Cycling UK