Class Composition for UK Tech Workers

Anyone aware if a class composition analysis has ever been done for British tech workers? Such an analysis would seek to answer questions like:

What are the key sectors for capital in the UK?

Which section of the working class are best placed to disrupt these?

Who makes up the working class in Britain?

Where do they work and how?

What are the levels of (dis)organisation of the labour movement?

How does this map on different sectors and sections of the workforce?

What are key tools used by bosses to control workers?

How do they resist this?

Source: The Class Composition Project // Notes From Below