CaSE (the Campaign for Science & Engineering) has published a helpful list of MPs with STEM (or more precisely STEMM including Medicine) backgrounds which you may find of interest - http://blog.sciencecampaign.org.uk/wp-content/uploads/2015/05/CaSE-brief...
As Caroline in our team has already pointed out, this may not be entirely complete as some of the newer MPs might not yet be included. If you know of anyone who should be there, I'm sure CaSE would like to hear from you - or let me know and I'll make sure they include them.
Do let us know if you have contact with your MP regarding STEM education or the activities of the SLP, and we will of course look out for opportunities to highlight the great work going on whenever we have a chance.
With best wishes,