As a founder who tried to apply and build a couple of consortiums with my previous startup, for FP7 and Horizon2020 project funding, I totally understand the fears. This is the key part of the article:
> Only 12% of bids for Horizon 2020 funds are successful, a rate that falls by more than half in highly competitive areas. Given the low probability of winning funds at the best of times, Gorman said it was natural risk aversion to be cautious of UK partners. UK politicians simply don’t understand this, and think it is ‘business as usual’, at least until negotiations have been completed. They are wrong, the problems start right now
Brexit could endanger a whole project if british companies are members of your consortium. There's quite a bit of research money at stake, and some companies depend a lot on this kind of funding.
Once you find the companies that are going to partner with you and apply, then starts a long journey together, of several years (2 to 5) until the projects are finished... you can't just start the projects, and "do business as usual" and then see how UK companies are forced to abandon ship after few months for political reasons. The projects could collapse, and this is too much uncertainty.
IMO until the doubts are 100% cleared and we have a new EU UK treaty for science collabs in place, many EU companies will be reluctant to partner with UK companies/institutions. Brexit is bad for UK research and UK scientists knew this...
https://www.facebook.com/scientistsforeu