What I can say is that work was performed in the United States by AggregateIQ, by SCL, and by Cambridge Analytica, and oftentimes those were for various PACs or campaigns or other electoral entities that were working in the same state, same region, or same electoral context. As to the specific discussions that AIQ has had with SCL, you'll have to ask AIQ.
One of my concerns was that the set-up of this arrangement would allow the various entities collectively to perform work that they otherwise would not be allowed to, had the regulator known that it was the same people just wearing different hats. The company SCL and Cambridge Analytica actually received legal advice on this and on other matters related to compliance in the United States. I'm not confident that they followed through with that advice.
AIQ's work in the United States potentially is questionable if they were, for example, sending non-American citizens down to advise or manage a campaign contrary to ethics rules and American law.