Confidence in the US-UK business corridor rose to 6.7 out of 10 in 2026 from 6.6 last year, according to the sixth Transatlantic Confidence Index from BritishAmerican Business and Bain & Company. The survey of 74 leading transatlantic companies found US companies’ confidence in doing business in the UK edged up from 6.3 to 6.4, but investors continued to flag tax, regulation and energy costs. UK companies’ confidence in doing business in the US rebounded from 7.5 to 8.1, with 86% planning to moderately or significantly increase investment despite concerns about political stability, immigration and trade policy. The respondents collectively employ nearly 275,000 people across sectors including financial services, technology, healthcare, media, telecommunications and manufacturing.