A decade ago large listed corporations were worried whether private equity firms’ governance model and access to long-term capital would undermine them.

The natural response has been the greatest form of flattery: copy their approach.

US corporations have increasingly moved from corporate venturing, including taking minority equity stakes in third-party private entrepreneurs, to also exploring and investing larger amounts in later-stage companies.

The latest addition, Comcast, has committed $4bn over 10 years to a new investment firm being set up…