Accenture UK's BSI is closer to "business" consulting.
I believe that the situation with Wetfeet etc. comes about because the emphasis in Accenture college hiring used to be on ACN (Accenture Consulting Network) vs. ATS (Accenture Technology Solutions) until very recently.
I think that ACN approximately included business consulting, systems integration, enterprise applications, strategy, change, supply chain, and the like. ATS approximately included pure technology and outsourcing.
The US and the UK have slightly different hiring models. In the US it is still oriented around ACN/ATS whereas in the UK the Technology, BSI and Business Consulting streams are split out more clearly at graduate level.
As Wetfeet. Vault, etc. are based around historic employee reports, and are also US-oriented, they tend to talk about the ACN/ATS division as those are the categories their data falls into.