Who we are
Our Senior Team
A diverse and experienced team, equipped to deliver a common vision.
Warren Kwei
Founder & Senior Managing PartnerAs the Senior Managing Partner, Warren counsels executives on strategy, operations and technology.
In addition to ensuring clients receive the greatest value from their change capital, his remit includes the management of ESHER’s partner eco-system, including venture funds, private equity and technology providers.
Warren is primarily accountable for delivering ESHER’s vision.

Keith McMahon
PartnerAs a Partner, Keith ensures our Blue Chip client outcomes are achieved and that ESHER delivers value through the provision of our Consultants.
In addition to his remit of managing our financial services & banking portfolios, he also has responsibility for evolving and adapting the way in which we support our customers.
Keith is primarily accountable for client services and managing the development of ESHER’s people.

Julian Thornley
PartnerAs a Partner, Julian ensures our SME client outcomes are delivered and that our digital capabilities ensure we remain a pioneer in technology advisory and delivery.
In addition to his remit for delivering strategic or complex products and projects, Julian manages our HR/HR tech & regulatory portfolios.
Julian is primarily accountable for ESHER’s intellectual property and for managing governance & operations.

Kate Kennedy
Strategic AdvisorKate provides strategy and commercial support to the business, inclusive of M&A advisory and iterative development of ESHERs 3 year plan.
Kate has held P&L and Digital related Executive Committee positions in numerous organisations, prior to which she was a Strategy Consultant at BAIN.