LONDON—Zeno Group has hired Hannah Williams as director, technology, for its UK operations. Williams joins from Grayling, where she ran the technology team in the UK and also led business development. Williams spent nearly nine years at Grayling and its predecessor Trimedia, working across the consumer entertainment, search, security, systems integration and telecoms sectors.

LONDON—Hill+Knowlton Strategies has appointed Mark Hamilton as an associate director in it London issues and crisis management team. He joins H+K from The Pinewood Studios Group where he spent more than three years as communications and public affairs manager. He will support Tim Luckett, co-chair of global crisis communications, and Giles Read, director, managing clients in the retail and leisure and energy and industrials sectors and will help roll out H+K’s crisis simulation tool, Flight School.

MOSCOW—Buman Media, a Moscow-based public relations and social media consultancy serving the business-to-business and consumer markets, has hired Michael Murphy & Ltd—formed by the former Grayling chief executive—to provide strategic counsel. Murphy will provide Buman Media with support to grow and develop its offering and become better known internationally. Buman is a member of Oriella PR Network of technology PR firms.

LONDON—Aggreko, a leader in temporary power and temperature control services, has appointed Grayling to run its international trade communications after a competitive pitch process. Grayling will manage Aggreko's international trade B2B communications and provide an integrated PR service including press office functions, corporate communications and event support. The account will be led by Billy Partridge, director of Grayling Scotland, with teams in the Edinburgh, London and Dubai offices.

STOCKHOLM—Swedish property company Kungsleden has named Marie Mannholt as marketing and corporate communications manager, responsible for brand building, marketing and corporate communications. Most recently, Mannholt served as a self-employed consultant in property development and lettings.