United House, Hilson Moran and Sisk are among the firms announcing appointments and promotions this week

Rick de Blaby

Clients

United House has appointed Rick de Blaby (pictured) as chief executive. De Blaby will take over from Jeffrey Adams in August, when Adams becomes chairman.

Consultants

Hyder Consulting has appointed a new chairman, Jeffrey Hume, who will succeed current chairman Sir Alan Thomas after the firm’s annual general meeting on 1 August 2014.

Hilson Moran has appointed Jason Horner as head of infrastructure services.

Leadership and Management has appointed Seth Cooper as director of corporate services.

Contractors

SPIE UK has appointed Steve Gibbs as managing director of its facilities services business.

GB Group has appointed Jon Hinson as business unit director for the north.

Sisk has appointed Mike Peasland as a non-executive director.

T Clarke has appointed Tony Giddings as non-executive director.

Severfield has appointed Tony Osbaldiston and Kevin Whiteman as non-executive directors.