International construction and support services group John Mowlem & Company has appointed John Swales managing director of Environmental Services Group, its geo-environmental and testing services arm.
York firm William Birch & Sons has appointed Chris Birch managing director. He succeeds John Birch, who is retiring after 40 years with the firm.
Knighton Construction has appointed Chris Walker business development manager.
Laing Homes has appointed Graham Wells to the central procurement team in its head office. Christina Sawyer (left) has joined the South-west Thames division's marketing team.
Andy Wilkins has been been promoted to land director of Cala Homes' Midlands division.
Property development company Cathedral Group has appointed Paul Isaacs managing director.
Management and infrastructure consultant Hyder Consulting has appointed Stewart Tyler regional managing director for East Asia.
Project management consultant MDA has promoted Adrienne Shufflebotham to associate in its Manchester office.
Anthony Umney, director of tunnelling at FaberMaunsell has joined SCOSSS, the IStructE/ICE's Standing Committee on Structural Safety.
The Concrete Society has appointed Dr John Newman president.
Architectural products manufacturer Colt International has promoted Chris Malam to UK contracts manager.
Grant McMahon (left) has joined DuPont Tyvek as business manager for Scotland.