Nick Nelson (M) and Craig Schwitter have been made partners at consultant Buro Happold.
David Medley (M) has been appointed as an associate by Knapp Hicks & Partners to head up its geotechnical engineering department.
Parkman has appointed Peter Cullen (M) regional director for the West Midlands. He has more than 33 years experience in both the public and private sectors.
Mouchel deputy chief executive Ray Evans, formerly Southwark director of contract services, is to be joined at Mouchel's local government group by Bob Hogg from Southampton City Council and John Turner from the Department for Education and Employment. All three report to James Measures, director of the group.
Dr Ray Hobbs, independent geotechnical consultant, has been elected chairman of the ICE's offshore engineering society.
Helen McCallum has been appointed director of corporate affairs for the Environment Agency. She will take up her position on July 2.
Claude Darmon is leaving Alstom Power to lead the management buyout of Alstom's contracting sector. He is succeeded by Alexis Fries.
Adrian Marsh has been appointed chairman and Fergus Collie managing director of STATS following the retirement of the founder, John Glanville (F).