Keith Clarke has joined the London office of W.S. Atkins as CEO. The firm is the parent company of U.S.-based Hanscomb Faithful & Gould, a construction management and project services firm. Most recently, he served as executive vice president at Skanska AB, a construction services and project development firm headquartered in Stockholm, Sweden. Also, from 1979 to 1989, Clarke was executive vice president for development and design at the New York City Public Development Corp.

The Flintco Companies Inc., a commercial contractor based in Tulsa, Okla., has appointed David Parkes as senior vice president for its California division in Sacramento. Previously, he spent 17 years with McCarthy Building Companies Inc., serving as president of its Northern California division.

DIONISIO

Los Angeles, Calif.-based AECOM Technology Corp., an engineering and architectural firm, has named John M. Dionisio as its executive vice president and chief operating officer. He will be headquartered in the firm’s New York City offices. Dionisio has spent the past six years as president and CEO of DMJM +HARRIS, one of AECOM’s major operation companies. Prior to that, he was with the architect-engineer firm Frederic R. Harris, which after a 1986 merger became DMJM+HARRIS Inc. Dionisio also serves as chairman of DMJM+HARRIS. Fred W. Werner, formerly chief operating officer of Frederic R. Harris and then DMJM+HARRIS, will replace Dionisio as president.

CLC Associates Inc., a Denver-based firm focusing on the planning and design of private sector developments for the retail, commercial, residential and hospitality markets, has hired Walt Dutko as chief operating officer. He previously provided business consulting services to architects, engineers and attorneys, as well as to CLC through his own consulting firm, P& L Management Consultants. Before that, Dutko served as a chief financial officer at Merrick & Co., and a principal at Woodward-Clyde, where he spent over 27 years.

David S. Crawford has been elected president and chief operating officer of Sundt Construction Inc., headquartered in Tempe, Ariz. Most recently he was head of the company’s Building Group. During his 35-year tenure with Sundt, he has served in a variety of capacities, such as manager of construction operations for the building division, Phoenix area manager, project director, project manager, project engineer and project superintendent.

Charlotte, N.C.-based HLM Design, an architect, engineer and planner, has appointed Sheila Cahnman as vice president to lead the management team of the Chicago office. She has been with the company for 21 years and is currently principal-in-charge and project manager for the 250,000-sq-ft Comer Children’s Hospital at University of Chicago.

Cummins & Barnard Inc., a consulting, engineering and construction management firm based in Ann Arbor, Mich., has hired James R. Connell as principal. He will assume the duties and responsibilities of president. He had been vice president and projects director in Black & Veatch’s energy engineering & construction division. The firm also has announced that William H. Dammon III has moved from the position of president and will assume the role of CEO. John E. Barber will remain as chairman of the board.

SLATER

Morris L. Slater has joined the Manhattan-based consulting engineering firm Ambrosino, DePinto & Schmieder as head of its plumbing and fire protection division. He is a 37-year veteran of the plumbing and fire protection engineering field. Slater most recently was employed by Flack & Kurtz Consulting Engineers LLP. While there he served as a vice president, head of the plumbing and fire protection department.

St. Louis-based HOK, a global architectural firm specializing in planning, design and delivery solutions for buildings and communities, has promoted David Buckley to vice president. He is a member of the architecture group and most recently worked as a designer on the Southeast Regional Treatment Center in Madison, Ind., and Stephenson Research and Technology Center in Norman, Okla.

Builders Group, a Manhattan-based construction services firm, has promoted Allan Brot to executive vice president of construction and development. He also serves as co-president and principal of BG Builders, the firm’s base-building division, which focuses on ground-up residential construction and major infrastructure and restoration projects. Brot also has worked for Esposito Concrete, a concrete subcontracting firm, where he was head of operations.

John Adams Dix has been appointed project director/architecture for A. Epstein and Sons International Inc., a Chicago-based architecture and engineering firm. He will lead the design efforts of Mc4West LLC, the design-build team developing and constructing the McCormick Place West Expansion. Previously, he was managing director and treasurer for DeStefano and Partners.

PCL Construction Services Inc., based in Denver, has appointed Bob Martz as regional vice president of its Southwest U.S. operations. He will be based in Glendale, Calif. In his new role, he will oversee the firm’s operations in California, Arizona and Nevada. Martz joined PCL in 1981 as a field engineer and has progressed through the project management stream to a variety of senior positions, including the management of several PCL districts. Prior to his newly appointed position, he was regional vice president of the British Columbia operations. The parent company is PCL Enterprises Inc.