Rallo

Michael Rallo Jr.
Middle-management expertise helped make him a top player
33, Senior Project Manager
Paric Corp.
O'Fallon, Mo.

Michael Rallo Jr.'s leadership skills and innovative thinking provided Paric with the front-line middle-management skills it required to compete for ever-larger projects. Today, he serves as point person and prime client contact for Paric's largest projects. In the past three years, Rallo has led construction teams that have commenced or delivered projects valued at $350 million. He is a leader in Paric's Better Builder Program, which provides training for both junior and senior builders. Rallo also volunteers at the AGC Construction Career Center, an inner-city high school.

Rumpf

Peter Rumpf
His digital expertise has driven some of the region's top projects
32, Integrated Construction Manager
Mortenson Construction
Elk Grove Village, Ill.

His command of building information modeling made Peter Rumpf the obvious choice to coordinate all digital representations of the $1-billion, 1.25-million-sq-ft Ann & Robert H. Lurie Children's Hospital of Chicago, a task that required management of more than 30 coordinators and modelers. Rumpf has advanced the development of an internal Web 2.0 communications tool at Mortenson, significantly improving how the builder shares its best practices nationwide.

Sanders

Beau Sanders
His mastery of complexities landed him in the role of educator
31, Project Manager
GRAEF
Milwaukee

A creative thinker with a keen grasp of complex engineering issues, Beau Sanders serves as chairman of GRAEF's structural group's continuing education committee, which organizes more than 20 educational seminars a year. In his free time, Sanders assembled and presented a 12-week PE/SE review class for GRAEF's staff of engineers. He is actively involved in the Wisconsin Chapter of the American Society of Civil Engineers, which last year named him Young Civil Engineer of the Year. Sanders advises students on their senior design projects at the University of Wisconsin in Madison.

Slattery

Amy Slattery
This prolific designer seeks to raise the profile of designing women
33, Associate
BNIM
Kansas City, Mo.

Amy Slattery recently served as a project architect and design coordinator for the Kauffman Center for the Performing Arts in Kansas City, Mo., for which she spent extended periods of time in the Boston offices of project designer Moshe Safdie & Associates. Despite her participation in several high-profile projects, Slattery is perhaps best known for her role in founding Women in Design Kansas City, an organization dedicated to recognizing and advancing the work of women in the design profession. Slattery received a 2011 AIA National Young Architects award.

Summer

Robert Summers
His business models enrich poor rural communities
34, Principal
Schultz and Summers Engineering
Poplar Bluff, Mo.

In addition to managing 65 technicians in four offices, Robert Summers has been instrumental in developing business models that allow companies such as his to assist poor rural communities in obtaining vital services. To date, Schultz and Summers has assisted more than 50 communities in resolving serious quality issues relating to drinking water and sewage systems. Summers recently led the firm's efforts to help FEMA rebuild tornado-ravaged high school ball fields in Joplin, Mo., and repair the Birds Point levee in Southeast Missouri.

Taylor

Chuck Taylor
This communicator consistently delivers messages worth hearing
38, Director of Operations
Englewood Construction
Lemont, Ill.

As director of operations with the nascent Englewood Construction, an enterprise he helped found in 2004, Chuck Taylor cold-called American Girl and pursued the retailer for a full year until Englewood was hired to build out its Michigan Avenue store in Chicago. In 2011, insurer State Farm cold-called Englewood to execute a new retail concept partially on the strength of Englewood's strong online presence, much of which was programmed by Taylor. Taylor is co-author of Hard Hat Chat, a blog focused almost exclusively on commercial construction. He also was instrumental in the recent launch of Englewood's new YouTube video channel, which is also known as Hard Hat Chat.

Todd

Peter Todd
This health-care specialist takes a special interest in child care
34, Owner's Agent/Program Manager
The Boldt Co.
Milwaukee

When Palos Community Hospital requested a single source of responsibility for a near $500-million makeover of its Palos Heights, Ill.-based campus, The Boldt Co. turned the assignment over to Peter Todd, who at age 32 was promoted to owner's agent to execute the project. By then, he was already a veteran of large-scale health-care projects. Todd serves on the board of directors for the Milwaukee-based Ebenezer Child Care Centers, a nonprofit child-care organization. He also is active with United Way Milwaukee.

Volpe

Brian Volpe
His long-span solutions span the globe
37, Vice President
Thornton Tomasetti
Chicago

Highly skilled in structural design, project management and integrated modeling of structural steel connections, Brian Volpe oversees projects in the aviation, commercial, health-care, industrial, mixed-use and sports sectors and is an expert in erection engineering, having worked on many complex long-span structures throughout the U.S. and abroad. Volpe has published numerous papers and has made presentations at several seminars and conferences.

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Zack

Megan Zack
Her designs set a gold standard
34, Director of Sustainability
Hartshorne Plunkard Architecture
Chicago

Megan Zack was project architect for Park Huron, a luxury high-rise apartment tower in Chicago and the first facility of its kind in Illinois to achieve LEED-Gold certification. She currently serves as co-president and board member with the University of Illinois-Chicago's Architecture Alumni Association and volunteers with the Ravenswood Manor Urban Renewal Project on Chicago's North Side.