David W. Grzelak
Active connections
| Name | Gender | Age | Linked companies | Collaboration |
|---|---|---|---|---|
| Jeffery Leonard | M | 64 | 13 years | |
| Dan Malone | M | 64 | 17 years | |
| Richard Parod | M | 71 | 7 years | |
| Doug Britt | M | 59 | 8 years | |
| Eric Etchart | M | 67 | 9 years | |
| Robert Bauer | M | 65 | 9 years | |
| Tracy Jokinen | F | 55 | 8 years | |
| Edward Rizzuti | M | 54 | 9 years | |
| Lorie Tekorius | F | 57 | 5 years | |
| Stephen Benkovic | M | - |
The Pennsylvania State University
| 54 years |
| Richard Raborn | M | 58 | 9 years | |
| Janet Pollock | F | 65 | 11 years | |
| Lori Sullivan | F | 54 | 13 years | |
| Matteo Arduini | M | 51 | 5 years |
Connections Chart
Multi-company connection
Former connections
| Name | Gender | Age | Linked companies | Collaboration |
|---|---|---|---|---|
| James B. Skaggs | M | 86 | 20 years | |
| Noboru Sato | M | - |
Komatsu America Corp.
 Komatsu America Corp. Trucks/Construction/Farm MachineryProducer Manufacturing Komatsu America Corp. manufactures construction and mining equipment. Its products include dump trucks, backhoes, crushers, graders, hydraulic excavators, crawler carriers, wheel loaders, and bulldozers. The company was founded on February 17, 1970 and is headquartered in Rolling Meadows, IL. | 5 years |
| Gary L. Martin | M | 77 | 10 years | |
| Allen Carlson | M | 73 | 20 years | |
| Melanie M. Nealis | F | 49 | 4 years | |
| Roderick Baty | M | 70 | 13 years | |
| K. Boyer | M | 72 |
The Pennsylvania State University
| 13 years |
| Hisashi Shinozuka | M | 69 |
Komatsu America Corp.
Komatsu America Corp. Trucks/Construction/Farm MachineryProducer Manufacturing Komatsu America Corp. manufactures construction and mining equipment. Its products include dump trucks, backhoes, crushers, graders, hydraulic excavators, crawler carriers, wheel loaders, and bulldozers. The company was founded on February 17, 1970 and is headquartered in Rolling Meadows, IL. | - |
| Roy Franklin | M | 70 |
Boart Longyear Ltd.
 Boart Longyear Ltd. Engineering & ConstructionIndustrial Services Boart Longyear Ltd. engages in the provision of drilling services, drilling equipment, and performance tooling. It operates through the Global Drilling Services and Global Products segments. The Global Drilling Services segment provides services to companies in mining, energy, and other industries. The Global Products segment manufactures and sells drilling equipment and performance tooling to customers in the drilling services and mining industries. The company was founded by Edmund J. Longyear in 1890 and is headquartered in West Valley City, UT. | 5 years |
| Kennon Guglielmo | M | 57 | 5 years | |
| Jerry E. Goldress | M | 93 | 16 years | |
| Tanya Fratto | F | 63 |
Boart Longyear Ltd.
Boart Longyear Ltd. Engineering & ConstructionIndustrial Services Boart Longyear Ltd. engages in the provision of drilling services, drilling equipment, and performance tooling. It operates through the Global Drilling Services and Global Products segments. The Global Drilling Services segment provides services to companies in mining, energy, and other industries. The Global Products segment manufactures and sells drilling equipment and performance tooling to customers in the drilling services and mining industries. The company was founded by Edmund J. Longyear in 1890 and is headquartered in West Valley City, UT. | 4 years |
| David McLemore | M | - |
Boart Longyear Ltd.
Boart Longyear Ltd. Engineering & ConstructionIndustrial Services Boart Longyear Ltd. engages in the provision of drilling services, drilling equipment, and performance tooling. It operates through the Global Drilling Services and Global Products segments. The Global Drilling Services segment provides services to companies in mining, energy, and other industries. The Global Products segment manufactures and sells drilling equipment and performance tooling to customers in the drilling services and mining industries. The company was founded by Edmund J. Longyear in 1890 and is headquartered in West Valley City, UT. | - |
| Jon Hirtle | M | - |
The Pennsylvania State University
| 12 years |
| Carlyle F. Griffin | M | 78 |
The Pennsylvania State University
| 6 years |
| Mahlon D. Dennis | M | - |
The Pennsylvania State University
| 3 years |
| Erik Wilde | M | - |
Komatsu America Corp.
Komatsu America Corp. Trucks/Construction/Farm MachineryProducer Manufacturing Komatsu America Corp. manufactures construction and mining equipment. Its products include dump trucks, backhoes, crushers, graders, hydraulic excavators, crawler carriers, wheel loaders, and bulldozers. The company was founded on February 17, 1970 and is headquartered in Rolling Meadows, IL. | 11 years |
| James Mead | M | 77 |
The Pennsylvania State University
| 4 years |
| David N. Wormley | M | 83 | 25 years | |
| James E. vander Mey | M | 81 |
The Pennsylvania State University
| 3 years |
| John C. Crelling | M | - |
The Pennsylvania State University
| 5 years |
| Donald J. Douglass | M | 92 | 42 years | |
| Michael D. Keebaugh | M | 78 |
The Pennsylvania State University
| 6 years |
| Helen Cornell | F | 66 | 5 years | |
| Mark T. Lucero | M | 73 |
Gannon University
| 6 years |
| Donald Newman | M | 59 |
Boart Longyear Ltd.
Boart Longyear Ltd. Engineering & ConstructionIndustrial Services Boart Longyear Ltd. engages in the provision of drilling services, drilling equipment, and performance tooling. It operates through the Global Drilling Services and Global Products segments. The Global Drilling Services segment provides services to companies in mining, energy, and other industries. The Global Products segment manufactures and sells drilling equipment and performance tooling to customers in the drilling services and mining industries. The company was founded by Edmund J. Longyear in 1890 and is headquartered in West Valley City, UT. | 4 years |
| Gregory J. Yurek | M | 77 |
The Pennsylvania State University
| 5 years |
| Roger Alan Brown | M | 79 |
Boart Longyear Ltd.
Boart Longyear Ltd. Engineering & ConstructionIndustrial Services Boart Longyear Ltd. engages in the provision of drilling services, drilling equipment, and performance tooling. It operates through the Global Drilling Services and Global Products segments. The Global Drilling Services segment provides services to companies in mining, energy, and other industries. The Global Products segment manufactures and sells drilling equipment and performance tooling to customers in the drilling services and mining industries. The company was founded by Edmund J. Longyear in 1890 and is headquartered in West Valley City, UT. | 4 years |
| Allon Lefever | M | - |
The Pennsylvania State University
| 2 years |
| Kevin J. Coyne | M | - |
The Pennsylvania State University
| 4 years |
| Nina Gomez Zotter | F | - |
The Pennsylvania State University
| 6 years |
| Frank H. Cardini | M | - |
The Pennsylvania State University
| 4 years |
| Bill Cavalluzzo | M | - |
The Pennsylvania State University
| 4 years |
| C. Alan Walker | M | - |
The Pennsylvania State University
| 2 years |
| Lorraine H. Brown | M | - |
The Pennsylvania State University
| 3 years |
| Bill Layo | M | - |
The Pennsylvania State University
| 4 years |
| Steven B. Satrom | M | 77 |
The Pennsylvania State University
| 4 years |
| Edward Joseph Wilson | M | - |
The Pennsylvania State University
| 4 years |
| Curt D. Steel | M | - |
The Pennsylvania State University
| 4 years |
| E. Marcie Emas | F | - |
The Pennsylvania State University
| 4 years |
| Manuel Stamatakis | M | 76 |
The Pennsylvania State University
| 4 years |
| James M. Hanavan | M | 78 |
The Pennsylvania State University
| 4 years |
| Francis Patrick Newell | M | - |
The Pennsylvania State University
| 4 years |
| Richard D. Irwin | M | - |
The Pennsylvania State University
| 4 years |
| Robert Whalen | M | - |
The Pennsylvania State University
| 4 years |
| Randall Buchanan | M | 77 |
The Pennsylvania State University
| 4 years |
| David M. Joyner | M | - |
The Pennsylvania State University
| 4 years |
| Steve J. Dobi | M | - |
The Pennsylvania State University
| 2 years |
| Louis Grabowsky | M | 72 |
The Pennsylvania State University
| 4 years |
| Darrel L. Williams | M | - |
The Pennsylvania State University
| 3 years |
| S. Robert August | M | 75 |
The Pennsylvania State University
| 4 years |
| Jack J. Kessler | M | - |
The Pennsylvania State University
| 3 years |
| Richard P. Switzer | M | - |
The Pennsylvania State University
| 4 years |
| Paul S. Bates | M | 76 |
The Pennsylvania State University
| 4 years |
| Walter R. Young | M | 78 |
The Pennsylvania State University
| 2 years |
| Philip Gresh | M | 75 |
The Pennsylvania State University
| 4 years |
| Reynolds Bish | M | 71 |
The Pennsylvania State University
| 4 years |
| Glenn R. Mahone | M | 78 |
The Pennsylvania State University
| 4 years |
| Sherwood S. Lutz | M | 72 |
The Pennsylvania State University
| 4 years |
| Richard D. Pummell | M | 77 | 6 years | |
| Gerald Goodman | M | 76 |
The Pennsylvania State University
| 6 years |
| George Zoffinger | M | 75 |
The Pennsylvania State University
| 4 years |
| Dennis Meteny | M | 70 |
The Pennsylvania State University
| 4 years |
| Roy H. Stahl | M | 71 |
The Pennsylvania State University
| 4 years |
| Peter Carlino | M | 77 |
The Pennsylvania State University
| 4 years |
| John S. Howell | M | - |
The Pennsylvania State University
| 4 years |
| Ralph Wayne Atwell | M | - |
The Pennsylvania State University
| 4 years |
| Kenneth Frazier | M | 69 |
The Pennsylvania State University
| 4 years |
| William J. Cavalluzzo | M | 79 |
The Pennsylvania State University
| 4 years |
| Eric N. Prystowsky | M | 76 |
The Pennsylvania State University
| 4 years |
| Steve Markowitz | M | 70 |
The Pennsylvania State University
| 4 years |
| Thomas J. Renehan | M | - |
The Pennsylvania State University
| 4 years |
| T. Randall Iles | M | - |
The Pennsylvania State University
| 4 years |
| Daniel J. Zajdel | M | - |
The Pennsylvania State University
| 4 years |
| Jack Baldwin | M | 86 |
The Pennsylvania State University
| - |
| William P. Jancosko | M | - |
The Pennsylvania State University
| 4 years |
| Harry L. Anthony | M | 76 |
The Pennsylvania State University
| 4 years |
| Robert G. Gottlieb | M | - |
The Pennsylvania State University
| 4 years |
| Gerald Joseph Parsons | M | 72 |
The Pennsylvania State University
| 4 years |
| F. Timothy Boylan | M | - |
The Pennsylvania State University
| 4 years |
| Sam Heltman | M | - |
The Pennsylvania State University
| 4 years |
| Robert Berglund | M | 78 |
The Pennsylvania State University
| 4 years |
| Gary A. Fetterolf | M | - |
The Pennsylvania State University
| 4 years |
| Robert E. Byrd | M | - |
The Pennsylvania State University
| 4 years |
| Robert D. Stemler | M | - |
The Pennsylvania State University
| 4 years |
| Stuart Schooley | M | - |
The Pennsylvania State University
| 4 years |
Statistics
| Country | Connections | % of total |
|---|---|---|
| United States | 100 | 100.00% |
Age of Connections
Active
Past
Male
Female
Members of the board
Executives
Origin of connections
- Stock Market
- Insiders
- David W. Grzelak
- Personal Network